# 开启防火墙
sudo ufw enable
# 开启22号端口
sudo ufw allow 22
# 重启防火墙
sudo ufw reload
# 查看状态
sudo ufw status
# 安装ssh
sudo apt install openssh-server
# 尝试能否远程登录
ssh localhost
- Connection Network refused ubuntu Puttyconnection network refused ubuntu err_connection_refused connection connect refused failed sockjs err_connection_refused 1685340190468 connection refused模式mac err_connection_refused connection refused网页 connection the localhost refused connection connect refused stable connection readiness coredns refused connectexception connection transport refused