我有两台 Ubuntu 云服务器，我发现某些内容与另一台服务器不匹配，任何人都可以帮我找到什么是 tty1 以及为什么它显示 root 仍处于登录状态？
在此 server1 中，tty1 仍然登录但未显示，但它显示另一个 server2 仍然登录。
可以看到在tty1登录中没有显示任何IP地址。
root@server1:/home/ubuntu# last -a | grep -i still
ubuntu pts/2 Sun Dec 25 08:09 still logged in MYIPADDRESS
reboot system boot Wed Nov 9 21:06 still running 5.15.0-52-generic
root@server2:/etc/apt# last -a | grep -i still
ubuntu pts/0 Sun Dec 25 07:01 still logged in MYIPADDRESS
root tty1 Sat Dec 10 18:22 still logged in
reboot system boot Sat Dec 10 18:16 still running 5.4.0-135-generic
reboot system boot Sun Sep 18 08:06 still running 5.4.0-125-generic
reboot system boot Sun Sep 18 05:10 still running 5.4.0-125-generic
reboot system boot Sat Sep 17 02:49 still running 5.4.0-125-generic
reboot system boot Thu Dec 24 08:44 still running 5.4.0-58-generic
reboot system boot Thu Dec 10 21:36 still running 5.4.0-26-generic