kazulog@sv1:~$ ssh taro@localhost
Welcome to Ubuntu 26.04 LTS (GNU/Linux 7.0.0-30-generic x86_64)

 * Documentation:  https://docs.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/pro

 System information as of Thu Sep 10 14:50:35 JST 2026

  System load:  0.12              Processes:             108
  Usage of /:   3.6% of 60.93GB   Users logged in:       0
  Memory usage: 12%               IPv4 address for ens2: 10.19.12.11
  Swap usage:   0%


Expanded Security Maintenance for Applications is not enabled.

96 updates can be applied immediately.
87 of these updates are standard security updates.
To see these additional updates run: apt list --upgradable

Enable ESM Apps to receive additional future security updates.
See https://ubuntu.com/esm or run: sudo pro status


Last login: Thu Sep 10 14:48:26 2026 from 10.100.3.1
taro@sv1:~$ whoami
taro
taro@sv1:~$ exit
logout
Connection to localhost closed.
kazulog@sv1:~$ sudo journalctl -u ssh --no-pager --since '2 min ago' | grep -E 'taro' | tail -3
Sep 10 14:50:44 sv1 sshd-session[5095]: Accepted publickey for taro from ::1 port 35702 ssh2: ED25519 SHA256:TacHzXz0/ATZw/mJpyrO5/5UTf6VseuQMZNq6LagEF8
Sep 10 14:50:44 sv1 sshd-session[5095]: pam_unix(sshd:session): session opened for user taro(uid=1001) by taro(uid=0)
Sep 10 14:50:44 sv1 sshd-session[5095]: pam_unix(sshd:session): session closed for user taro