ubuntu12.04 ssh 服务器之后，一段时间没操作之后 终端僵死

Question

ubuntu12.04 ssh服务器之后，一段时间之后 终端僵死，不能做操作，好像有一个快捷键是可以

退出当前的僵死状态的，或者有什么别的方法可以退出僵死状态呢，

有人知道么 ？

Answer 1

Disconnect the ssh connection under the default configuration and press the three keys "Enter ~ ."

Answer 2

It seems that SSH has not been operated for a period of time and the session has been automatically disconnected.

Server side:
Modify the /etc/ssh/sshd_config configuration file ClientAliveInterval 300 (default is 0). The parameter means that every 5 minutes, the server sends a message to the client to maintain the connection. Use service sshd reload to make the modification effective. If you still find that there is a problem, you can try setting 300 to a smaller value, such as 60.

Answer 3

ctrl+z needs to be done twice