ActiveDirectory Control

Properties Methods Events Config Settings Errors

The ActiveDirectory control can be used to authenticate users against Active Directory using Kerberos 5.0.

Syntax

ActiveDirectory

Remarks

The ActiveDirectory control authenticates users against Active Directory. Authentication is performed using the Kerberos protocol defined in RFC 1510 and RFC 4120.

Authentication

When Authenticate is called the control will attempt to authenticate the user with the Active Directory server. The control will communicate with the ADHost to obtain a service ticket and populate AuthToken. The following properties are required when calling this method:

SPN (required)
User (required)
Password (required)
ADHost (required)

A typical sequence of messages would be:

KRB_AS_REQ -> KDC
KRB_AS_REP <- KDC
KRB_TGS_REQ -> KDC
KRB_TGS_REP <- KDC
AuthToken is populated with the constructed KRB_AP_REP message.

Communication with the ADHost can be seen through the PITrail event.

Property List

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


ADHost	The domain name or IP address of the Active Directory server.
ADPort	The port for the Active Directory server.
AuthMechanism	The authentication mechanism to be used when connecting to the Active Directory server.
AuthToken	The authentication token.
Password	The user's password.
SPN	The Service Principal Name (SPN).
Timeout	The timeout for the control.
User	The name and domain of the user to authenticate.

Method List

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


Authenticate	Authenticates the user.
ChangePassword	Changes the password for the specified user.
Config	Sets or retrieves a configuration setting.
DoEvents	This method processes events from the internal message queue.
Interrupt	This method interrupts the current method.
ListComputers	Lists all computers in the directory.
ListGroupMembers	List all members of a group.
ListGroups	List all groups in the directory.
ListUserGroups	Lists all groups a user is a part of.
Reset	Resets the control properties to their default values.

Event List

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


ComputerList	Fired for each computer entry returned.
Error	Fired when information is available about errors during data delivery.
GroupList	Fired for each group entry returned.
Log	Fires once for each log message.
PITrail	Traces the messages sent to the server, and the respective replies.
UserList	Fired once for each user entry returned.

Config Settings

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


CredentialsCacheFile	The credentials cache file.
EncodeAuthToken	Whether to Base64 encode the AuthToken.
EncryptionTypes	The encryption types used during authentication.
Krb5Config	The clients Kerberos configuration file.
LogKerberosPackets	Whether to include the raw Kerberos packets in PITrail output.
LogLevel	The level of detail that is logged.
UsePlatformKerberosAPI	Whether to use the platform Kerberos API.
UseTCP	Whether TCP is used when establishing the connection.
ConnectionTimeout	Sets a separate timeout value for establishing a connection.
FirewallAutoDetect	Tells the control 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 control 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.
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.
CodePage	The system code page used for Unicode to Multibyte translations.
MaskSensitiveData	Whether sensitive data is masked in log messages.
UseInternalSecurityAPI	Whether or not to use the system security libraries or an internal implementation.

ADHost Property (ActiveDirectory Control)

The domain name or IP address of the Active Directory server.

Syntax

activedirectorycontrol.ADHost[=string]

Default Value

Remarks

This property specifies the IP address (IP number in dotted internet format) or Domain Name of the Active Directory server.

If this property is set to a Domain Name, a DNS request is initiated and upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.

Data Type

String

ADPort Property (ActiveDirectory Control)

The port for the Active Directory server.

Syntax

activedirectorycontrol.ADPort[=integer]

Default Value

Remarks

This property specifies the port for the Active Directory server. The default value is 88.

Data Type

Integer

AuthMechanism Property (ActiveDirectory Control)

The authentication mechanism to be used when connecting to the Active Directory server.

Syntax

activedirectorycontrol.AuthMechanism[=integer]

Possible Values

aamSimple(0), 
aamDigestMD5(1), 
aamNegotiate(2), 
aamKerberos(6)

Default Value

Remarks

This property specifies the authentication mechanism used. Possible values are:


0 (aamSimple)	Plaintext authentication
1 (aamDigestMD5)	DIGEST-MD5 authentication
2 (aamNegotiate)	NTLM/Negotiate authentication
6 (aamKerbers - default)	Kerberos authentication

Data Type

Integer

AuthToken Property (ActiveDirectory Control)

The authentication token.

Syntax

activedirectorycontrol.AuthToken

Default Value

Remarks

This property holds the authentication token.

This property will be populated after calling Authenticate. This may be used in by another entity to authenticate to the service. For instance this may be used in HTTP to authenticate to a web service.

