Guest David C Posted August 20, 2008 Posted August 20, 2008 The XP client machines seem to be slower accessing the internet via our 2003 server. I have the client TCP/IP settings to point to the AD server as the primary DNS IP address. When I go to access the internet, I get "Looking up www.Google.com" in lower left and there is a delay. The 2nd time I try with a different www address I get "Waiting for www.dell.com" (for example) and the page is very slow. I tested the DSL speed and all is fine with that, but it appears to be a DNS problem. Am I right? and how can I set client correctly? Thanks. p.s. I tried adding our outside (ISP) DNS as the secondary on my client and the initial internet was very fast. But I could not access our SQL server when I did that until I removed the secondary DNS. Also, we have a firewall box that is our Gateway. David
Guest Thee Chicago Wolf Posted August 20, 2008 Posted August 20, 2008 Re: DNS settings >The XP client machines seem to be slower accessing the internet via our 2003 >server. I have the client TCP/IP settings to point to the AD server as the >primary DNS IP address. When I go to access the internet, I get "Looking up >www.Google.com" in lower left and there is a delay. The 2nd time I try with >a different www address I get "Waiting for www.dell.com" (for example) and >the page is very slow. > >I tested the DSL speed and all is fine with that, but it appears to be a DNS >problem. Am I right? and how can I set client correctly? Thanks. > >p.s. I tried adding our outside (ISP) DNS as the secondary on my client and >the initial internet was very fast. But I could not access our SQL server >when I did that until I removed the secondary DNS. Also, we have a firewall >box that is our Gateway. You can do some uber DNS performance tweaking for very optimized speed on both client and server. Open notepad, past in the following: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters] "MaxNegativeCacheTtl"=dword:00000000 "MaxCacheTtl"=dword:00000e10 "NegativeSOACacheTime"=dword:00000000 "NetFailureCacheTime"=dword:00000000 Save it as dns-tweaks.reg (make sure the extension is not a .txt) so as to make importing it easy. Double-click dns-tweaks.reg to import. Reboot for the settings to take effect. Do a before and after, you'll be amazed. I use these tweaks on all 500+ clients and a few of my servers and the response and performance improvement is insane. Give it a shot and let me know how it goes. If you need to squeeze additional performance, I can give you some more tips. - Thee Chicago Wolf
Guest David C Posted August 20, 2008 Posted August 20, 2008 Re: DNS settings It only helps when I go back to a page that I was previously on. Also, if I close my browser then all web pages start up slow again. I think it has something to do with the DNS on the server, but I didn't change anything there. I am assuming the "Looking up ...." in lower left of my browser when I first open the browser means that DNS lookup is slow on the server because that is my primary DNS IP. Any other ideas? Thanks. David "Thee Chicago Wolf" <.@.> wrote in message news:q8moa41f6eqn1dg53k0vrv886ngs8pkqqj@4ax.com... > >The XP client machines seem to be slower accessing the internet via our > >2003 >>server. I have the client TCP/IP settings to point to the AD server as >>the >>primary DNS IP address. When I go to access the internet, I get "Looking >>up >>www.Google.com" in lower left and there is a delay. The 2nd time I try >>with >>a different www address I get "Waiting for www.dell.com" (for example) and >>the page is very slow. >> >>I tested the DSL speed and all is fine with that, but it appears to be a >>DNS >>problem. Am I right? and how can I set client correctly? Thanks. >> >>p.s. I tried adding our outside (ISP) DNS as the secondary on my client >>and >>the initial internet was very fast. But I could not access our SQL server >>when I did that until I removed the secondary DNS. Also, we have a >>firewall >>box that is our Gateway. > > You can do some uber DNS performance tweaking for very optimized speed > on both client and server. Open notepad, past in the following: > > > > Windows Registry Editor Version 5.00 > > [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters] > "MaxNegativeCacheTtl"=dword:00000000 > "MaxCacheTtl"=dword:00000e10 > "NegativeSOACacheTime"=dword:00000000 > "NetFailureCacheTime"=dword:00000000 > > > > Save it as dns-tweaks.reg (make sure the extension is not a .txt) so > as to make importing it easy. Double-click dns-tweaks.reg to import. > Reboot for the settings to take effect. Do a before and after, you'll > be amazed. > > I use these tweaks on all 500+ clients and a few of my servers and the > response and performance improvement is insane. Give it a shot and let > me know how it goes. If you need to squeeze additional performance, I > can give you some more tips. > > - Thee Chicago Wolf
