Whois Class

Properties   Methods   Events   Config Settings   Errors  

The Whois class allows you to query a WHOIS Server for Domain registration information.

Class Name

IPWorks_Whois

Procedural Interface

 ipworks_whois_open();
 ipworks_whois_close($res);
 ipworks_whois_register_callback($res, $id, $function);
 ipworks_whois_get_last_error($res);
 ipworks_whois_get_last_error_code($res);
 ipworks_whois_set($res, $id, $index, $value);
 ipworks_whois_get($res, $id, $index);
 ipworks_whois_do_config($res, $configurationstring);
 ipworks_whois_do_doevents($res);
 ipworks_whois_do_interrupt($res);
 ipworks_whois_do_query($res, $domain);
 ipworks_whois_do_reset($res);

Remarks

This component implements the WHOIS protocol defined in RFC 954.

To use the class, simply call the Query method and set the Domain parameter to the domain you wish to retrieve information for. This will trigger a WHOIS search on the domain. Upon completion of the search, the DomainInfo property contains the information about the domain.

If the Server property is empty, then a search is performed automatically at "whois.internic.net" for the appropriate WHOIS server for the domain, and the Server property is set to the server found.

Property List

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The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

DefaultServer	The default server from which to retrieve registrar information.
DomainInfo	The information that is returned by the Server .
FirewallAutoDetect	This property tells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallType	This property determines the type of firewall to connect through.
FirewallHost	This property contains the name or IP address of firewall (optional).
FirewallPassword	This property contains a password if authentication is to be used when connecting through the firewall.
FirewallPort	This property contains the transmission control protocol (TCP) port for the firewall Host .
FirewallUser	This property contains a user name if authentication is to be used connecting through a firewall.
Idle	The current status of the class.
LocalHost	The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
Server	The server to request domain information from.
ServerPort	The server port for Whois (default 43).
Timeout	A timeout for the class.

Method List

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The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

Config	Sets or retrieves a configuration setting.
DoEvents	Processes events from the internal message queue.
Interrupt	Interrupt the current method.
Query	Get information about a domain.
Reset	Reset the class.

Event List

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The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

Connected	This event is fired immediately after a connection completes (or fails).
ConnectionStatus	This event is fired to indicate changes in the connection state.
Disconnected	This event is fired when a connection is closed.
Error	Information about errors during data delivery.

Config Settings

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The following is a list of config settings for the class with short descriptions. Click on the links for further details.

ConnectionTimeout	Sets a separate timeout value for establishing a connection.
FirewallAutoDetect	Tells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallHost	Name or IP address of firewall (optional).
FirewallPassword	Password to be used if authentication is to be used when connecting through the firewall.
FirewallPort	The TCP port for the FirewallHost;.
FirewallType	Determines the type of firewall to connect through.
FirewallUser	A user name if authentication is to be used connecting through a firewall.
KeepAliveInterval	The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveTime	The inactivity time in milliseconds before a TCP keep-alive packet is sent.
Linger	When set to True, connections are terminated gracefully.
LingerTime	Time in seconds to have the connection linger.
LocalHost	The name of the local host through which connections are initiated or accepted.
LocalPort	The port in the local host where the class binds.
MaxLineLength	The maximum amount of data to accumulate when no EOL is found.
MaxTransferRate	The transfer rate limit in bytes per second.
ProxyExceptionsList	A semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAlive	Determines whether or not the keep alive socket option is enabled.
TcpNoDelay	Whether or not to delay when sending packets.
UseIPv6	Whether to use IPv6.
LogSSLPackets	Controls whether SSL packets are logged when using the internal security API.
OpenSSLCADir	The path to a directory containing CA certificates.
OpenSSLCAFile	Name of the file containing the list of CA's trusted by your application.
OpenSSLCipherList	A string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedData	The data to seed the pseudo random number generator (PRNG).
ReuseSSLSession	Determines if the SSL session is reused.
SSLCACertFilePaths	The paths to CA certificate files on Unix/Linux.
SSLCACerts	A newline separated list of CA certificate to use during SSL client authentication.
SSLCheckCRL	Whether to check the Certificate Revocation List for the server certificate.
SSLCheckOCSP	Whether to use OCSP to check the status of the server certificate.
SSLCipherStrength	The minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuites	The cipher suite to be used in an SSL negotiation.
SSLEnabledProtocols	Used to enable/disable the supported security protocols.
SSLEnableRenegotiation	Whether the renegotiation_info SSL extension is supported.
SSLIncludeCertChain	Whether the entire certificate chain is included in the SSLServerAuthentication event.
SSLKeyLogFile	The location of a file where per-session secrets are written for debugging purposes.
SSLNegotiatedCipher	Returns the negotiated ciphersuite.
SSLNegotiatedCipherStrength	Returns the negotiated ciphersuite strength.
SSLNegotiatedCipherSuite	Returns the negotiated ciphersuite.
SSLNegotiatedKeyExchange	Returns the negotiated key exchange algorithm.
SSLNegotiatedKeyExchangeStrength	Returns the negotiated key exchange algorithm strength.
SSLNegotiatedVersion	Returns the negotiated protocol version.
SSLSecurityFlags	Flags that control certificate verification.
SSLServerCACerts	A newline separated list of CA certificate to use during SSL server certificate validation.
TLS12SignatureAlgorithms	Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.
TLS12SupportedGroups	The supported groups for ECC.
TLS13KeyShareGroups	The groups for which to pregenerate key shares.
TLS13SignatureAlgorithms	The allowed certificate signature algorithms.
TLS13SupportedGroups	The supported groups for (EC)DHE key exchange.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallData	Used to send extra data to the firewall.
InBufferSize	The size in bytes of the incoming queue of the socket.
OutBufferSize	The size in bytes of the outgoing queue of the socket.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitive	Whether sensitive data is masked in log messages.
ProcessIdleEvents	Whether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillis	The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPI	Tells the class whether or not to use the system security libraries or an internal implementation.

