Passwords Used by Daemons

There’s a lot of advice about how to create and manage user passwords, and some of it is even good. But there doesn’t seem to be much advice about passwords for daemons, scripts, and other system processes. I’m writing this post with some rough ideas about the topic, please let me know if you have […]


Cooperative Learning

This post is about my latest idea for learning about computers. I posted it to my local LUG mailing list and received no responses. But I still think it’s a great idea and that I just need to find the right way to launch it. I think it would be good to try cooperative learning […]


BTRFS and SE Linux

I’ve had problems with systems running SE Linux on BTRFS losing the XATTRs used for storing the SE Linux file labels after a power outage. Here is the link to the patch that fixes this [1]. Thanks to Hans van Kranenburg and Holger Hoffst√§tte for the information about this patch which was already included in […]


Racism in the Office

Today I was at an office party and the conversation turned to race, specifically the incidence of unarmed Afro-American men and boys who are shot by police. Apparently the idea that white people (even in other countries) might treat non-white people badly offends some people, so we had a man try to explain that Afro-Americans […]


WordPress Multisite on Debian

WordPress (a common CMS for blogs) is designed to be copied to a directory that Apache can serve and run by a user with no particular privileges while managing installation of it’s own updates and plugins. Debian is designed around the idea of the package management system controlling everything on behalf of a sysadmin. When […]


Compromised Guest Account

Some of the workstations I run are sometimes used by multiple people. Having multiple people share an account is bad for security so having a guest account for guest access is convenient. If a system doesn’t allow logins over the Internet then a strong password is not needed for the guest account. If such a […]


Dell PowerEdge T30

I just did a Debian install on a Dell PowerEdge T30 for a client. The Dell web site is a bit broken at the moment, it didn’t list the price of that server or give useful specs when I was ordering it. I was under the impression that the server was limited to 8G of […]


Thinkpad X1 Carbon

I just bought a Thinkpad X1 Carbon to replace my Thinkpad X301 [1]. It cost me $289 with free shipping from an eBay merchant which is a great deal, a new battery for the Thinkpad X301 would have cost about $100. It seems that laptops aren’t depreciating in value as much as they used to. […]


More About the Thinkpad X301

Last month I blogged about the Thinkpad X301 I got from a rubbish pile [1]. One thing I didn’t realise when writing that post is that the X301 doesn’t have the keyboard light that the T420 has. With the T420 I could press the bottom left (FN) and top right (PgUp from memory) keys on […]


Designing Shared Cars

Almost 10 years ago I blogged about car sharing companies in Melbourne [1]. Since that time the use of such services appears to have slowly grown (judging by the slow growth in the reserved parking spots for such cars). This isn’t the sudden growth that public transport advocates and the operators of those companies hoped […]