Guest Thee Chicago Wolf Posted August 21, 2008 Posted August 21, 2008 Re: DNS settings >It only helps when I go back to a page that I was previously on. Also, if I >close my browser then all web pages start up slow again. I think it has >something to do with the DNS on the server, but I didn't change anything >there. I am assuming the "Looking up ...." in lower left of my browser when >I first open the browser means that DNS lookup is slow on the server because >that is my primary DNS IP. > >Any other ideas? Thanks. It definitely won't hurt to apply it to the server as it reversible. Since the server is doing DNS, you should do it there. The settings are much more performance tuned than default XP or Server 2003 settings could be. I'd be more surprise if you applied the tweaks to the server and it was still slow in responding, then I would say it is something else. If the server is performing DNS duties for the clients, then for sure it is caching the positive and negative DNS hits to outside sites but, as you say, the initial is quick but afterwards it gets slow. This server is on SP2 correct? You could also try applying the QueryIpAddress tweak as well but it's more of a poorman's version of the recent DNS update to remedy the DNS poisoning vulnerability. Now you said this was a DSL connection, yes? Is this a DSL modem or DSL router? If router, is it's firewall on or off? Is the server running a firewall? Do the tweak on the server as well, reboot, and see what happens. Also, the NIC driver on the server is as current as it could be, yes? - Thee Chicago Wolf
Guest Hikmat Kanaan Posted August 21, 2008 Posted August 21, 2008 Re: DNS settings Hi, IS you DNS server using forwarding to the ISP DNS or isn't trying to resolve the names it's self. My advise it should be configured to forward DNS lookup to ISP DNS server "David C" <dlchase@lifetimeinc.com> wrote in message news:#SnUDtuAJHA.524@TK2MSFTNGP06.phx.gbl... > The XP client machines seem to be slower accessing the internet via our > 2003 server. I have the client TCP/IP settings to point to the AD server > as the primary DNS IP address. When I go to access the internet, I get > "Looking up www.Google.com" in lower left and there is a delay. The 2nd > time I try with a different www address I get "Waiting for www.dell.com" > (for example) and the page is very slow. > > I tested the DSL speed and all is fine with that, but it appears to be a > DNS problem. Am I right? and how can I set client correctly? Thanks. > > p.s. I tried adding our outside (ISP) DNS as the secondary on my client > and the initial internet was very fast. But I could not access our SQL > server when I did that until I removed the secondary DNS. Also, we have a > firewall box that is our Gateway. > > David >
Guest Meinolf Weber Posted August 21, 2008 Posted August 21, 2008 Re: DNS settings Hello David, Did you setup the FORWARDERS on the DC? Please post an unedited ipconfig /all from client and DC. Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights. ** Please do NOT email, only reply to Newsgroups ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > The XP client machines seem to be slower accessing the internet via > our 2003 server. I have the client TCP/IP settings to point to the AD > server as the primary DNS IP address. When I go to access the > internet, I get "Looking up www.Google.com" in lower left and there is > a delay. The 2nd time I try with a different www address I get > "Waiting for www.dell.com" (for example) and the page is very slow. > > I tested the DSL speed and all is fine with that, but it appears to be > a DNS problem. Am I right? and how can I set client correctly? > Thanks. > > p.s. I tried adding our outside (ISP) DNS as the secondary on my > client and the initial internet was very fast. But I could not access > our SQL server when I did that until I removed the secondary DNS. > Also, we have a firewall box that is our Gateway. > > David >
Guest David C Posted August 21, 2008 Posted August 21, 2008 Re: DNS settings Where in forward lookup would I add it? As a "New Host"? Thanks. David "Hikmat Kanaan" <hikmetsalim@hotmail.com> wrote in message news:10CA3B30-8DB3-4FBF-B193-CE3487D399BC@microsoft.com... > Hi, > IS you DNS server using forwarding to the ISP DNS or isn't trying to > resolve the names it's self. > My advise it should be configured to forward DNS lookup to ISP DNS server > > "David C" <dlchase@lifetimeinc.com> wrote in message > news:#SnUDtuAJHA.524@TK2MSFTNGP06.phx.gbl... >> The XP client machines seem to be slower accessing the internet via our >> 2003 server. I have the client TCP/IP settings to point to the AD server >> as the primary DNS IP address. When I go to access the internet, I get >> "Looking up www.Google.com" in lower left and there is a delay. The 2nd >> time I try with a different www address I get "Waiting for www.dell.com" >> (for example) and the page is very slow. >> >> I tested the DSL speed and all is fine with that, but it appears to be a >> DNS problem. Am I right? and how can I set client correctly? Thanks. >> >> p.s. I tried adding our outside (ISP) DNS as the secondary on my client >> and the initial internet was very fast. But I could not access our SQL >> server when I did that until I removed the secondary DNS. Also, we have >> a firewall box that is our Gateway. >> >> David >>
