IP Changes and Its Effect

[Sharon Bi_4]

Hi,

Our company is planning to change all the IP adresses on all machines. But we
have NFS, NIS, DNS running.

As for NFS, I need to change the /etc/fstab and nsswith.conf files. But what
about the machine which is exporting the files?

Will it have any effect on NIS?

We also have a lot of network printers and remote printers, do I have to
reinstall them all? ( We use JetAdmin on network printers. ) Where can I gain
printers' IP on a machine?

Your help will be highly appreciated. This will be a big project for us.
Thanks in advance!!

[Robert Gamble_3]

Sharon,

First off, create a plan and a rollback plan on paper.
How many machines ? A few, a few dozen, or a few hundered ? If a few hundred, I
would recommend only doing a few dozen at a time if possible.

Re: printers: if the printers are already setup in jetadmin, all you need to
do is change the IP of the printer hostnames in DNS. I've done that many times.

Good Luck!

[Fernando Santana]

Will it have any effect on NIS?

I would do the NIS master first. Change your
/etc/rc.config.d/netconf then:

1. init 1 #Provided you have slave serves. 2. vi /etc/hosts
#Change the master's IP.
3. init 3
4. /var/yp/make hosts

Then do the slaves and clients. While they're down,
on your master NIS, update your ascii hosts file and make (distribute). I
preffer to bring the servers
down rather than doing online lan interface changes.

Note this is in the case that your name resolution
order in nsswitch.conf tries NIS first.