Ssh lost access to remote Centos server?

Question

SSH

The access server worked OK, no changes were made to the ports and their protection. Can't connect to remote server. Centos 7. Reboot does not help. What to do?

Answer 1

Let's go in order.
Is the port responding?
Is there any way to get to this server? If yes then show
firewall-cmd --zone=public --list-port

Answer 2

And what does nmap -sS -p 22 ip_server say from that computer from which you are trying to get? Panel-panel, and physics is our everything.

Answer 3

your provider should have vnc if you have
vdska or ipmay
, go through it
and look at the logs what happened there,
well, or leave the firewall
, maybe it blocked
if everything is difficult for you, grunt to the mail [email protected] I will help