Entries in the ' sysadmin ' category
Continuing the thread of my earlier article on twitter’s architecture mistakes, Big Contrarian (new favorite weblog) made a post a few days ago that caught the SQL optimization report that Twitter leaked via it’s staging site, and then rapidly pulled down.
Ok, Biz Stone, you twit, you failed …
- Less Accounting — along with my man-love of Freshbooks, Less Accounting is a more accounting-ish replacement for Quickbooks. Quickbooks sucks and you should not use it.
- I need to check out the Smart package management system for OpenSuSE… it’s a replacement for Zypper. Zypper’s come a long way
…
IPSCA offers free certs to .edu; If you’re not .edu it’s still pretty cheap. Requires an intermediate cert pack for firefox, but the root cert is built into both firefox and IE.
Alexander Muse got some video of the outside of the datacenter as another hosting company’s CEO whose servers are hosted with ThePlanet headed out there and did a little journalism.
Alexander Muse seems to be convinced there was something weird that happened at ThePlanet to cause the previously mentioned outage.
Hold on, let me get my tinfoil hat…
I’m still offering the case of beer as a prize for anyone who can take pictures of the interior …
Many people have criticized Twitter’s uptime performance. For the geeks in the audience, this interview provides a good first-time-look at what they’re working with and what they plan to do to fix the problems. I’m rather shocked, actually. Brad Fitzgerald’s presentations on scaling Livejournal (pdf, 1.1MB) cover most …
I like being in Systems. We get to play with lots of really cool stuff. Unfortunately, when things with really cool stuff go wrong, they really go wrong.
I’m searching for pictures of the destruction. Three walls knocked down by a transformer going “poof” sounds like a good time. …
I forgot to mention something in yesterday’s post about configuring Postfix with Dovecot and turning on smtp authentication.
When you’re configuring Squirrelmail, you need to make sure that it does smtp authentication. It doesn’t seem that the version that comes with any way to that that *I* could easily find. …
What a mouthful. Like most other americans who live on a budget, I’m taking a “staycation” this weekend. What better thing to do than to get my mail server migrated to my new VPS? Well, first, I suppose, I should get the mail server all working on the new VPS…
In CentOS, the default Postfix package doesn’t have MySQL support built in. If you’ve got the priorities plugin installed, you’re either going to need to disable it or otherwise work around it so that you get the one from the centosplus repo. Other than that, it’s been made about as easy as it can be… just keep in mind as you’re reading this tutorial that I really loathe administering mail servers and consider it to be a quite onerous chore that’s been made even more onerous by spammers and hackers and script kiddies and what have you.
You’ll need to install: yum install gcc postfix clamav mysql-server mysql-devel spamassassin
dovecot php php-mbstring php-mysql rpm-build. There’s no RPM for Postfixadmin, but it’s available from the project’s site on Sourceforge.
And now the fun begins. This howto assumes that you have a decent level of knowledge and skill setting up services that run on Linux.
Been doing a lot of work with MySQL Replication recently. We’re exploring a solution for our needs, which are mostly HA issues. Maatkit has a bunch of scripts that make replication easier to troubleshoot or fix, or make loading large datasets easier, or … well, go read the …
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