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Limited Internat Access - DNS Problem?

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  • Limited Internat Access - DNS Problem?

    Hi there,

    I have recently set up a DNS server, and it all works now for the internal network except that for some reason I have limited internet access. The DNS is set up with a forwarder to my router which has internet access. I can connect to the VPN from outside, and I can access www.google.com but most other websites are not reachable.

    If I tracert google, I get the following:
    Code:
    C:\Users\Administrator>tracert www.google.com
    
    Tracing route to www.google.com [74.125.233.80]
    over a maximum of 30 hops:
    
      1    <1 ms    <1 ms    <1 ms  192.168.88.1
      2     7 ms     7 ms    10 ms  197.87.59.1
      3     8 ms     9 ms     9 ms  197.82.5.250
      4     9 ms     9 ms     9 ms  197.82.2.3
      5    20 ms    21 ms    20 ms  197.80.7.37
      6    21 ms    22 ms    21 ms  197.80.96.6
      7    30 ms    21 ms    22 ms  64.233.174.57
      8    22 ms    23 ms    21 ms  74.125.233.80
    
    Trace complete.
    If a tracert another site like my host provider, I get the following:
    Code:
    C:\Users\Administrator>tracert www.webafrica.co.za
    Unable to resolve target system name www.webafrica.co.za.
    My router IP is 192.168.88.1 and I have set this as a forwarder in DNS. Is there anything else I need to do to get it working?

    Note that if I bypass the DNS server and use the router as the DNS server then all works fine.

    Thanks
    David

  • #2
    Re: Limited Internat Access - DNS Problem?

    Aha I figured it out - when I changed my AD domain it lost the root hints in DNS - I had to reset the root name server IP addresses and now it all works fine

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    • #3
      Re: Limited Internat Access - DNS Problem?

      Also set up a couple of DNS forwarders - either your ISPs DNS servers or a couple of public ones like google (8.8.8.8 and 8.8.4.4) or open-dns (208.67.222.222 and 208.67.220.220)
      Tom Jones
      MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
      PhD, MSc, FIAP, MIITT
      IT Trainer / Consultant
      Ossian Ltd
      Scotland

      ** Remember to give credit where credit is due and leave reputation points where appropriate **

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