85 lines
3.2 KiB
HTML
85 lines
3.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<TITLE>Chroot-BIND8 HOWTO: Compiling BIND</TITLE>
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<H2><A NAME="compiling"></A> <A NAME="s3">3. Compiling BIND</A></H2>
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<P>You should be able to find the BIND source by visiting
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<A HREF="http://www.isc.org/bind.html">http://www.isc.org/bind.html</A>. You need the <CODE>bind-src.tar.gz</CODE>
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package. Be sure to get the latest version!
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<P>
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<H2><A NAME="ss3.1">3.1 Modifying Paths</A>
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</H2>
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<P>Things can get a bit confusing at this point, because different parts of the
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BIND package will be referring to the same directories by different names
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(depending on whether or not they're running inside the jail). I'll try not to
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confuse you <B>too</B> much :-).
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<P>The main directory that we have to worry about here is <CODE>/var/run</CODE>, because
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its contents are required for both the main <CODE>named</CODE> daemon (inside the
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jail), and the <CODE>ndc</CODE> utility (on the outside). We'll start by setting
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everything up to find this directory from the outside world. To do this, we
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need to modify <CODE>src/port/linux/Makefile.set</CODE> (substitute your port's
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directory if you're not running Linux), and change the line
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<BLOCKQUOTE><CODE>
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<PRE>
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DESTRUN=/var/run
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</PRE>
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</CODE></BLOCKQUOTE>
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to
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<BLOCKQUOTE><CODE>
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<PRE>
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DESTRUN=/chroot/named/var/run
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</PRE>
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</CODE></BLOCKQUOTE>
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While you're in there, you may want to change the other destination paths from
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<CODE>/usr</CODE> to <CODE>/usr/local</CODE>.
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<P>Now everything should be able to find that directory... except the <CODE>named</CODE>
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daemon itself, to which it's still just <CODE>/var/run</CODE> inside the jail. We can
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get around this by making a small change in the <CODE>named</CODE> source. In the file
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<CODE>src/bin/named/named.h</CODE>, find the line
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<BLOCKQUOTE><CODE>
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<PRE>
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#include "pathnames.h"
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</PRE>
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</CODE></BLOCKQUOTE>
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and add the following line immediately after it
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<BLOCKQUOTE><CODE>
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<PRE>
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#define _PATH_NDCSOCK "/var/run/ndc"
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</PRE>
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</CODE></BLOCKQUOTE>
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This way, <CODE>named</CODE> will ignore our definition of <CODE>DESTRUN</CODE> over in
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<CODE>Makefile.set</CODE> and use the correct location (from its perspective in the
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chroot jail). You will notice some warnings about redefinitions of
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_PATH_NDCSOCK when you do the build; just ignore them.
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<P>
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<H2><A NAME="ss3.2">3.2 Doing the Build</A>
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</H2>
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<P>You should now be able to compile BIND as normal, following the instructions in
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the <CODE>INSTALL</CODE> file. At this stage, we only want to compile BIND, not install
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it. Don't go too far when following the <CODE>INSTALL</CODE> file. Essentially, it's
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just <CODE>make clean</CODE>, <CODE>make depend</CODE>, and <CODE>make</CODE>.
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<P>
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<HR>
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