DNS on 2008R2
Anyone tell me why 2 AD DNS servers that were running perfectly find would suddenly stop doing all recursive queries outside of the network. I had to run this dnscmd /config /EnableEDNSProbes 0 which apparently disables larger UDP packets, but I am trying to find out if there was an recent update that would have caused this, or someone who is not supposed to be playing with the servers is being a bad boy. Drove me nuts for 2 days until I stumbled upon a thread that recommended trying that cmd and it fixed it immediately after I ran it on both servers. Thx Greg ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
RE: DNS on 2008R2
BTW their was no firewall change, same one that has been in their for 6 months at least. From: greg.swe...@actsconsulting.net [mailto:greg.swe...@actsconsulting.net] Sent: Friday, October 08, 2010 10:49 AM To: NT System Admin Issues Subject: DNS on 2008R2 Anyone tell me why 2 AD DNS servers that were running perfectly find would suddenly stop doing all recursive queries outside of the network. I had to run this dnscmd /config /EnableEDNSProbes 0 which apparently disables larger UDP packets, but I am trying to find out if there was an recent update that would have caused this, or someone who is not supposed to be playing with the servers is being a bad boy. Drove me nuts for 2 days until I stumbled upon a thread that recommended trying that cmd and it fixed it immediately after I ran it on both servers. Thx Greg ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.commailto:listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
Re: DNS on 2008R2
Are you using forwarders? Have they been changed? Our older version Cisco Network Registrar goes bonkers if I dont disable EDNS Probes on the 2008R2 dc's that forward to it. -Anders On Fri, Oct 8, 2010 at 4:48 PM, greg.swe...@actsconsulting.net wrote: Anyone tell me why 2 AD DNS servers that were running perfectly find would suddenly stop doing all recursive queries outside of the network. I had to run this “dnscmd /config /EnableEDNSProbes 0” which apparently disables larger UDP packets, but I am trying to find out if there was an recent update that would have caused this, or someone who is not supposed to be playing with the servers is being a bad boy. Drove me nuts for 2 days until I stumbled upon a thread that recommended trying that cmd and it fixed it immediately after I ran it on both servers. Thx Greg ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
