Pleox
asked on
Nslookup always results in dns request timeout
I've one server 2008 DC with DNS installed. At the client, it can't ping or resolve by nslookup successfully at initial time.
We use ISP's dns as forwarders on DNS Server and verify that ISP's dns are working.
So browsing internet web page is slow now. May refresh or re-try serveral time to access webpage.
If I put the ISP's dns to local XP machine nic's dns manually, can browse internet very quickly and normally. When change back using DC's IP as dns. Browsing internet web page is slow again.
For details, please refer to this post.
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/1f6f6f6a-50a7-457c-a61b-2db51efbc557/
Hope anyone can help here.
We use ISP's dns as forwarders on DNS Server and verify that ISP's dns are working.
So browsing internet web page is slow now. May refresh or re-try serveral time to access webpage.
If I put the ISP's dns to local XP machine nic's dns manually, can browse internet very quickly and normally. When change back using DC's IP as dns. Browsing internet web page is slow again.
For details, please refer to this post.
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/1f6f6f6a-50a7-457c-a61b-2db51efbc557/
Hope anyone can help here.
Last Comment
Member_2_3654191
What DNS Server IP do you have configured on the DC itself? Please try 127.0.0.1.
How is DNS/Internet on the DC working? Also slow?
ASKER
Yes, Also slow on DC. This DC starts running from year 2010. Just find browsing web page slow or need to retry recently (around 2 weeks).
Here is DC/DNS Server. Original IP is itself. Now change to 127.0.0.1 and below is the test.
C:\Users\Administrator>nsl
Server: localhost
Address: 127.0.0.1
Non-authoritative answer:
DNS request timed out.
timeout was 2 seconds.
Name: www.casio.co.jp
Address: 210.150.32.174
Here is DC/DNS Server. Original IP is itself. Now change to 127.0.0.1 and below is the test.
C:\Users\Administrator>nsl
Server: localhost
Address: 127.0.0.1
Non-authoritative answer:
DNS request timed out.
timeout was 2 seconds.
Name: www.casio.co.jp
Address: 210.150.32.174
It is unlikely but is there any chance you hit something like this:
http://social.technet.microsoft.com/Forums/en-US/winservergen/thread/6b504838-daec-4771-ada3-391264d92861/
http://social.technet.microsoft.com/Forums/en-US/winservergen/thread/6b504838-daec-4771-ada3-391264d92861/
SOLUTION
THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
ASKER
The whole LAN computers (PC / Mac users) using this DNS server are browsing web slow.
Yes, tried your steps and did all.
We have one domain, 1 DC with DHCP and DNS installed. Installed symantec endpoint v11.0.6300.803 antivirus only without NTP. Around 60 clients only.
Browsing web page on DC locally are slow too.
Attached please find the result of tracert.
one is dc.txt
other one is client.txt which is using ISP's dns directly.
DC is really slow to access same target.
client.txt
dc.txt
Yes, tried your steps and did all.
We have one domain, 1 DC with DHCP and DNS installed. Installed symantec endpoint v11.0.6300.803 antivirus only without NTP. Around 60 clients only.
Browsing web page on DC locally are slow too.
Attached please find the result of tracert.
one is dc.txt
other one is client.txt which is using ISP's dns directly.
DC is really slow to access same target.
client.txt
dc.txt
And if you dissable symantec for 1 minute and try a few KNOWN TRUSTED sites? Is it the same then? I have known MANY AV products slow networks down horribly.
If you run a tracert -d external.website.com is it any quicked?
run two or three traceroutes from the server and a client both WITH the -d flag and without and see if they differ.
run two or three traceroutes from the server and a client both WITH the -d flag and without and see if they differ.
ASKER
Noted and will reply u when I go back that site this Fri. Many thanks.
ASKER
Attached pls find the result of tracert for both DC and client.
Found that DC didn't find the www.google.com.hk occassionally and client could get reponse from this site each time.
I've followed the below site to change MaxCacheTtl = 2 days.
http://support.microsoft.com/kb/968372
dnscmd /config /MaxCacheTtl 172800
Seems litte better than before and won't always response with "can't find the webpage". But still need to wait 2-3 seconds to appear webpage some time.
Current DC is using HP Team Network (combined 2 NIC). Will it be related?
Should I need to add 2nd DC and install it with 2nd DNS for try?
Many thanks.
DC--2012.7.13-.txt
DC--2012.7.14-.txt
WKS--2012.7.13-.txt
WKS--2012.7.14-.txt
Found that DC didn't find the www.google.com.hk occassionally and client could get reponse from this site each time.
I've followed the below site to change MaxCacheTtl = 2 days.
http://support.microsoft.com/kb/968372
dnscmd /config /MaxCacheTtl 172800
Seems litte better than before and won't always response with "can't find the webpage". But still need to wait 2-3 seconds to appear webpage some time.
Current DC is using HP Team Network (combined 2 NIC). Will it be related?
Should I need to add 2nd DC and install it with 2nd DNS for try?
Many thanks.
DC--2012.7.13-.txt
DC--2012.7.14-.txt
WKS--2012.7.13-.txt
WKS--2012.7.14-.txt
ASKER CERTIFIED SOLUTION
THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
Windows Server 2008
Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.
86K
Questions
--
Followers
--
Top Experts
Get a personalized solution from industry experts
TRUSTED BY
