Logs seem empty for a long time

[Wisse Jelgersma]

Yesterday I found out the logs on my Ubuntu 14.04 plesk 12.5 server have not been filling up. When I go to /var/log/ and check the maillog, syslog, mail.err etc. they are simply empty (made/changed on nov 21st 2015 with 0kb contents).

However my mysql.log, php5.log, auth.log and some others do seem to work. Could anyone help diagnose and fix this problem? Having no logs scares me.

Thanks in advance!

 

[IgorG]

Looks like something wrong with rsyslog service. Try to re-install it at least:

# sudo apt-get install --reinstall rsyslog

 

[Wisse Jelgersma]

Thanks for the help, IgorG

I tried reinstalling as you suggested, wich succeeded. Unfortunately the logs still don't work. I'd really appreciate any further help!

 

[pelo]

check your cron jobs, if all are activated - especially /etc/cron.daily/logrotate

 

[Wisse Jelgersma]

Thanks Pelo, the /etc/cron.daily/logrotate exists. Also the log files exist. but they are totally blank.