Author Archives: Udo

google-chrome or chromium and SSL client certificates

Many of our restricted services rely on client authentication based on X.509 SSL certificates. And some of the better (say user friendly 🙂 ones’ are accessible using a web interface. So, with Firefox certificate based authentication is relatively easy to implement, yet when using google-chrome or chromium I was quite lost on how to manage Continue Reading →

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an unwanted honeypot for hackers: “y2kupdate”

Lazyness combined with too much work often causes very bad sideeffects … The following story happened due to my very own lazyness (or maybe even call it crazyness …): After setting up a Debian Lenny KVM guest on one of our servers, I had to do some tests on it before making it available to Continue Reading →

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thunderbird’s “lightning” plugin and 64bit = ignorance

For some months now I became quite use to using the “lightning” calendaring plugin for Mozilla Thunderbird in conjunction with our eGroupWare installation. Not all things were perfect, but in general things worked quite well. Now, at least for the public the lightning project had been quite silent for several months and so I was Continue Reading →

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Mandriva 2010.0 + KVM + Centos 5.x guest = troubles with the clock

We are just in the process of completely reinventing our data center and thus are rolling out a number of Mandriva 2010.0 based servers for various tasks. One of those tasks is virtualization, of course. Now, basically, there is nothing special about virtualization and Mandriva 2010.0 (maybe except this bug [1] that prevents it from Continue Reading →

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shell stuff: highlight matches within files

Sometimes one has to deal with a number of log files where you want to see all the logging lines as they occur, but also highlight certain arbitrary strings within those files. Say for example, you want to (almost) realtime monitor the following log files: /var/log/daemon.log/var/log/auth.log/var/log/secure.log The easiest way to monitor those files is to Continue Reading →

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