OpenBSD does not come with ''sudo'' by default, and normally you don't want to log in as root. When you need to perform sysadmin tasks, you change to super user by running:

<code>
$ su
</code>

OpenBSD provides ''doas'', a lightweight and secure replacement for ''sudo''. This allows you to run a command as root by doing:

<code>
$ doas command
</code>

You will want to add your user to ''/etc/doas.conf'':

<code>
# vi /etc/doas.conf
</code>

(Note the # sign means you must run this as root, by logging in first using ''su''; a $ sign means you run the command as your normal user)

Here's ''/etc/doas.conf'' should contain (replace user123 with your own username):

<code>
permit nopass user123 as root
</code>

This permits user123 to login as root using ''doas'' without a password.

After doing this, you can confirm it works:

<code>
$ doas whoami
user123
</code>

If you find the need to constantly enter your user password for when you need to do anything as root annoying, you can have in your ''/etc/doas.conf''
<code>
permit persist user123 
</code>

See also, https://flak.tedunangst.com/post/doas-mastery