用Putty登录CentOS的一些疑问

about80kg

刚接触linux，很菜，很菜~~
用putty，telnet连接centos，可以正常使用；
但客户端挂那边不去动它，就会死掉，没法操作了，之后就跳错；

就是这个问题，提示是网络问题，
是不是centos有自保的设置，超出多少时间不进行操作，系统会自动关闭连接？

大牛，求解，谢谢~~

dxggddd

连接时间限制

about80kg

回复 2# dxggddd


    要怎么更改连接时间呢，谢谢~

dxggddd

打开putty.exe→Connection；
设置会话连接时间(0秒代表关闭此功能)
你可以设成10，每过10秒来发送一个包，确实会话连接正常

about80kg

回复 4# dxggddd


    谢谢，我试一下~

about80kg

回复 4# dxggddd


    不行哦，还是会死掉，然后还是同样的报错，会不会是linux系统里面需要设置什么啊~

chenyx

ClientAliveCountMax
             Sets the number of client alive messages (see below) which may be sent without sshd receiving any messages back from the client.  If this threshold is reached
             while client alive messages are being sent, sshd will disconnect the client, terminating the session.  It is important to note that the use of client alive
             messages is very different from TCPKeepAlive (below).  The client alive messages are sent through the encrypted channel and therefore will not be spoofable.
             The TCP keepalive option enabled by TCPKeepAlive is spoofable.  The client alive mechanism is valuable when the client or server depend on knowing when a con-
             nection has become inactive.

             The default value is 3.  If ClientAliveInterval (see below) is set to 15, and ClientAliveCountMax is left at the default, unresponsive ssh clients will be
             disconnected after approximately 45 seconds.

     ClientAliveInterval
             Sets a timeout interval in seconds after which if no data has been received from the client, sshd 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.

楼主看下你服务器上的这两个的值是多少

about80kg

回复 8# chenyx


    啊~这个要怎么看！

chenyx

1. cat /etc/ssh/sshd_config | grep Client

复制代码

需要root权限才能看,普通用户的话,命令前面加sudo

about80kg

回复 10# chenyx


    这个是查看ssh的参数吧，我是telnet上去的