Blog (tagged #Ubuntu)

Using SSH agent for sudo authentication on Ubuntu

Thanks to a post at I got a starting point, however a few things didn't quite work out (I had to install checkinstall as a prerequisite and edit the client machine user's ssh config) so here's the adjusted instructions (updated Feb 2015). You can chckout the project on GitHub -

Umask Values

Another post containg stuff I usually have to look for.

Rails 3 on Apache on Ubuntu 10.04

So I was investigating how to run a rails app on my VPS. I needed to use several sources to get little bit's working, so here's the combined instructions. Note that I assume you're starting with a working apache installation.

Fix Grub (Again)

So thanks to Windows going screwy again I had to fix grub on my machine. So I can find these instructions again here they are:


Thanks to the guys and girl over at Hak5 I came across Katana. This allows several live images to be booted from the same USB drive - hence reducing the number of them I have to carry around.

VPS Entropy

Entropy (ie the source of random numbers) is generated by keeping an eye on such things as mouse/keyboard use, hardware interupts. However on VPSs some of this is unavailable, so here's the process for using the bitfolk entropy service.

VPS Setup Guide

This is intended to be a very basic guide to getting a VPS up and going, it's aimed at the hobbiest who has enough linux knowledge to want to use a VPS but isn't quite sure how to go about getting it up and going. It assumes you'll be using an Ubuntu VPS from bitfolk, if this isn't the case then some of the things in this guide may be slightly off.

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