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RE: Renaming host



actually the man to which you r mailing is not here,he is presently at
banglore strugling for getting a job,i am his brother

-----Original Message-----
From: Keith Morse [mailto:kgmorse mpcu com]
Sent: Thursday, March 28, 2002 3:24 AM
To: RedHat List (E-mail)
Subject: Re: Renaming host


On Wed, 27 Mar 2002, Patrick Nelson wrote:

> So I posted numerous times about the issue hostname changing.  No
> response... which is cool.  So I embarked down to find out what are the
> specifics about renaming a host.  My main attempt was to do this on a
> running system.  The reason I'm doing this is part of a large testing
> environment.  So I ultimately know simple steps in the renaming process,
> however they involve a reboot rather than a simple network restart.  Here
is
> the process:
> 
> 1.  Edit /etc/sysconfig/network 
> 2.  Reboot
> 
> I also had to deal with changing nameservers:
> 
> 1.  Edit /etc/resolv.conf
> 2.  service network restart
> 
> I also had to deal with Tripwire:
> 
> 1.  Rename the Key file
> 2.  Rename the database (and the backup file)
> 3.  Dump old reports (my preference)
> 4.  Edit old profile and put in new hostname
> 5.  Update the database with new profile
> 
> I wrote a script that deals with all of this for me and great I rename the
> system and after the reboot it's cool.  The thing that bothers me is why I
> can't do this without a reboot.  Not know where else to look I'm asking if
> anyone knows any other info that can help me.


AFAIK, the host's hostname can be set/changed with the command "hostname".  
I believe this is how "/etc/rc.sysinit" sets it on a system boot.  It 
sources "/etc/sysconfig/network" which sets the variable "HOSTNAME" to 
it's current value.  You should be able to run "hostname" with the name as 
a arguement.  YMMV



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