If you want to display login information under Linux, you can modify the two files /etc/issue /etc/motd.
If you log in to the final machine (tty1-tty6), you will be prompted with a string.
If you want to fix it, you can modify it in /etc/issue. d Date in local time;
l Which terminal interface is displayed;
m Display the hardware level (i386/i486/i586/i686...);
n Display the network name of the host;
o display domain name;
r Operating system version (equivalent to uname -r)
t Display the time in local time;
s The name of the operating system;
v Operating system version.
Here are the details inside.
If you want to display information when users log in, you can modify the contents of /etc/motd.