HP UX Using an /etc/hosts File, Using Special Input Devices, How the X Server Chooses the Default Keyboard and Pointer

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Note: The number in an Xnscreens file does not necessarily refer to a physical screen number; any meaning implied by the number is for the user to define. There are no semantics applied to the number except that the Xnscreens files are used when X is started on display <name>:n.0. For example, an X3screens file does not necessarily imply device file /dev/crt3; an X3screens file can use whatever device file the user specifies. The same applies to the X*devices, X*.hosts, X*.pointerkeys, etc., files as well.

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Using an /etc/hosts File

This file need not be present if your system is configured to query a nameserver.

The /etc/hosts file is an ASCII text file containing a list of all the host names and internet addresses known to your system, including your own system.

If your system is not connected to a network, use the loopback address (127.0.0.1) and the hostname unknown:

127.0.0.1 Unknown

For a local system to access a remote host:

•The address and hostname of the remote host must be listed in the local system's /etc/hosts file.

•The user must have a valid login (username and password) and home directory on the remote host.

Using Special Input Devices

Input devices are connected to Hewlett-Packard computers through several different hardware interfaces. Among the interfaces supported are the Hewlett-Packard Human Interface Link (hp-HIL) and the industry standard RS-232C (serial) and DIN interfaces. Some Hewlett-Packard computers do not support all of these interfaces.

How the X Server Chooses the Default Keyboard and Pointer

The X server can access input devices through any of the above interfaces. Devices that use the hp-HIL interface and devices that use the DIN interface and are compatible with the hp DIN keyboard and mouse can be used by simply plugging them into the computer. Devices that use the RS-232C interface require the installation of input device driver software before they can be used.

If no explicit input device configuration is done, the X server chooses the X keyboard device and X pointer device from the input devices that are connected to the computer (in most cases, the keyboard and a mouse). On computers that support both hp-HIL and DIN interfaces, the DIN input devices are used if both types of devices are connected.

Page 80 Graphics Administration Guide for HP-UX 10.20