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Archive of posts filed under the worksforme category.

“On the fly” IPsec VPN with iproute2

Only for emergencies.

File encryption on the command line

This list is just a reference which hopefully saves some googling. Let's make it clear that we're talking about symmetric encryption here, that is, a password (or better, a passphrase) is supplied when the file is encrypted, and the same password can be used to decrypt it. No public/private key stuff or other preparation should […]

Port mirroring with Linux bridges

Port mirroring with the most popular Linux bridge implementations.

Many ways to encrypt passwords

TMTOWTDI, even for password hashing.

Pulling out strings

Some ways to "pull out" strings from files