In the Security tab, you can configure the host-based access control for security.

Xconfig Properties Dialog Box, Security Tab

Enable Access Control

Turns on the host-based access control which allows connections from the trusted hosts.

When access control is turned on, only the X applications on the trusted hosts can connect to Xmanager. If it is disabled, all X applications can connect to Xmanager.

Trusted Hosts

Shows the hosts you can trust. If a remote Unix host is added to the list, all users on the host can run an X application and connect to Xmanager.


Adds an host to the trusted list.


Removes the selected host from the list.

Warn Unauthorized Connections

Shows a warning dialog box when an unauthorized X application tries to connect to Xmanager. You can accept or reject the connection.