On 08/24/2018 05:40 PM, TE Dukes wrote: > >> getent hosts localhost > ::1 localhost Can't say that's what I expected. What about "getent hosts 127.0.0.1"? Also, uncomment the ::1 line in /etc/hosts. >> Can you reach localhost by "normal" means? >> telnet localhost 25 > I cannot. Can you share the specific output of the command? It might help. From what you've told us, localhost resolves to the IPv6 local address, and that address is present on your "lo" device. You *should* be able to connect. The type of error might indicate what is still wrong with the system.