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Article:
  A DNS Primer
Subject:   dig works, nslookup doesn't
Date:   2003-05-29 01:05:50
From:   ausmike
Thought I'd follow along on my own machine, and got the following error message:


Lookup has started ...


*** Can't find server name for address 192.168.0.1: Non-existent host/domain
*** Default servers are not available


This is of course the IP address for my router.


When I check the "Use 'dig' in place of 'nslookup'" option it all goes through as expected.


Is this expected behavior, or is there something about my home network which is poorly configured? (I've had problems connecting to this computer from others on the network, so I wouldn't be surprised if it were the latter).
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  • dig works, nslookup doesn't
    2003-05-30 04:25:04  danbenjamin [Reply | View]

    Without knowing exactly what you are doing with your network config, I can take a guess and say that your router needs to re-broadcast the DNS server information it's being assigned when it gets its DHCP info from your ISP, and pass this down to clients (aka your Mac) when it assigns them their NAT addresses.

    In other words, there should be a configuration option in the router's setup which should allow you to have it assign DNS addresses to client Macs and PCs.

    An even better way to remedy this would be to enter a few DNS servers manually into the TCP/IP tab of the Network panel in System Preferences.

    Try using 24.95.227.34 and 24.95.227.35.

    Good luck.

  • dig works, nslookup doesn't
    2003-05-29 19:38:51  anonymous2 [Reply | View]

    I have the same network setup and also got the same message. to me it doesn't seem right that nslookup won't work behind a router so maybe it is a network configuration issue.