Guest David C Posted August 21, 2008 Posted August 21, 2008 Re: DNS settings I looked at the ipconfig and it showed an old DNS IP from our previous ISP. I changed it on the DHCP setttings on the server and it seemed to improve it greatly. Thank you. David "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message news:ff16fb664b4e8cad17e16a480ac@msnews.microsoft.com... > Hello David, > > Did you setup the FORWARDERS on the DC? Please post an unedited ipconfig > /all from client and DC. > > Best regards > > Meinolf Weber > Disclaimer: This posting is provided "AS IS" with no warranties, and > confers no rights. > ** Please do NOT email, only reply to Newsgroups > ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > >> The XP client machines seem to be slower accessing the internet via >> our 2003 server. I have the client TCP/IP settings to point to the AD >> server as the primary DNS IP address. When I go to access the >> internet, I get "Looking up www.Google.com" in lower left and there is >> a delay. The 2nd time I try with a different www address I get >> "Waiting for www.dell.com" (for example) and the page is very slow. >> >> I tested the DSL speed and all is fine with that, but it appears to be >> a DNS problem. Am I right? and how can I set client correctly? >> Thanks. >> >> p.s. I tried adding our outside (ISP) DNS as the secondary on my >> client and the initial internet was very fast. But I could not access >> our SQL server when I did that until I removed the secondary DNS. >> Also, we have a firewall box that is our Gateway. >> >> David >> > >
Guest Meinolf Weber Posted August 22, 2008 Posted August 22, 2008 Re: DNS settings Hello David, Make sure that all machines use only the domain internal DNS. To configure the FORWARDER got to DNS management console, rightclick the server, open properties and choose the forwarders tab. Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights. ** Please do NOT email, only reply to Newsgroups ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > I looked at the ipconfig and it showed an old DNS IP from our previous > ISP. I changed it on the DHCP setttings on the server and it seemed to > improve it greatly. Thank you. > > David > "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message > news:ff16fb664b4e8cad17e16a480ac@msnews.microsoft.com... >> Hello David, >> >> Did you setup the FORWARDERS on the DC? Please post an unedited >> ipconfig /all from client and DC. >> >> Best regards >> >> Meinolf Weber >> Disclaimer: This posting is provided "AS IS" with no warranties, and >> confers no rights. >> ** Please do NOT email, only reply to Newsgroups >> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>> The XP client machines seem to be slower accessing the internet via >>> our 2003 server. I have the client TCP/IP settings to point to the >>> AD server as the primary DNS IP address. When I go to access the >>> internet, I get "Looking up www.Google.com" in lower left and there >>> is a delay. The 2nd time I try with a different www address I get >>> "Waiting for www.dell.com" (for example) and the page is very slow. >>> >>> I tested the DSL speed and all is fine with that, but it appears to >>> be a DNS problem. Am I right? and how can I set client correctly? >>> Thanks. >>> >>> p.s. I tried adding our outside (ISP) DNS as the secondary on my >>> client and the initial internet was very fast. But I could not >>> access our SQL server when I did that until I removed the secondary >>> DNS. Also, we have a firewall box that is our Gateway. >>> >>> David >>>
