Linode/Setup: Difference between revisions
(Created page with "Assuming you have made a Linode with Debian 11 == User accounts == * Make user accounts: <syntaxhighlight lang="bash"> adduser \ --system \ --shell /bin/bash \ --gecos 'User Description If u want' \ --group \ --home /home/USERNAME \ USERNAME </syntaxhighlight> * Add user to <code>sudo</code> group (if needed) <syntaxhighlight lang="bash"> usermod -aG sudo USERNAME </syntaxhighlight> == Security == === Install RSA Keys === === Configure s...") |
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== Security == | == Security == | ||
=== | === Add cryptographic public keys for user authentication === | ||
* RSA keys (has known vulnerabilities) | |||
* [https://www.unixtutorial.org/how-to-generate-ed25519-ssh-key/ ed25519 keys] (better alternative: faster, more secure, resilient against hash-function collision attacks, shorter) | |||
=== Configure sshd === | === Configure sshd === | ||
Revision as of 04:56, 21 November 2022
Assuming you have made a Linode with Debian 11
User accounts
- Make user accounts:
adduser \
--system \
--shell /bin/bash \
--gecos 'User Description If u want' \
--group \
--home /home/USERNAME \
USERNAME
- Add user to
sudogroup (if needed)
usermod -aG sudo USERNAME
Security
Add cryptographic public keys for user authentication
- RSA keys (has known vulnerabilities)
- ed25519 keys (better alternative: faster, more secure, resilient against hash-function collision attacks, shorter)
Configure sshd
- Disable password login
- Disable root login