Storing Syslogs with MongoDB and Syslog-NG

After setting up and using the previously described solution to store syslogs in a MySQL-database, we quickly ran in some issues:

Syslog-Host with Syslog-NG and MySQL

When administrating a larger farm of servers, not only the security gain gives enough reasons to archive syslog messages at a central location: after a remote server has been compromised those logs may not be altered by the attacker.