Guest David C Posted August 22, 2008 Posted August 22, 2008 Re: DNS settings Meinolf, Do I even need the ISP's DNS in our internal DNS settings? I already have them designated in the firewall box (Symantec Security appliance) and the servers have that IP set as the Gateway IP address. Thanks. David "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message news:ff16fb664d228cad2468baebbd5@msnews.microsoft.com... > Hello David, > > Make sure that all machines use only the domain internal DNS. To configure > the FORWARDER got to DNS management console, rightclick the server, open > properties and choose the forwarders tab. > > Best regards > > Meinolf Weber > Disclaimer: This posting is provided "AS IS" with no warranties, and > confers no rights. > ** Please do NOT email, only reply to Newsgroups > ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > >> I looked at the ipconfig and it showed an old DNS IP from our previous >> ISP. I changed it on the DHCP setttings on the server and it seemed to >> improve it greatly. Thank you. >> >> David >> "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message >> news:ff16fb664b4e8cad17e16a480ac@msnews.microsoft.com... >>> Hello David, >>> >>> Did you setup the FORWARDERS on the DC? Please post an unedited >>> ipconfig /all from client and DC. >>> >>> Best regards >>> >>> Meinolf Weber >>> Disclaimer: This posting is provided "AS IS" with no warranties, and >>> confers no rights. >>> ** Please do NOT email, only reply to Newsgroups >>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>>> The XP client machines seem to be slower accessing the internet via >>>> our 2003 server. I have the client TCP/IP settings to point to the >>>> AD server as the primary DNS IP address. When I go to access the >>>> internet, I get "Looking up www.Google.com" in lower left and there >>>> is a delay. The 2nd time I try with a different www address I get >>>> "Waiting for www.dell.com" (for example) and the page is very slow. >>>> >>>> I tested the DSL speed and all is fine with that, but it appears to >>>> be a DNS problem. Am I right? and how can I set client correctly? >>>> Thanks. >>>> >>>> p.s. I tried adding our outside (ISP) DNS as the secondary on my >>>> client and the initial internet was very fast. But I could not >>>> access our SQL server when I did that until I removed the secondary >>>> DNS. Also, we have a firewall box that is our Gateway. >>>> >>>> David >>>> > >
Guest Meinolf Weber Posted August 22, 2008 Posted August 22, 2008 Re: DNS settings Hello David, To forward DNS request the DNS server needs to know a DNS server outside your network. I think the router/firewall will not be enough. But to be sure just test it, once with forwarder and once without. Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights. ** Please do NOT email, only reply to Newsgroups ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > Meinolf, > Do I even need the ISP's DNS in our internal DNS settings? I already > have > them designated in the firewall box (Symantec Security appliance) and > the > servers have that IP set as the Gateway IP address. Thanks. > David > "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message > news:ff16fb664d228cad2468baebbd5@msnews.microsoft.com... >> Hello David, >> >> Make sure that all machines use only the domain internal DNS. To >> configure the FORWARDER got to DNS management console, rightclick the >> server, open properties and choose the forwarders tab. >> >> Best regards >> >> Meinolf Weber >> Disclaimer: This posting is provided "AS IS" with no warranties, and >> confers no rights. >> ** Please do NOT email, only reply to Newsgroups >> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>> I looked at the ipconfig and it showed an old DNS IP from our >>> previous ISP. I changed it on the DHCP setttings on the server and >>> it seemed to improve it greatly. Thank you. >>> >>> David >>> "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message >>> news:ff16fb664b4e8cad17e16a480ac@msnews.microsoft.com... >>>> Hello David, >>>> >>>> Did you setup the FORWARDERS on the DC? Please post an unedited >>>> ipconfig /all from client and DC. >>>> >>>> Best regards >>>> >>>> Meinolf Weber >>>> Disclaimer: This posting is provided "AS IS" with no warranties, >>>> and >>>> confers no rights. >>>> ** Please do NOT email, only reply to Newsgroups >>>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>>>> The XP client machines seem to be slower accessing the internet >>>>> via our 2003 server. I have the client TCP/IP settings to point >>>>> to the AD server as the primary DNS IP address. When I go to >>>>> access the internet, I get "Looking up www.Google.com" in lower >>>>> left and there is a delay. The 2nd time I try with a different >>>>> www address I get "Waiting for www.dell.com" (for example) and the >>>>> page is very slow. >>>>> >>>>> I tested the DSL speed and all is fine with that, but it appears >>>>> to be a DNS problem. Am I right? and how can I set client >>>>> correctly? Thanks. >>>>> >>>>> p.s. I tried adding our outside (ISP) DNS as the secondary on my >>>>> client and the initial internet was very fast. But I could not >>>>> access our SQL server when I did that until I removed the >>>>> secondary DNS. Also, we have a firewall box that is our Gateway. >>>>> >>>>> David >>>>>
