Monitoring Linux firewalls with firelogd

Monday, 10 June 2002, 12:07 PM EST

Having a firewall is important for overall security, but it's equally important to regularly monitor its logs.

Log monitoring helps you track possible access problems, provides data on the effectiveness of your rule sets, and documents hack attempts.

Monitoring such activity provides an excellent means to check out what's hitting your server and fix problems before they get out of hand. However, firewall logs tend to contain verbose network information in as compact a message as possible, which can be rather tedious to sift through.

This is where firelogd comes in handy. The firelogd program monitors Linux firewall logs and e-mails summarised alerts to an administratorís e-mail address.

In this article, I'll explain how to set it up and use this open source daemon.

[ Read more ]




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