ssh connection refused with out iptables rulles

Question

I changed the ssh port from 22 to 2021 and it worked correctly till 3hours ago,after that when I can't connect to ssh.

ssh: connect to host 130.185.72.125 port 2021: Connection refused

so I checked iptables,I stop it from webmin,and

Chain INPUT (policy ACCEPT) target prot opt source destination
 
Chain FORWARD (policy ACCEPT) target prot opt source destination
 
Chain OUTPUT (policy ACCEPT) target prot opt source destination

where is the problem?

Answer 1

The sshd process may not be running at all.

try checking with:

netstat -tulpn | grep LISTEN | grep sshd 

to see if it's running, and on which port.