On Mon, Jun 15, 2015 at 1:40 PM, Kurt Buff <[email protected]> wrote: > Is anyone in your environment manually initiating scavenging?
No. >Does the SolarWinds product do that? Dunno. We did turn off the DNS integration, and reset the zone transfer back to name server tab servers only ... > I know that it's easy to knock out static DNS records doing that - I > presume it's possible to knock out registered records as well. > > Kurt > > On Mon, Jun 15, 2015 at 9:45 AM, Michael Leone <[email protected]> wrote: >> On Mon, Jun 15, 2015 at 12:28 PM, Susan Bradley <[email protected]> wrote: >>> I haven't met an HP server that doesn't natively ship with Broadcom nics >>> even though they are called HP network cards. >>> >>> You sure those suckers aren't evil Broadcoms? >> >> >> Dunno, I didn't set up the hardware, one of the other guys did, I just >> dcpromo'ed it. i suppose they could be ... one of them is a blade, >> using their "FlexFabric 10G 2 port 534FLB" adapter. >> >> I rolled out the VMs. >> >> All the servers that dropped out of DNS all point to DC#5 (VM) and >> DC#6 (HP physical, the blade mentioned above). >> As a specific example: >> >> DWB019 has a static IP address, and the above 2 servers as it's DNS >> settings. No manually created A records created in DNS, we just let it >> register. Up until this morning, all was well. >> (last Thu, we changed the DNS settings to point to #5 and #6, it's >> current DNS settings (both Win2012 R2), from the older DC#1 and #3 - a >> physical and virtual Win2008 R2. Did not reboot, flush DNS, etc - we >> just changed the DNS settings on the NIC) >> >> DC #5 and DC #6 have been DCs for the last 2-3 weeks, and have been >> DNS servers. We just hadn't pointed any clients directly at them, to >> use as their DNS settings on their NICs. >> >> This morning, there is no record of DWB19 in DNS at all. I go to >> DWB019, open an elevated command prompt, do "ipcofig /registerdns", >> and then there is a record in DNS, timestamped this morning at 10AM. >> >> So why did it drop out of DNS over the weeked? And why didn't it renew >> itself, especially if a manual register works just fine? >> And how do I stop it from doing that again? >> >> >> >> >>> >>> MS wants feedback on patching: http://tinyurl.com/patchingsurvey >>> On 6/15/2015 9:18 AM, Michael Leone wrote: >>>> >>>> On Mon, Jun 15, 2015 at 11:59 AM, Susan Bradley <[email protected]> >>>> wrote: >>>>> >>>>> Virtual or real metal? >>>> >>>> Both. 2 virtual, 4 physical. :-) The "main" DNS server, the ones >>>> almost all the servers point at (and therefore should be registering >>>> with), is virtual. The physicals are 2 Dell and 2 HP boxes. >>>> >>>>> Nics are Intel or Evil Broadcoms (TM)? >>>> >>>> The virtuals are all vmxnet3, the Dell physicals have teamed Broadcom >>>> NICs and the HP has their NIC teamed. >>>> >>>>> (if virtual and if Evil Broadcoms (TM) ensure you have disabled rss/toe >>>>> and >>>>> VMQ on the parent) >>>> >>>> The parent. You mean on the vmhost? Ours is VMware 5.5 U2, running on >>>> HP hardware, so they aren't using Broadcom NICs.. >>>> >>>> >>>> >>> >>> >>> >> >> > >
