sshd 側で自動 SSH 再接続 ubuntu 16.04
ClientAliveInterval 60 TCPKeepAlive yes ClientAliveCountMax 10000
https://unix.stackexchange.com/questions/200239/how-can-i-keep-my-ssh-sessions-from-freezing
ClientAliveInterval 60 TCPKeepAlive yes ClientAliveCountMax 10000
https://unix.stackexchange.com/questions/200239/how-can-i-keep-my-ssh-sessions-from-freezing