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//usr/share/system-config-network/help/network-config-dns.html

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>Chapter 9. Managing DNS Settings</H1
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>	The <B
CLASS="GUILABEL"
>DNS</B
> tab allows you to configure the system's
	hostname, domain, name servers, and search domain. Name servers are used
	to look up other hosts on the network.
      </P
><P
>	If the DNS server names are retrieved from DHCP or PPPoE (or retrieved
	from the ISP), do not add primary, secondary, or tertiary DNS servers.
      </P
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>	If the hostname is retrieved dynamically from DHCP or PPPoE (or
	retrieved from the ISP), do not change it.
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>Figure 9-1. DNS Configuration</B
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>	  The name servers section does not configure the system to be a name
	  server. Instead, it configures the name servers to use when resolving
	  IP address to hostnames and vice versa.
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