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Got Backups?
Backup your data. That’s something that’s repeated over and over and yet too many people don’t really take it to heart. If you’ve lost data in the past, I be that you’re backing up now like it’s a religion. If you’re not backing up, maybe you’ve never lost any data or maybe it’s just something…
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We’re a Team
We see lots of different problems every day as Liz noted the other day. It’s really quite varied work that we do and you can go from resetting a password one minute to setting up load balanced proxy servers the next. There’s always a fun and challenging problem right around the corner. The most important…
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libc6 vs libc6-xen problems with applications segfaulting
We recieved the following email this morning which may be a problem from time to time with other users, so i thought I would share this. Subject: Seg faults on apache mysql and a couple of other less import programs. Probably need a fresh install. Message: Hi I have a serious problem with my VPS…
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Domain Name Confusion
This is something we see time and time again. It is fair to say, unless you have had a bit of experience with it, can be a bit confusing. So here is a breakdown of the domain name components.. Registrar This is the business you pay a yearly fee to register your domain name. i.e.…
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Themed days in support
I notice that we seem to have waves of support in various ways. One day we will start our shift and be totally overloaded the entire day, so busy that we end up doing a little extra after hours (posting this blog whilst cooking dinner today!). Other days its pretty dull so we play table…
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nginx hacking using proxy
It sucks getting hacked Every now and then servers get hacked. Often because of an exploitable webapp, or because (most commonly) a weak, easily guessable password was used on a well known user account (like ‘root’ or ‘info’ or ‘test’). Once hackers gain access they often install some kind of malware. e.g. something that goes…
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David’s Handy Scripts – bandwidth usage – disk usage
I thought a useful addition to our blog might be a running series of handy scripts. Just for the sake of things (and because I couldn’t find a better title), I’m calling the series “David’s Handy Scripts”. I’ll get this show on the road with a quick script I put together to track 2 things…
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Ubuntu 9.04 bug with networking directory creation
We had a customer email in after updating to Jaunty recently. They said the following Hi guys, I upgraded my VPS a little while back to Ubuntu Jaunty (because I was several versions out of date and the apt repositories had gone away.) I never actually rebooted the machine afterwards though because it wasn’t a…
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Fixing apache file and directory permissions
I’ve seen this problem a few times, people having trouble getting the permissions right for websites. Heres a quick fix that will sort you in most cases For directories run find /path/to/domain/public_html/ -type d -print0 | xargs -0 chmod 755 Files run this one find /path/to/domain/public_html/ -type f | xargs chmod 644 Make sure you…
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Introduction to the new Linux Sysadmin
Recently we have had a few support requests come through from people who are new to Linux, and are unsure how to maintain a server at all. Package Management If your Linux distro is RedHat based (ie Centos, , then you will be using yum and RPM. RPM is for doing individual package manipulation (installing,…