HPUX hosts[4]

hosts(4) hosts(4)
NAME
hosts - host name data base
DESCRIPTION
The file /etc/hosts associates Internet addresses with official host
names and aliases. This allows a user to refer to a host by a
symbolic name instead of an Internet address.
Note: This file must contain all addresses for local interfaces that
ifconfig needs at boot time (see ifconfig(1m)), and, in HP clusters,
the address of each node in the cluster. When using the name server
(see named(1m)), or Network Information Service (see ypserv(1m)), this
file serves only as a backup when the server is not running. In such
circumstances, it is a common practice for /etc/hosts to contain a few
addresses of machines on the local network.
/etc/hosts should contain a single line for each host with the
following information:
<internet address> <official host name> <aliases>
If running Network Services as well as ARPA Services, an official host
name consists of the first field (the node name field) of the three-
field host name supported by NS. Aliases are other names by which a
host is known. They can substitute for the official host name in most
commands. For example:
192.45.36.5 hpdxsg testhost
In this example, users can use remote login on hpdxsg by using the
command:
rlogin testhost
instead of
rlogin hpdxsg
If your system is in a domain naming environment, an official host
name consists of the full domain extended host name. For example:
192.45.36.5 hpdxsg.xsg.hp.com hpdxsg testhost
A line cannot start with a blank (space or tab character). Items are
separated by any number or combination of space or tab characters
(blanks). A # character indicates the beginning of a comment.
Characters from the # to the end of the line are not interpreted by
routines that search the file. Trailing blanks are allowed at the end
of a line.
Hewlett-Packard Company - 1 - HP-UX Release 9.0: August 1992
hosts(4) hosts(4)
For the DARPA Internet network, this file is normally created from the
official host database maintained at the Network Information Control
Center (NIC), although local changes may be required to bring it up to
date with respect to unofficial aliases and/or unknown hosts.
Network addresses are specified in the conventional Internet dot
notation using the inet_addr() routine from the Internet address
manipulation library (see inet(3N)). Host names can contain any
printable character other than a white space, newline, or comment
character.
EXAMPLES
See /etc/hosts.
AUTHOR
hosts was developed by the University of California, Berkeley.
SEE ALSO
gethostent(3N), inet(3N).
Hewlett-Packard Company - 2 - HP-UX Release 9.0: August 1992