You can run a Virtual Terminal Manager (VTM) component trace with the user data field set to Telnet.
For the trace TCP/IP application (TRCTCPAPP) command, the listing of the VTM component trace shows up as a spooled file, called VTMTRACE with the user data field set to TELNET. The system places this file in the default output queue of the profile that runs the TRCTCPAPP *TELNET *OFF call. At the same time, all server job flight recorders are dumped to spooled files called QTOCTTRC with user data set to QTVnnnnnn.
Here is an example of what you see in your interactive job log when you perform a TRCTCPAPP *OFF call.
Command Entry SYSNAM03
Request level: 1
All previous commands and messages:
> trctcpapp *telnet *off
Spooled printer file 1 opened for output.
Trace data for application TELNET formatted: Spooled VTMTRACE user data 'TELNET'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017231'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017230'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017229'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017232'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017233'
Trace data for application TELNET formatted: Spooled QTOCTTRC user data 'TV017234'
More...
Type command, press Enter.
===> __________________________________________________________________________
F3=ExitF4=Prompt F9=Retrieve F10=Exclude detailed messages
F11=Display full F12=Cancel F13=Information Assistant F24=More keys
Here is an example of what you see in your default output queue.
Work with All Spooled Files
Type options, press Enter.
1=Send 2=Change 3=Hold 4=Delete 5=Display 6=Release 7=Messages
8=Attributes 9=Work with printing status
Device or Total
Opt File User Queue User Data Sts Pages Page
VTMTRACE JEFF JEFFSOUTQ TELNET HLD 46 1
QTOCTTRC JEFF JEFFSOUTQ TV017231 HLD 4 1
QTOCTTRC JEFF JEFFSOUTQ TV017231 HLD 2 1
QTOCTTRC JEFF JEFFSOUTQ TV017231 HLD 2 1
QTOCTTRC JEFF JEFFSOUTQ TV017231 HLD 2 1
QTOCTTRC JEFF JEFFSOUTQ TV017231 HLD 2 1
Parameters for options 1, 2, 3 or command
===> __________________________________________________________________________
F3=Exit F10=View 4 F11=View 2 F12=Cancel F22=Printers F24=More keys
Only one file that is called VTMTRACE that is created. If SSL Telnet mode is operational on the server, you may have one or more QTOCTTRC files.
Here is an example of a QTOCTTRC file. This spooled file is a Telnet server job (QTVTELNET) as opposed to a QTVDEVICE job.
Display Spooled File
File . . . . . : TV017231 Page/Line 1/6
Control . . . . . Columns 1 - 78
Find . . . . . .
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
5769TC1 V4R4M0 990521 TRCTCPAPP Output SysName Date-12/11/98 Time-14:08:32 Page-
TRCTCPAPP Attributes
Application.................: Telnet Server
Buffer size (KB)............: 0
(Default of 0 means 16MB buffer)
Trace full action...........: *WRAP
Job id......................: 017231/QTCP /QTVTELNET
Start date/time.............: Fri Dec 11 13:50:33 1998
End date/time...............: Fri Dec 11 14:08:34 1998
Trace buffer wrapped........: No
Telnet Server Attributes
AutoStart server............: 'Y'
Number servers..............: 2
Session keep alive timeout..: 0
Default NVT type............: >*VT100<
Outgoing EBCDIC/ASCII table.: >*CCSID <
Incoming ASCII/EBCDIC table.: >*CCSID <
Coded character set id......: 84542
Attributes version id.......: >V4R4M0 <
Trace_common buffer structure:
80000000 00000000 161A8753 14001074 |..........g.....| Byte 16
80000000 00000000 161A8753 14FFFFE4 |..........g....U| Byte 48
80000000 00000000 161A8753 14005820 |..........g.....| Byte 80
00FFF000 00000084 F0F1F7F2 F3F1D8E3 |..0....d017231QT| Byte 112
C3D74040 40404040 D8E3E5E3 C5D3D5C5 |CP QTVTELNE| Byte 144
E340C699 8940C485 8340F1F1 40F1F37A |T Fri Dec 11 13:| Byte 176
F5F07AF3 F340F1F9 F9F8D8E3 E5F0F1F7 |50:33 1998QTV017| Byte 208
F2F3F140 |231 | Byte 228
Flight Records:
qtvtelnet: Job: QTVTELNET/QTCP/017231
(C) Copyright IBM Corporation, 1999
Licensed Material - Program Property of IBM.
