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I only accept keys on non-standard SSH ports.

Less spam traffic, easier to access.

Rejecting passwords is just as much a convenience nowadays:

I just don't have passwords on my remote machines any more.

Same here, PasswordAuthentication is globally No, but I always hold an special username for emergencies which is the only user allowed to login via password (easy at sshd_config file, Match User xxxx then "PasswordAuthentication yes"). Besides emergencies, also works wonders when some sysadmins insist to login via bare metal terminal and cannot use a key...

> sysadmins insist to login via bare metal terminal and cannot use a key...

In 2024 how is this an employed person.

This has been my practice for 20+ years of running SSH, that and using Ansible to keep sshd hardened. https://github.com/dev-sec/ansible-collection-hardening/tree...

I also harden my sshd_config.

I mainly disabled all legacy cryptography and types of tunnelling/forwarding that I don't rely on:

https://gist.github.com/sshine/e42ecb7f9d7432e6df331eefdd490...

I also only expose SSH on public interfaces on one machine; all other machines have SSH over VPN.

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