http://www.ISAserver.org ------------------------------------------------------- Ahh....excellent call DR Shinder..... -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of ISA Sent: Wednesday, October 18, 2006 4:38 PM To: ISA Mailing List Subject: [isalist] OT: DNS and Forwarders http://www.ISAserver.org ------------------------------------------------------- Tom: I've been sitting here trying to come up with a 'half lie' to hide that fact. I can't. You are correct; PIX501. This is why you are the Professor. However - I will note that it was pre-existing and that I have no opportunity at this time to get the small client to switch it out. Please don't hate me, I'm ugly, poor and hungry. Joe -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thomas W Shinder Posted At: Wednesday, October 18, 2006 3:27 PM Posted To: ISA Conversation: [isalist] OT: DNS and Forwarders Subject: [isalist] Re: OT: DNS and Forwarders http://www.ISAserver.org ------------------------------------------------------- Hi Joseph, Is there a cr*pware firewall like a PIX in front of the ISA Firewall? That would be the scenario where EDNS might be an issue. Thomas W Shinder, M.D. Site: www.isaserver.org Blog: http://blogs.isaserver.org/shinder/ Book: http://tinyurl.com/3xqb7 MVP -- Microsoft Firewalls (ISA) > -----Original Message----- > From: isalist-bounce@xxxxxxxxxxxxx > [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of ISA > Sent: Wednesday, October 18, 2006 2:14 PM > To: isalist@xxxxxxxxxxxxx > Subject: [isalist] OT: DNS and Forwarders > > http://www.ISAserver.org > ------------------------------------------------------- > > Thanks again for the help. > > So, I called MS PPS because the DNS issue continued regardless of > configuration - > > Microsoft (Manuj) suggested that the problem is probably: (EDNS). They > shut it off for now and gave me two MS DNS servers to use as > forwarders. > > Joseph F. Danielsen, > MCSA - Exchange Messaging Specialist, MCP > Network Blade Inc. > 49 Marcy Street > Somerset, NJ 08873 > 732-213-0600 > www.networkblade.com > > > > > > > -----Original Message----- > From: isalist-bounce@xxxxxxxxxxxxx > [mailto:isalist-bounce@xxxxxxxxxxxxx] > On Behalf Of Thomas W Shinder > Posted At: Wednesday, October 18, 2006 2:01 PM > Posted To: ISA > Conversation: [isalist] Re: OT: DNS and Forwarders > Subject: [isalist] Re: OT: DNS and Forwarders > > http://www.ISAserver.org > ------------------------------------------------------- > > The T-Man is definitely right about this. > > Thomas W Shinder, M.D. > Site: www.isaserver.org > Blog: http://blogs.isaserver.org/shinder/ > Book: http://tinyurl.com/3xqb7 > MVP -- Microsoft Firewalls (ISA) > > > > > -----Original Message----- > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thor > > (Hammer of God) > > Sent: Wednesday, October 18, 2006 12:52 PM > > To: isalist@xxxxxxxxxxxxx > > Subject: [isalist] Re: OT: DNS and Forwarders > > > > http://www.ISAserver.org > > ------------------------------------------------------- > > > > Why do your internal clients need to resolve DNS directly? I > > never ever use > > forwarders on my AD boxes. I always create root zones on my > > AD DNS servers > > and only use ISA to resolve DNS for web proxy/fw clients. > > > > That's where what I consider "true" security and separation > > comes from. > > > > t > > > > > > On 10/18/06 9:13 AM, "ISA" <ISA@xxxxxxxxxxxxxxxx> spoketh to all: > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > > > > This actually has happened with and without forwarders - > > > > > > Steve, I interpret your suggestion as using only the Root Hints? > > > > > > > > > > > > Joseph Danielsen, MCSA-Messaging, MCP > > > > > > Network Blade Inc. > > > > > > 49 Marcy Street > > > > > > Somerset, NJ 08873 > > > > > > 732-213-0600 > > > > > > www.networkblade.com > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of Steve Moffat > > > Posted At: Wednesday, October 18, 2006 12:08 PM > > > Posted To: ISA > > > Conversation: [isalist] Re: