SSH

Secure Shell; kinda like an encrypted Telnet

Apr'2020 https://gravitational.com/blog/how-to-ssh-properly/

PySSH is a Python library for programmatically controlling SSH and SCP.

Jul'2015: A recently disclosed bug in OpenSSH software used to remotely access Internet-facing computers and servers allows attackers to make thousands of password guesses (BruteForce) in a short period of time, a defect that could open systems to password cracking, a security researcher has warned.

Jan'2016: The OpenSSH client code between 5.4 and 7.1 contains experimential support for resuming SSH-connections (roaming). The matching server code has never been shipped, but the client code was enabled by default and could be tricked by a malicious server into leaking client memory to the server, including private client user keys.