topic IP address change. in Operating System - HP-UX

IP address change.

Joseph Chakkery — Tue, 17 Jul 2001 08:13:19 GMT

I am an infant in Unix world so I need ur valuable help.
My network administrator wants to change the ip address of my HP machine from 128.x.x.x to 195.x.x.x
My doubt is this possible? If so can i do it from SAM. What precautions I have to take ?
Whether I have to do it single user mode?

Thanks in advance.

Regards
Joe.

Re: IP address change.

Alex Glennie — Tue, 17 Jul 2001 08:25:06 GMT

If it were me I'd just run from the command line :

set_pams ip_address

Precautions : ensure its a valid IP address and make sure it resolves both forwards and backwards wrt ip address and hostname, especially if using DNS.

applications such as ITO and Omniback often require special consideration wrt backup schedules, licensing etc ....

Re: IP address change.

Robin Wakefield — Tue, 17 Jul 2001 08:25:57 GMT

Hi Joe,

HP have a script for doing this:

/sbin/set_parms ip_address

If you're running NIS, files in /var/yp may also contain the IP address - check first.

Robin.

Re: IP address change.

Vincenzo Restuccia — Tue, 17 Jul 2001 08:27:41 GMT

#set_parms ip_address
SAM->Network and interface card
#vi /etc/hosts,/etc/rc.config.d/netconf,/sbin/init.d/net stop|start

Re: IP address change.

Printaporn_1 — Tue, 17 Jul 2001 08:30:00 GMT

yep , you can do it in sam
- make sure that no network application running
- goto sam -> networking and communication -> network interface card
- select card , action -> modify
- change IP address.

-----------
normally sam will update /etc/hosts
but please check for make sure

-----------
if you don't want to use sam , can change in /etc/rc.config.d/netconf
change to new IP , and manually change /etc/hosts

Re: IP address change.

Alexander M. Ermes — Tue, 17 Jul 2001 08:33:03 GMT

Hi there.
You can do it with sam. But do yourself a favour. Check the software on your system. whether it is refering to the old IP adress
( OmniBack II Vers. 3.0 and higher license string etc ).
What you can do to keep your old ip adress :
go to /etc/rc.config.d. Check the netconf file.
You will find a piece like this for the interface you want to change :

INTERFACE_NAME[0]="lan0"
IP_ADDRESS[0]="192.168.127.1"
SUBNET_MASK[0]="255.255.255.0"
BROADCAST_ADDRESS[0]="192.168.127.255"
INTERFACE_STATE[0]=""
DHCP_ENABLE[0]=0

copy these lines after this piece and make them comment with the '#' sign.
The original lines will be changed by sam, when you change the ip-adress.
So you have your old data of the interface just in case it won't work with the new ip adress.

Rgds
Alexander M. Ermes

Re: IP address change.

Ravi_8 — Tue, 17 Jul 2001 08:37:07 GMT

Hi,

No harm in changing the IP address and no need to get into single user mode. and many ways to change the IP address.

#set_parms ip_address.
or
# vi /etc/rc.config.d/netconf in this file replace the new IP with existing IP and reboot the machine.
or
SAM-->Networking and Communication-->Network interface-->action-->modify

Re: IP address change.

Joseph Chakkery — Tue, 17 Jul 2001 09:38:06 GMT

Thanks to all for ur valuable advise.

Regards
Joe.