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>Setting up Clamd and Using With Daemontools</TITLE
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>Chapter 3. ClamAV</TD
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>3.5. Setting up Clamd and Using With Daemontools</H1
><P
>Edit /etc/clamd.conf and make the following changes.</P
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><PRE
CLASS="screen"
>#vi /etc/clamd.conf</PRE
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><P
></P
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><TR
><TD
>Uncomment "LogSyslog"</TD
></TR
><TR
><TD
>Uncomment "StreamSaveToDisk"</TD
></TR
><TR
><TD
>Uncomment "MaxThreads" and change value to "30"</TD
></TR
><TR
><TD
>Uncomment "User" and change value to "qscand"</TD
></TR
><TR
><TD
>Uncomment "Foreground"</TD
></TR
><TR
><TD
>Uncomment "ScanMail"</TD
></TR
></TBODY
></TABLE
><P
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><P
>Create the clamav directory.</P
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><PRE
CLASS="screen"
>#mkdir -p /usr/local/clamav/bin</PRE
></FONT
></TD
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></TABLE
><P
>Now create a startup/shutdown script for clamd. Copy and paste the
script shown below. This script was written by Jesse D. Guardiani.</P
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>
#vi /usr/local/clamav/bin/clamdctl
#!/bin/sh
# For Red Hat chkconfig
# chkconfig: - 80 30
# description: the ClamAV clamd daemon
PATH=/usr/local/clamav/bin:/bin:/usr/bin:/usr/local/bin:/usr/local/sbin
export PATH
case "$1" in
start)
echo "Starting clamd"
if svok /service/clamd ; then
svc -u /service/clamd
else
echo clamd supervise not running
fi
if [ -d /var/lock/subsys ]; then
touch /var/lock/subsys/clamd
fi
;;
stop)
echo "Stopping clamd..."
echo " clamd"
svc -d /service/clamd
if [ -f /var/lock/subsys/clamd ]; then
rm /var/lock/subsys/clamd
fi
;;
stat)
svstat /service/clamd
svstat /service/clamd/log
;;
restart)
echo "Restarting clamd:"
echo "* Stopping clamd."
svc -d /service/clamd
echo "* Sending clamd SIGTERM and restarting."
svc -t /service/clamd
echo "* Restarting clamd."
svc -u /service/clamd
;;
hup)
echo "Sending HUP signal to clamd."
svc -h /service/clamd
;;
help)
cat &#60;&#60;HELP
stop -- stops clamd service (smtp connections refused, nothing goes out)
start -- starts clamd service (smtp connection accepted, mail can go out)
stat -- displays status of clamd service
restart -- stops and restarts the clamd service
hup -- same as reload
HELP
;;
*)
echo "Usage: $0 {start|stop|stat|restart|hup|help}"
exit 1
;;
esac
exit 0
</PRE
></FONT
></TD
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></TABLE
><P
>Make clamdctl an executable and link to path:</P
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><TD
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><PRE
CLASS="screen"
>#chmod 755 /usr/local/clamav/bin/clamdctl</PRE
></FONT
></TD
></TR
></TABLE
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><TD
><FONT
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><PRE
CLASS="screen"
>#chown clamav /usr/local/clamav/bin/clamdctl</PRE
></FONT
></TD
></TR
></TABLE
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><TD
><FONT
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><PRE
CLASS="screen"
>#ln -s /usr/local/clamav/bin/clamdctl /usr/local/bin</PRE
></FONT
></TD
></TR
></TABLE
><P
>Create the supervise directories for the clamd service:</P
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><TD
><FONT
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><PRE
CLASS="screen"
>#mkdir -p /usr/local/clamav/supervise/clamd/log</PRE
></FONT
></TD
></TR
></TABLE
><P
>Now you must create the /usr/local/clamav/supervise/clamd/run file, or
just copy and paste the script shown below. This script was also created by
Jesse D. Guardiani:</P
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>&#13;vi /usr/local/clamav/supervise/clamd/run
