One thing that I would like to get fixed for Lenny is the shared objects which can reduce the security of a system. Almost a year ago I blogged about the libsmpeg0 library which is listed as requiring an executable stack [1]. I submitted a two-line patch which fixes the problem while making no code […]
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The command “xm list” displays the number of seconds of CPU time used by each Xen domain. This makes it easy to compare the CPU use of the various domains if they were all started at the same time (usually system boot). But is not very helpful if they were started at different times. I […] I have just configured IPVS on a Xen server for load balancing between multiple virtual hosts. The benefit is not load balancing but management. With two virtual machines providing a service I can gracefully shut one down for maintenance and have the other take the load. When there are two machines providing a service a […] It’s widely regarded that the best practice is to set the time zone of a server to UTC if people are going to be doing sys-admin work from various countries. I’m currently running some RHEL4 servers that are set to Los Angeles time. So I have to convert the time from Melbourne time to UTC […] When installing Xen servers one issue that arises is how to assign MAC addresses. The Wikipedia page about MAC addresses [1] shows that all addresses that have the second least significant bit of the most significant byte set to 1 are “locally administered”. In practice people just use addresses starting with 02: for this purpose […] I’ve just started work on a new HP server running RHEL5 AS (needs to be AS to support more than 4 DomU’s). While I still have the Xen issues that made me give up using it on Debian [1] (the killer one being that an AMD64 Xen Dom0 would kernel panic on any serious disk […] There is an interesting article in The Age about the effect of petrol prices on the poorer people in Melbourne [1]. The article claims that people are unable to sell large old cars and buy smaller cars. To investigate that claim I did a price search on Ford Falcons and Holden Commodores on the web […] The lecture by Professor James Duane about why you should not talk to the police (in the US at least) is doing the rounds at the moment. The Google video site doesn’t work for me, so I downloaded it from youtube with the following references: part 1 [rVq6N0xAEEM] part 2 [-Z0bpj3EEHI] part 3 [44-GSZofXIE] part […] When I first packaged the SE Linux policy for Debian the only way to adjust the policy was to edit the source files and recompile. Often changes that you might desire involved changing macros so while it would have been theoretically possible to just tack a few type definitions and allow rules at the end, […] |
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