Entries written in May 2008

Written May 30, 2008 in apple

Does anyone know what the first layer inside the MacBook Pro’s power adapter cable (the end with the MagSafe on it) does? Is it the ground, or is there current running through it? I just noticed today that after a year of winding and rewinding it, the outer jacket has …

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Written May 30, 2008 in punditry

Is Craig around? Someone needs to tell Jim that they need to find a genius to recode their site to protect against malicious posting.

In all the areas I frequent on Craigslist — College Station, Austin, Houston, San Antonio, D/FW — the listings in the vehicles, motorcycles, and even …

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Written May 29, 2008 in meta, puppy

For those who are interested in following, Eowyn (The ‘Puppy’ in this site’s title) now has her own site. She’s expected home tomorrow after a difficult Femoral Head Osteotomy on Wednesday. Please keep her in your thoughts, and if you’re so inclined, prayers.

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Written May 29, 2008 in howto, sysadmin

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. …

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Written May 28, 2008 in punditry

Daring Fireball attempts to be pithy about Blockbuster’s new kiosks. ‘Cept — there’s now a bunch of self-service kiosks in my local Kroger. You can check your own groceries, you can buy flowers and other miscellaneous items from vending machines, you can exchange your own tank of propane, …

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Written May 27, 2008 in centos, howto, linux, mysql, sysadmin

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.

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Written May 27, 2008 in mysql, sysadmin

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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Written May 25, 2008 in webdev

This article by Jurgen Appello covers the common-sense aspects of source control management — the things that once you understand them are so straightforward that no one seems to bother to write books about them. Of course… how else are you going to learn them…?

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Written May 25, 2008 in webdev

I love talking about scaling issues. I’ve seen a lot of brown organic matter hit the rotary air oscillator when companies or websites try to scale up — twitter is one of the more interesting cases because of the small/rapid nature of their transactions, the huge joins that need to …

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