The content of this property is a KRB_AP_REQ message. This is sometimes referred to as an "Authentication Header". It is comprised of the service ticket that was obtained from the TGS and an encrypted authenticator.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .AuthTokenB.

This property is read-only.

Data Type

Binary String

Password Property (ActiveDirectory Control)

The user's password.

Syntax

activedirectorycontrol.Password[=string]

Default Value

Remarks

This property specifies the user's password. This must be set before calling Authenticate.

Data Type

String

SPN Property (ActiveDirectory Control)

The Service Principal Name (SPN).

Syntax

activedirectorycontrol.SPN[=string]

Default Value

Remarks

This property specifies the Service Principal Name (SPN). This must be set before calling Authenticate.

Data Type

String

Timeout Property (ActiveDirectory Control)

The timeout for the control.

Syntax

activedirectorycontrol.Timeout[=integer]

Default Value

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 control will wait for the operation to complete before returning control.

The control 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 control fails with an error.

Note: By default, all timeouts are inactivity timeouts, that is, 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

User Property (ActiveDirectory Control)

The name and domain of the user to authenticate.

Syntax

activedirectorycontrol.User[=string]

Default Value

Remarks

This property specifies the name and realm/domain of the user. The value specified must be in one of the following formats:

user@domain
domain/user

Data Type

String

Authenticate Method (ActiveDirectory Control)

Authenticates the user.

Syntax

activedirectorycontrol.Authenticate

Remarks

This method authenticates the User.

Authentication

SPN (required)
User (required)
Password (required)
ADHost (required)

A typical sequence of messages would be:

KRB_AS_REQ -> KDC
KRB_AS_REP <- KDC
KRB_TGS_REQ -> KDC
KRB_TGS_REP <- KDC
AuthToken is populated with the constructed KRB_AP_REP message.

Communication with the ADHost can be seen through the PITrail event.

ChangePassword Method (ActiveDirectory Control)

Changes the password for the specified user.

Syntax

activedirectorycontrol.ChangePassword user, oldPassword, newPassword

Remarks

This method changes the password for the specified user.

The User parameter is the name of the user for which the password will be changed. OldPassword specifies the current password and NewPassword specifies the new password.

Note: This operation can only be performed over the SSL Port. Set ADPort to the SSL port of the server (typically 636) before calling this method.

Note: If the user is an administrator the old password is not required.

Config Method (ActiveDirectory Control)

Sets or retrieves a configuration setting.

Syntax

activedirectorycontrol.Config ConfigurationString

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, 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 (ActiveDirectory Control)

This method processes events from the internal message queue.

Syntax

activedirectorycontrol.DoEvents

Remarks

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

Interrupt Method (ActiveDirectory Control)

This method interrupts the current method.

Syntax

activedirectorycontrol.Interrupt

Remarks

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

ListComputers Method (ActiveDirectory Control)

Lists all computers in the directory.

Syntax

activedirectorycontrol.ListComputers

Remarks

This method lists all computers in the directory. The ComputerList event will be fired once for each computer returned.

ListGroupMembers Method (ActiveDirectory Control)

List all members of a group.

Syntax

activedirectorycontrol.ListGroupMembers group

Remarks

This method lists all members of the specified group. The UserList event will be fired once for each member returned.

ListGroups Method (ActiveDirectory Control)

List all groups in the directory.

Syntax

activedirectorycontrol.ListGroups

Remarks

This method lists all groups in the directory. The GroupList event will be fired once for each group returned.

ListUserGroups Method (ActiveDirectory Control)

Lists all groups a user is a part of.

Syntax

activedirectorycontrol.ListUserGroups user

Remarks

This method lists all groups that the user specified by user is a part of. The GroupList event will fire once for each group the user is a part of.

Reset Method (ActiveDirectory Control)

Resets the control properties to their default values.

Syntax

activedirectorycontrol.Reset

Remarks

This method resets the properties to their default values.

ComputerList Event (ActiveDirectory Control)

Fired for each computer entry returned.

Syntax

Sub activedirectorycontrol_ComputerList(name As String, operatingSystem As String, lastLogon As String, logonCount As Integer, dn As String)

Remarks

This event is fired once for each computer returned when the ListComputers method is called.

Error Event (ActiveDirectory Control)

Fired when information is available about errors during data delivery.

Syntax

Sub activedirectorycontrol_Error(ErrorCode As Integer, Description As String)

Remarks

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

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

GroupList Event (ActiveDirectory Control)

Fired for each group entry returned.