DefaultServer Property (IPWorks_Whois Class)

The default server from which to retrieve registrar information.

Object Oriented Interface

public function getDefaultServer();


public function setDefaultServer($value);

Procedural Interface

ipworks_whois_get($res, 1 );


ipworks_whois_set($res, 1, $value );

Default Value

'whois.internic.net'

Remarks

If Server is empty, then the class will attempt to connect to DefaultServer and determine the WHOIS server of the registrar of the domain. The Server property will then be set to the name of the WHOIS server of the registrar, and a WHOIS request will be issued against that server.

The default value for DefaultServer is "whois.internic.net".

Data Type

String

DomainInfo Property (IPWorks_Whois Class)

The information that is returned by the Server .

Object Oriented Interface

public function getDomainInfo();

Procedural Interface

ipworks_whois_get($res, 2 );

Default Value

''

Remarks

The default value is an empty string. After Domain is set and the request completes, it contains the data returned by the Server.

This property is read-only.

Data Type

String

FirewallAutoDetect Property (IPWorks_Whois Class)

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Object Oriented Interface

public function getFirewallAutoDetect();


public function setFirewallAutoDetect($value);

Procedural Interface

ipworks_whois_get($res, 3 );


ipworks_whois_set($res, 3, $value );

Default Value

false

Remarks

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Data Type

Boolean

FirewallType Property (IPWorks_Whois Class)

This property determines the type of firewall to connect through.

Object Oriented Interface

public function getFirewallType();


public function setFirewallType($value);

Procedural Interface

ipworks_whois_get($res, 4 );


ipworks_whois_set($res, 4, $value );

Default Value

0

Remarks

This property determines the type of firewall to connect through. The applicable values are as follows:

fwNone (0)	No firewall (default setting).
fwTunnel (1)	Connect through a tunneling proxy. FirewallPort is set to 80.
fwSOCKS4 (2)	Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
fwSOCKS5 (3)	Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
fwSOCKS4A (10)	Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Data Type

Integer

FirewallHost Property (IPWorks_Whois Class)

This property contains the name or IP address of firewall (optional).

Object Oriented Interface

public function getFirewallHost();


public function setFirewallHost($value);

Procedural Interface

ipworks_whois_get($res, 5 );


ipworks_whois_set($res, 5, $value );

Default Value

''

Remarks

This property contains the name or IP address of firewall (optional). If a FirewallHost is given, the requested connections will be authenticated through the specified firewall when connecting.

If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the class fails with an error.

Data Type

String

FirewallPassword Property (IPWorks_Whois Class)

This property contains a password if authentication is to be used when connecting through the firewall.

Object Oriented Interface

public function getFirewallPassword();


public function setFirewallPassword($value);

Procedural Interface

ipworks_whois_get($res, 6 );


ipworks_whois_set($res, 6, $value );

Default Value

''

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Data Type

String

FirewallPort Property (IPWorks_Whois Class)

This property contains the transmission control protocol (TCP) port for the firewall Host .

Object Oriented Interface

public function getFirewallPort();


public function setFirewallPort($value);

Procedural Interface

ipworks_whois_get($res, 7 );


ipworks_whois_set($res, 7, $value );

Default Value

0

Remarks

This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.

Note: This property is set automatically when FirewallType is set to a valid value. See the description of the FirewallType property for details.

Data Type

Integer

FirewallUser Property (IPWorks_Whois Class)

This property contains a user name if authentication is to be used connecting through a firewall.

Object Oriented Interface

public function getFirewallUser();


public function setFirewallUser($value);

Procedural Interface

ipworks_whois_get($res, 8 );


ipworks_whois_set($res, 8, $value );

Default Value

''

Remarks

This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the class fails with an error.

Data Type

String

Idle Property (IPWorks_Whois Class)

The current status of the class.

Object Oriented Interface

public function getIdle();

Procedural Interface

ipworks_whois_get($res, 9 );

Default Value

true

Remarks

Idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.

This property is read-only.

Data Type

Boolean

LocalHost Property (IPWorks_Whois Class)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Object Oriented Interface

public function getLocalHost();


public function setLocalHost($value);

Procedural Interface

ipworks_whois_get($res, 10 );


ipworks_whois_set($res, 10, $value );

Default Value

''

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

Server Property (IPWorks_Whois Class)

The server to request domain information from.

Object Oriented Interface

public function getServer();


public function setServer($value);

Procedural Interface

ipworks_whois_get($res, 11 );


ipworks_whois_set($res, 11, $value );

Default Value

''

Remarks

This property should be set to the valid Internet address of computer running WHOIS services. If the address is not valid or the specified Server is not running WHOIS services, the class fails with an error when Domain is set.

If the address is empty, then the class will attempt to connect to DefaultServer and determine the WHOIS server of the registrar of the domain. The Server property will then be set to the name of the WHOIS server of the registrar, and a WHOIS request will be issued against that server.

If the class is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.

Data Type

String

ServerPort Property (IPWorks_Whois Class)

The server port for Whois (default 43).

Object Oriented Interface

public function getServerPort();


public function setServerPort($value);

Procedural Interface

ipworks_whois_get($res, 12 );


ipworks_whois_set($res, 12, $value );

Default Value

43

Remarks

This property contains the server port for Whois (default 43). A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.

This property is not available at design time.

Data Type

Integer

Timeout Property (IPWorks_Whois Class)

A timeout for the class.

