55 lines
1.8 KiB
HTML
55 lines
1.8 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
||
|
<HTML>
|
||
|
<HEAD>
|
||
|
<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
|
||
|
<TITLE>Diald Howto: Notes about DNS name resolution</TITLE>
|
||
|
<LINK HREF="Diald-HOWTO-6.html" REL=next>
|
||
|
<LINK HREF="Diald-HOWTO-4.html" REL=previous>
|
||
|
<LINK HREF="Diald-HOWTO.html#toc5" REL=contents>
|
||
|
</HEAD>
|
||
|
<BODY>
|
||
|
<A HREF="Diald-HOWTO-6.html">Next</A>
|
||
|
<A HREF="Diald-HOWTO-4.html">Previous</A>
|
||
|
<A HREF="Diald-HOWTO.html#toc5">Contents</A>
|
||
|
<HR>
|
||
|
<H2><A NAME="s5">5. Notes about DNS name resolution</A></H2>
|
||
|
|
||
|
<P>
|
||
|
<P>Everytime you connect to an ISP, it is necesary to have configured DNS
|
||
|
name resolution, so your computer can find IP addresses associated to a
|
||
|
computer name.
|
||
|
<P>IP addresses of your DNS servers are placed into the
|
||
|
<CODE>/etc/resolv.conf</CODE> file.
|
||
|
<P>In a standalone computer connecting to Internet, this file usually
|
||
|
contains the IP addresses of your ISP's DNS servers:
|
||
|
<P>
|
||
|
<BLOCKQUOTE><CODE>
|
||
|
<PRE>
|
||
|
#/etc/resolv.conf file for ISPname
|
||
|
nameserver 111.222.333.444
|
||
|
nameserver 222.333.444.555
|
||
|
</PRE>
|
||
|
</CODE></BLOCKQUOTE>
|
||
|
<P>In a proxy/firewall computer, this file usually contains its own IP
|
||
|
address (or the loopback address, 127.0.0.1), and this computer includes a
|
||
|
DNS server that translates DNS names to IP addresses by querying external
|
||
|
DNS servers.
|
||
|
<P>
|
||
|
<BLOCKQUOTE><CODE>
|
||
|
<PRE>
|
||
|
#/etc/resolv.conf file for local DNS resolution
|
||
|
nameserver 127.0.0.1
|
||
|
</PRE>
|
||
|
</CODE></BLOCKQUOTE>
|
||
|
<P>Installation of a local DNS server is out of the scope of this document.
|
||
|
There is a lot of documentation about this, but a good and quick approach
|
||
|
can be found in the DNS-Howto (<CODE>
|
||
|
<A HREF="http://www.linuxdoc.org/HOWTO/DNS-HOWTO.html">http://www.linuxdoc.org/HOWTO/DNS-HOWTO.html</A></CODE>).
|
||
|
<P>
|
||
|
<HR>
|
||
|
<A HREF="Diald-HOWTO-6.html">Next</A>
|
||
|
<A HREF="Diald-HOWTO-4.html">Previous</A>
|
||
|
<A HREF="Diald-HOWTO.html#toc5">Contents</A>
|
||
|
</BODY>
|
||
|
</HTML>
|