ubuntu 22.04にssh接続

（１）Open SSH Serverのインストール
$ sudo apt update
$ sudo apt install openssh-server

（２）SSH Serverを実行
$ sudo systemctl status ssh
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2021-01-01 11:30:48 KST; 10s ago
Docs: man:sshd(8)
man:sshd_config(5)
Main PID: 1013995 (sshd)
Tasks: 1 (limit: 19042)
Memory: 1.3M
CGroup: /system.slice/ssh.service
└─1013995 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups

1月 01 11:30:48 mjs systemd[1]: Starting OpenBSD Secure Shell server...
1月 01 11:30:48 mjs sshd[1013995]: Server listening on 0.0.0.0 port 22.
1月 01 11:30:48 mjs sshd[1013995]: Server listening on :: port 22.
1月 01 11:30:48 mjs systemd[1]: Started OpenBSD Secure Shell server.

もし実行されていない場合は、次のコマンドで実行します。

$ sudo systemctl enable ssh
$ sudo systemctl start ssh

（３）Firewall設定
$ sudo ufw allow ssh

$ sudo ufw status
Status: inactive

（４）IPアドレスの確認
$ ip a
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: wlp1s0: mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f1:61:31:31:b1:a2 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.14/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp1s0