Log Rotation

Features:
1. Rotation of logs based on criteria
a. size
b. age (daily, weekly, monthly)

2. Compression
3. Maintain logs for a defined period


/etc/logrotate.conf - primary (global) config file for all logs
-can be overriden by context-sensitive files. i.e. apache
run 'man logrotate'

/etc/logrotate.d - directory for logs to be rotated
-httpd - used to rotate Apache logs

/var/log/httpd/*log {
missingok
notifempty
sharedscripts
postrotate
/bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null || true
endscript
}


Task: Setup rotation rule for Cisco log
1. Create entry in: /etc/logrotate.d based on /etc/logrotate.d/syslog

2. Modified the entry to rotate based on new criteria
3. Rotated using: 'logrotate /etc/logrotate.conf'
Note: Force using: 'logrotatate -f /etc/logrotate.conf'