Author Archive

World IPv6 Day

World_IPV6_day June 8th, 2011

Today (June 8th) is World IPv6 Day, a day where some of the biggest network and website operators (Google, Bing, Facebook) turn on IPv6 for a full day to test drive a dual stack setup.

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Using munin to trend puppetmaster

Graph created by puppet_node April 27th, 2011

We wanted to trend our puppetmaster to give us an idea of the amount of nodes and the time it takes to compile a catalog. Searching on the web didn’t yield the results we needed, so we made our own.

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Deploying sudo rules via puppet, the Kumina way

puppet April 22nd, 2011

We wanted to give some of our customers the ability to restart some of their own services on their development environment. To be able to do this we made a puppet module.

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Monitoring DNS server synchronicity

code April 4th, 2011

We, along with some customers, have our authoritative DNS setup with 1 PowerDNS master(which is unreachable over the internet), running poweradmin, and 2 BIND9 slaves(which are ns1 and ns2). This setup works great, but there is a bug in (older versions of) PowerAdmin and one in BIND that together can cause some havoc.

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Hetzner Failover IP OCF script part III: When HTTP attacks

failover March 16th, 2011

Our OCF script for failovers at Hetzner worked flawlessly the last month. Last week, however, a problem arose we did not anticipate.

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