Category Archives: Uncategorized

Scaleway Centos7.2 image is vulnerable

UPDATE 2017-11-09: Torgrim Teigstad originally reported this and did some additional testing this week. It appears that all VMs spun from this image use the same hard coded root password, and this exists in the list of passwords being probed … Continue reading

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Doing consulting work

Been meaning to write this for a while. I’ve been working as an independant consultant since January. I left my position as tech lead with Varnish Software, having spent almost five years there, knowing it was time to do something … Continue reading

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Boat electronics hacking on 33c3

I’ve set up a small workshop / meetup on boat electronics hacking at 33c3 this year. 33c3 is the 33rd yearly congress for the Chaos Computer Club and collects around 5000 awesome people in a big conference centre in Hamburg. https://events.ccc.de/congress/2016/wiki/Session:Boat_instruments_hackingContinue reading

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Shutting down hostedmunin.com

Keeping this short: I’m shutting down my side project running a hosted Munin monitoring service from mid August 2016. Priorities have changed, and since I don’t run many servers these days I don’t spend the time maintaining it that such … Continue reading

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Scanning for multicast TV channels

In recent times, I’ve cut the cord and stopped watching TV from my local cable company. This gave the need to look for IPv4 multicast groups that had active talkers, so I (on occasion) could stream some live TV over … Continue reading

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Disable Spotify song change notification in Debian Linux

Recently Spotify started sending notifications to the desktop on song change. This is unnecessarily annoying and breaks my flow, so it had to go. (and since I usually just listen to the same playlists anyway, I’m very well aware what … Continue reading

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Converting a Varnish 3.0 VMOD to 4.0

So we’re getting closer to releasing the first proper 4.0 version of Varnish Cache. One of the things we need to fix is to get all the vmod writers to make sure their vmod works with the new version. Here … Continue reading

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libvmod-cookie; simpler cookie handling in Varnish VCL

I’ve written a Varnish module (VMOD) to simplify handling of HTTP cookies in Varnish VCL. In essence it does the usual stuff you’d usually do with regular expressions, but with much simpler syntax and readability. It works by parsing the … Continue reading

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Internet routing with Quagga/Linux on Free Internet eXchange Oslo (FIXO)

I run a small internet routing AS (autonomous system), mostly to keep my routing skills up to date (somewhat). AS56809 get transit from Blix Solutions AS, and it is also present on Free Internet eXchange Oslo (FIXO for short). FIXO … Continue reading

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Varnish development news (Feb 2013)

An update from git: Tab completion in varnishadm. (e6a88da) TCP_KEEPALIVE is now enabled for all connections on operating systems that supports it. This avoids a situation where Varnish would keep retrying failing slow backend request for clients that had given … Continue reading

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