Kerberos Control
Properties Methods Events Config Settings Errors
The Kerberos control can be used to authenticate users using Kerberos 5.0.
Syntax
Kerberos
Remarks
The Kerberos control implements the Kerberos protocol defined in RFC 1510 and RFC 4120. The control provides a simple interface to easily authenticate users.
Authentication
When Authenticate is called the control will attempt to authenticate the user with the Key Distribution Center (KDC). The control will communicate with the KDCHost to obtain a service ticket and populate AuthToken. The following properties are required when calling this method:
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 KDCHost 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.
AuthToken | The authentication token. |
KDCHost | The domain name or IP address of the Key Distribution Center (KDC). |
KDCPort | The port for the Key Distribution Center (KDC). |
KeytabFile | The Kerberos Keytab file. |
Password | The user's password. |
SPN | The Service Principal Name (SPN). |
Timeout | A timeout for the control. |
User | The name and domain of the user to authenticate. |
UseTCP | Whether TCP is used when establishing the connection. |
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. |
Config | Sets or retrieves a configuration setting. |
DoEvents | Processes events from the internal message queue. |
Interrupt | Interrupt the current method. |
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.
Error | Information about errors during data delivery. |
Log | Fires once for each log message. |
PITrail | Traces the messages sent to the server, and the respective replies. |
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. |
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. |
CaptureIPPacketInfo | Used to capture the packet information. |
DelayHostResolution | Whether the hostname is resolved when RemoteHost is set. |
DestinationAddress | Used to get the destination address from the packet information. |
DontFragment | Used to set the Don't Fragment flag of outgoing packets. |
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. |
MaxPacketSize | The maximum length of the packets that can be received. |
QOSDSCPValue | Used to specify an arbitrary QOS/DSCP setting (optional). |
QOSTrafficType | Used to specify QOS/DSCP settings (optional). |
ShareLocalPort | If set to True, allows more than one instance of the control to be active on the same local port. |
UseConnection | Determines whether to use a connected socket. |
UseIPv6 | Whether or not 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. |
MaskSensitive | Whether sensitive data is masked in log messages. |
UseInternalSecurityAPI | Tells the control whether or not to use the system security libraries or an internal implementation. |
AuthToken Property (Kerberos Control)
The authentication token.
Syntax
kerberoscontrol.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
KDCHost Property (Kerberos Control)
The domain name or IP address of the Key Distribution Center (KDC).
Syntax
kerberoscontrol.KDCHost[=string]
Default Value
""
Remarks
This property specifies the IP address (IP number in dotted internet format) or Domain Name of the Key Distribution Center (KDC).
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
KDCPort Property (Kerberos Control)
The port for the Key Distribution Center (KDC).
Syntax
kerberoscontrol.KDCPort[=integer]
Default Value
88
Remarks
This property specifies the port for the Key Distribution Center (KDC). The default value is 88.
Data Type
Integer
KeytabFile Property (Kerberos Control)
The Kerberos Keytab file.
Syntax
kerberoscontrol.KeytabFile[=string]
Default Value
""
Remarks
This property specifies the path to a Kerberos Keytab file. If specified, the credentials are read from this file.
Data Type
String
Password Property (Kerberos Control)
The user's password.
Syntax
kerberoscontrol.Password[=string]
Default Value
""
Remarks
This property specifies the user's password. This must be set before calling Authenticate.
Data Type
String
SPN Property (Kerberos Control)
The Service Principal Name (SPN).
Syntax
kerberoscontrol.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 (Kerberos Control)
A timeout for the control.
Syntax
kerberoscontrol.Timeout[=integer]
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 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.
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
User Property (Kerberos Control)
The name and domain of the user to authenticate.
Syntax
kerberoscontrol.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
UseTCP Property (Kerberos Control)
Whether TCP is used when establishing the connection.
Syntax
kerberoscontrol.UseTCP[=boolean]
Default Value
False
Remarks
This property specifies whether TCP is used as the transport protocol when establishing the connection. By default this property is False and UDP will be used.
