To reset the password on an encrypted disk in Ubuntu use the disks tool

The cogs icon for the partition has a change password option

There are lots of blogs about this already - but I didn’t quite understand at first so here’s my take …

Wireshark is a large and somewhat vulnerable program - best not to run it as root (especially as you may be looking a suspicious traffic)

I need to use a VPN which was suffering packet fragmentation due to the overhead involved (actually I use a VPN to connect to a network which then has another VPN connection to a third network).

To determine the largest MTU size which didn’t lead to fragmentation I just ran variations on

Recently I’ve been reviewing security and realised I’ve been relying too much on my routers firewall - which isn’t even present if I work on an open wifi connection somewhere.

Steps so far

I needed to setup a VPN client connection on a headless system where the VPN is slow and so I want to route the minimal amount of traffic through it. I need DNS to use the VPN but only for one domain.

This is my setup using pptp and dnsmasq (tested on centOS)

One of those things that happens from time to time on a dual boot system…

Windows breaks grub, usually if I’ve reinstalled windows, this can lead to a unbootable system.

Boot from a Ubuntu (or other distro) live disk or USB stick.

If you want to create custom rpms and install then with the usual automated dependency management you’ll need your own yum repository. This is just the RPMS and metadata in the format of static xml files served by a webserver.

On a project I’m working on at the moment we have a problem, files are going missing.

We don’t know which part of the system could be trashing these files (user uploaded images in this case) and they are on a shared filesystem so there are plenty of places to point fingers.

I had a centos VM that I hadn’t used in a while, I think I cloned it from another version.

When I came to use it again I had no network andtrying to start the network I got the error message in the title.

There seem to be a few issues

I usually manage website deployment with bash scripts that run remote commands on the servers

In order that I can see what is going on and debug any errors verbose output is useful.

Running “bash -ex” causes each line to be output as it progresses and halt on any error so that you don’t miss it.

within the remote command “set -x” cause bash to echo all commands