http://www.ISAserver.org ------------------------------------------------------- You really don't want to clear the cache unless you absolutely need to. You'll see a noticble slow down because DNS queries will have to be reissued before their configured TTL. 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 11:11 AM > To: isalist@xxxxxxxxxxxxx > Subject: [isalist] Re: OT: DNS and Forwarders > > http://www.ISAserver.org > ------------------------------------------------------- > > Mike: > > <Clearing Cache> It that a bat file that you run using > scheduled tasks? > Can you share the commands in it with me? > > OK that sounded desparate, but I'll take it anyway :) > > > 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 12:08 PM > Posted To: ISA > Conversation: [isalist] Re: OT: DNS and Forwarders > Subject: [isalist] Re: OT: DNS and Forwarders > > http://www.ISAserver.org > ------------------------------------------------------- > > I think it's a bug in 2003's DNS.. They have the "cache pollution > protection" tick box, but personally I don't think it works. > I created a job that runs every day that clears the cache on the > server(s) affected. > > -----Original Message----- > From: isalist-bounce@xxxxxxxxxxxxx > [mailto:isalist-bounce@xxxxxxxxxxxxx] > On Behalf Of ISA > Sent: Wednesday, October 18, 2006 11:03 AM > To: isalist@xxxxxxxxxxxxx > 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 > 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