Databases, Systems & Networks

Installation

Munin est un outil de monitoring fonctionnant par script et collectant des informations sur le systeme à interval régulier (5min par défaut), Munin affiche des graphiques concernants des informations qu’il collecte dans /proc. Les graphiques sont accessibles via apache, il faut donc également sécuriser l’accès à celui-ci. Il faut installer trois choses différentes :

• le programme munin,
• le daemon munin-node qui va monitorer les informations système,
• et apache2 qui nous permettra de visualiser les graphiques.

Lire la suite…

Here are some basic munin plugins for snort using perfmon (Enable preprocessor perfmonitor in snort.conf)
The snort.conf entry should look something like:

preprocessor perfmonitor: time 300 file /your/path/to/snort.stats pktcnt 5000

(Read the snort docs for more info on performance issues etc.)

Drop Rate:
http://download.gamelinux.org/snort/snort_drop_rate

Pattern Matching:
http://download.gamelinux.org/snort/snort_pattern_match

Traffic speed:
http://download.gamelinux.org/snort/snort_traffic

Alerts:
http://download.gamelinux.org/snort/snort_alerts

Avg KBytes/pkt:
http://download.gamelinux.org/snort/snort_bytes_pkt

Avg Pkts/sec:
http://download.gamelinux.org/snort/snort_pkts

Edit any one of them, to graph what you want from perfmon output. It should be easy!

And now I will test them myself!

Update:
Here is a picture to give you an idea on how the graphs looks:
http://download.gamelinux.org/snort/Snort-Munin-Plugins.pngsource: http://www.gamelinux.org/?p=32

source: GAMELINUX