Post Syndicated from original https://lwn.net/Articles/913971/

SSH is a
well-known mechanism for accessing remote computers in a
secure way; thanks to its use of cryptography, nobody can alter or
eavesdrop on the
communication. Unfortunately, SSH is somewhat
cumbersome when
connecting to a host for the first time; it’s also tricky for a
server administrator to provide time-limited access to the server. SSH
certificates can solve these problems.