Software vs Hardware RAIDSoftware vs Hardware RAID
Should you use software or hardware RAID? Many people claim that Hardware RAID is needed for performance (which can be true) but then claim that it’s because of the CPU[...]
Author: etbe
More About Living in HotelsMore About Living in Hotels
In the past I have spent about 18 months living in hotels with a couple of months of breaks in between. I have previously written about it in terms of[...]
Restorecon Equivalent for Unix PermissionsRestorecon Equivalent for Unix Permissions
SE Linux has a utility named restorecon to set (or reset) the security context. This is useful for many reasons, corrupted filesystems, users removing files or changing the context in[...]
SecureCon LectureSecureCon Lecture
On Thursday at Secure Con [1] I gave a lecture about SE Linux that went according to plan, and they gave me a nice bottle of Penfolds Shiraz afterwards (thanks[...]
SecureCon TutorialSecureCon Tutorial
My SecureCon tutorial went quite badly today. After having network problems and having both the Xen servers crash for no apparent reason I had to give up and give an[...]
Xen for TrainingXen for Training
I’m setting up a training environment based on Xen. The configuration will probably be of use to some people so I’m including it below the fold. Please let me know[...]
Squid and SE LinuxSquid and SE Linux
Is Squid not returning some data you need on a SE Linux system? The default configuration of the SE Linux policy for Squid only allows it to connect to a[...]
Increasing Efficiency through Less WorkIncreasing Efficiency through Less Work
I have just read an interesting article titled Why Crunch Mode Doesn’t Work [1] which documents the research on efficiency vs amount of time spent working (and by inference amount[...]
Load AverageLoad Average
Other Unix systems apparently calculate the load average differently to Linux. According to the Wikipedia page about Load(computing) [1] most Unix systems calculate it based on the average number of[...]
HalloweenHalloween
Yesterday I received an unsigned notice in the mail from some residents of an area comprising my street and an adjacent one. They advised me that their children were going[...]