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Home > Archive > Red Hat Topics > July 2005 > Cannot turn off DHCP in RedHat 9
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Cannot turn off DHCP in RedHat 9
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| heybrakywacky@hotmail.com 2005-07-16, 2:45 am |
| I'm running a RedHat 9 system, and I'm trying to configure its primary
network interface (eth0) to have a static IP address. I run 'setup',
configure all of the proper settings under 'Network Configuration' (to
my knowledge), and verify the contents of
/etc/sysconfig/network-scripts/ifcfg-eth0:
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.8.15
NETMASK=255.255.255.0
GATEWAY=192.168.8.1
But if I do a network restart (or even a reboot, for that matter),
whenever the eth0 interface comes back up, it keeps querying my DHCP
server for its settings, and configuring the interface as such.
Am I missing a configuration step? I've tried various things like
getting rid of the dhclient-eth0.leases file and dropping the lease
before resetting the network, but I can't find any combination that
will solve my problem. It seems like I must be missing some simple and
obvious way to turn the DHCP client off. But if it's down the
/etc/rc.d/init.d/network rabbit hole, I haven't found it yet.
Any help would be much appreciated. I'm looking forward to moving on
past this one. 
Thanks,
Kevin
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| Jean-David Beyer 2005-07-16, 7:45 am |
| heybrakywacky@hotmail.com wrote:
> I'm running a RedHat 9 system, and I'm trying to configure its primary
> network interface (eth0) to have a static IP address. I run 'setup',
> configure all of the proper settings under 'Network Configuration' (to
> my knowledge), and verify the contents of
> /etc/sysconfig/network-scripts/ifcfg-eth0:
>
> DEVICE=eth0
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=192.168.8.15
> NETMASK=255.255.255.0
> GATEWAY=192.168.8.1
>
> But if I do a network restart (or even a reboot, for that matter),
> whenever the eth0 interface comes back up, it keeps querying my DHCP
> server for its settings, and configuring the interface as such.
>
> Am I missing a configuration step? I've tried various things like
> getting rid of the dhclient-eth0.leases file and dropping the lease
> before resetting the network, but I can't find any combination that
> will solve my problem. It seems like I must be missing some simple and
> obvious way to turn the DHCP client off. But if it's down the
> /etc/rc.d/init.d/network rabbit hole, I haven't found it yet.
>
> Any help would be much appreciated. I'm looking forward to moving on
> past this one.
>
> Thanks,
> Kevin
>
Here is mine from a RHL 9 system:
DEVICE=eth0
BOOTPROTO=none
BROADCAST=192.168.1.255
IPADDR=192.168.1.2
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
HWADDR=00:75:27:21:12:75
USERCTL=no
PEERDNS=no
GATEWAY=192.168.1.1
TYPE=Ethernet
--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ PGP-Key: 9A2FC99A Registered Machine 241939.
/( )\ Shrewsbury, New Jersey http://counter.li.org
^^-^^ 06:25:00 up 31 days, 17 min, 4 users, load average: 5.21, 5.18, 4.95
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| Allen McIntosh 2005-07-16, 5:46 pm |
| > DEVICE=eth0
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=192.168.8.15
> NETMASK=255.255.255.0
> GATEWAY=192.168.8.1
This all looks fine.
> Am I missing a configuration step? I've tried various things like
> getting rid of the dhclient-eth0.leases file and dropping the lease
> before resetting the network, but I can't find any combination that
> will solve my problem. It seems like I must be missing some simple and
> obvious way to turn the DHCP client off. But if it's down the
> /etc/rc.d/init.d/network rabbit hole, I haven't found it yet.
One possible problem is that the script exists in three places down said
rabbit hole:
$ pwd
/etc/sysconfig
$ find . -name ifcfg-eth0 -print | xargs ls -l
-rw-r--r-- 3 root root 145 Dec 22 2004
../network-scripts/ifcfg-eth0
-rw-r--r-- 3 root root 145 Dec 22 2004
../networking/devices/ifcfg-eth0
-rw-r--r-- 3 root root 145 Dec 22 2004
../networking/profiles/default/ifcfg-eth0
If the links are broken on your machine, you could have edited the wrong
script.
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| heybrakywacky@hotmail.com 2005-07-16, 5:46 pm |
| Eureka! network-scripts/ifcfg-eth0 and
networking/profiles/default/ifcfg-eth0 were both right, but
networking/devices/ifcfg-eth0 was still pointing to DHCP. I changed it
to be the same as the other two, reset the network, and my changes took
effect.
Thanks for your help!
Kevin
Allen McIntosh wrote:
>
>
> One possible problem is that the script exists in three places down said
> rabbit hole:
>
> $ pwd
> /etc/sysconfig
> $ find . -name ifcfg-eth0 -print | xargs ls -l
> -rw-r--r-- 3 root root 145 Dec 22 2004
> ./network-scripts/ifcfg-eth0
> -rw-r--r-- 3 root root 145 Dec 22 2004
> ./networking/devices/ifcfg-eth0
> -rw-r--r-- 3 root root 145 Dec 22 2004
> ./networking/profiles/default/ifcfg-eth0
>
> If the links are broken on your machine, you could have edited the wrong
> script.
| |
| Allen McIntosh 2005-07-16, 8:45 pm |
| > I changed it
> to be the same as the other two, reset the network, and my changes took
> effect.
It's not clear from this statement whether or not all three are now
links to the same file. If you use RedHat's GUI tools at all, you
should make sure they are, lest something get messed up again. Even if
you don't use the GUI tools, it's easier than having to remember to
change multiple files.
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