Is there a text file anywhere, where I can add some hosts to so that I don't have to keep doing `xhost +host`? I thought it was meant to be /etc/X0.hosts, but I don't have this file (do I need to create it?).
I need to update /etc/hosts file with same entry in 20 servers. Is there any script or command that can help me to put this entry in all servers at once instead of going to each server one by one. thanks