Data Type
Boolean
Authenticate Method (Kerberos Control)
Authenticates the user.
Syntax
kerberoscontrol.Authenticate
Remarks
This method authenticates the User.
Authentication
When Authenticate is called the control will attempt to authenticate the user with the Key Distribution Center (KDC). The control will communicate with the KDCHost to obtain a service ticket and populate AuthToken. The following properties are required when calling this method:
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 KDCHost can be seen through the PITrail event.
Config Method (Kerberos Control)
Sets or retrieves a configuration setting.
Syntax
kerberoscontrol.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 (Kerberos Control)
Processes events from the internal message queue.
Syntax
kerberoscontrol.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 (Kerberos Control)
Interrupt the current method.
Syntax
kerberoscontrol.Interrupt
Remarks
If there is no method in progress, Interrupt simply returns, doing nothing.
Reset Method (Kerberos Control)
Resets the control properties to their default values.
Syntax
kerberoscontrol.Reset
Remarks
This method resets the properties to their default values.
Error Event (Kerberos Control)
Information about errors during data delivery.
Syntax
Sub kerberoscontrol_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.
Log Event (Kerberos Control)
Fires once for each log message.
Syntax
Sub kerberoscontrol_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 (Kerberos Control)
Traces the messages sent to the server, and the respective replies.
Syntax
Sub kerberoscontrol_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). |
Config Settings (Kerberos 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.KERBEROS Config Settings
- rc4-hmac
- des-cbc-md5
- aes128-cts-hmac-sha1-96
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).
Note: This functionality is only available on Windows.
UDP Config Settings
The default value for this setting is False.
Note: This setting is only available in Windows.
The default value is .
Note: This setting is only available in Windows.
In multi-homed 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 multi-homed hosts (machines with more than one IP interface).
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.
Note: This setting uses the qWAVE API is only available on Windows 7, Windows Server 2008 R2, and later.
Note: This setting uses the qWAVE API which is only available on Windows Vista and Windows Server 2008 or above.
Note: QOSTrafficType must be set before setting Active to true.
The default value for this setting is False.
The default value for this setting is False.
Socket Config Settings
Note: This option is not valid for UDP ports.
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.
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
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 |
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 |
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.
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 (Kerberos Control)
kerberos 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 Cannot change MaxPacketSize while the control is Active. | |
20114 Cannot change ShareLocalPort option while the control is Active. | |
20115 Cannot change RemoteHost when UseConnection is set and the control Active. | |
20116 Cannot change RemotePort when UseConnection is set and the control is Active. | |
20117 RemotePort can't be zero when UseConnection is set. Please specify a valid service port number. | |
20118 Cannot change UseConnection while the control is Active. | |
20119 Message can't 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 non-socket. | |
25040 [10039] Destination address required. | |
25041 [10040] Message too long. | |
25042 [10041] Protocol wrong type for socket. | |
25043 [10042] Bad protocol option. | |
25044 [10043] Protocol not supported. | |
25045 [10044] Socket type not supported. | |
25046 [10045] Operation not supported on socket. | |
25047 [10046] Protocol family not supported. | |
25048 [10047] Address family not supported by protocol family. | |
25049 [10048] Address already in use. | |
25050 [10049] Can't 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] Can't send after socket shutdown. | |
25060 [10059] Too many references, can't splice. | |
25061 [10060] Connection timed out. | |
25062 [10061] Connection refused. | |
25063 [10062] Too many levels of symbolic links. | |
25064 [10063] File name too long. | |
25065 [10064] Host is down. | |
25066 [10065] No route to host. | |
25067 [10066] Directory 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 not loaded yet. | |
26002 [11001] Host not found. | |
26003 [11002] Non-authoritative 'Host not found' (try again or check DNS setup). | |
26004 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP. | |
26005 [11004] Valid name, no data record (check DNS setup). |