Strange networking problem
Hi, i have a strange problem. I just installed windows server 2012 on a server used for testing. I can resolv any public internet domain except mozilla.* (mozilla.com and .org)
I cant even get through using IPs of mozilla sites... But all other sites so far works fine. Its like mozilla is blocked somehow. Checked IPv6 issues, disabled IPv6 on server and in DNS server. Even set up hosts file with correct IPs. Cleared dns cache in windows and i firefox. Turned off IPv6 in firefox. I have no problems from any other computer on the LAN, including a virtualbox VM on the same server.... Firewalls are checked also.
I cant even get through using IPs of mozilla sites... But all other sites so far works fine. Its like mozilla is blocked somehow. Checked IPv6 issues, disabled IPv6 on server and in DNS server. Even set up hosts file with correct IPs. Cleared dns cache in windows and i firefox. Turned off IPv6 in firefox. I have no problems from any other computer on the LAN, including a virtualbox VM on the same server.... Firewalls are checked also.
ASKER
Ok, it's set up with the domain controller as DNS server. No other settings. DNS suffix settings are windows default. DNS server works on all other servers and clients, just not this one - Strange, because i installed the OS just yesterday and only set up virtualbox on it. Also checked VBox bridge adapter settings=Ok
nslookup resolves to mozilla.org.mydomain.com wich is strange. Also set up conditional forwarders for the mozilla domainnames now, but no change.
nslookup resolves to mozilla.org.mydomain.com wich is strange. Also set up conditional forwarders for the mozilla domainnames now, but no change.
Provide output of
ipconfig /all
from this server so we can see the ip settings
Also setup Forwarders in the DNS console(not Conditional Forwarders - delete those)
Open DNS Console - right click the server name and select properties
In the Forwarders tab add
208.67.222.222
208.67.220.220
8.8.8.8
Then see if things work(note these dns entries are from OpenDNS and Google)
ipconfig /all
from this server so we can see the ip settings
Also setup Forwarders in the DNS console(not Conditional Forwarders - delete those)
Open DNS Console - right click the server name and select properties
In the Forwarders tab add
208.67.222.222
208.67.220.220
8.8.8.8
Then see if things work(note these dns entries are from OpenDNS and Google)
ASKER
Hi,
For IPconfig see attachment.
Of cource i have forwarders configured in my DNS already. I use those of my ISP and of OpenDNS. Conditional forwarders are used for resolving a certain domain using another forwarder which is something i wanted to just test. Btw, just setting the DNS of my ISP on a server does not give better resolution - this leads me to beleive that my AD DNS is not the issue.
As i cannot also connect using the IP of certain websites i suspect there is an other problem besides DNS. DNS worked perfectly for many months untill i introduced Windows 2012. Then one of the 2012 servers had this problem. Now i have a hyper-v server 2012 R2 that hosts 2008 R2 guests and now some of those guests are getting networking issues aswel.
Funny thing though. I enabled DHCP on one of those 2008 R2 servers, then set the same static IP as before and it works again... I'm thinking maybe server 2012 have some driver issues.
Anyway, as much as i'd like to take advantage of the new features in 2012 R2, i think i have to revert to 2008 R2.
For IPconfig see attachment.
Of cource i have forwarders configured in my DNS already. I use those of my ISP and of OpenDNS. Conditional forwarders are used for resolving a certain domain using another forwarder which is something i wanted to just test. Btw, just setting the DNS of my ISP on a server does not give better resolution - this leads me to beleive that my AD DNS is not the issue.
As i cannot also connect using the IP of certain websites i suspect there is an other problem besides DNS. DNS worked perfectly for many months untill i introduced Windows 2012. Then one of the 2012 servers had this problem. Now i have a hyper-v server 2012 R2 that hosts 2008 R2 guests and now some of those guests are getting networking issues aswel.
Funny thing though. I enabled DHCP on one of those 2008 R2 servers, then set the same static IP as before and it works again... I'm thinking maybe server 2012 have some driver issues.
Anyway, as much as i'd like to take advantage of the new features in 2012 R2, i think i have to revert to 2008 R2.
No attachment...
Ok sounds like you are setup correctly for DNS at least
Haven't had much experience with 2012 yet so yes it might be something in relation to that new system...@CompProbSolv might have more insight on that one...
Ok sounds like you are setup correctly for DNS at least
Haven't had much experience with 2012 yet so yes it might be something in relation to that new system...@CompProbSolv might have more insight on that one...
A couple of other results would be helpful:
mslookup mozilla.org.
(note the period at the end)
also run a tracert to the correct ip of mozilla.org
mslookup mozilla.org.
(note the period at the end)
also run a tracert to the correct ip of mozilla.org
ASKER
Sorry, Attaching again. Tracert also attached.
ipconfig.txt
mozillatrace.txt
nslookup.txt
nslookup2.txt
ipconfig.txt
mozillatrace.txt
nslookup.txt
nslookup2.txt
Please don't blank out the contents of ipconfig...we can't tell anything from that with all the xxx in the way
This is a private ip address range and there is no security risk to showing us this info...
This is a private ip address range and there is no security risk to showing us this info...
SOLUTION
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ASKER CERTIFIED SOLUTION
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I def agree on the 2012 and production...I'm not installing it yet either so no arguements there ;)
ASKER
That was the solution
What happens if you do
start
run
nslookup mozilla.com