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.

VMware Player - Taking ownership of this virtual machine failed

After Windows 8.1 had performed an unscheduled reboot, I was greeted with the following error message when trying to start up a virtual machine in VMware Player:

This virtual machine appears to be in use.
If this virtual machine is not in use, press the “Take Ownership” button to obtain ownership of it. Otherwise, press the “Cancel” button to avoid damaging it.

The OTRS Group axes the Windows installer

With the release of OTRS Help Desk 4, it seems that running OTRS on a native Windows environment for all intents and purposes is no longer viable. By killing off the Windows installer and recommending migration into the OTRS appliance, the OTRS Group seems to be subtly hinting that OTRS on Windows is dead in the water.

Outlook.com is silently discarding email messages

A while back I did some consulting work for a small ISP who had received complaints from a few customers that believed they could not use the ISP’s SMTP server to send email to outlook.com or hotmail.com accounts. These customers claimed they never got any bounce message (Non-Delivery Report)  in return, so they firmly believed the problem resided with the ISP.

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.