It has been about two years since I have visited a specific rack closet, and took pictures. Several days ago I have visited the same rack closet, and took some new pictures. You can tell time went by 😉
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This post will offer several tips and tricks for wiring cables into new rack closets. It uses pictures as a demonstration of what to do and what not to do. It is based on a job I have taken part in with several other companies, moving the server farm to a new location. This job…
I will discuss the issue of placing a Linux machine as a router, and some special cases where things might play a bit different. The most common scenario is of placing the Linux as some sort of PPP or DHCP-via-cables router. It might look like this: In this picture, the Linux machine actually recieves, via…
ISPs which enforce QoS limitations suddenly, without alerting the customer, are abusing their force. QoS limitation is not a bad thing, from the ISP’s point of view, but changing the customer deal without notifying him seems to me to be unfair. This is a recipe for a QoS workaround. Ingredients: One fast Internet connection which…
It wasn’t junk once… This stuff used to be useful, but it has been laying around for a long while now, doing nothing but collect some dust. I have ‘donated’ some stuff to someone who actually wanted it, but neither him nor me can find a use, nowadays, to a monochrome display card with an…
It’s sort of a relationship between myself and this Tyan. Same server, changing demands. This time, we’ve had to install on this server RHEL4 32bit. Net-installing RHEL4 Update 3 was impossible. See here, so we’ve installed it from CDs (didn’t have PCI-X network card handy). When booting the server, it showed us only a single…
Recently, with the release of a new 8.x version of Dell SrvAdmin tools, the Centos/RHEL5 (and XenServer, by the way) repositories disappeared. It appears that Dell will not support the RHEL5.x brands anymore. The proper solution is to install the last 7 SrvAdmin tools, as can be shown in this site. This solves the problem…
