freebsd-dev/contrib/bind/doc/bog/manage.me
Peter Wemm d6da9453b6 Take #2. Import bind-4.9.4-P1 into the intended directory!
This has most of the non-essential stuff removed (ie: what is not built)

bmake glue to follow.
1996-08-29 19:20:22 +00:00

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.\" ++Copyright++ 1986, 1988, 1995
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.\" --Copyright--
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.\" @(#)manage.me 6.6 (Berkeley) 9/19/89
.\" $Id: manage.me,v 8.4 1995/12/22 10:20:24 vixie Exp $
.\"
.sh 1 "Domain Management"
.pp
This section contains information for starting, controlling and debugging
\fInamed\fP.
.sh 2 /etc/rc.local
.pp
The hostname should be set to the full domain style name in
\fI/etc/rc.local\fP using \fIhostname\|(1)\fP. The following entry should
be added to \fI/etc/rc.local\fP to start up \fInamed\fP at system boot time:
.(b l
\fIif [ -f /usr/sbin/named ]; then
/usr/sbin/named\fP [options] \fI& echo -n ' named' >/dev/console\fP
\fIfi\fP
.)b
This usually directly follows the lines that start \fIsyslogd\fP.
\fBDo Not\fP attempt to run \fInamed\fP from \fIinetd\fP.
This will
continuously restart the name server and defeat the purpose of the cache.
.sh 2 /var/run/named.pid
.pp
When \fInamed\fP is successfully started up it writes its process id into
the file \fI/var/run/named.pid\fP. This is useful to programs that want to
send signals to \fInamed\fP. The name of this file may be changed by defining
\fIPIDFILE\fP to the new name when compiling \fInamed\fP.
.sh 2 /etc/hosts
.pp
The \fIgethostbyname\|()\fP library call can detect if \fInamed\fP is running.
If it is determined that \fInamed\fP is not running it will look in
\fI/etc/hosts\fP to resolve an address.
This option was added to allow \fIifconfig\|(8C)\fP to configure the machines
local interfaces and to enable a system manager to access the network
while the system is in single user mode.
It is advisable to put the local machines interface addresses and a couple of
machine names and address in
\fI/etc/hosts\fP so the system manager can rcp files from another machine
when the system is in single user mode.
The format of \fI/etc/hosts\fP has not changed. See \fIhosts\|(5)\fP
for more information.
Since the process of reading \fI/etc/hosts\fP is slow,
it is not advisable to use this option when the system is in multi user mode.
.sh 2 Signals
.pp
There are several signals that can be sent to the \fInamed\fP process
to have it do tasks without restarting the process.
.sh 3 Reload
.pp
SIGHUP -
Causes \fInamed\fP to read \fInamed.boot\fP and reload the database.
This is useful when you have made a change to a ``primary'' data file
and you want \fInamed\fP\|'s internal database to reflect the change.
If you build \s-1BIND\s+1 with the \s-1FORCED_RELOAD\s+1 option, then
\s-1SIGHUP\s+1 also has the effect of scheduling all ``secondary'' zones
for serial-number checks, which could lead to zone transfers ahead of
the usual schedule. Normally serial-number compares are done only at
the intervals specified in the zone's \s-1SOA\s+1 record.
.sh 3 Debugging
.pp
When \fInamed\fP is running incorrectly, look first in
\fI/var/log/messages\fP and check for any messages logged by \fIsyslog\fP.
Next send it a signal to see what is happening. Unless you run it with the
``-d'' option, \fInamed\fP has very little to say on its standard output or
standard error. Everything \fInamed\fP has to say, it says to \fIsyslog\fP.
.pp
SIGINT -
Dumps the current data base and cache to
\fI/var/tmp/named_dump.db\fP
This should give you an indication to whether the data base was loaded
correctly.
The name of the dump file may be changed
by defining \fIDUMPFILE\fP to the new name when compiling \fInamed\fP.
\fINote:\fP the following two signals only work when \fInamed\fP is built with
\fIDEBUG\fP defined.
.pp
SIGUSR1 -
Turns on debugging. Each following SIGUSR1 increments the debug level.
The output goes to \fI/var/tmp/named.run\fP
The name of this debug file may be changed
by defining \fIDEBUGFILE\fP to the new name before compiling \fInamed\fP.
.pp
SIGUSR2 -
Turns off debugging completely.
For more detailed debugging, define DEBUG when compiling the resolver
routines into \fI/lib/libc.a\fP.
.pp
SIGWINCH -
Toggles tracing of all incoming queries if \fInamed\fP has been
compiled with \fIQRYLOG\fP defined. The trace is sent to syslog, and
is huge, but it is very useful for tracking down problems.
To run with tracing of all queries specify the \fI-q\fP flag on the
command line. If you routinely log queries you will probably want to
analyze the results using the dnsstats stats script in the
contrib directory.
.pp
SIGIOT -
Dumps statistics data into \fI/var/tmp/named.stats\fP if the server
is built with \fISTATS\fP defined. Statistics are appended to the file.