Help Adding Ips to RedHat
 

I have a box and I'm TRYING to add new ips to it. its redhat linux. I know in BSD I'd add the aliases in rc.conf, but in linux i'm stumped. can someone tell me what to do, and if possible not assume that I know ANYTHIGN about linux?

man ifconfig

I looked there I also tried useing netconfig -d eh0:1

Nothing seems to work .

What version of redhat?

Check out /etc/sysconfig/networking ...

Red Hat Enterprise Linux ES release 3 (Taroon Update 1)

Anyone awake?

Let's say you wanted to add the IP address is 66.218.71.198, you would enter:

/sbin/ifconfig eth0:1 66.218.71.198

Do this for all IPs you want to add. Don't forget to put them in your startup file so that when you reboot you don't have to rekey them.

Thanks man :thumbsup Can you please tell me where the startup file is?

Use rc.local found at /etc/rc.d/rc.local

THANK YOU.
YOU made my day

I forgot to mention that if you're adding more than one IP address it would appear as follows:

/sbin/ifconfig eth0:1 66.218.71.198
/sbin/ifconfig eth0:2 66.218.71.199
/sbin/ifconfig eth0:3 66.218.71.200

Note the increment referencing your ethernet card for each IP.

I worked that out thank. :)

look in /etc/sysconfig/network-sc r ipts/

you will see some files like : ifcfg-eth0

copy this to ifcfg-eth0:1

then edit it naming the device eth0:1
and change the ipaddress

then type:

ifup ifcfg-eth0:1

Blazin has it right for red hat.

YOu can also add a range of ip's with this config file:

Call the script (with 0 being a counter 0 thru whatever for each non sequential range you want to add): ifcfg-eth0-range0


and the contents of the file should be:
IPADDR_START=123.123.123.1
IPADDR_END=123.123.123.20
CLONENUM_START=0
BROADCAST=123.123.123.256
NETMASK=255.255.255.0
NETWORK=123.123.123.0
ONBOOT=yes

That would creat the ip's from 1 - 20

Obviously replace the network, broadcast, and netmask with your own info

i forgot once you edit the files, i restart the network so the changes take place with:

/etc/rc.d/init.d/network restart




and then you can test your work with:

ifconfig