* The directory ''filter.d'' contains mainly regular expressions which are used to detect break-in attempts, password failures, etc. Here is an example for ''filter.d/sshd.conf'' with 3 possible regular expressions to match the lines of the logfile:
 
* The directory ''filter.d'' contains mainly regular expressions which are used to detect break-in attempts, password failures, etc. Here is an example for ''filter.d/sshd.conf'' with 3 possible regular expressions to match the lines of the logfile:
 
<pre>
 
<pre>
Exception encountered, of type "Error"