1、ssh服务安装
sudo apt install openssh-server
2、ssh服务启动与状态查看
# ssh服务启动命令
sudo systemctl start ssh
# ssh服务状态查看
sudo systemctl status ssh
# 状态输出结果 -- active表示开启状态
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; disabled; vendor preset: enabled)
Active: active (running) since Tue 2025-07-29 15:28:48 CST; 1min 15s ago
Docs: man:sshd(8)
man:sshd_config(5)
Process: 4913 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
Main PID: 4914 (sshd)
Tasks: 1 (limit: 4593)
Memory: 3.3M
CGroup: /system.slice/ssh.service
└─4914 /usr/sbin/sshd -D
3、 ssh服务开机自启
sudo systemctl enable ssh

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