$ xterm & [1] 7290
chaos:$ Xlib: connection to "grace:0.0" refused by server Xlib: Client is not authorized to connect to Server xterm Xt error: Can't open display: grace:0.0
chaos:$ xhost + Xlib: connection to "grace:0.0" refused by server Xlib: Client is not authorized to connect to Server xhost: unable to open display "grace:0.0"
chaos:~/bin$ logout
iitrc:~$ xhost + access control disabled, clients can connect from any host
iitrc:~$ telnet chaos
$ xhost + access control disabled, clients can connect from any host xhost: must be on local machine to enable or disable access control.