Refer to Copyright Instructions Form No. G120-2083
ProdId: 5769-SS1 Rel: V4R4M0 Vers: V4R4M0 PTR: P3684767
qtvtelnet: Program QTVTELNET dated 04 December 1998 running
qtvtelnet: Source file: qtvtelnet.plC
qtvtelnet: Last modified: Wed Dec 9 11:57:40 1998
qtvtelnet: Last compiled at 12:00:10 on Dec 9 1998
qtvtelnet: Arguments passed: 1
qtvtelnet: Time Started: Fri Dec 11 13:50:34 1998
qtvtelnet: sigaction() for SIGUSR1 is EndClientSession()
qtvtelnet: Set Telnet Server job identity for OpNav
qtvtelnet: Need to setup SSL_Init_Application()
qtvtelnet: SSL_Init_Application() successful
qtvtelnet: Find Telnet Server control block
qtvtelnet: Lock Telnet Server control block
qtvtelnet: Open driver to stream
qtvtelnet: First Telnet Server Job...
F3=Exit F12=Cancel F19=Left F20=Right F24=More keys
Here is an example of another QTOCTTRC file. This is a device manager spooled file, as opposed to the QTVTELNET server job.
Display Spooled File
File . . . . . : TV017230 Page/Line 1/6
Control . . . . . Columns 1 - 78
Find . . . . . .
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
TRCTCPAPP Attributes
Application.................: Telnet Server
Buffer size (KB)............: 0
(Default of 0 means 16MB buffer)
Trace full action...........: *WRAP
Job id......................: 017230/QTCP /QTVDEVICE
Start date/time.............: Fri Dec 11 13:50:33 1998
End date/time...............: Fri Dec 11 14:08:39 1998
Trace buffer wrapped........: No
Telnet Server Attributes
AutoStart server............: Y
Number servers..............: 2
Session keep alive timeout..: 0
Default NVT type............: >*VT100<
Outgoing EBCDIC/ASCII table.: >*CCSID <
5769TC1 V4R4M0 990521 TRCTCPAPP Output SysName Date-12/11/98 Time-14:08:32 Page-
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7...
Incoming ASCII/EBCDIC table.: >*CCSID <
Coded character set id......: 84542
Attributes version id.......: >V4R4M0 <
Trace_common buffer structure:
80000000 00000000 3DA86C25 5F001074 |.........y...| Byte 16
80000000 00000000 3DA86C25 5FFFFFE4 |.........y..U| Byte 48
80000000 00000000 3DA86C25 5F002F64 |.........y...| Byte 80
00FFF000 00000084 F0F1F7F2 F3F0D8E3 |..0....d017230QT| Byte 112
C3D74040 40404040 D8E3E5C4 C5E5C9C3 |CP QTVDEVIC| Byte 144
C540C699 8940C485 8340F1F1 40F1F37A |E Fri Dec 11 13:| Byte 176
F5F07AF3 F340F1F9 F9F8D8E3 E5F0F1F7 |50:33 1998QTV017| Byte 208
F2F3F040 |230 | Byte 228
Flight Records:
qtvtncsh: >>>>> entry
(C) Copyright IBM Corporation, 1999.
Licensed Material - Program Property of IBM.
Refer to Copyright Instructions Form No. G120-2083
ProdId: 5769-SS1 Release: V4R4M0 Version: V4R4M0 PTR: P3684767
qtvtncsh: Program QTVTNCSH dated 04 December 1998 running
qtvtncsh: iActiveLogLevel: 0
qtvtncsh: Source file: qtvtncsh.c
qtvtncsh: Last modified: Wed Dec 9 11:48:33 1998
qtvtncsh: Last compiled at 11:59:42 on Dec 9 1998
qtvtncsh: SignalHandler() registered with signal()
qtvtncsh: Arguments passed: 4
qtvtncsh: argc: 4
qtvtncsh: argv[0]: >QSYS/QTVTNCSH<
qtvtncsh: argv[1]: ><
qtvtncsh: argv[2]: >1p<
qtvtncsh: argv[3]: >s<
SignalHandler: >>>>> entry
SignalHandler: Caught signal SIGSEGV
F3=Exit F12=Cancel F19=Left F20=Right F24=More keys
Related concepts
Materials needed to report Telnet problems