Here are the details of some Mon tests I run:


The following tests the local DNS cache. I didn’t use in my real tests, I used the domain of a multi-national corporation that has a very short DNS timeout that seems related to their use of the Akamai CDN. I won’t tell people […]

Debian Repositories

Here is a list of the Debian repositories I maintain. I include sources.list lines both directly and via a TOR Hidden Service (see Petter’s blog post about TOR and APT [1]).

All my repositories support i386 and amd64 architectures. Not all packages will be supported in both architectures. In the past I’ve had to rebuild […]

Free Educational Android Apps

This post has a list of educational apps for Android phones and tablets that I have discovered. I can’t claim that each app is the best for it’s purpose, but I’ve tested out each one and found it to be useful.

I am separating the lists into apps that have full functionality when offline and […]

Intellectual Android Games

Here is a list of Android games that involve thinking:

Chess Unblock Me – the classic game of moving blocks to slide a block out Go – Japanese board game Minecraft Pocket Edition Cut the Rope games The Sims Freeplay Monument Valley Bad Piggies Engineer: Cars Stone Flips (like Lights Out) The Room […]

SE Linux Play Machine

Free root access on a SE Linux machine!

To access my Debian play machine ssh to zp7zwyd5t3aju57m.onion as root, the password is “SELINUX“. I give no-one permission to distribute this password. If you want to share information on this machine you must give the URL to this web site. In some jurisdictions it would be […]

Worthless Questions at Lectures

I’ve previously blogged about the productive length of questions at lectures [1]. But it seems to me that worthless questions can be recognised before the person asking even gets properly started. Here is a list of ways of recognising them:

Appeal to authority. If someone tells you about their job or other qualifications before asking […]

ASD Self-Diagnosis Tests

Here are some online psychological tests that can be used as part of an Autism Spectrum Disorder (ASD) self-diagnosis.

Simon Baron-Cohen is well known for his research into Autism, some of it is quite controversial (particularly the “Extreme Male Brain” theory which is widely rejected in the Autism community). There are some interesting tests based […]

Some Suggestions for Parents of Aspies

I’ve had a couple of parents ask me for advice about children with Asperger Syndrome (AS), in one case a child who was formally diagnosed and in another case a child who is suspected of being an Aspie but who hasn’t been assessed. I don’t claim to be an expert on these things, but based […]


Memlockd is a daemon that locks files into memory. Then if a machine starts paging heavily the chance of being able to login successfully is significantly increased. The default configuration will lock all the files needed for login to a Debian GNU/Linux system via the console or via ssh.

memlockd_1.2.tar.gz – better systemd support, and […]

Free Books

Here are some free books that I have downloaded and read:

Cory Doctorow’s book Eastern Standard Tribe was the first novel I read on my computer. His other novels are linked here. The novelette A Colder War by Charles Stross is really good. The novel Accelerando by Charles Stross is very well written and has […]