Guest Hikmat Kanaan Posted August 22, 2008 Posted August 22, 2008 Re: DNS settings you Can find the forwarders tab at the properties of DNS server Start DNS manger --> right click server name --> select Forwards Tab --> add ISP DNS IP addrss "David C" <dlchase@lifetimeinc.com> wrote in message news:OWlfTh6AJHA.4172@TK2MSFTNGP03.phx.gbl... > Where in forward lookup would I add it? As a "New Host"? Thanks. > > David > "Hikmat Kanaan" <hikmetsalim@hotmail.com> wrote in message > news:10CA3B30-8DB3-4FBF-B193-CE3487D399BC@microsoft.com... >> Hi, >> IS you DNS server using forwarding to the ISP DNS or isn't trying to >> resolve the names it's self. >> My advise it should be configured to forward DNS lookup to ISP DNS server >> >> "David C" <dlchase@lifetimeinc.com> wrote in message >> news:#SnUDtuAJHA.524@TK2MSFTNGP06.phx.gbl... >>> The XP client machines seem to be slower accessing the internet via our >>> 2003 server. I have the client TCP/IP settings to point to the AD >>> server as the primary DNS IP address. When I go to access the internet, >>> I get "Looking up www.Google.com" in lower left and there is a delay. >>> The 2nd time I try with a different www address I get "Waiting for >>> www.dell.com" (for example) and the page is very slow. >>> >>> I tested the DSL speed and all is fine with that, but it appears to be a >>> DNS problem. Am I right? and how can I set client correctly? Thanks. >>> >>> p.s. I tried adding our outside (ISP) DNS as the secondary on my client >>> and the initial internet was very fast. But I could not access our SQL >>> server when I did that until I removed the secondary DNS. Also, we have >>> a firewall box that is our Gateway. >>> >>> David >>> > >
Guest David C Posted August 22, 2008 Posted August 22, 2008 Re: DNS settings Works perfect. Thank you. The forward DNS that was in there was defunct. Once I put our new one in things seem to be back to normal. David "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message news:ff16fb664de98cad29a125ad069@msnews.microsoft.com... > Hello David, > > To forward DNS request the DNS server needs to know a DNS server outside > your network. I think the router/firewall will not be enough. But to be > sure just test it, once with forwarder and once without. > > Best regards > > Meinolf Weber > Disclaimer: This posting is provided "AS IS" with no warranties, and > confers no rights. > ** Please do NOT email, only reply to Newsgroups > ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > >> Meinolf, >> Do I even need the ISP's DNS in our internal DNS settings? I already >> have >> them designated in the firewall box (Symantec Security appliance) and >> the >> servers have that IP set as the Gateway IP address. Thanks. >> David >> "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message >> news:ff16fb664d228cad2468baebbd5@msnews.microsoft.com... >>> Hello David, >>> >>> Make sure that all machines use only the domain internal DNS. To >>> configure the FORWARDER got to DNS management console, rightclick the >>> server, open properties and choose the forwarders tab. >>> >>> Best regards >>> >>> Meinolf Weber >>> Disclaimer: This posting is provided "AS IS" with no warranties, and >>> confers no rights. >>> ** Please do NOT email, only reply to Newsgroups >>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>>> I looked at the ipconfig and it showed an old DNS IP from our >>>> previous ISP. I changed it on the DHCP setttings on the server and >>>> it seemed to improve it greatly. Thank you. >>>> >>>> David >>>> "Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message >>>> news:ff16fb664b4e8cad17e16a480ac@msnews.microsoft.com... >>>>> Hello David, >>>>> >>>>> Did you setup the FORWARDERS on the DC? Please post an unedited >>>>> ipconfig /all from client and DC. >>>>> >>>>> Best regards >>>>> >>>>> Meinolf Weber >>>>> Disclaimer: This posting is provided "AS IS" with no warranties, >>>>> and >>>>> confers no rights. >>>>> ** Please do NOT email, only reply to Newsgroups >>>>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm >>>>>> The XP client machines seem to be slower accessing the internet >>>>>> via our 2003 server. I have the client TCP/IP settings to point >>>>>> to the AD server as the primary DNS IP address. When I go to >>>>>> access the internet, I get "Looking up www.Google.com" in lower >>>>>> left and there is a delay. The 2nd time I try with a different >>>>>> www address I get "Waiting for www.dell.com" (for example) and the >>>>>> page is very slow. >>>>>> >>>>>> I tested the DSL speed and all is fine with that, but it appears >>>>>> to be a DNS problem. Am I right? and how can I set client >>>>>> correctly? Thanks. >>>>>> >>>>>> p.s. I tried adding our outside (ISP) DNS as the secondary on my >>>>>> client and the initial internet was very fast. But I could not >>>>>> access our SQL server when I did that until I removed the >>>>>> secondary DNS. Also, we have a firewall box that is our Gateway. >>>>>> >>>>>> David >>>>>> > >
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