Archive for the 'sysadmin' Category

Checking SSL certificate expiry date and issuer: an openssl wrapper in BASH

I manage SSL certificate requests (and renewals) at work and the number of certs in use seems to be growing every year. There’s a nice cozy 3 year expiry on most of them which means to me just enough time for them to be potentially forgotten and cause a mad scurry come renewal time (or [...]

How to fix Huawei E620 USB 3G Modem in Ubuntu 9.10 Karmic Koala

I recently upgraded my laptop to Ubuntu 9.10 (Karmic Koala) and among a few other niggles (mostly related to intel video support, or lack thereof) it completely broke support for my Huawei 3G (E620) modem. Fortunately the fix is fairly straightforward: install a new kernel. I went with the latest (v2.6.32 release candidate available over [...]

Windows Mobile 5/6 Networking Profiles, Proxy and VPN setup

After the last rant on Windows Mobile networking, I’ll go over a few actual solutions to the issues I encountered: hopefully a few people may find this more helpful. Note that the following explanations, definitions of features and so on are the product of my own observation and experimentation with various WM5 and WM6 mobile [...]

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