Remove any settings about dns from the network manager adn the /etc/resolv.conf won't be auto generated.
https://ma.ttias.be/centos-7-networkmanager-keeps-overwriting-etcresolv-conf/ Peter On 16/03/2018 02:15, Kirin van der Veer wrote: > Ďakujem Peter, but this doesn't seem to work in my case. > /etc/resolv.conf is regenerated by Network Manager after a reboot > and my domain settings are lost. Your comments regarding the > reliance on DNS make sense for most installations, but in my case > oVirt is a secondary service that I would not expect to run unless > our core infrastructure is working correctly. I'm hesitant to edit > /etc/hosts directly, since that can lead to confusion when the > underlying IP addresses change. For now I will hardcode the IPs of > my servers. It's frustrating (and surprising) that there is not an > easy way to do this. > > Kirin. > > On Thu, Mar 15, 2018 at 5:17 PM, Peter Hudec <[email protected] > <mailto:[email protected]>> wrote: > > Hi Kirin, > > I suggest to do it old way and edit the /etc/resolv.conf manually. > > And one advice. Do not relay on the DNS on infrastructure servers. > Use /etc/hosts. If he DNS will not be accessible, you will have > problem to put it infrastructure up/working. As side effect the > hosts allow you to use short names to access servers. > > If you are ansible positive, you could use > > hudecof.resolv https://galaxy.ansible.com/hudecof/resolv/ > <https://galaxy.ansible.com/hudecof/resolv/> hudecof.hosts > https://galaxy.ansible.com/hudecof/hosts/ > <https://galaxy.ansible.com/hudecof/hosts/> > > > Peter > > On 15/03/2018 06:03, Kirin van der Veer wrote: >> Hi oVirt people, I have setup a new cluster consisting of many >> oVirt Nodes with a single dedicated oVirt Engine machine. For >> the most part things are working, however despite entering the >> DNS search domain during install on the Nodes the management >> interface is not aware of my search domain and it has not been >> added to /etc/resolv.conf (perhaps that is unnecessary?). I >> eventually worked out that the DNS search domain should be >> included in /etc/sysconfig/network-scripts/ifcfg-ovirtmgmt >> However as per the header/warning, that file is generated by >> VDSM. I assumed that I should be able to edit the search domain >> with vdsClient, but when I run "vdsClient -m" I don't see any >> options related to network config. I found the following page on >> DNS config: >> > https://www.ovirt.org/develop/release-management/features/network/allowExplicitDnsConfiguration/ > > <https://www.ovirt.org/develop/release-management/features/network/allowExplicitDnsConfiguration/> >> >> > But it does not seem to offer a way of specifying the DNS search > domain >> (other than perhaps directly editing /etc/resolv.conf - which is >> generated/managed by Network Manager). nmcli reports that all of >> my interfaces (including ovirtmgmt) are "unmanaged". Indeed when >> I attempt to run nmtui there is nothing listed to configure. >> This should be really simple! I just want to add my local search >> domain so I can use the short name for my NFS server. I'd >> appreciate any advice. >> >> Thanks in advance, Kirin. >> >> >> . >> >> *IMPORTANT NOTE. *If you are NOT AN AUTHORISED RECIPIENT of this >> e-mail, please contact Planet Innovation Pty Ltd by return >> e-mail or by telephone on +613 9945 7510 >> <tel:%2B613%209945%207510>. In > this case, you should not >> read, print, re-transmit, store or act in reliance on this >> e-mail or any attachments, and should destroy all copies of them. >> This e-mail and any attachments are confidential and may contain >> legally privileged information and/or copyright material of >> Planet Innovation Pty Ltd or third parties. You should only >> re-transmit, distribute or commercialise the material if you are >> authorised to do so. Although we use virus scanning software, we >> deny all liability for viruses or alike in any message or >> attachment. 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