[Fyzbo]

I'm in charge of a linux box running mandrake linux in my school's computer science lab. After installing mandrake the ip set up automatically as DHCP with an IP ending in 130. I was asked to change the IP to everything the same only ending in 17. I was told that it should support a static IP, but I can't get it to work. Can anyone possibly list the steps I should take to make this change?

Thank you in advance.

[5mi11er]

Well, without further information, we're going to be shooting in the dark...

But, assuming you've been able to use the ifconfig command correctly, and have the ip address, and mask set correctly, more than likely you're default gateway entry is now missing.

Something along the lines of:

route add default gw 1.2.3.4

where 1.2.3.4 is replaced by the address of the router's interface that is serving that network, should do the trick.

Hope this helps,
-Scott

[tsunam]

you should have a /etc/conf.d/net (or something similar, its what your /etc/init.d/net.eth0 calls from to boot up eth0) section. if you edit that it'll allow you to change the gateway, dhcp to static etc.

[dago]

Fyzbo,
I don't know Mandrake, but assuming the thing is RedHat based, I think you should have the folder

/etc/sysconfig/network/
or
/etc/sysconfig/network-scripts/

Look for file ifcfg-eth0 and take a look on it
As root change
IPADDR=nnn.nnn.nnn.17

If you need gateway, just place
GATEWAY=nnn.nnn.nnn.nnn

Then execute (root)
ifdown eth0
ifup eth0

Hope it helps.

[Fyzbo]

Alright so I was able to change the IP address. Now the computer is on the campus network, other computers can ssh/telnet to it without a problem. However when on the linux box itself can't search the net. I open mozilla and it can't get to any webpages. Any thoughts on this?

[dago]

probably DNS problem.
Do you know DNS server IP address?

If so, execute

echo "nameserver AA.BB.CC.DD" >> /etc/resolv.conf

but change AA.BB.CC.DD for that IP

[tsunam]

also do a route to see where its going on its path to get out. if you don't have anything under it then its a dns/gateway issue. you can try doing a route add gw 10.128.1.30 <--whatever the address is that'd probably get you out as well. Its probably not talking with the dhcp server correctly.