Object Oriented Interface

public function getTimeout();


public function setTimeout($value);

Procedural Interface

ipworks_whois_get($res, 13 );


ipworks_whois_set($res, 13, $value );

Default Value

60

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the class will wait for the operation to complete before returning control.

The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the class fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

Config Method (IPWorks_Whois Class)

Sets or retrieves a configuration setting.

Object Oriented Interface

public function doConfig($configurationstring);

Procedural Interface

ipworks_whois_do_config($res, $configurationstring);

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

DoEvents Method (IPWorks_Whois Class)

Processes events from the internal message queue.

Object Oriented Interface

public function doEvents();

Procedural Interface

ipworks_whois_do_doevents($res);

Remarks

When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.

Interrupt Method (IPWorks_Whois Class)

Interrupt the current method.

Object Oriented Interface

public function doInterrupt();

Procedural Interface

ipworks_whois_do_interrupt($res);

Remarks

If there is no method in progress, Interrupt simply returns, doing nothing.

Query Method (IPWorks_Whois Class)

Get information about a domain.

Object Oriented Interface

public function doQuery($domain);

Procedural Interface

ipworks_whois_do_query($res, $domain);

Remarks

When this method is called, a request is sent to the Server for the information that is stored about the domain. The server response is made available through the DomainInfo property.

Reset Method (IPWorks_Whois Class)

Reset the class.

Object Oriented Interface

public function doReset();

Procedural Interface

ipworks_whois_do_reset($res);

Remarks

This method will reset the class's properties to their default values.

Connected Event (IPWorks_Whois Class)

This event is fired immediately after a connection completes (or fails).

Object Oriented Interface

public function fireConnected($param);

Procedural Interface

ipworks_whois_register_callback($res, 1, array($this, 'fireConnected'));

Parameter List

 'statuscode'
 'description'

Remarks

If the connection is made normally, StatusCode is 0 and Description is "OK".

If the connection fails, StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Please refer to the Error Codes section for more information.

ConnectionStatus Event (IPWorks_Whois Class)

This event is fired to indicate changes in the connection state.

Object Oriented Interface

public function fireConnectionStatus($param);

Procedural Interface

ipworks_whois_register_callback($res, 2, array($this, 'fireConnectionStatus'));

Parameter List

 'connectionevent'
 'statuscode'
 'description'

Remarks

The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.

The ConnectionEvent parameter indicates the type of connection event. Values may include the following:

	Firewall connection complete.
	Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable).
	Remote host connection complete.
	Remote host disconnected.
	SSL or S/Shell connection broken.
	Firewall host disconnected.

StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Disconnected Event (IPWorks_Whois Class)

This event is fired when a connection is closed.

Object Oriented Interface

public function fireDisconnected($param);

Procedural Interface

ipworks_whois_register_callback($res, 3, array($this, 'fireDisconnected'));

Parameter List

 'statuscode'
 'description'

Remarks

If the connection is broken normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.

Please refer to the Error Codes section for more information.

Error Event (IPWorks_Whois Class)

Information about errors during data delivery.

Object Oriented Interface

public function fireError($param);

Procedural Interface

ipworks_whois_register_callback($res, 4, array($this, 'fireError'));

Parameter List

 'errorcode'
 'description'

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Config Settings (Whois Class)

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

TCPClient Config Settings

ConnectionTimeout:   Sets a separate timeout value for establishing a connection. When set, this configuration setting allows you to specify a different timeout value for establishing a connection. Otherwise, the class will use Timeout for establishing a connection and transmitting/receiving data.

FirewallAutoDetect:   Tells the class whether or not to automatically detect and use firewall system settings, if available. This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallHost:   Name or IP address of firewall (optional). If a FirewallHost is given, requested connections will be authenticated through the specified firewall when connecting. If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned. Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPassword:   Password to be used if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error. Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPort:   The TCP port for the FirewallHost;. The FirewallPort is set automatically when FirewallType is set to a valid value. Note: This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallType:   Determines the type of firewall to connect through. The appropriate values are as follows: 0 No firewall (default setting). 1 Connect through a tunneling proxy. FirewallPort is set to 80. 2 Connect through a SOCKS4 Proxy. FirewallPort is set to 1080. 3 Connect through a SOCKS5 Proxy. FirewallPort is set to 1080. 10 Connect through a SOCKS4A Proxy. FirewallPort is set to 1080. Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallUser:   A user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the Firewall. If the authentication fails, the class fails with an error. Note: This setting is provided for use by classs that do not directly expose Firewall properties.

KeepAliveInterval:   The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the interval at which the successive keep-alive packets are sent in milliseconds. This system default if this value is not specified here is 1 second. Note: This value is not applicable in macOS.

KeepAliveTime:   The inactivity time in milliseconds before a TCP keep-alive packet is sent. When set, TCPKeepAlive will automatically be set to True. By default, the operating system will determine the time a connection is idle before a Transmission Control Protocol (TCP) keep-alive packet is sent. This system default if this value is not specified here is 2 hours. In many cases, a shorter interval is more useful. Set this value to the desired interval in milliseconds.

Linger:   When set to True, connections are terminated gracefully. This property controls how a connection is closed. The default is True. In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires. In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection. The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the class returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes). Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.

LingerTime:   Time in seconds to have the connection linger. LingerTime is the time, in seconds, the socket connection will linger. This value is 0 by default, which means it will use the default IP timeout.

LocalHost:   The name of the local host through which connections are initiated or accepted. The LocalHost setting contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address. In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. If the class is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

LocalPort:   The port in the local host where the class binds. This must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine. Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established. LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error. This; setting is useful when trying to connect to services that require a trusted port in the client side. An example is the remote shell (rsh) service in UNIX systems.

