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Dead Links

I’ve found a reasonably good free spider for checking for dead links, www.dead-links.com. When I told it to spider my main site www.coker.com.au it worked well and informed me of several dead links that I fixed. When I told it to spider my blog it reported an error 404 and didn’t give any useful output. […]

George Monbiot’s Solution to Emissions Trading

I previously posted about Interesting Ideas from George Monbiot, one of which was to establish individual emissions trading.

Gyros Geier disagrees with this and cites the current emission trading schemes as evidence. There are several fundamental differences between George’s idea and the current implementations of emission trading.

The biggest flaw in current emission trading schemes […]

Photography and Censorship at APEC

World News Australia reports that Police forced three tourists to delete photos of a fence. Apparently the officers in question believed that such photos would be a threat to security.

It’s interesting to note that the first sentence of the World News Australia report is “Officials say police who forced three tourists to delete photos […]

Optus Password changeme

I have just given my parents a new computer, and part of the upgrade process lost their email passwords (which were stored in KDE preferences – this seems to happen every time KDE is upgraded). The only password that is not under my control is the password for their Optus account. So I had to […]

Out Of Memory Errors and Apache

I’ve been having problems with one of my Xen virtual servers crashing with kernel error messages regarding OOM conditions. One thing I had been meaning to do is to determine how to make a core dump of a Xen domain and then get data such as the process list from it. But tonight I ended […]

A New Spam Trick

One item on my todo list is to set up a bunch of email addresses on sub-domains of domains that I am responsible for (with the consent of all people involved of course) and perform various actions to get the addresses noticed by spammers and measure how effective the various anti-spam measures are. As part […]

Hot-swap Storage

I recently had to decommission an old Linux server and replace it with a new machine. When I was about to turn it off I noticed a power cable of the type used for IDE hard drives leaving the Linux server and entering an NT server that was in the same rack! It turned out […]

Carbon Geo-Sequestration

My post about Why Hydrogen Powered Cars Will Never Work has received a record number of comments. Some of them suggested that carbon geo-sequestration (storing carbon-dioxide at high pressure under-ground) is the solution to the climate change problem. The idea is that you can mix natural gas or coal gas with steam at high temperature […]

Interesting Ideas from George Monbiot

Here is a transcript of a lecture by George Monbiot about climate change and what we need to do. The latest scientific evidence suggests that we need to cut emissions to zero by 2030 to avoid significant increases in the sea level over the next century, George describes some options that will form part of […]

Is SE Linux only for Linux?

I have just been asked for advice on whether SE Linux is Linux specific, and therefore whether code related to SE Linux should always be stored with other Linux specific code instead of being in the main branch of certain free software projects.

One example of SE Linux access controls being implemented on a different […]