Novell LINUX ENTERPRISE DESKTOP 10 SP2 - DEPLOYMENT GUIDE 08-05-2008 Deployment Manual page 478

20.9.9 Debugging the CUPS Print System
Use the following generic procedure to locate problems in the CUPS print system:
1 Set LogLevel debug in /etc/cups/cupsd.conf.
2 Stop cupsd.
3 Remove /var/log/cups/error_log* to avoid having to search through
4 Start cupsd.
5 Repeat the action that led to the problem.
6 Check the messages in /var/log/cups/error_log* to identify the cause
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very large log files.
of the problem.