MaxLineLength:   The maximum amount of data to accumulate when no EOL is found. MaxLineLength is the size of an internal buffer, which holds received data while waiting for an EOL string. If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset. If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset. The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.

MaxTransferRate:   The transfer rate limit in bytes per second. This configuration setting can be used to throttle outbound TCP traffic. Set this to the number of bytes to be sent per second. By default, this is not set and there is no limit.

ProxyExceptionsList:   A semicolon separated list of hosts and IPs to bypass when using a proxy. This configuration setting optionally specifies a semicolon-separated list of hostnames or IP addresses to bypass when a proxy is in use. When requests are made to hosts specified in this property, the proxy will not be used. For instance: www.google.com;www.nsoftware.com

TCPKeepAlive:   Determines whether or not the keep alive socket option is enabled. If set to True, the socket's keep-alive option is enabled and keep-alive packets will be sent periodically to maintain the connection. Set KeepAliveTime and KeepAliveInterval to configure the timing of the keep-alive packets. Note: This value is not applicable in Java.

TcpNoDelay:   Whether or not to delay when sending packets. When true, the socket will send all data that is ready to send at once. When false, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm. By default, this config is set to false.

UseIPv6:   Whether to use IPv6. When set to 0 (default), the class will use IPv4 exclusively. When set to 1, the class will use IPv6 exclusively. To instruct the class to prefer IPv6 addresses, but use IPv4 if IPv6 is not supported on the system, this setting should be set to 2. The default value is 0. Possible values are: 0 IPv4 Only 1 IPv6 Only 2 IPv6 with IPv4 fallback

SSL Config Settings

LogSSLPackets:   Controls whether SSL packets are logged when using the internal security API. When SSLProvider is set to Internal, this setting controls whether SSL packets should be logged. By default, this setting is False, as it is only useful for debugging purposes. When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received. Enabling this setting has no effect if SSLProvider is set to Platform.

OpenSSLCADir:   The path to a directory containing CA certificates. This functionality is available only when the provider is OpenSSL. The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g. 9d66eef0.0, 9d66eef0.1 etc). OpenSSL recommends to use the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCAFile:   Name of the file containing the list of CA's trusted by your application. This functionality is available only when the provider is OpenSSL. The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by -----BEGIN CERTIFICATE----- ... (CA certificate in base64 encoding) ... -----END CERTIFICATE----- sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCipherList:   A string that controls the ciphers to be used by SSL. This functionality is available only when the provider is OpenSSL. The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".

OpenSSLPrngSeedData:   The data to seed the pseudo random number generator (PRNG). This functionality is available only when the provider is OpenSSL. By default OpenSSL uses the device file "/dev/urandom" to seed the PRNG and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.

ReuseSSLSession:   Determines if the SSL session is reused. If set to true, the class will reuse the context if and only if the following criteria are met: The target host name is the same. The system cache entry has not expired (default timeout is 10 hours). The application process that calls the function is the same. The logon session is the same. The instance of the class is the same.

SSLCACertFilePaths:   The paths to CA certificate files on Unix/Linux. This setting specifies the paths on disk to CA certificate files on Unix/Linux. The value is formatted as a list of paths separated by semicolons. The class will check for the existence of each file in the order specified. When a file is found the CA certificates within the file will be loaded and used to determine the validity of server or client certificates. The default value is: /etc/ssl/ca-bundle.pem;/etc/pki/tls/certs/ca-bundle.crt;/etc/ssl/certs/ca-certificates.crt;/etc/pki/tls/cacert.pem

SSLCACerts:   A newline separated list of CA certificate to use during SSL client authentication. This setting specifies one or more CA certificates to be included in the request when performing SSL client authentication. Some servers require the entire chain, including CA certificates, to be presented when performing SSL client authentication. The value of this setting is a newline (CrLf) separated list of certificates. For instance: -----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----

SSLCheckCRL:   Whether to check the Certificate Revocation List for the server certificate. This setting specifies whether the class will check the Certificate Revocation List specified by the server certificate. If set to 1 or 2, the class will first obtain the list of CRL URLs from the server certificate's CRL distribution points extension. The class will then make HTTP requests to each CRL endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation the class fails with an error. When set to 0 (default) the CRL check will not be performed by the class. When set to 1, it will attempt to perform the CRL check, but will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported. This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.

SSLCheckOCSP:   Whether to use OCSP to check the status of the server certificate. This setting specifies whether the class will use OCSP to check the validity of the server certificate. If set to 1 or 2, the class will first obtain the OCSP URL from the server certificate's OCSP extension. The class will then locate the issuing certificate and make an HTTP request to the OCSP endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation the class fails with an error. When set to 0 (default) the class will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported. This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.

SSLCipherStrength:   The minimum cipher strength used for bulk encryption. This minimum cipher strength largely dependent on the security modules installed on the system. If the cipher strength specified is not supported, an error will be returned when connections are initiated. Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event. Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application. When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.

