Introduction to the Apache Web Server - ApacheCon

16.9.2 rotatelogs
CustomLog "|/usr/local/apache/bin/rotatelogs /some/where 86400" common
Implemented as a piped log file, which rotates your logs automatically every day.
The /some/where is where you want it to put the old log files each day. Specifically, it will create files called
/some/shere.XXXXXXX, where XXXXXXX is the time in Unix time - that is, the number of seconds since Jan
1, 1970. This number can be converted back into human-readable time by the command:
perl -le ’print scalar localtime($time);’
where $time is the number appended to the end of the file name.
The 86400 is the number of seconds in a day, and means that the log rotation will happen once a day. You
may want to set this at 300 seconds (ever 5 minutes) to see what this does.
NEED TO ADD 2.0 STUFF HERE
16.9.3 logresolve
cp ../logs/access_log ./
./logresolve -s stats < access_log > resolved.log
Resolves IP addresses, generates simple statistics.
16.10 Logging for multiple virtual hosts
• Each vhost should have its own log file
• Alternately, if you have only one log file, make sure you use the extended (combined) log file format
which contains the vhost name:
"%v %h %l %u %t \"%r\" %>s %b"
Note that this is the canonical name for the vhost, not necessarily the name with which the host was
accessed. ie, could be www.apacheadmin.com rather than apacheadmin.com even if that’s what was
actually used.
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