55 lines
1.8 KiB
HTML
55 lines
1.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Diald Howto: Notes about DNS name resolution</TITLE>
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<HR>
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<H2><A NAME="s5">5. Notes about DNS name resolution</A></H2>
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<P>
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<P>Everytime you connect to an ISP, it is necesary to have configured DNS
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name resolution, so your computer can find IP addresses associated to a
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computer name.
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<P>IP addresses of your DNS servers are placed into the
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<CODE>/etc/resolv.conf</CODE> file.
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<P>In a standalone computer connecting to Internet, this file usually
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contains the IP addresses of your ISP's DNS servers:
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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#/etc/resolv.conf file for ISPname
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nameserver 111.222.333.444
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nameserver 222.333.444.555
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>In a proxy/firewall computer, this file usually contains its own IP
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address (or the loopback address, 127.0.0.1), and this computer includes a
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DNS server that translates DNS names to IP addresses by querying external
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DNS servers.
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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#/etc/resolv.conf file for local DNS resolution
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nameserver 127.0.0.1
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</PRE>
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</CODE></BLOCKQUOTE>
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<P>Installation of a local DNS server is out of the scope of this document.
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There is a lot of documentation about this, but a good and quick approach
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can be found in the DNS-Howto (<CODE>
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<A HREF="http://www.linuxdoc.org/HOWTO/DNS-HOWTO.html">http://www.linuxdoc.org/HOWTO/DNS-HOWTO.html</A></CODE>).
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<P>
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<HR>
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