Syntax

Sub activedirectorycontrol_GroupList(name As String, description As String, dn As String)

Remarks

This event is fired once for each group entry returned when either of the ListGroups or ListUserGroups methods are called.

Log Event (ActiveDirectory Control)

Fires once for each log message.

Syntax

Sub activedirectorycontrol_Log(LogLevel As Integer, Message As String, LogType As String)

Remarks

This event fires once for each log message generated by the control. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of the Message. Possible values are:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.

The value 2 (Verbose) logs additional information about the request and response.

The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).

LogType identifies the type of log entry. Possible values are:

Info
Verbose
Debug

PITrail Event (ActiveDirectory Control)

Traces the messages sent to the server, and the respective replies.

Syntax

Sub activedirectorycontrol_PITrail(Direction As Integer, Message As String)

Remarks

The PITrail event is useful for debugging purposes. It shows all the interaction between the client and the server. To include the raw packets set LogKerberosPackets to True.

The Message parameter contains the full text of the message. The Direction parameter shows the originator of the message:


0 (Client)	The Message originates from the client.
1 (Server)	The Message originates from the server.
2 (Info)	The Message is an informative message originating from the client software (the control code).

UserList Event (ActiveDirectory Control)

Fired once for each user entry returned.

Syntax

Sub activedirectorycontrol_UserList(name As String, description As String, lastLogon As String, memberOf As String, dn As String)

Remarks

This event is fired once for each user entry returned when the ListGroupMembers method is called.

Config Settings (ActiveDirectory Control)

The control 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 control, access to these internal properties is provided through the Config method.

ActiveDirectory Config Settings

CredentialsCacheFile: The credentials cache file.

This setting specifies the path to a credentials cache file. If specified, the credentials are read from this file. For example: C:\\krbccdir\\tkt.txt

Alternatively, this setting can specify the path to a directory containing a collection of credential cache files. When a directory is specified, the path must be prefixed with DIR:. For example: DIR:C:\\krbccdir\\

EncodeAuthToken: Whether to Base64 encode the AuthToken.

This setting specifies whether AuthToken is Base64 encoded after calling Authenticate. The default value is False.

EncryptionTypes: The encryption types used during authentication.

This setting specifies a comma separated list of encryption types used during authentication. Possible values are:

rc4-hmac
des-cbc-md5
aes128-cts-hmac-sha1-96

The default value is "des-cbc-md5,rc4-hmac,aes128-cts-hmac-sha1-96".

Krb5Config: The clients Kerberos configuration file.

This setting specifies the path to the clients Kerberos configuration file (e.g., C:\path\to\krb5.conf).

When specified, the control will parse the default realm present in the configuration file (under the "libdefaults" section), along with all listed realms and KDCs (under the "realms" section). The default realm will be used during authentication, unless a domain/realm is specified in the User property. Note that in this case, the User property may be set to only a username to allow the control to use the appropriate default realm.

Assuming a default realm is found, the primary KDC associated with this realm will be used during authentication, assuming KDCHost is not specified. Additional KDCs will be used only if authentication with the primary KDC fails. Note if no KDCs are specified for a realm and "dns_lookup_kdc" is set to true in the configuration file, the control will perform a DNS query in an attempt to resolve the KDCs host name and port.

All additional realms will be stored as intermediate realms in the case cross-realm authentication is needed.

LogKerberosPackets: Whether to include the raw Kerberos packets in PITrail output.

This settings specifies whether to include the raw Kerberos packet in the Message parameter of the PITrail event. When True the Kerberos packet will be encoded and present in the Message parameter. The default value is False. This may be enabled for troubleshooting purposes.

LogLevel: The level of detail that is logged.

This setting controls the level of detail that is logged through the Log event. Possible values are:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.

The value 2 (Verbose) logs additional information about the request and response.

The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).

UsePlatformKerberosAPI: Whether to use the platform Kerberos API.

This setting determines if the platform's Kerberos API is used. By default the control does not rely on any platform APIs to perform Kerberos authentication. Use of the platform API may be enabled by setting this to True. The default value is False.

Note: This functionality is only available on Windows.

UseTCP: Whether TCP is used when establishing the connection.

This config specifies whether TCP is used as the transport protocol when establishing the connection. By default this config is False and UDP will be used.

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 control will use Timeout for establishing a connection and transmitting/receiving data.

FirewallAutoDetect: Tells the control whether or not to automatically detect and use firewall system settings, if available.

This configuration setting is provided for use by controls 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 controls 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 control fails with an error.

Note: This setting is provided for use by controls 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 controls that do not directly expose Firewall properties.

FirewallType: Determines the type of firewall to connect through.

