First LDAP encounter

I have started to learn LDAP today. Here is how I did it:

• Install new Red Hat Linux 7.2 server.
• During install
  • Specify to authenticate through LDAP which is located at 127.0.0.1
  • I forgot to permit SSH connection during firewall configuration
  • In boot manager configuration, I have specified to use GRUB with which I don’t have any experience yet.

When I did all this, I have found myself in situation where machine refused any connections via secure shell, refused any logins locally, Result:

1. Unusable machine
2. Frozen butt (a/c in the server room)
3. Complete reinstall
4. Linux LDAP Tutorial