OT: DNS and Forwarders > > > Subject: [isalist] Re: OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > FWIW.....I have 2 caching only DNS Servers that I setup to use as > > > forwarders for my AD DNS Servers, when I use them, I get > > the very same > > > issue. If I however, remove them from the forwarders > > section, I have no > > > DNS Issues at all whatsoever, anytime. > > > > > > S > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of ISA > > > Sent: Wednesday, October 18, 2006 1:03 PM > > > To: ISA Mailing List > > > Subject: [isalist] Re: OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > Thanks Mike: > > > > > > I will try clearing the cache - but this happens now > about everyday > > > (morning usually). I really have to find the source of > the problem. > > > > > > > > > > > > Joseph Danielsen, MCSA-Messaging, MCP > > > > > > Network Blade Inc. > > > > > > 49 Marcy Street > > > > > > Somerset, NJ 08873 > > > > > > 732-213-0600 > > > > > > www.networkblade.com > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of Michael Ross > > > Posted At: Wednesday, October 18, 2006 12:01 PM > > > Posted To: ISA > > > Conversation: [isalist] OT: DNS and Forwarders > > > Subject: [isalist] Re: OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > Windows 2003 DNS servers? > > > Believe it or not, ive seen that . It's a cache pollution type of > > > behavior, with no logging or other signs to prove that. > > > Try to clear the DNS cache next time and see if it helps. > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of ISA > > > Sent: Wednesday, October 18, 2006 10:59 AM > > > To: isalist@xxxxxxxxxxxxx > > > Subject: [isalist] OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > Steve: Funny you should say that because I've done that a > few times. > > > > > > DNS stops - I removed the forwards - Restart DNS - DNS works. > > > DNS stops - I change the forwards - Restart DNS - DNS works. > > > > > > I want to blame my server but I'm just not sure where the > > failure is. > > > > > > > > > > > > Joseph Danielsen, MCSA-Messaging, MCP > > > > > > Network Blade Inc. > > > > > > 49 Marcy Street > > > > > > Somerset, NJ 08873 > > > > > > 732-213-0600 > > > > > > www.networkblade.com > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of Steve Moffat > > > Posted At: Wednesday, October 18, 2006 11:55 AM Posted To: ISA > > > Conversation: [isalist] OT: DNS and Forwarders > > > Subject: [isalist] Re: OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > Remove the forwarders.....then see how fast your Internet speed > > > gets...:) > > > > > > S > > > > > > -----Original Message----- > > > From: isalist-bounce@xxxxxxxxxxxxx > > [mailto:isalist-bounce@xxxxxxxxxxxxx] > > > On Behalf Of ISA > > > Sent: Wednesday, October 18, 2006 12:49 PM > > > To: ISA Mailing List > > > Subject: [isalist] OT: DNS and Forwarders > > > > > > http://www.ISAserver.org > > > ------------------------------------------------------- > > > > > > Hello All - > > > > > > This might be off-topic, but has anyone every had their > > Windows DNS/DC > > > server intermittently stop forwarding DNS requests? > > > > > > I checked with the ISP and they don't recognize and > > problems on their > > > end. > > > > > > JD > > > ------------------------------------------------------ > > > List Archives: //www.freelists.org/archives/isalist/ > > > ISA Server Newsletter: > http://www.isaserver.org/pages/newsletter.asp > > > ISA Server Articles and Tutorials: > > > http://www.isaserver.org/articles_tutorials/ > > > ISA Server Blogs: http://blogs.isaserver.org/ > > > ------------------------------------------------------ > > > Visit TechGenix.com for more information about our other sites: > > > http://www.techgenix.com > > > ------------------------------------------------------ > > > To unsubscribe visit http://www.isaserver.org/pages/isalist.asp > > > Report abuse to listadmin@xxxxxxxxxxxxx > > > > > > 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