On 05/13/2011 05:03 PM, Alex wrote:
> Hi,
>
> On Wed, May 11, 2011 at 10:45 AM, JB <jb.1234abcd@xxxxxxxxx> wrote:
>> The results of scan for UUID:
>>
>> # grep -ir uuid /etc/init.d/
>> /etc/init.d/messagebus: /bin/dbus-uuidgen --ensure
>>
>> The above relates to machine-id.
>>
>> # grep -ir uuid /etc/sysconfig/
>> /etc/sysconfig/network-scripts/ifup:if [ "$USE_NM" = "true" -a -n "$UUID" ];
>> then
>> /etc/sysconfig/network-scripts/ifup: nmcli con up uuid "$UUID"
>> /etc/sysconfig/network-scripts/ifdown: if [ -n "$UUID" -a -z "$DEVICE" ];
>> then
>> /etc/sysconfig/network-scripts/ifdown: DEVICE=$(nmcli -t --fields uuid,devices
>> con status | awk -F ':' "\$1 == \"$UUID\" { print \$2 }")
>> /etc/sysconfig/network-scripts/network-functions:get_uuid_by_config ()
>> /etc/sysconfig/network-scripts/network-functions: if [ -z "$UUID" -a
>> "$USE_NM" = "true" ]; then
>> /etc/sysconfig/network-scripts/network-functions:
>> UUID=$(get_uuid_by_config $CONFIG)
> [snip..]
>
> Yes, it does appear that much of that file is for the purpose of
> NetworkManager, which I'm not using. I was just concerned about the
> interfaces somehow getting switched, such as from a kernel upgrade or
> some kind of module loading race.
>
> In any case, thanks for your help, as always. It appears to be
> reliable now, but I'll continue to search for possible ways to
> permanently bind an IP to an interface without using NetworkManager.
If you're not using NM, then all you really need in an ifcfg-ethX file
is:
DEVICE=ethX
HWADDR=xx:xx:xx:xx:xx:xx
BOOTPROTO=static
IPADDR=xxx.xxx.xxx.xxx
NETMASK=xxx.xxx.xxx.xxx
DNS1=xxx.xxx.xxx.xxx
DNS2=xxx.xxx.xxx.xxx
ONBOOT=yes
NM_CONTROLLED=no
The HWADDR thing will tie the config to a specific NIC and bypasses
what the kernel determines is ethX. The DNS stuff is optional as well,
and simply gets stuffed into your /etc/resolv.conf file (if it's empty).
You can also specify "GATEWAY=" to specify the gateway for the machine,
although normally that's in the /etc/sysconfig/network file.
This should work whether or not NM is running. The "NM_CONTROLLED=no"
stuff SHOULD tell NM to "keep yer mitts off this!" If you really never
use NM (e.g. the machine is a server), then you should also:
chkconfig NetworkManager off
chkconfig network on
This should prevent NM from starting on the next reboot and use the
good old normal networking scripts.
Now, if we could just get the NM people to write a bloody manual, we'd
be SO much better off. I've offered to do it and was greeted by a stony
silence at their end.
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, C2 Hosting ricks@xxxxxxxx -
- AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 -
- -
- Microsoft Windows: Proof that P.T. Barnum was right -
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