Remote SSHD Hint: Server unexpectedly closed network connection

Remote SSHD Hint: Server unexpectedly closed network connection

After restarting the server effect is the same, after a period of time to connect, finally connected to the remote. After you create a new remote connection, you find the prompt:

Server unexpectedly closed network connection

Baidu and Google search for a while, modified after sshd_config, the effect is the same.

Then look at the

[[email protected] log]# tail-f/var/log/secure//view Log in log file

Found the problem, a lot of IP has been violent crack, login information has been brushing the screen

[[email protected] log]# vim/etc/ssh/sshd_config//modify port to 3330

[[email protected] log]# iptables-i input-p TCP--dport 3330-j ACCEPT//Add firewall 3330 port allow

[[Email protected] log]# service Iptables save//Save rule

[[email protected] log]#/etc/init.d/sshd Restart//restart SSHD

[[email protected] log]# tail-f/var/log/secure//re-view log no login log and then swipe the screen.

In Telnet, normal.

It's important to look at the logs. Very important.

Remote SSHD Hint: Server unexpectedly closed network connection