SSLEnabledCipherSuites:   The cipher suite to be used in an SSL negotiation. The enabled cipher suites to be used in SSL negotiation. By default, the enabled cipher suites will include all available ciphers ("*"). The special value "*" means that the class will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered. Multiple cipher suites are separated by semicolons. Example values when SSLProvider is set to Platform: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=CALG_AES_256"); obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES"); Possible values when SSLProvider is set to Platform include: CALG_3DES CALG_3DES_112 CALG_AES CALG_AES_128 CALG_AES_192 CALG_AES_256 CALG_AGREEDKEY_ANY CALG_CYLINK_MEK CALG_DES CALG_DESX CALG_DH_EPHEM CALG_DH_SF CALG_DSS_SIGN CALG_ECDH CALG_ECDH_EPHEM CALG_ECDSA CALG_ECMQV CALG_HASH_REPLACE_OWF CALG_HUGHES_MD5 CALG_HMAC CALG_KEA_KEYX CALG_MAC CALG_MD2 CALG_MD4 CALG_MD5 CALG_NO_SIGN CALG_OID_INFO_CNG_ONLY CALG_OID_INFO_PARAMETERS CALG_PCT1_MASTER CALG_RC2 CALG_RC4 CALG_RC5 CALG_RSA_KEYX CALG_RSA_SIGN CALG_SCHANNEL_ENC_KEY CALG_SCHANNEL_MAC_KEY CALG_SCHANNEL_MASTER_HASH CALG_SEAL CALG_SHA CALG_SHA1 CALG_SHA_256 CALG_SHA_384 CALG_SHA_512 CALG_SKIPJACK CALG_SSL2_MASTER CALG_SSL3_MASTER CALG_SSL3_SHAMD5 CALG_TEK CALG_TLS1_MASTER CALG_TLS1PRF Example values when SSLProvider is set to Internal: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_DH_ANON_WITH_AES_128_CBC_SHA"); Possible values when SSLProvider is set to Internal include: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 TLS_RSA_WITH_AES_128_GCM_SHA256 TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended) TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended) TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended) TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended) TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 TLS_RSA_WITH_AES_256_CBC_SHA256 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 TLS_RSA_WITH_AES_256_CBC_SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA TLS_DHE_RSA_WITH_AES_256_CBC_SHA TLS_ECDH_RSA_WITH_AES_256_CBC_SHA TLS_DHE_DSS_WITH_AES_256_CBC_SHA TLS_RSA_WITH_AES_128_CBC_SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA TLS_ECDH_RSA_WITH_AES_128_CBC_SHA TLS_DHE_RSA_WITH_AES_128_CBC_SHA TLS_DHE_DSS_WITH_AES_128_CBC_SHA TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA TLS_RSA_WITH_DES_CBC_SHA TLS_DHE_RSA_WITH_DES_CBC_SHA TLS_DHE_DSS_WITH_DES_CBC_SHA TLS_RSA_WITH_RC4_128_MD5 TLS_RSA_WITH_RC4_128_SHA When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported: TLS_AES_256_GCM_SHA384 TLS_CHACHA20_POLY1305_SHA256 TLS_AES_128_GCM_SHA256 SSLEnabledCipherSuites is used together with SSLCipherStrength.

SSLEnabledProtocols:   Used to enable/disable the supported security protocols. Used to enable/disable the supported security protocols. Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values: TLS1.3 12288 (Hex 3000) TLS1.2 3072 (Hex C00) (Default) TLS1.1 768 (Hex 300) (Default) TLS1 192 (Hex C0) (Default) SSL3 48 (Hex 30) SSL2 12 (Hex 0C) SSLEnabledProtocols - TLS 1.3 Notes By default when TLS 1.3 is enabled the class will use the internal TLS implementation when the SSLProvider is set to Automatic for all editions. In editions which are designed to run on Windows SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is only supported on Windows 11 / Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version. If set to 1 (Platform provider) please be aware of the following notes: The platform provider is only available on Windows 11 / Windows Server 2022 and up. SSLEnabledCipherSuites and other similar SSL configuration settings are not supported. If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2 the above restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.

SSLEnableRenegotiation:   Whether the renegotiation_info SSL extension is supported. This setting specifies whether the renegotiation_info SSL extension will be used in the request when using the internal security API. This setting is true by default, but can be set to false to disable the extension. This setting is only applicable when SSLProvider is set to Internal.

SSLIncludeCertChain:   Whether the entire certificate chain is included in the SSLServerAuthentication event. This setting specifies whether the Encoded parameter of the SSLServerAuthentication event contains the full certificate chain. By default this value is False and only the leaf certificate will be present in the Encoded parameter of the SSLServerAuthentication event. If set to True all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.

SSLKeyLogFile:   The location of a file where per-session secrets are written for debugging purposes. This setting optionally specifies the full path to a file on disk where per-session secrets are stored for debugging purposes. When set, the class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values. Note: This setting is only applicable when SSLProvider is set to Internal.

SSLNegotiatedCipher:   Returns the negotiated ciphersuite. Returns the ciphersuite negotiated during the SSL handshake. Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipher[connId]");

SSLNegotiatedCipherStrength:   Returns the negotiated ciphersuite strength. Returns the strength of the ciphersuite negotiated during the SSL handshake. Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherStrength[connId]");

SSLNegotiatedCipherSuite:   Returns the negotiated ciphersuite. Returns the ciphersuite negotiated during the SSL handshake represented as a single string. Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherSuite[connId]");

SSLNegotiatedKeyExchange:   Returns the negotiated key exchange algorithm. Returns the key exchange algorithm negotiated during the SSL handshake. Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchange[connId]");

SSLNegotiatedKeyExchangeStrength:   Returns the negotiated key exchange algorithm strength. Returns the strenghth of the key exchange algorithm negotiated during the SSL handshake. Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchangeStrength[connId]");

SSLNegotiatedVersion:   Returns the negotiated protocol version. Returns the protocol version negotiated during the SSL handshake. Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedVersion[connId]");

SSLSecurityFlags:   Flags that control certificate verification. The following flags are defined (specified in hexadecimal notation). They can be or-ed together to exclude multiple conditions: 0x00000001 Ignore time validity status of certificate. 0x00000002 Ignore time validity status of CTL. 0x00000004 Ignore non-nested certificate times. 0x00000010 Allow unknown Certificate Authority. 0x00000020 Ignore wrong certificate usage. 0x00000100 Ignore unknown certificate revocation status. 0x00000200 Ignore unknown CTL signer revocation status. 0x00000400 Ignore unknown Certificate Authority revocation status. 0x00000800 Ignore unknown Root revocation status. 0x00008000 Allow test Root certificate. 0x00004000 Trust test Root certificate. 0x80000000 Ignore non-matching CN (certificate CN not-matching server name). This functionality is currently not available when the provider is OpenSSL.

