Logrotate to remove logs in Linux

There is a great app in Linux called Logrotate which is used to manage logs in your Linux server. Through below steps, you are expected to save a log of space for your Xen server. Edit once, save space forever! -_-

 

Two files need to be modified according your system requirement. They are /etc/logrotate.conf and /etc/logrotate.d/syslog.

 

Step1. Edit rotate and compress value under /etc/logrtotate.conf. Below is sample of logrotate.conf file.

 

# see "man logrotate" for details

# CA-53139: rotate log files daily

daily

# CA-53139: compress old logfiles.

compress

 

# keep 20MB of logfiles

rotate 1 ----------------------------------Modify rotate value to “1”. the default value of rotate is 20.

 

# create new (empty) log files after rotating old ones

create

 

# uncomment this if you want your log files compressed

Compress------------------------------uncomment “Compress”. That means all rotated log will be compressed.

 

# RPM packages drop log rotation information into this directory

include /etc/logrotate.d

 

# no packages own wtmp -- we'll rotate them here

/var/log/wtmp {

    monthly

    minsize 1M

    create 0664 root utmp

    rotate 1

}

 

Step2. Add /var/log/xenstored-access.log before brace{. xenstored-access.log in Xen server produced a log of logs each day. Please see below content:

 

/var/log/crit.log /var/log/kern.log /var/log/daemon.log /var/log/user.log /var/log/messages /var/log/secure /var/log/maillog /var/log/spooler /var/log/boot.log /var/log/cron /var/log/xenstored-access.log {

    sharedscripts

    postrotate

        /bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null || true

        /bin/kill -HUP `cat /var/run/rsyslogd.pid 2> /dev/null` 2> /dev/null || true

    endscript

}

 

Step3. Execute immediately. Logrotate �Cvf /etc/logrotate.conf.  You would see that log files are correctly rotated in your system.