where is this old server listed? "Kelvin Beaton" <kelvin at mccsa dot com> 5/29/2007 4:23:28 PM I'm looking at my DHCP Server settings from my XP Pro machine, so have to Add Server, then tell it what server to add. On the Add Server screen the second option is "This authorized DHCP server" and in the list is my current DC server and my old DC that has been off for line of a year or more. This (at least for me) confirms that there is/are still references to the old server at 192.168.0.1 hanging around out there. In DNS Server manager I deleted the entry for 192.168.0.1 and the phone started ringing with people not able to connect to my SQL server.... so I put it back and the are back working.... How do I find where the refference to the old DNS server is being stored? Thanks Kelvin

RE: where is this old server listed? Rob Reynolds 5/29/2007 6:00:02 PM Hi Kelvin, Have you checked DNS? Check and see if you have an old record for this server that has been offline and delete it. "Kelvin Beaton" wrote: [Quoted Text] > I'm looking at my DHCP Server settings from my XP Pro machine, so have to > Add Server, then tell it what server to add. > On the Add Server screen the second option is "This authorized DHCP server" > and in the list is my current DC server and my old DC that has been off for > line of a year or more. > > This (at least for me) confirms that there is/are still references to the > old server at 192.168.0.1 hanging around out there. > > In DNS Server manager I deleted the entry for 192.168.0.1 and the phone > started ringing with people not able to connect to my SQL server.... so I > put it back and the are back working.... > > How do I find where the refference to the old DNS server is being stored? > > Thanks > > Kelvin > > >

Re: where is this old server listed? "Kelvin Beaton" <kelvin at mccsa dot com> 5/29/2007 6:48:05 PM Hi Rob, thanks for the reply... Could you be more specific about where I could check this? I delete the record for the old server in the DHCP server and that seemed to cause problems. Users started to call saying they had lost conntection to my SQL server... I see a menu option Action\Clear Cache, isn't that cashe file at C:\WINDOWS\system32\dns\cache.dns? Is this where the cache is stored if I'm running AD? If so the file only has the default DNS entries. I'm guessing AD is storing the info somewhere else... Would running "Action\Clear Cache" be a good idea? Thanks Kelvin "Rob Reynolds" <RobReynolds[ at ]discussions.microsoft.com> wrote in message news:92793A82-3F3F-45C2-A325-CE6308289A67[ at ]microsoft.com... [Quoted Text] > Hi Kelvin, > > Have you checked DNS? Check and see if you have an old record for this > server that has been offline and delete it. > > > > "Kelvin Beaton" wrote: > >> I'm looking at my DHCP Server settings from my XP Pro machine, so have to >> Add Server, then tell it what server to add. >> On the Add Server screen the second option is "This authorized DHCP >> server" >> and in the list is my current DC server and my old DC that has been off >> for >> line of a year or more. >> >> This (at least for me) confirms that there is/are still references to the >> old server at 192.168.0.1 hanging around out there. >> >> In DNS Server manager I deleted the entry for 192.168.0.1 and the phone >> started ringing with people not able to connect to my SQL server.... so I >> put it back and the are back working.... >> >> How do I find where the refference to the old DNS server is being stored? >> >> Thanks >> >> Kelvin >> >> >>

Re: where is this old server listed? Rob Reynolds 5/30/2007 12:37:01 PM I am referring to your forward lookup zone. Check there and see if you have a A record for this server that is no longer online. When you removed that server, did you deauthorize the DHCP server that was installed on it? Let me know what you find. "Kelvin Beaton" wrote: [Quoted Text] > Hi Rob, thanks for the reply... > > Could you be more specific about where I could check this? > > I delete the record for the old server in the DHCP server and that seemed to > cause problems. > Users started to call saying they had lost conntection to my SQL server... > I see a menu option Action\Clear Cache, isn't that cashe file at > C:\WINDOWS\system32\dns\cache.dns? > Is this where the cache is stored if I'm running AD? If so the file only has > the default DNS entries. > I'm guessing AD is storing the info somewhere else... > Would running "Action\Clear Cache" be a good idea? > > Thanks > > Kelvin > > > "Rob Reynolds" <RobReynolds[ at ]discussions.microsoft.com> wrote in message > news:92793A82-3F3F-45C2-A325-CE6308289A67[ at ]microsoft.com... > > Hi Kelvin, > > > > Have you checked DNS? Check and see if you have an old record for this > > server that has been offline and delete it. > > > > > > > > "Kelvin Beaton" wrote: > > > >> I'm looking at my DHCP Server settings from my XP Pro machine, so have to > >> Add Server, then tell it what server to add. > >> On the Add Server screen the second option is "This authorized DHCP > >> server" > >> and in the list is my current DC server and my old DC that has been off > >> for > >> line of a year or more. > >> > >> This (at least for me) confirms that there is/are still references to the > >> old server at 192.168.0.1 hanging around out there. > >> > >> In DNS Server manager I deleted the entry for 192.168.0.1 and the phone > >> started ringing with people not able to connect to my SQL server.... so I > >> put it back and the are back working.... > >> > >> How do I find where the refference to the old DNS server is being stored? > >> > >> Thanks > >> > >> Kelvin > >> > >> > >> > > >

