Here's a preview from my zine, Bite Size Networking!! If you want to see more comics like this, sign up for my saturday comics newsletter or browse more comics!
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ssh keys
An ssh key is a secret key that lets you SSH to a machine
person: hello!
ssh: That’s on my list of authorized keys! come in!
ssh-copy-id
This script installs your SSH key on a host (over SSH)
$ ssh-copy-id user@host
(puts it in .ssh/authorized-keys etc)
installing a SSH key is surprisingly finicky so this script is helpful!
port forwarding
ssh user@host.com - Nfl
3333:localhost:8888
3333 = local port 8888 = remote port
Lets you view a remote server that’s not on the internet in your browser.
just run 1 command
$ ssh user@host uname -a
runs the command uname -a & exits.
ssh-agent
remembers your SSH key passphrase so you don’t have to keep typing it
~.
mosh
ssh alternative: keeps the connection open if you disconnect + reconnect later
.ssh/config
Lets you set, per host: - Username to use. - SSH key to use - an alias!
so you can type $ ssh ALIAS instead of ssh user@very longdomain.com
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