SSLServerCACerts:   A newline separated list of CA certificate to use during SSL server certificate validation. This setting optionally specifies one or more CA certificates to be used when verifying the server certificate. When verifying the server's certificate the certificates trusted by the system will be used as part of the verification process. If the server's CA certificates are not installed to the trusted system store, they may be specified here so they are included when performing the verification process. This setting should only be set if the server's CA certificates are not already trusted on the system and cannot be installed to the trusted system store. The value of this setting is a newline (CrLf) separated list of certificates. For instance: -----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----

TLS12SignatureAlgorithms:   Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal. This setting specifies the allowed server certificate signature algorithms when SSLProvider is set to Internal and SSLEnabledProtocols is set to allow TLS 1.2. When specified the class will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the class fails with an error. The format of this value is a comma separated list of hash-signature combinations. For instance: component.SSLProvider = TCPClientSSLProviders.sslpInternal; component.Config("SSLEnabledProtocols=3072"); //TLS 1.2 component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa"); The default value for this setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa. In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.

TLS12SupportedGroups:   The supported groups for ECC. This setting specifies a comma separated list of named groups used in TLS 1.2 for ECC. The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1. When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported: "ecdhe_secp256r1" (default) "ecdhe_secp384r1" (default) "ecdhe_secp521r1" (default)

TLS13KeyShareGroups:   The groups for which to pregenerate key shares. This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. The groups specified here will have key share data pregenerated locally before establishing a connection. This can prevent an additional round trip during the handshake if the group is supported by the server. The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting. Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group. In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so. The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072 The values are ordered from most preferred to least preferred. The following values are supported: "ecdhe_x25519" (default) "ecdhe_x448" "ecdhe_secp256r1" (default) "ecdhe_secp384r1" (default) "ecdhe_secp521r1" "ffdhe_2048" (default) "ffdhe_3072" (default) "ffdhe_4096" "ffdhe_6144" "ffdhe_8192"

TLS13SignatureAlgorithms:   The allowed certificate signature algorithms. This setting holds a comma separated list of allowed signature algorithms. Possible values are: "ed25519" (default) "ed448" (default) "ecdsa_secp256r1_sha256" (default) "ecdsa_secp384r1_sha384" (default) "ecdsa_secp521r1_sha512" (default) "rsa_pkcs1_sha256" (default) "rsa_pkcs1_sha384" (default) "rsa_pkcs1_sha512" (default) "rsa_pss_sha256" (default) "rsa_pss_sha384" (default) "rsa_pss_sha512" (default) The default value is rsa_pss_sha256,rsa_pss_sha384,rsa_pss_sha512,rsa_pkcs1_sha256,rsa_pkcs1_sha384,rsa_pkcs1_sha512,ecdsa_secp256r1_sha256,ecdsa_secp384r1_sha384,ecdsa_secp521r1_sha512,ed25519,ed448. This setting is only applicable when SSLEnabledProtocols includes TLS 1.3.

TLS13SupportedGroups:   The supported groups for (EC)DHE key exchange. This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. This setting should only be modified if there is a specific reason to do so. The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192 The values are ordered from most preferred to least preferred. The following values are supported: "ecdhe_x25519" (default) "ecdhe_x448" (default) "ecdhe_secp256r1" (default) "ecdhe_secp384r1" (default) "ecdhe_secp521r1" (default) "ffdhe_2048" (default) "ffdhe_3072" (default) "ffdhe_4096" (default) "ffdhe_6144" (default) "ffdhe_8192" (default)

Socket Config Settings

AbsoluteTimeout:   Determines whether timeouts are inactivity timeouts or absolute timeouts. If AbsoluteTimeout is set to True, any method which does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout. Note: This option is not valid for UDP ports.

FirewallData:   Used to send extra data to the firewall. When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g. headers for custom authentication schemes).

InBufferSize:   The size in bytes of the incoming queue of the socket. This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. Increasing the value of the InBufferSize setting can provide significant improvements in performance in some cases. Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

OutBufferSize:   The size in bytes of the outgoing queue of the socket. This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. Increasing the value of the OutBufferSize setting can provide significant improvements in performance in some cases. Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Base Config Settings

BuildInfo:   Information about the product's build. When queried, this setting will return a string containing information about the product's build.

