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<TITLE>Running named</TITLE>
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<B> Next:</B> <A HREF="node87.html">The named.boot File</A>
<B>Up:</B> <A HREF="node80.html">Name Service and Resolver </A>
<B> Previous:</B> <A HREF="node85.html">Resolver Robustness</A>
<BR> <P>
<H1><A NAME="SECTION008200000">Running named</A></H1>
The program that provides domain name service on most machines is
usually called named (pronounced <em>name-dee</em>). This is a
server program originally developed for BSD providing name service to
clients, and possibly to other name servers. The version currently
used on most installations seems to be BIND-4.8.3. The new
version, BIND-4.9.3, is being Beta-tested at the moment, and should be
available on soon.
<P>
This section requires some understanding of the way the Domain Name
System works. If the following discussion is all Greek to you, you may
want to re-read chapter-<A HREF="node23.html#tcpip"><IMG ALIGN=BOTTOM ALT="gif" SRC="cross_ref_motif.gif"></A>, which has some more information
on the basics of DNS.
<P>
<A NAME="3688"></A>
named is usually started at system boot time, and runs until
the machine goes down again. It takes its information from a
configuration file called /etc/named.boot, and various files
that contain data mapping domain names to addresses and the like. The
latter are called <em>zone files</em>. The formats and semantics of
these files will be explained in the following section.
<P>
To run named, simply enter
<pre>
# /usr/sbin/named
</pre>
at the prompt. named will come up, read the named.boot
file and any zone files specified therein. It writes its process id to
/var/run/named.pid in ASCII, downloads any zone files from primary
servers, if necessary, and starts listening on port 53 for DNS
queries.<A HREF="footnode.html#3689"><IMG ALIGN=BOTTOM ALT="gif" SRC="foot_motif.gif"></A>
<P>
<BR> <HR>
<UL>
<LI> <A HREF="node87.html#SECTION008210000">The named.boot File</A>
<LI> <A HREF="node88.html#SECTION008220000">The DNS Database Files</A>
<LI> <A HREF="node89.html#SECTION008230000">Writing the Master Files</A>
<LI> <A HREF="node90.html#SECTION008240000">Verifying the Name Server Setup</A>
<LI> <A HREF="node91.html#SECTION008250000">Other Useful Tools</A>
</UL>
<BR> <HR>
<P><ADDRESS>
<I>Andrew Anderson <BR>
Thu Mar 7 23:22:06 EST 1996</I>
</ADDRESS>
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