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  1. Exim, spamassassin and logrotate

    Here's some pointlessly complex systems administration stuff.

    I spent an hour or two today debugging my spam filtering setup. Most of my e-mail goes through Caltech, which does spam tagging nicely, but recently there's been a substantial increase in e-mail coming through various hosted domains. This bypasses Caltech's tagging, so …

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  2. Installing Xen on Debian

    I just got two HP ML350 servers (very nice: 8 gb RAM, 600 gb 15k disk, 2x 3.6 GHz Xeon -- yes, we over-ordered) and I spent a few hours installing Xen-enabled Debian on them.

    Xen is a very nice virtualization system that works with Linux. It lets you do …

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