Aikido, programming, system administration, and other things I find interesting

Making an IPv6 addressing plan

By now, hopefully, you not only realize that you need IPv6, but that you need to replace any ISP that is not able to give you IPv6 connectivity with one who can. But now, you have a different problem. Your ISP probably gave you more addresses than exist on the whole IPv4 internet, just for […]

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Using rrdcached with munin on Ubuntu

When you have munin following many hosts with many variables tracked on each, you will inevitably find your munin server is overwhelmed with IO (rising iowait values, the server sometimes having excursions where it just gets overwhelmed with IO). The 1.4.7-1 version of rrdcached did NOT install cleanly on my Ubuntu 12.04 server: the package […]

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