1 00:00:06,559 --> 00:00:08,859 Let's review the commands that we have seen in this lesson. 2 00:00:09,480 --> 00:00:14,887 Firewall CMD is what we used to open the firewall after reconfiguring SSH to listen 3 00:00:14,887 --> 00:00:20,294 on a non standard port. But that's Red Hat and family on Ubuntu. UFW is 4 00:00:20,295 --> 00:00:25,702 doing the equivalent semanaged port is what you need to tell Selinux on the Red 5 00:00:25,702 --> 00:00:31,109 Hat system to allow SSH to bind to this non default port. 6 00:00:31,780 --> 00:00:36,155 Then you have used SSH keygen and ssh copyId and ssh agent 7 00:00:36,155 --> 00:00:40,530 and ssh. Add all of these to set up keybase authentication.