<!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>freshclam: Setting up auto-updating</TITLE> <META NAME="description" CONTENT="freshclam: 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="node14.html"> <LINK REL="previous" HREF="node12.html"> <LINK REL="up" HREF="node6.html"> <LINK REL="next" HREF="node14.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html331" HREF="node14.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html327" HREF="node6.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html321" HREF="node12.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html329" 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="tex2html332" HREF="node14.html">freshclam: Mirrors and mirrors.txt</A> <B> Up:</B> <A NAME="tex2html328" HREF="node6.html">Installation</A> <B> Previous:</B> <A NAME="tex2html322" HREF="node12.html">Testing</A>   <B> <A NAME="tex2html330" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00037000000000000000"> freshclam: Setting up auto-updating</A> </H2> <I>freshclam</I> is a default database updater for Clam AntiVirus. It may work in two modes: <UL> <LI>interactively - from command line </LI> <LI>daemon - alone, silently </LI> </UL> When started by a superuser it drops privileges and by default switches to the <I>clamav</I> user. <I>freshclam</I> uses the <TT><A NAME="tex2html13" HREF="database.clamav.net">database.clamav.net</A></TT> round-robin DNS which automatically selects a database mirror<A HREF="node14.html#mirrors">2.8</A>. freshclam is advanced tool: supports proxy servers (with authentication), digital signature verification and various error scenarious. <B>Quick test: run <I>freshclam</I> (as a superuser) with no parameters and check the output.</B> If everythin is OK, you may create a log file in /var/log (owned by <I>clamav</I> or another user freshclam is running as (<I>-user</I>): <PRE> # touch /var/log/clam-update.log # chmod 600 /var/log/clam-update.log # chown clamav /var/log/clam-update.log </PRE> Now you can start <I>freshclam</I> in the daemon mode: <PRE> # freshclam -d -c 6 -l /var/log/clam-update.log </PRE> This enables checking for a new database six times per day (and this is a minimal suggested value). You should add that line to your startup scripts. The other way is to use the <I>cron</I> daemon. You have to add the following line to the crontab of <B>root</B> or <B>clamav</B>: <FONT SIZE="-1"> </FONT><PRE> 0 * * * * /usr/local/bin/freshclam --quiet -l /var/log/clam-update.log </PRE> to check for a new database every hour. To setup proxy support you may set the environment variable <I>$http_proxy</I>: <PRE> export http_proxy="my.proxy.server:8080" </PRE> or use <I>-http-proxy</I> and <I>-proxy-user</I> options. <P> <HR> <!--Navigation Panel--> <A NAME="tex2html331" HREF="node14.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html327" HREF="node6.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html321" HREF="node12.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html329" 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="tex2html332" HREF="node14.html">freshclam: Mirrors and mirrors.txt</A> <B> Up:</B> <A NAME="tex2html328" HREF="node6.html">Installation</A> <B> Previous:</B> <A NAME="tex2html322" HREF="node12.html">Testing</A>   <B> <A NAME="tex2html330" HREF="node1.html">Contents</A></B> <!--End of Navigation Panel--> <ADDRESS> Tomasz Kojm 2003-11-11 </ADDRESS> </BODY> </HTML>