The sshd command

OpenSSH daemon 3 examples from the lessons of the IVski Linux Playground — try them in the terminal next to them.

Options in the examples

-t

Test mode. Only check the validity of the configuration file and sanity of the keys.

-T

Extended test mode. Check the validity of the configuration file, output the effective configuration to stdout and then exit.

Examples

sudo sshd -T | grep -E 'passwordauthentication|permitrootlogin'

sudo sshd -t

sudo sshd -t && sudo systemctl reload ssh

Lessons that use sshd

• Harden SSH — Keys Only
• Project: A Server from Scratch

Related commands

• grep
• systemctl