问题现象:
表示连接管道已经断开
解决方法:
方法一:客户端配置
在客户端的 ~/.ssh/ config文件(如不存在请自行创建)中添加下面内容:
ServerAliveInterval 60
方法二:服务器端配置
在服务器的 /etc/ssh/sshd_config 中添加如下的配置:
ClientAliveInterval 60
方法三:临时SSH命令配置
如果只是临时性的连接(即只作用于当前SSH),可以直接使用 ssh 命令参数进行配置。
$ ssh -o ServerAliveInterval=60 user@sshserver
//ServerAliveInterval Sets a timeout interval in seconds after which if no data has been received from the server, ssh(1) will send a message through the encrypted channel to request a response from the server. The default is 0, indicating that these messages will not be sent to the server. This option applies to protocol version 2 only. //ClientAliveInterval Sets a timeout interval in seconds after which if no data has been received from the client, sshd(8) will send a message through the encrypted channel to request a response from the client. The default is 0, indicating that these messages will not be sent to the client. This option applies to protocol version 2 only.
这两个命令前者应用在客户机上,后者应用在服务器上,如果没有管理员权限,那么前者是很好的选择。
这两个的功能是相同的,都是开启一个发送keep-alive包的功能,这样会允许客户端/服务器在一定时间内发送一个特定的包给对方,一旦超时,则说明断线,就关闭链接。这样就避免了链接长时间挂着导致报错。而且,一旦再次报错,稍等片刻便可以再次登录。