kazulog@sv2:~$ cat /etc/os-release | head -2
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
kazulog@sv2:~$ sudo journalctl --list-boots | cat
IDX BOOT ID                          FIRST ENTRY                 LAST ENTRY
  0 b415d80db5214178a00be8fc045ec28f Sat 2026-09-12 09:01:46 JST Sat 2026-09-12 09:08:30 JST
kazulog@sv2:~$ which telnet ssh
/usr/bin/telnet
/usr/bin/ssh