Step-by-Step Guide for dns in Small Networks

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• ipconfig /all

dcdiag /test:dns /v /s:domain_controller command.

One client only cannot resolve any intranet or Internet names	If the ping command using IP addresses fails, this result indicates that the client computer cannot connect to the network. If the ping command using IP addresses succeeds, but the ping command cannot resolve DNS domain names, the TCP/IP settings of the client may be incorrect.	Ensure that the client computer is physically connected to the network and that the network adapter for the computer functions properly, or correct the TCP/IP settings, as necessary. To correct the settings, see Configuring Client Settings.
One client only cannot resolve intranet names, only Internet names	If you previously configured the client computer to connect directly to the Internet, its TCP/IP properties might be configured to use an external DNS server, such as a DNS server from an Internet service provider (ISP). In most cases, the client should not use a DNS server from an ISP as either the preferred or alternate DNS server because the DNS server at the ISP is not able to resolve internal names. Using a DNS server from an ISP in the TCP/IP configuration of a client can also cause problems with conflicting internal and external namespaces.	To correct the settings, see Configuring Client Settings.

If you have ruled out all of these potential problems for a particular client and still cannot resolve DNS names, use the procedures in Configuring Client Settings to verify the DNS client settings. Then, at a command prompt, type ipconfig /all to view the current TCP/IP configuration.

If the client does not have a valid TCP/IP configuration, you can perform one of the following tasks:

 For dynamically configured clients, use the ipconfig /renew command to manually force the client to renew its IP address configuration with the DHCP server.

 For statically configured clients, modify the client TCP/IP properties to use valid configuration settings or to complete its DNS configuration for the network.

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