| Summary: | Network Manager deletes DNS when private network downed. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Travis Gummels <tgummels> |
| Component: | NetworkManager | Assignee: | Dan Williams <dcbw> |
| Status: | CLOSED NOTABUG | QA Contact: | Desktop QE <desktop-qa-list> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.1 | CC: | jrb, tpelka |
| Target Milestone: | rc | ||
| Target Release: | 6.2 | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-08-16 14:44:06 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Bug Depends On: | |||
| Bug Blocks: | 756082, 782183, 787802, 840699 | ||
|
Description
Travis Gummels
2011-05-26 02:59:54 UTC
Is NetworkManager allowed to control eth1 or has eth1 been excluded from NM via NM_CONTROLLED=no? The problem is that since eth0 isn't controlled by NM, there's no way to tell NM what's happening when eth0 is configured. That's the problem with a shared file like resolv.conf. If two things are touching it neither knows about the other. NM only knows about the details of things that you let it manage, so if eth0 isn't managed by NM, anything that happens with eth0 is obviously out of the control and awareness of NM. We can only realistically handle the case where (a) something is set up before NM starts and (b) NM never brings any devices up or down. But in the scenario where NM is allowed to manage some devices and not allowed to manage other devices, it has no idea about default routes or resolv.conf information of those other devices. (it's worse for DNS than routing because at least routes are tagged with an interface. DNS is global but there's no indication that a nameserver is only valid for one interface and not for another...) Is there any particular reason eth0 cannot be managed by NM? Is eth0 a bridge or vlan? This request was not resolved in time for the current release. Red Hat invites you to ask your support representative to propose this request, if still desired, for consideration in the next release of Red Hat Enterprise Linux. This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development. This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4. What ifcfg files are there in /etc/sysconfig/network-scripts? Also, can you attach /var/log/messages when the problem occurs? |