+-----------------------------------------------------------------------
| Running login_duo on OpenBSD
+-----------------------------------------------------------------------

First steps
===========
In order to use Duo Unix for two-factor authentication you have to first
sign up for an account if you don't already have one.
https://signup.duosecurity.com/

Then create a new UNIX Integration to get an integration key, secret
key, and API hostname. (See:
https://www.duosecurity.com/docs/getting_started)

Once you have this information, edit /etc/login_duo.conf to
match your keys.

Test login_duo
==============
As a regular user, run /usr/local/sbin/login_duo. You should
be provided with an enrollment link. Enroll your phone then run
/usr/local/sbin/login_duo again. Once you provide a valid pass
code you should get a SUCCESS message.

Enable SSH two-factor authentication
====================================
To enable two-factor authentication add

ForceCommand /usr/local/sbin/login_duo

to your /etc/ssh/sshd_config. Duo Security recommends disabling
PermitTunnel and AllowTcpForwarding when using two-factor
authentication.

When finished, restart sshd.
