kazulog@sv1:~$ cat /etc/os-release | head -2
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
kazulog@sv1:~$ sudo useradd -m -s /bin/bash telnetdemo
kazulog@sv1:~$ echo 'telnetdemo:TelnetIsPlaintext' | sudo chpasswd
kazulog@sv1:~$ id telnetdemo
uid=1001(telnetdemo) gid=1001(telnetdemo) groups=1001(telnetdemo)