SSH login is stuck and disconnected

ssh The login is stuck and disconnected

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In use Mac Of terminal Log on to the remote server , If you don't operate for a period of time, you will get stuck and then disconnect . In this way, you have to re-enter the command and password to log in , The experience and operation are very bad .
The solution is to send an empty packet for a period of time like a long connection , This needs to be modified ssh Configuration file for .
ssh The configuration file of is in /etc/ssh Below directory .
Here are two documents ：
ssh_config
sshd_config

ssh_config and sshd_config

ssh_config It's a profile for the client
sshd_config The configuration file is for the server
Modifying these two configuration files is to change yourself Mac Upper ssh The operation mechanism of the program

Solve the problem of stuck and disconnected connections

1. stay ssh_config Add the following configuration to the file , Let this machine ssh The program sends an empty packet to the server , To maintain a long connection

ServerAliveInterval 50
ServerAliveCountMax 3

2. restart ssh
sudo launchctl unload -w /System/Library/LaunchDaemons/ssh.plist
sudo launchctl load -w /System/Library/LaunchDaemons/ssh.plist