A. It's common for administrators to connect to many different servers at the same time. It can sometimes get confusing as to which host you're currently looking at. BGInfo is a free utility from SysInternals. BGInfo allows you to create a configuration file that can include information such as host name, system information, and much more. It places this information in a configurable location and size on the desktop, including, optionally, as a wallpaper.
Once you have your configuration file (bgi), save it and bginfo.exe to a network share. You could also put your custom wallpaper in the file share, and make sure that if you're specifying a wallpaper image in your configuration file, you specify the UNC path to the wallpaper rather than a local path, as shown here.
Finally, create a batch file (e.g. bgrun.bat) that calls bginfo silently. Again, make sure that the configuration file and bginfo.exe are passed as full UNC paths as shown in my bgrun.bat content:
\\savdalbfs01\tools\bginfo.exe \\savdalbfs01\tools\savtech.bgi /accepteula /silent /timer 0
You can now call bgrun.bat from a login script by setting User Configuration, Policies, Windows Settings, Scripts, Logon and entering the UNC location of bgrun.bat. Link this GPO to the OU containing your users, or even the root of your domain.