CodePage:   The system code page used for Unicode to Multibyte translations. The default code page is Unicode UTF-8 (65001). The following is a list of valid code page identifiers: Identifier Name 037 IBM EBCDIC - U.S./Canada 437 OEM - United States 500 IBM EBCDIC - International 708 Arabic - ASMO 708 709 Arabic - ASMO 449+, BCON V4 710 Arabic - Transparent Arabic 720 Arabic - Transparent ASMO 737 OEM - Greek (formerly 437G) 775 OEM - Baltic 850 OEM - Multilingual Latin I 852 OEM - Latin II 855 OEM - Cyrillic (primarily Russian) 857 OEM - Turkish 858 OEM - Multilingual Latin I + Euro symbol 860 OEM - Portuguese 861 OEM - Icelandic 862 OEM - Hebrew 863 OEM - Canadian-French 864 OEM - Arabic 865 OEM - Nordic 866 OEM - Russian 869 OEM - Modern Greek 870 IBM EBCDIC - Multilingual/ROECE (Latin-2) 874 ANSI/OEM - Thai (same as 28605, ISO 8859-15) 875 IBM EBCDIC - Modern Greek 932 ANSI/OEM - Japanese, Shift-JIS 936 ANSI/OEM - Simplified Chinese (PRC, Singapore) 949 ANSI/OEM - Korean (Unified Hangul Code) 950 ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC) 1026 IBM EBCDIC - Turkish (Latin-5) 1047 IBM EBCDIC - Latin 1/Open System 1140 IBM EBCDIC - U.S./Canada (037 + Euro symbol) 1141 IBM EBCDIC - Germany (20273 + Euro symbol) 1142 IBM EBCDIC - Denmark/Norway (20277 + Euro symbol) 1143 IBM EBCDIC - Finland/Sweden (20278 + Euro symbol) 1144 IBM EBCDIC - Italy (20280 + Euro symbol) 1145 IBM EBCDIC - Latin America/Spain (20284 + Euro symbol) 1146 IBM EBCDIC - United Kingdom (20285 + Euro symbol) 1147 IBM EBCDIC - France (20297 + Euro symbol) 1148 IBM EBCDIC - International (500 + Euro symbol) 1149 IBM EBCDIC - Icelandic (20871 + Euro symbol) 1200 Unicode UCS-2 Little-Endian (BMP of ISO 10646) 1201 Unicode UCS-2 Big-Endian 1250 ANSI - Central European 1251 ANSI - Cyrillic 1252 ANSI - Latin I 1253 ANSI - Greek 1254 ANSI - Turkish 1255 ANSI - Hebrew 1256 ANSI - Arabic 1257 ANSI - Baltic 1258 ANSI/OEM - Vietnamese 1361 Korean (Johab) 10000 MAC - Roman 10001 MAC - Japanese 10002 MAC - Traditional Chinese (Big5) 10003 MAC - Korean 10004 MAC - Arabic 10005 MAC - Hebrew 10006 MAC - Greek I 10007 MAC - Cyrillic 10008 MAC - Simplified Chinese (GB 2312) 10010 MAC - Romania 10017 MAC - Ukraine 10021 MAC - Thai 10029 MAC - Latin II 10079 MAC - Icelandic 10081 MAC - Turkish 10082 MAC - Croatia 12000 Unicode UCS-4 Little-Endian 12001 Unicode UCS-4 Big-Endian 20000 CNS - Taiwan 20001 TCA - Taiwan 20002 Eten - Taiwan 20003 IBM5550 - Taiwan 20004 TeleText - Taiwan 20005 Wang - Taiwan 20105 IA5 IRV International Alphabet No. 5 (7-bit) 20106 IA5 German (7-bit) 20107 IA5 Swedish (7-bit) 20108 IA5 Norwegian (7-bit) 20127 US-ASCII (7-bit) 20261 T.61 20269 ISO 6937 Non-Spacing Accent 20273 IBM EBCDIC - Germany 20277 IBM EBCDIC - Denmark/Norway 20278 IBM EBCDIC - Finland/Sweden 20280 IBM EBCDIC - Italy 20284 IBM EBCDIC - Latin America/Spain 20285 IBM EBCDIC - United Kingdom 20290 IBM EBCDIC - Japanese Katakana Extended 20297 IBM EBCDIC - France 20420 IBM EBCDIC - Arabic 20423 IBM EBCDIC - Greek 20424 IBM EBCDIC - Hebrew 20833 IBM EBCDIC - Korean Extended 20838 IBM EBCDIC - Thai 20866 Russian - KOI8-R 20871 IBM EBCDIC - Icelandic 20880 IBM EBCDIC - Cyrillic (Russian) 20905 IBM EBCDIC - Turkish 20924 IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol) 20932 JIS X 0208-1990 & 0121-1990 20936 Simplified Chinese (GB2312) 21025 IBM EBCDIC - Cyrillic (Serbian, Bulgarian) 21027 Extended Alpha Lowercase 21866 Ukrainian (KOI8-U) 28591 ISO 8859-1 Latin I 28592 ISO 8859-2 Central Europe 28593 ISO 8859-3 Latin 3 28594 ISO 8859-4 Baltic 28595 ISO 8859-5 Cyrillic 28596 ISO 8859-6 Arabic 28597 ISO 8859-7 Greek 28598 ISO 8859-8 Hebrew 28599 ISO 8859-9 Latin 5 28605 ISO 8859-15 Latin 9 29001 Europa 3 38598 ISO 8859-8 Hebrew 50220 ISO 2022 Japanese with no halfwidth Katakana 50221 ISO 2022 Japanese with halfwidth Katakana 50222 ISO 2022 Japanese JIS X 0201-1989 50225 ISO 2022 Korean 50227 ISO 2022 Simplified Chinese 50229 ISO 2022 Traditional Chinese 50930 Japanese (Katakana) Extended 50931 US/Canada and Japanese 50933 Korean Extended and Korean 50935 Simplified Chinese Extended and Simplified Chinese 50936 Simplified Chinese 50937 US/Canada and Traditional Chinese 50939 Japanese (Latin) Extended and Japanese 51932 EUC - Japanese 51936 EUC - Simplified Chinese 51949 EUC - Korean 51950 EUC - Traditional Chinese 52936 HZ-GB2312 Simplified Chinese 54936 Windows XP: GB18030 Simplified Chinese (4 Byte) 57002 ISCII Devanagari 57003 ISCII Bengali 57004 ISCII Tamil 57005 ISCII Telugu 57006 ISCII Assamese 57007 ISCII Oriya 57008 ISCII Kannada 57009 ISCII Malayalam 57010 ISCII Gujarati 57011 ISCII Punjabi 65000 Unicode UTF-7 65001 Unicode UTF-8 The following is a list of valid code page identifiers for Mac OS only: Identifier Name 1 ASCII 2 NEXTSTEP 3 JapaneseEUC 4 UTF8 5 ISOLatin1 6 Symbol 7 NonLossyASCII 8 ShiftJIS 9 ISOLatin2 10 Unicode 11 WindowsCP1251 12 WindowsCP1252 13 WindowsCP1253 14 WindowsCP1254 15 WindowsCP1250 21 ISO2022JP 30 MacOSRoman 10 UTF16String 0x90000100 UTF16BigEndian 0x94000100 UTF16LittleEndian 0x8c000100 UTF32String 0x98000100 UTF32BigEndian 0x9c000100 UTF32LittleEndian 65536 Proprietary

