RAM Speed according to Memtest86+

Here are some speed results for RAM according to Memtest86+ on some machines that I have run. Note that the reported speed varies between runs by a few percent. Thinkpad 600e PentiumII 400Mhz PC-66 RAM (2 DIMMs) 174MB/s Compaq P3-866MHz PC133 RAM (3 DIMMs, 2*128 + 256) 190MB/s Compaq Athlon 1GHz PC133 RAM (3 DIMMs) […]



ETBE Mon is my fork of the traditional Unix system and network monitoring system “Mon” by Jim Trocki. My aim with this fork is to take the best patches available for the existing Mon codebase and the best “contrib” monitoring scripts and include them in one package. I also aim to write all scripts necessary […]



This version starts the re-write of Bonnie++! I will make it totally threaded (the new code does not use fork()). It will also support testing with a specified number of threads doing the same test, this will allow you to reallythrash those RAID arrays! The ports to OS/2 and NT are cancelled! bonnie++-1.97.3.tgz – man […]


DKIM and Mailing Lists

The Problem DKIM is a standard for digitally signing mail to prove it’s authenticity and prove that it was not modified. In an ideal situation it can be used to reject corrupted or forged messages. DMARC and ADSP are standards for indicating that mail from a domain should be signed. This prevents hostile parties from […]



Here are the details of some Mon tests I run: DNS The following tests the local DNS cache. I didn’t use example.com 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 […]