GNU/Linux

How to reverse a shortened URL with a single command on GNU/Linux

Remember that old saying: if you don’t know the source, don’t click it? With all these new URL shortening services, that advice seems to have been thrown out the window. As a result, evildoers are embracing the technology to disguise their malware sites behind shortened URLs.

This is obviously effective as an URL like hxxps://goo.gl/3BSi65 would have a much easier time getting past your spamfilter than say something like hxxp://h4x0r.tld/inject.aspx

Slackware ARM on the Raspberry Pi 2- 38 days later

Excited by the prospect of hosting my blog on the new Raspberry Pi 2, I decided lately to wave goodbye to the local datacenter and unleash a Slackware Linux box into the wild (full story here).

Everything went (mostly) without a hitch until I wanted to get back in sync with the Slackware-current tree. After applying the available updates and issuing a reboot, the system seemed operational and nothing from the logs gave any indication of imminent failure.

BlueOnyx 5106R - Unresponsive Login Manager

BlueOnyx uses the PAM ABL module to mitigate brute force attacks. Though it’s not a good idea to rely solely on this module to protect your services, it’s definitely better than nothing. However, for some reason the database storing the failed hosts and users tends to corrupt easily on BlueOnyx systems.

WordPress xmlrpc.php - Brute Force Attacks

What was supposed to be a quiet Saturday morning quickly turned into a couple of hours trying to mitigate an increasing strain on a  WordPress based site. After getting around 800 post requests per minute to the WordPress xmlrpc.php file, resources for the site in question was getting sparse.

Arch Linux 2014 review - Livin' on the edge

I’ve not been doing any serious distro hopping since 2008 and figured it was about time to see if there is anything new under the sun. Enter Arch Linux, a highly touted and matured distribution with a development model and philosophy I can appreciate. Honestly though, writing a review of Arch is somewhat daft as each installation will depend upon your own choices and preferences.