[SOLVED] Can you have mutiple address for two instances of application?

Ajit Gunge · 06-12-2012, 03:35 AM

My requirement is as below.

I want to run two separate instances of an application which require assigning them two separate ip-addresses.All I have is a single IP -address for my machine.Is there a way that I can assign two separate address to the instances.

tshikose · 06-12-2012, 04:11 AM

Hi Ajit,

Yes you can in Linux.

To add to the eth0 interface, you need to have an additionnal file /etc/sysconfig/network-scripts/eth0:0 with content similar to:

Code:

	
	DEVICE=eth0:0
	IPADDR=192.168.2.101
	PREFIX=24
	ONPARENT=”yes”

Ajit Gunge · 06-12-2012, 05:09 AM

Quote:

Originally Posted by tshikose

Hi Ajit,

Yes you can in Linux.

To add to the eth0 interface, you need to have an additionnal file /etc/sysconfig/network-scripts/eth0:0 with content similar to:

Code:

	
	DEVICE=eth0:0
	IPADDR=192.168.2.101
	PREFIX=24
	ONPARENT=”yes”

If I dont have that particular file do I have to create it.I am basically usign Fedora 16 machine.And also can I add any ip-address to that file is it?

tshikose · 06-12-2012, 05:58 AM

Yes, you will need to create the file /etc/sysconfig/network-scripts/eth0:0.
And disable NetworkManager service, but enable network service with

Code:

chkconfig NetworkManager off
service NetworkManager stop
chkconfig network on
service network start

And yes you can put any network configuration (DHCP or static). Of course, you will need to have the remaining network infrastruture available for.

Satyaveer Arya · 06-12-2012, 06:04 AM

Quote:

If I dont have that particular file do I have to create it.I am basically usign Fedora 16 machine.And also can I add any ip-address to that file is it?

Yes, if you don't have that particular file then you have to create it. And you can assign any IP address to that virtual port. You can do this way -

Code:

# cp ifcfg-eth0 ifcfg-eth0:0

and then you can change the ip address of eth0:0 port whatever you like.

Ajit Gunge · 06-12-2012, 08:14 AM

Thanks for your responses.Will try this out and let you know if I face any issues.

Ajit Gunge · 06-18-2012, 09:45 AM

Although I have not verified if this works but I am marking this as closed.