Tuesday, October 19 2010

Custom Actions with fail2ban

Most people are familiar with the fail2ban package available for protecting against brute-force password attacks against your servers.

Fail2ban scans log files like /var/log/pwdfail or /var/log/apache/error_log and bans IP that makes too many password failures. It updates firewall rules to reject the IP address.

What you might not have experimented with is it's ability to execute custom actions instead (or as well as) blocking the source IP in iptables.

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Wednesday, September 8 2010

Sheriff Joe is at it again!

Maricopa County was spending approx. $18 million dollars a year on stray animals, like cats and dogs. Sheriff Joe offered to take the department over, and the County Supervisors said okay.

Australian Governments could (should) learn a lot from this guy.

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Tuesday, April 6 2010

MediaWiki 404 Errors

Whenever a wiki page that doesn't exist is accessed in MediaWiki, it logs a 404 error in the Apache logs. This quickly adds up to a lot of false-positives on 404 reports for something that is normal operation for MediaWiki.

MediaWiki is doing the correct thing here -- if the page doesn't exist, then 404 should be the HTTP status code. But at the same time, as a system admin, I don't care about these particular 404 errors, so I don't want to be bothered by them in my logs.

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Tuesday, March 16 2010

CentOS Installation without VGA Console

So I've spent the last day and a half, plus around $20 worth of DVD's, trying to get the CentOS Installer to boot and install on a headless machine. Here's the end result...

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Saturday, January 30 2010

Migrating Physical Machine to Virtual Machine

This a quick step-by-step for migrating a Physical computer to a Virtual Box instance. It was written for an Arch Linux based installation, and requires no special software except for an Arch Linux installation CD / ISO image.

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Monday, January 4 2010

bind 'blackhole' option prevents *all* traffic

So, what's wrong with this named.conf file?

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Monday, November 2 2009

Adding Swatch Internet Time to Gnome

How to add an applet to your Gnome panel displaying Swatch Internet Time

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Wednesday, September 2 2009

Screw You PayPal

I know this is just adding to the ocean of PayPal can go suck a fat one pages around the internet, but I don't care. This is my experience of why I told PayPal to go forth and screw themselves.

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