Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every shell ...

The whole of modern networking is built upon an unreliable medium. Routing equipment has free license to discard, corrupt, reorder, or duplicate data which it forwards. The understanding of the IP ...

OpenBSD has recently stressed to us the value of key rotation by their use of “Signify” distribution release signatures. We have realized that SSH keys should also rotate, to reduce the risk of ...