For details on these features, go to Managing host names (DNS) in the TCP/IP
topic in the AS/400 Information Center.You can access the Information Center from
the AS/400e Information Center CD-ROM, or from the following Web site:
http://www.as400.ibm.com/infocenter
Also see Operations Navigator on-line Help for more information on the features
listed above.
Problem Determination Flows
If you detect a problem when using DNS, use the following flow chart to identify the
cause after using the flow chart for general TCP/IP problems. (Figure247 on
page 431). The cause lists that follow identify potential problems.
Cause List A
1. Verify that you have the correct client/server software installed and that you
have all necessary command and integrated file system directory and file
authorities.
2. Verify the QTOBDNS job is active in the QSYSWRK subsystem. Use the
command WRKACTJOB SBS(QSYSWRK) JOB(QTOB*) to display the active
DNS jobs in the QSYSWRK subsystem. If the QTOBDNS job is not active, use
Operations Navigator to start DNS.
a. Follow the path \Network\Servers\OS400
b. Right click on DNS Server
c. Select start
Figure 282. DNS Server ProblemAnalysis
Chapter21. TCP/IP Problem Analysis 483
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