Re: where is this old server listed? Rob Reynolds 5/30/2007 12:50:02 PM One other thing. Can you ping the old IP address and if so what is it assigned to? I would also identify what DHCP servers are available on your network and check the DHCP scope and see what DNS servers are being assigned to the affected clients. If you say your SQL users can connect to SQL until you delete the record, then something lives at that IP address......Keep me posted! :) "Kelvin Beaton" wrote: [Quoted Text] > Hi Rob, thanks for the reply... > > Could you be more specific about where I could check this? > > I delete the record for the old server in the DHCP server and that seemed to > cause problems. > Users started to call saying they had lost conntection to my SQL server... > I see a menu option Action\Clear Cache, isn't that cashe file at > C:\WINDOWS\system32\dns\cache.dns? > Is this where the cache is stored if I'm running AD? If so the file only has > the default DNS entries. > I'm guessing AD is storing the info somewhere else... > Would running "Action\Clear Cache" be a good idea? > > Thanks > > Kelvin > > > "Rob Reynolds" <RobReynolds[ at ]discussions.microsoft.com> wrote in message > news:92793A82-3F3F-45C2-A325-CE6308289A67[ at ]microsoft.com... > > Hi Kelvin, > > > > Have you checked DNS? Check and see if you have an old record for this > > server that has been offline and delete it. > > > > > > > > "Kelvin Beaton" wrote: > > > >> I'm looking at my DHCP Server settings from my XP Pro machine, so have to > >> Add Server, then tell it what server to add. > >> On the Add Server screen the second option is "This authorized DHCP > >> server" > >> and in the list is my current DC server and my old DC that has been off > >> for > >> line of a year or more. > >> > >> This (at least for me) confirms that there is/are still references to the > >> old server at 192.168.0.1 hanging around out there. > >> > >> In DNS Server manager I deleted the entry for 192.168.0.1 and the phone > >> started ringing with people not able to connect to my SQL server.... so I > >> put it back and the are back working.... > >> > >> How do I find where the refference to the old DNS server is being stored? > >> > >> Thanks > >> > >> Kelvin > >> > >> > >> > > >

Re: where is this old server listed? "Kelvin Beaton" <kelvin at mccsa dot com> 6/1/2007 7:13:00 PM The server called Monter used to be at IP address 192.168.0.1. It was our old DC and ran DHCP and DNS etc. No, I can't ping it, I double checked. The power is off on that box and nothing else on the network is using that address nor that name. Not real sure what you mean by this "When you removed that server, did you deauthorize the DHCP server that was installed on it?" I'm guessing the answer is yes. I had someone else helping me with this task, and it was a year or so ago that I was taking the old server off line. Is this something I can check or test for at this time? Maybe I should remove the entry and restart the PC's and see they function at that point... Or I can just leave that entry there and try and forget about it. It's a bit nagging though that PC's areaffected by removing the entry............ I'm tending to lean towards leaving sleeping dogs lie... Thanks Kelvin "Rob Reynolds" <RobReynolds[ at ]discussions.microsoft.com> wrote in message news:0EA5DCC8-10D4-4290-A7BE-C114FD35176B[ at ]microsoft.com... [Quoted Text] > One other thing. Can you ping the old IP address and if so what is it > assigned to? I would also identify what DHCP servers are available on > your > network and check the DHCP scope and see what DNS servers are being > assigned > to the affected clients. If you say your SQL users can connect to SQL > until > you delete the record, then something lives at that IP address......Keep > me > posted! :) > > "Kelvin Beaton" wrote: > >> Hi Rob, thanks for the reply... >> >> Could you be more specific about where I could check this? >> >> I delete the record for the old server in the DHCP server and that seemed >> to >> cause problems. >> Users started to call saying they had lost conntection to my SQL >> server... >> I see a menu option Action\Clear Cache, isn't that cashe file at >> C:\WINDOWS\system32\dns\cache.dns? >> Is this where the cache is stored if I'm running AD? If so the file only >> has >> the default DNS entries. >> I'm guessing AD is storing the info somewhere else... >> Would running "Action\Clear Cache" be a good idea? >> >> Thanks >> >> Kelvin >> >> >> "Rob Reynolds" <RobReynolds[ at ]discussions.microsoft.com> wrote in message >> news:92793A82-3F3F-45C2-A325-CE6308289A67[ at ]microsoft.com... >> > Hi Kelvin, >> > >> > Have you checked DNS? Check and see if you have an old record for this >> > server that has been offline and delete it. >> > >> > >> > >> > "Kelvin Beaton" wrote: >> > >> >> I'm looking at my DHCP Server settings from my XP Pro machine, so have >> >> to >> >> Add Server, then tell it what server to add. >> >> On the Add Server screen the second option is "This authorized DHCP >> >> server" >> >> and in the list is my current DC server and my old DC that has been >> >> off >> >> for >> >> line of a year or more. >> >> >> >> This (at least for me) confirms that there is/are still references to >> >> the >> >> old server at 192.168.0.1 hanging around out there. >> >> >> >> In DNS Server manager I deleted the entry for 192.168.0.1 and the >> >> phone >> >> started ringing with people not able to connect to my SQL server.... >> >> so I >> >> put it back and the are back working.... >> >> >> >> How do I find where the refference to the old DNS server is being >> >> stored? >> >> >> >> Thanks >> >> >> >> Kelvin >> >> >> >> >> >> >> >> >>