In OpenBSD, you can restart the OpenSSH daemon without rebooting the system by using the kill command to send a signal to the sshd process.
To restart the OpenSSH daemon, you can use the following steps:
Find the process ID of the sshd process. You can do this by running the ps aux | grep sshd command. This will display a list of all processes with the name sshd, along with their process IDs.
Send the SIGHUP signal to the sshd process. You can do this by running the kill -HUP <process ID> command, where <process ID> is the process ID of the sshd process that you obtained in step 1. This will cause the sshd process to reload its configuration and apply any changes that you have made.
For example, to restart the sshd process with process ID 12345, you can use the following command:
kill -HUP 12345
Keep in mind that these are just general steps, and your specific configuration may vary depending on your system's setup. Consult the OpenBSD documentation for more detailed information.