SSH

SSH is awesome! It’s useful for so many things! This page aims to document some of them, and how I use them.

Authorizing Users

To authorize someone to log in to your machine, one would typically use the $HOME/.ssh/authorized_keys file. You can find out more about this file here: https://www.ibm.com/docs/en/zos/2.4.0?topic=daemon-format-authorized-keys-file

SSH Tunnels

There are many ways to use tunnels. This blog post describes it very well: https://iximiuz.com/en/posts/ssh-tunnels/.

Mosh

Mosh is a great application to use with SSH to make your SSH sessions more stable.

UTF-8 locale needed

The locale requested by LANG=en_US.UTF-8 isn't available here.
Running `locale-gen en_US.UTF-8' may be necessary.

mosh-server needs a UTF-8 native locale to run.

Unfortunately, the local environment (LANG=C) specifies
the character set "US-ASCII",

The client-supplied environment (LANG=en_US.UTF-8) specifies
the character set "US-ASCII".

If you get this error, you likely need to run this on the server you are trying to access:

sudo apt update && sudo apt install locales
sudo locale-gen en_US.UTF-8
# If that doesn't work, then run this:
# When running this, just choose "en_US.UTF-8"
sudo dpkg-reconfigure locales

See my answer here: https://unix.stackexchange.com/a/765013/591317