Syslog: push data / rsync

Hosts behind NAT or without fixed ip may be the reason we want them to 'push data' for our monitoring. However, letting clients 'phone back' isn't a very good idea for security or stability. Here are some workarounds.

• syslog. using remote logging but no authentication or encryption is offered. use 
• rsync. push data with script running cron job.

REF: http://lists.mathias-kettner.de/pipermail/checkmk-en/2012-June/006232.html