<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2K.1beta (1.48) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>Setting up auto-updating</TITLE> <META NAME="description" CONTENT="Setting up auto-updating"> <META NAME="keywords" CONTENT="clamdoc"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="LaTeX2HTML v2K.1beta"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="clamdoc.css"> <LINK REL="next" HREF="node22.html"> <LINK REL="previous" HREF="node20.html"> <LINK REL="up" HREF="node16.html"> <LINK REL="next" HREF="node22.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html683" HREF="node22.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html679" HREF="node16.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html673" HREF="node20.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html681" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="/usr/share/latex2html/icons/contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html684" HREF="node22.html">Closest mirrors</A> <B> Up:</B> <A NAME="tex2html680" HREF="node16.html">Configuration</A> <B> Previous:</B> <A NAME="tex2html674" HREF="node20.html">Testing</A>   <B> <A NAME="tex2html682" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00054000000000000000"> Setting up auto-updating</A> </H2> <code>freshclam</code> is a default database updater for Clam AntiVirus. It can work in two modes: <UL> <LI>interactive - from command line, verbosely </LI> <LI>daemon - alone, silently </LI> </UL> When started by a superuser it drops privileges and switches to the <I>clamav</I> user. <code>freshclam</code> uses the <TT><A NAME="tex2html30" HREF="database.clamav.net">database.clamav.net</A></TT> round-robin DNS which automatically selects a database mirror<A HREF="node104.html#mirrors">9.1</A>. <code>freshclam</code> is an advanced tool: supports database version verification through DNS, proxy servers (with authentication), digital signatures and various error scenarios. <B>Quick test: run freshclam (as superuser) with no parameters and check the output.</B> If everything is OK you may create the log file in /var/log (owned by <I>clamav</I> or another user <code>freshclam</code> will be running as (<code>--user</code>): <PRE> # touch /var/log/clam-update.log # chmod 600 /var/log/clam-update.log # chown clamav /var/log/clam-update.log </PRE> Now you <I>should</I> edit the configuration file (<code>freshclam.conf</code> or <code>clamd.conf</code> if they're merged) and configure the <I>UpdateLogFile</I> directive to point to the created log file. Finally, to run <code>freshclam</code> in the daemon mode execute: <PRE> # freshclam -d </PRE> The other method is to use the <I>cron</I> daemon. You have to add the following line to the crontab of the <B>root</B> or <B>clamav</B> users: <FONT SIZE="-1"> </FONT><PRE> N * * * * /usr/local/bin/freshclam --quiet </PRE> to check for a new database every hour. <B>N should be a number between 1 and 59 of your choice. Please don't choose any multiple of 10, because there are already too many servers using those time slots.</B> Proxy settings are only configurable via the configuration file and <code>freshclam</code> will require strict permissions on the config file when <code>HTTPProxyPassword</code> is enabled. <PRE> HTTPProxyServer myproxyserver.com HTTPProxyPort 1234 HTTPProxyUsername myusername HTTPProxyPassword mypass </PRE> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html683" HREF="node22.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html679" HREF="node16.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html673" HREF="node20.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html681" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="/usr/share/latex2html/icons/contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html684" HREF="node22.html">Closest mirrors</A> <B> Up:</B> <A NAME="tex2html680" HREF="node16.html">Configuration</A> <B> Previous:</B> <A NAME="tex2html674" HREF="node20.html">Testing</A>   <B> <A NAME="tex2html682" HREF="node1.html">Contents</A></B> <!--End of Navigation Panel--> <ADDRESS> Tomasz Kojm 2004-09-28 </ADDRESS> </BODY> </HTML>