This procedure is very important because Telnetautomatically configures virtual
devices. If the QLMTSECOFR value is set to 0, all devices automatically configured
by Telnetcan be used by the security officer. If you set the QLMTSECOFR value to
1, your security officer is not able to use the virtual devices created by Telnetunless
you grant object authority to the security officer for that virtual device. The automatic
configuration support can delete and re-create the virtual device. If this occurs,
authority must be granted to the security officer each time the virtual device is
created.
Step 4—3270—Working with Associated System Values
In addition to the QAUTOVRT and QLMTSECOFR, the following system values are
available for you to work with from the Configure TCP/IP Telnet(CFGTCPTELN)
menu:
vQINACTITV: Inactive job time-out
vQINACTMSGQ: Inactive job message queue
vQLMTDEVSSN: Limit device sessions
vQMAXSGNACN: Action to take for failed sign-on attempts
vQMAXSIGN: Maximum sign-on attempts allowed
vQRMTSIGN: Remote sign-on control
vQDEVRCYACN: Device I/O error action
vQDSCJOBITV: Timeinterval before disconnected jobs end
Figure 122on page 192 shows the Configure TCP/IP Telnet (CFGTCPTELN) menu.
Setting the Telnet Timemark Timeout Value:
Youshould also take into
consideration the TIMMRKTIMO parameter.
The Telnettimemark timeout (TIMMRKTIMO) parameter specifies the number of
seconds between TIMEMARK commands sent by the Telnetserver. If Telnet is
unable to send the TIMEMARK command, it closes the connection.
Step 5—3270—Creating Virtual Controllers and Devices
Youcan create virtual controllers and devices. If you create your own virtual
devices, by allowing the system to automatically select the device name, you must
be aware of the following:
vThe virtual controller must be named QPACTLnn, where nn is a decimal number 01
or greater.
vThe virtual device should be named QPADEVxxxx, where xxxx is an alphanumeric
character from 0001 to ZZZZ.
Note: Starting with Version 4 Release 2, the xxxx are no longer only numeric
characters, but also alphanumeric characters from 0001 to ZZZZ, allowing
a maximum of 1,679,615 unique names (devices).
If you want to use more than 32500 devices, which is the maximum value
for the QAUTOVRT system, you can set the QAUTOVRTsystem value to
*NOMAX to allow additional devices to be created.
vThe Telnetserver reuses available existing virtual devices that were auto-created
by selecting virtual devices of the same device type and model. When there are
no more device type and model matches, but there are still available virtual
devices, then the device type and model will be changed to match the client
190 OS/400 TCP/IPConfiguration and Reference V4R4
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