log(book)
I'm currently behind on reviews, so don't be surprised if the recent reviews are a bit sparse.

SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys

Cover of SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys.

Well-written as usual. Teaches both implicit cultural knowledge and exciting obscure details in a structured, concise, and comprehensive way.