hostid(1) [bsd man page]

HOSTID(1)						      General Commands Manual							 HOSTID(1)

NAME

       hostid - set or print identifier of current host system

SYNOPSIS

       hostid [ identifier ]

DESCRIPTION

       The  hostid command prints the identifier of the current host in hexadecimal.  This numeric value is expected to be unique across all hosts
       and is commonly set to the host's Internet address.  The super-user can set the hostid by giving a hexadecimal argument	or  the  hostname;
       this is usually done in the startup script /etc/rc.local.

SEE ALSO

       gethostid(2), sethostid(2)

4.2 Berkeley Distribution					    May 5, 1986 							 HOSTID(1)

GETHOSTID(2)						     Linux Programmer's Manual						      GETHOSTID(2)

NAME

       gethostid, sethostid - get or set the unique identifier of the current host

SYNOPSIS

       #include <unistd.h>

       long gethostid(void);
       int sethostid(long hostid);

DESCRIPTION

       Get  or	set  a unique 32-bit identifier for the current machine.  The 32-bit identifier is intended to be unique among all UNIX systems in
       existence. This normally resembles the Internet address for the local machine, as returned by  gethostbyname(3),  and  thus  usually  never
       needs to be set.

       The sethostid call is restricted to the superuser.

       The hostid argument is stored in the file /etc/hostid.

RETURN VALUE

       gethostid returns the 32-bit identifier for the current host as set by sethostid(2).

CONFORMING TO

       4.2BSD.	 These	functions  were  dropped  in  4.4BSD.	POSIX.1  does not define these functions, but ISO/IEC 9945-1:1990 mentions them in
       B.4.4.1.  SVr4 includes gethostid but not sethostid.

FILES

       /etc/hostid

SEE ALSO

       hostid(1), gethostbyname(3)

Linux 0.99.13							    1993-11-29							      GETHOSTID(2)