Create custom log ubuntu

Question

I use ubuntu and would like to create a custom log for the authentication information on the server.

It is currently written in /var/log/auth.log

Would it be possible besides write it in auth.log it also save the information in a new.log?

Answer 1

On Ubuntu 16.04 which uses rsyslog as its syslog daemon. You can do the following as root:

echo 'auth,authpriv.* /var/log/new.log' >> /etc/rsyslog.d/50-default.conf
systemctl restart rsyslog