#!/bin/sh
#
# --------------------------------------------------
# run
#
# Purpose - Start the clamd daemon/service.
#
# Author - Jesse D. Guardiani
# Created - 09/10/03
# Modified - 09/25/03
# --------------------------------------------------
# This script is designed to be run under DJB's
# daemontools package.
#
# ChangeLog
# ---------
#
# 09/25/03 - JDG
# --------------
# - Changed clamd user to qscand in compliance with
# the change to qmail-scanner-1.20rc3
#
# 09/10/03 - JDG
# --------------
# - Created
# --------------------------------------------------
# Copyright (C) 2003 WingNET Internet Services
# Contact: Jesse D. Guardiani (jesse at wingnet dot net)
# --------------------------------------------------
lockfile="/tmp/clamd" # Location of clamd lock file
path_to_clamd="/usr/local/sbin/clamd"
# Location of the clamd binary
BAD_EXIT_CODE=1 # The exit code we use to announce that something bad has happened
# The following pipeline is designed to return the pid of each
# clamd process currently running.
get_clam_pids_pipeline=`ps -ax | grep -E "${path_to_clamd}\$" | grep -v grep | awk '{print $1}'`
# --------------------------------------------------
# Generic helper functions
# --------------------------------------------------
# Basic return code error message function
die_rcode() {
EXIT_CODE=$1
ERROR_MSG=$2
if [ $EXIT_CODE -ne '0' ]; then
echo "$ERROR_MSG" 1&#62;&#38;2
echo "Exiting!" 1&#62;&#38;2
exit "$BAD_EXIT_CODE"
fi
}
# --------------------------------------------------
# Main
# --------------------------------------------------
ps_clamd=""
ps_clamd="$get_clam_pids_pipeline"
if [ -n "$ps_clamd" ]; then
pid_count="0"
for pid in $ps_clamd
do
pid_count=`expr $pid_count + 1`
done
die_rcode $BAD_EXIT_CODE "Error: $pid_count clamd process(es) already running!"
fi
if [ -e "$lockfile" ]; then
rm "$lockfile"
exit_code="$?"
die_rcode $exit_code "Error: 'rm $lockfile' call failed."
fi
exec /usr/local/bin/setuidgid qscand $path_to_clamd
# --
# END /usr/local/clamav/supervise/clamd/run file.
# --
Create the /usr/local/clamav/supervise/clamd/log/run file:
#vi /usr/local/clamav/supervise/clamd/log/run
#!/bin/sh
exec /usr/local/bin/setuidgid qscand /usr/local/bin/multilog t /var/log/clamd
</PRE
></FONT
></TD
></TR
></TABLE
><P
>Make the run files executable:</P
><TABLE
BORDER="0"
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WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>#chmod 755 /usr/local/clamav/supervise/clamd/run</PRE
></FONT
></TD
></TR
></TABLE
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>#chmod 755 /usr/local/clamav/supervise/clamd/log/run</PRE
></FONT
></TD
></TR
></TABLE
><P
>Now set up the log directories:</P
><TABLE
BORDER="0"
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WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>#mkdir -p /var/log/clamd</PRE
></FONT
></TD
></TR
></TABLE
><TABLE
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><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>chown qscand /var/log/clamd</PRE
></FONT
></TD
></TR
></TABLE
><P
>Finally, link the supervise directory into /service:</P
><TABLE
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><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>#ln -s /usr/local/clamav/supervise/clamd /service</PRE
></FONT
></TD
></TR
></TABLE
><P
>* Note: The clamd script will start automatically shortly after these
links are created. If you don't want it running, do the following:</P
><TABLE
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><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>#clamdctl stop</PRE
></FONT
></TD
></TR
></TABLE
><P
>To start clamd backup, do the following</P
><TABLE
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><TD
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>#clamdctl start</PRE
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