hpux man page for hostname

hostname(1)						      General Commands Manual						       hostname(1)

NAME
       hostname - set or display name of current host system

SYNOPSIS
       [name_of_host]

DESCRIPTION
       The command displays the name of the current host, as given in the system call (see gethostname(2)).  Users who have appropriate privileges
       can set the hostname by giving the argument name_of_host; this is  usually  done  in  the  startup  script  The	name_of_host  argument	is
       restricted to characters as defined in

       The  system might be known by other names if networking products are supported.	See the node manager documentation supplied with your sys-
       tem.

WARNINGS
       If the name_of_host argument is specified, the resulting host name change lasts only until the system is rebooted.  To change the host name
       permanently, run the special initialization script (see

       Many  types  of networking services are supported on HP-UX, each of which uses a separately assigned system name and naming convention.	To
       ensure predictable system behavior, it is essential that system names (also called host names or node names) be assigned in such  a  manner
       that they do not create conflicts when the various networking facilities interact with each other.

       The  system  does not rely on a single system name in a specific location, partly because different services use dissimilar name formats as
       explained below.  The and commands assign system names as follows:

				      +--------------+---------------+----------------+---------------------------+
				      |Node Name     | Command	     | name Format    | Used By 		  |
				      +--------------+---------------+----------------+---------------------------+
				      |Internet name | hostname name | sys[.x.y.z...] | ARPA and NFS Services	  |
				      |UUCP name     | uname -S name | sys	      | uucp and related programs |
       +--------------+--------------+---------------+-----------------------+--|Node-+-Name-------|Command-------+ |name   Format	|Used	By
       |  +--------------+--------------+---------------+-----------------------+ |Internet name |hostname name |sys[.x.y.z...] |ARPA and NFS Ser-
       vices  | |UUCP name     |uname -S name |sys	      |uucp, related  programs	|  +--------------+--------------+---------------+--------
       --------------+

       where  sys  represents  the  assigned  system  name.   It  is recommended that sys be identical for all commands and locations and that the
       optional follow the specified notation for the particular ARPA/NFS environment.

       Internet names are also frequently called host names or domain names (which are different from NFS domain names).  Refer to hostname(5) for
       more information about Internet naming conventions.

       Whenever  the  system  name is changed in any file or by the use of any of the above commands, it should also be changed in all other loca-
       tions as well.  Other files or commands in addition to those above (such as if used to circumvent for example) may contain or alter  system
       names.  To ensure correct operation, they should also use the same system name.

       System names are normally assigned by the script at start-up, and should not be altered elsewhere.

       Setting	a  hostname of more than 64 bytes is possible only with the appropriate configuration options enabled.	It is strongly recommended
       that all related documentation be completely understood before setting a larger hostname.  A hostname larger than 64 bytes can cause anoma-
       lous or incorrect behavior in applications which use the command or the system function to access the name.

AUTHOR
       was developed by the University of California, Berkeley.

SEE ALSO
       uname(1), gethostname(2), sethostname(2), uname(2), hostname(5), nodehostnamesize(5).

																       hostname(1)