You’ve just rebooted your server. Users complain that the server is refusing secure connections.
Which of the following is most likely causing this problem?

A.
The clients are not resolving the server name properly.

B.
sshd is not configured to start in the default runlevel.

C.
sshd is using tcpwrappers for security.

D.
The public keys have been corrupted on the server.

E.
The users need to restart their ssh-agent.

Explanation:
To enable the ssh connection sshd service should start. Probably on first reboot sshd service is
not started. So you should start the sshd service. To start sshd service service sshd start To start
sshd service automatically on next reboot chkconfig sshd on