Solved

Firewall blocking NSLOOKUP for public

Posted on 2013-01-14
11
1,849 Views
Last Modified: 2013-01-21
Hi All ..... brain freeze at present with a new Server 2012 with DNS and AD Domain Services installed.

Any NSLOOKUP or name resolution for external hosts fails (TIme Out) from command prompt. Disabling Public Windows Firewall fixes issue, but not sure on what I need to allow on this firewall so I can switch it back on?
0
Comment
Question by:Flipp
  • 6
  • 4
11 Comments
 
LVL 37

Expert Comment

by:bbao
ID: 38776930
> Disabling Public Windows Firewall fixes issue

do you mean the built-in firewall services on the Windows 2012 server?
0
 
LVL 6

Author Comment

by:Flipp
ID: 38777112
Yes correct
0
 
LVL 37

Expert Comment

by:bbao
ID: 38778243
you may first try resetting the firewall with default rules, as shown below.
Windows Firewall with Advanced Security
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 6

Author Comment

by:Flipp
ID: 38780978
By doing this, I may lose other settings on Firewall - i'd prefer to identify what may need to be added as an exception :)

Any thoughts?
0
 
LVL 37

Expert Comment

by:bbao
ID: 38781571
did you notice the Import and Export options above the Reset option? you won't lose the settings. :-)
0
 
LVL 6

Author Comment

by:Flipp
ID: 38785427
Firewall disabled and still seeing issues :(

When in DNS Forwarders, I notice that timeouts are occurring on ISPs and Google's Public DNS Servers?
0
 
LVL 62

Expert Comment

by:gheist
ID: 38786077
You need to say the domain name and DNS server if you want people to help you.
After you got your help you can ask moderators to clean private info form your posts.

Sadly nobody can guess what problems you are experiencing from graphic screenshots not even shoving a single error message.
0
 
LVL 6

Accepted Solution

by:
Flipp earned 0 total points
ID: 38786361
NIC Teaming mode incorrectly set on Hyper-V Host. Was set to Address Hash when should of been Hyper-V Port.
0
 
LVL 37

Expert Comment

by:bbao
ID: 38797494
>> Disabling Public Windows Firewall fixes issue
> Firewall disabled and still seeing issues

which description was correct??
0
 
LVL 6

Author Comment

by:Flipp
ID: 38797544
Also came across http://social.technet.microsoft.com/wiki/contents/articles/14131.windows-2012-server-nic-teaming-for-hyperv.aspx which confirms my testing results and the mode I now HAVE TO use.
0
 
LVL 6

Author Closing Comment

by:Flipp
ID: 38800584
Solution had nothing to do with any response and totally unrelated to question.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I'm a big fan of Windows' offline folder caching and have used it on my laptops for over a decade.  One thing I don't like about it, however, is how difficult Microsoft has made it for the cache to be moved out of the Windows folder.  Here's how to …
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question