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Debugging named
When named is running incorrectly, first check /var/adm/SYSLOG for any messages. For additional information, send named one of the following signals, using killall(1M) and defining SIG as INT, ABRT, USR1, or USR2:
/etc/killall -SIG named
- INT
- Dumps the current database and cache to /var/tmp/named_dump.db. This dumping should indicate whether the database was loaded correctly.
- ABRT
- Dumps statistics data into /var/tmp/named.stats. Statistics data is appended to the file.
- USR1
- Turns on debugging. Each subsequent USR1 increases the debug level. There are 10 debug levels, and each prints more detailed information. A debug level of 5 is useful for debugging lookup requests. The output goes to /var/tmp/named.run.
- USR2
- Turns off debugging completely.
- SYSLOG Messages
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- The nslookup Command
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