I think that you want to create /etc/dhclient-enter-hooks
with this, for more info do a search on dhclient-enter-hooks
# vi /etc/dhclient-enter-hooks
make_resolv_conf(){
:
}
Pete
On 08/27/15 15:36, George wrote:
> given machine with C6 x86_64 (seen on C 6.6 but also before and
> probably still present on C6.7) only 1 interface, there is dhcp on
> this network (for kickstarting) but the machines have static ip's, and
> NO networkmanager installed
>
> contents of resolv.conf
> search some.domain.here
> nameserver x.x.x.x #dns1
> nameserver y.y.y.y #dns2
>
> change resolv.conf to:
> search some.newdomain.here
> nameserver z.z.z.z #dns3
> nameserver a.a.a.a #dns4
>
> reboot machine and the contents of resolv.conf is again:
> search some.domain.here
> nameserver x.x.x.x #dns1
> nameserver y.y.y.y #dns2
>
> change it again to:
> search some.newdomain.here
> nameserver z.z.z.z #dns3
> nameserver a.a.a.a #dns4
> reboot again
> now it stick to the last update.
>
> Already tried to set /etc/sysconfig/network-scripts/ifcfg-eth0
> NM_controlled=no
> with no result
> other suggestions around the internet suggest also to set in
> /etc/sysconfig/network-scripts/ifcfg-eth0
> usepeerdns=no
> have not tried this but should check if this fixes stuff.
>
> Question: can someone explain me WHY this would help if it does and if
> this a valid entry in /etc/sysconfig/network ?
> since I don't want to go over all my machines (a couple thousand)
> figuring out how many interfaces they have and what their names are to
> reconfigure that for each interface (some even suggest this should be
> done for lo too).
>
> See also dozens of questions like that using google:
> https://www.google.com/search?q=centos+6+overwrites+resolv.conf+reboot
>
> G.
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>
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