Possible 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 controls 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 control fails with an error.

Note: This setting is provided for use by controls 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 control 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 multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.

If the control 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 multihomed hosts (machines with more than one IP interface).

LocalPort: The port in the local host where the control binds.

This configuration setting must be set before a connection is attempted. It instructs the control 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 configuration setting is useful when trying to connect to services that require a trusted port on 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 set to True, the socket will send all data that are ready to send at once. When set to False, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this configuration setting is set to False.

UseIPv6: Whether to use IPv6.

When set to 0 (default), the control will use IPv4 exclusively. When set to 1, the control will use IPv6 exclusively. To instruct the control 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 as follows:


0	IPv4 only
1	IPv6 only
2	IPv6 with IPv4 fallback

Socket Config Settings

AbsoluteTimeout: Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method that 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 User Datagram Protocol (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 Transmission Control Protocol (TCP)/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. In some cases, increasing the value of the InBufferSize setting can provide significant improvements in performance.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control 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. In some cases, increasing the value of the OutBufferSize setting can provide significant improvements in performance.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control 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

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

MaskSensitiveData: 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 to mask sensitive data. The default is .

This setting only works on these controls: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to , the control will use the system security libraries by default to perform cryptographic functions where applicable.

Setting this configuration setting to tells the control to use the internal implementation instead of using the system security libraries.

This setting is set to by default on all platforms.

Trappable Errors (ActiveDirectory Control)

AD Errors

20951	Busy performing other action.
20952	Invalid username.
20953	Received error message. The error message contains the description.
20954	Message integrity check error.
20955	Unsupported encryption type.

UDP Errors

20105	UDP is already Active.
20107	You cannot change the LocalPort while the control is Active.
20108	You cannot change the LocalHost at this time. A connection is in progress.
20110	The control must be Active for this operation.
20113	You cannot change MaxPacketSize while the control is Active.
20114	You cannot change ShareLocalPort option while the control is Active.
20115	You cannot change RemoteHost when UseConnection is set and the control Active.
20116	You cannot change RemotePort when UseConnection is set and the control is Active.
20117	RemotePort cannot be zero when UseConnection is set. Please specify a valid service port number.
20118	You cannot change UseConnection while the control is Active.
20119	Message cannot be longer than MaxPacketSize.
20120	Message too short.
20435	Unable to convert string to selected CodePage.

TCP/IP Errors

25005	[10004] Interrupted system call.
25010	[10009] Bad file number.
25014	[10013] Access denied.
25015	[10014] Bad address.
25023	[10022] Invalid argument.
25025	[10024] Too many open files.
25036	[10035] Operation would block.
25037	[10036] Operation now in progress.
25038	[10037] Operation already in progress.
25039	[10038] Socket operation on nonsocket.
25040	[10039] Destination address required.
25041	[10040] Message is too long.
25042	[10041] Protocol wrong type for socket.
25043	[10042] Bad protocol option.
25044	[10043] Protocol is not supported.
25045	[10044] Socket type is not supported.
25046	[10045] Operation is not supported on socket.
25047	[10046] Protocol family is not supported.
25048	[10047] Address family is not supported by protocol family.
25049	[10048] Address already in use.
25050	[10049] Cannot assign requested address.
25051	[10050] Network is down.
25052	[10051] Network is unreachable.
25053	[10052] Net dropped connection or reset.
25054	[10053] Software caused connection abort.
25055	[10054] Connection reset by peer.
25056	[10055] No buffer space available.
25057	[10056] Socket is already connected.
25058	[10057] Socket is not connected.
25059	[10058] Cannot send after socket shutdown.
25060	[10059] Too many references, cannot splice.
25061	[10060] Connection timed out.
25062	[10061] Connection refused.
25063	[10062] Too many levels of symbolic links.
25064	[10063] File name is too long.
25065	[10064] Host is down.
25066	[10065] No route to host.
25067	[10066] Directory is not empty
25068	[10067] Too many processes.
25069	[10068] Too many users.
25070	[10069] Disc Quota Exceeded.
25071	[10070] Stale NFS file handle.
25072	[10071] Too many levels of remote in path.
25092	[10091] Network subsystem is unavailable.
25093	[10092] WINSOCK DLL Version out of range.
25094	[10093] Winsock is not loaded yet.
26002	[11001] Host not found.
26003	[11002] Nonauthoritative 'Host not found' (try again or check DNS setup).
26004	[11003] Nonrecoverable errors: FORMERR, REFUSED, NOTIMP.
26005	[11004] Valid name, no data record (check DNS setup).