LicenseInfo:   Information about the current license. When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information: Product: The product the license is for. Product Key: The key the license was generated from. License Source: Where the license was found (e.g., RuntimeLicense, License File). License Type: The type of license installed (e.g., Royalty Free, Single Server). Last Valid Build: The last valid build number for which the license will work.

MaskSensitive:   Whether sensitive data is masked in log messages. In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to true to mask sensitive data. The default is false. This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

ProcessIdleEvents:   Whether the class uses its internal event loop to process events when the main thread is idle. If set to False, the class will not fire internal idle events. Set this to False to use the class in a background thread on Mac OS. By default, this setting is True.

SelectWaitMillis:   The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process. If there are no events to process when DoEvents is called, the class will wait for the amount of time specified here before returning. The default value is 20.

UseInternalSecurityAPI:   Tells the class whether or not to use the system security libraries or an internal implementation. When set to false, the class will use the system security libraries by default to perform cryptographic functions where applicable. Setting this setting to true tells the class to use the internal implementation instead of using the system security libraries. On Windows, this setting is set to false by default. On Linux/macOS, this setting is set to true by default. To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the OpenSSL Notes section.

Trappable Errors (Whois Class)

Whois Errors

	118   Firewall Error. Error message contains detailed description.
	125   Can't find registrar server for domain. Please supply in the Server property.
	301   Connection timed out.
	531   The class is busy performing the current action.

The class may also return one of the following error codes, which are inherited from other classes.

TCPClient Errors

	100   You cannot change the RemotePort at this time. A connection is in progress.
	101   You cannot change the RemoteHost (Server) at this time. A connection is in progress.
	102   The RemoteHost address is invalid (0.0.0.0).
	104   Already connected. If you want to reconnect, close the current connection first.
	106   You cannot change the LocalPort at this time. A connection is in progress.
	107   You cannot change the LocalHost at this time. A connection is in progress.
	112   You cannot change MaxLineLength at this time. A connection is in progress.
	116   RemotePort cannot be zero. Please specify a valid service port number.
	117   You cannot change the UseConnection option while the class is active.
	135   Operation would block.
	201   Timeout.
	211   Action impossible in control's present state.
	212   Action impossible while not connected.
	213   Action impossible while listening.
	301   Timeout.
	302   Could not open file.
	434   Unable to convert string to selected CodePage.
	1105   Already connecting. If you want to reconnect, close the current connection first.
	1117   You need to connect first.
	1119   You cannot change the LocalHost at this time. A connection is in progress.
	1120   Connection dropped by remote host.

SSL Errors

	270   Cannot load specified security library.
	271   Cannot open certificate store.
	272   Cannot find specified certificate.
	273   Cannot acquire security credentials.
	274   Cannot find certificate chain.
	275   Cannot verify certificate chain.
	276   Error during handshake.
	280   Error verifying certificate.
	281   Could not find client certificate.
	282   Could not find server certificate.
	283   Error encrypting data.
	284   Error decrypting data.

TCP/IP Errors

	10004   [10004] Interrupted system call.
	10009   [10009] Bad file number.
	10013   [10013] Access denied.
	10014   [10014] Bad address.
	10022   [10022] Invalid argument.
	10024   [10024] Too many open files.
	10035   [10035] Operation would block.
	10036   [10036] Operation now in progress.
	10037   [10037] Operation already in progress.
	10038   [10038] Socket operation on non-socket.
	10039   [10039] Destination address required.
	10040   [10040] Message too long.
	10041   [10041] Protocol wrong type for socket.
	10042   [10042] Bad protocol option.
	10043   [10043] Protocol not supported.
	10044   [10044] Socket type not supported.
	10045   [10045] Operation not supported on socket.
	10046   [10046] Protocol family not supported.
	10047   [10047] Address family not supported by protocol family.
	10048   [10048] Address already in use.
	10049   [10049] Can't assign requested address.
	10050   [10050] Network is down.
	10051   [10051] Network is unreachable.
	10052   [10052] Net dropped connection or reset.
	10053   [10053] Software caused connection abort.
	10054   [10054] Connection reset by peer.
	10055   [10055] No buffer space available.
	10056   [10056] Socket is already connected.
	10057   [10057] Socket is not connected.
	10058   [10058] Can't send after socket shutdown.
	10059   [10059] Too many references, can't splice.
	10060   [10060] Connection timed out.
	10061   [10061] Connection refused.
	10062   [10062] Too many levels of symbolic links.
	10063   [10063] File name too long.
	10064   [10064] Host is down.
	10065   [10065] No route to host.
	10066   [10066] Directory not empty
	10067   [10067] Too many processes.
	10068   [10068] Too many users.
	10069   [10069] Disc Quota Exceeded.
	10070   [10070] Stale NFS file handle.
	10071   [10071] Too many levels of remote in path.
	10091   [10091] Network subsystem is unavailable.
	10092   [10092] WINSOCK DLL Version out of range.
	10093   [10093] Winsock not loaded yet.
	11001   [11001] Host not found.
	11002   [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
	11003   [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
	11004   [11004] Valid name, no data record (check DNS setup).