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When writing a shell script you need to take some care to ensure that it won’t run amok. Extra care is needed for shell scripts that run as root, firstly because of the obvious potential for random destruction, and secondly because of the potential for interaction between accounts that can cause problems.
One possible first […]
Last night I was in the middle of checking my email when I found that clicking on a URL link wouldn’t work. It turned out that my web browser had become unavailable due to a read error on the partition for my root filesystem (the usual IDE uncorrectable error thing). My main machine is a […]
I have just filed Debian bug report #556644 against the version of openssh-server in Debian/Unstable (Squeeze). Â It has a patch that moves the code to set the SE Linux context for the child process before calling chroot. Without this a chroot environment on a SE Linux system can only work correctly if /proc and […]
I run a number of MySQL databases, the number of mysqld installations that I run is something like 8, but I may have forgotten some. With the number of servers that I run on a “do nothing except when it breaks” basis it’s difficult to remember the details. The number of actual databases that I […]
Everyone who does any significant amount of sysadmin work will break a server. Most people who have any significant experience will have broken several. Anyone who has never broken one should be treated with suspicion by other members of the sysadmin team, they probably haven’t learned the caution that most of us learn from stuffing […]
Credit Writedowns has a populist interpretation of the latest Boom-Bust cycle [1]. It’s an interesting analysis of the way the US economy is working.
Bono writes for the NY Times about Rebranding America [2]. He praises Barack Obama suggesting a different reason to believe that the peace prize is deserved and describes what he believes […]
I’ve recently been diagnosed with Asperger Syndrome (AS) [1]. Among other things this means that I am genetically predisposed to have an interest in solving technical problems and give lectures about how I solved them, but that I tend not to be a “people-person”.
AS is generally regarded as an Autism Spectrum Disorder (ASD), but […]
Update: Thanks to Sven Joachim and Andrew Pollock for informing me about /etc/init.d/mountoverflowtmp which exists to mount a tmpfs named overflow if /tmp is full at boot time. It appears that the system was not compromised. But regular reinstalls are always a good thing.
On the 24th of August this year I noticed the following […]
Anand Kumria has an ongoing dispute with Exetel, the latest is that a director of Exetel has libeled him in a blog comment [1].
Having public flame-wars with customers generally isn’t a winning move for a corporation. But doing so in the context of the blog world is a particularly bad idea. The first issue […]
I’ve just added the WordPress Minify [1] plugin to my blog. It’s purpose is to combine CSS and Javascript files and to optimise them for size and it’s based on the Minify project [2]. On my documents blog this takes the main page from 313KB uncompressed, 169KB compressed, and a total of 23 HTTP transfers […]
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