# xhost > Manage access control lists for X server connections. > More information: . - Display the current access control list: `xhost` - Allow a specific host to connect to the X server: `xhost +{{hostname}}` - Deny a specific host from connecting to the X server: `xhost -{{hostname}}` - Allow all hosts to connect (disable access control — insecure): `xhost +` - Deny all hosts except those explicitly allowed (enable access control): `xhost -` - Remove a specific user or address using a family prefix (like `inet:hostname` or `si:localuser:username`): `xhost -{{family:name}}`