ssh tunnel

client & server /etc/ssh/sshd_config 都加上下面的

ClientAliveInterval 30
ClientAliveCountMax 60

/etc/hosts.allow

sshd:ALL

創建文件~/autossh.service

[Unit]
Description=AutoSSH service for a reverse tunnel from some.example.com to localhost
After=network-online.target
[Service]
User=shihyu
Environment="AUTOSSH_GATETIME=0"
ExecStart=/usr/bin/nohup /usr/bin/autossh -f -N -o ServerAliveInterval=30 -o ServerAliveCountMax=60 -R 7777:localhost:22 shihyu@106.104.121.78  -o BatchMode=yes -i /home/shihyu/.ssh/id_rsa_jason_yao
Restart=always
RestartSec=60
[Install]
WantedBy=multi-user.target

# 轉移文件
sudo mv ~/autossh.service /etc/systemd/system/
# 重新加載
sudo systemctl daemon-reload
# 設置讓autossh可用
sudo systemctl enable autossh.service
# 啟動autossh服務
sudo systemctl start autossh.service
# 查看是否有問題，查看autossh服務的狀態
sudo systemctl status autossh.service

ssh -vvv shihyu@localhost -p 7777