Bash & Linux·Bash from first command to automation

SSH and remote machines

Connect securely, copy files and use keys instead of passwords.

Beginner 13 min read Lesson 9 of 300 Challenge included

What you will be able to do

Use ssh user@host to connect.
Generate keys with ssh-keygen -t ed25519.
Copy a public key with ssh-copy-id.
Use rsync for repeatable file sync.

In plain English

SSH encrypts a remote shell session. Use key authentication, keep the private key local and never paste it into a chat or a repository. scp and rsync copy files over the same secure channel.

terminalTerminal

ssh-keygen -t ed25519 -C "you@example.com"
ssh-copy-id deploy@example.com
ssh deploy@example.com 'uname -a'
rsync -avz ./dist/ deploy@example.com:/var/www/app/

Your turn

Copy a project

Medium

Write an rsync command that copies ./dist/ to /var/www/app/ on deploy@example.com.

BASH · starter

rsync

Check your understanding before moving on.

Knowledge checkQuestion 1

Which file is copied to a server for key authentication?

Select an answer to continue

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