I was not able to connect our test_server and was getting below error.
#ssh test_server
ssh: connect to host test_server port 22: Connection refused
But ILOM (test_server-ilo) was accessible.
1) As ILOM was accessible , so connected to the ILOM first.
#ssh test_server-ilo
Password:
->
2) Started the console by using below command.
-> start /HOST/console
Are you sure you want to start /HOST/console (y/n)? y
Serial console started. To stop, type ESC (
test_server login: root
Password:
#
#pwd
/root
#hostname
test_server
#
3) Found sshd service was not running on the server.
#ps -ef|grep sshd
(you get process like "/usr/sbin/sshd -D" , if sshd service running on your server)
in my case it was not running.
4) Started the sshd service.
#systemctl start sshd.service
Above action resolved the issue.
In some cases ,there may be other types of issue , like below :-
"ssh_keys" not present in /etc/group file.
#cat group|grep ssh
sshd:!:74:
So add "ssh_keys:x:102:" in the /etc/group like below and save the file.
Restart the sshd service.
#cat group|grep ssh
sshd:!:74:
ssh_keys:x:102:
#systemctl start sshd.service
