我一直在环顾四周，但找不到解决我遇到的问题的方法。我正在运行Ubuntu 16.04 LTS，我按照 Ubuntu页面上的说明2222通过更新sshd_config文件来更改 SSH 端口。
# What ports, IPs and protocols we listen for
Port 2222
sudo systemctl restart sshd.service但是，当我执行命令时，我只收到以下错误：
Job for ssh.service failed because the control process exited with error code. See "systemctl status ssh.service" and "journalctl -xe" for details.
然后我执行命令systemctl status ssh.service并得到
? ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2016-09-07 23:24:04 EDT; 1min …