On Sun, Sep 01, 2002 at 04:17:33AM +0530, Santanu Chatterjee wrote:
> 
> Can someone explain what hostid actually  indicates ?  On my 
> linux box, hostid command gives a number. Now,  I  created a 
> file /etc/hostid and put a number there. now, hostid command 
> gives a different number, but not the one I  put in the file 
> /etc/hostid.

hostid is a set of  programs coming wuth GNU  sh-utils package
and also includes  things like gethostid and sethostid.  These
are used to - get or set the  unique identifier of the current 
host. The importance of this  unique number is to identify the
box (needed on intranets and the like).

Changing /etc/hostid manually will not work.  You need  to run
sethostid, and obtain the data. 
 
Most distros  have this gethostid/ sethostid crippled  and may
not include them.  You need to compile them on your box to get
to the bottom of these. You may have to  get the  source  code
for sh-utils for this kind of thing.

See if you have the man pages for hostid, gethostid, sethostid
and gethostbyname installed. The full docs are as info pages.

HTH

Bish
  
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