You might already know about extensions if you are a Gmail user - but it's in fact not a special Google feature! Using a unique email address on every website you set up an account on makes filtering a lot easier - even more so in combination with Sieve server side fitering.
Trying to get ntop to work. Fails because ntop is bundled with nprobe which is not available for free anymore. Alternatives are hard to find. Going deeper finally brings me to softflowd and makes me spend the day implementing a NetFlow v9 parser in Python
One year passed since I last signed a key! And since I ran in some trouble because I forgot how to use the CLI of gpg2, this post serves as a brain dump for future usage: configuration file, expiration dates and signing options.