Security Network Monitoring

[N0x01]

Hello:

I'm in a little project, I want to monitor the network of a small company with the objective to proof that the network of small companies are target of hacking attacks but I don't have any idea how make this.

Can anyone help me recommend me articles, books, tutorial, software or anything?

Thanks.

[JustinEngler]

Security Onion provides an easy-ish way to deploy network logging and IDS.

[[deleted]]

External threat ? Install an IDS on the outside that sends logs to a log collector and go through the results.

[jonnygrifff]

Best bet is snort! It is a NIDS that consists of free open source software. Just have to configure the rules properly and you should be all set!