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<TD><A name="features"><B>Features:</B></A></TD>
<TD><UL><LI>Forwards only allowed, harmless content
<LI>Filtering of HTTP and HTML
<LI>Using POSIX threads
<LI>Written in plain C
<LI>Generic configuration
<LI>Extensive audit possible
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<TD><A name="documentation"><B>Documentation:</B></A></TD>
<TD><UL><LI>Short
<A HREF="http://www.fwl.dfn.de/eng/fwl/httpf/httpf.html" target=_top>description</A>
of the filtering principles
<LI>Same
<A HREF="http://www.fwl.dfn.de/fwl/httpf/" target=_top>description</A>
in German
<LI>The
<A HREF="http://httpf.sourceforge.net/README" target=_top>README</A> from the distribution
<LI>... more to come
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<TD><B><A name="project">Project:</B></A></TD>
<TD><UL><LI>Our <A HREF="http://sourceforge.net/project/?group_id=3314" target=_top>project
page</A> hosted by
<A target=_top>sourceforge</A>.
Access to the actual developer CVS tree,
mailing lists, bugtracking lists etc.
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<TD><B>Download:</B></TD>
<TD><UL><LI>Actual Source:
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-5-src.tar.gz"
target=_top>Release 1-0-5</A> as .tar.gz file.
<LI>Old releases:
<UL><LI>The
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-4-src.tar.gz"
target=_top>sources of release 1.0.4</A> as .tar.gz file.
<LI>The
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-3-src.tar.gz"
target=_top>sources of release 1.0.3</A> as .tar.gz file.
<LI>The
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-2-src.tar.gz"
target=_top>sources of release 1.0.2</A> as .tar.gz file.
<LI>If you trust it: A
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-2-lnxintbin.tar.gz"
target=_top>linux binary</A> (Intel, compiled on SuSE 6.3).
<LI>If you trust it: A
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-2-solspcbin.tar.gz"
target=_top>solaris binary</A> (for sparc).
<LI>If you trust it: A
<A HREF="http://httpf.sourceforge.net/distrib/httpf-1-0-2-solintbin.tar.gz"
target=_top>solaris binary</A> (for intel).
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<TD><A name="links"><B>Links:</B></A></TD>
<TD><UL><LI>A very rich (but less secure) webfilter:
<A HREF="http://muffin.doit.org" target=_top>muffin</A>.
<LI>A <A HREF="http://Theory.Stanford.EDU/~vganesh/project.html" target=_top>security project</A> at the Stanford University to
modify Java Bytecode for security reasons.
<LI>The DFN (German research network)
<A HREF="http://www.fwl.dfn.de/fwl/" target=_top>Firewall
Laboratory</A> (DFN-FWL). They financed our work.
<LI>Other filters not especially designed for security,
but to eat cookies, banners etc.: <A HREF="http://www.junkbusters.com/" target=_top>JunkBusters</A>,
<A HREF="http://math-www.uni-paderborn.de/~axel/NoShit/" target=_top>WebFilter</A>.
<LI>A very good introduction to WWW security problems: The
<A HREF="http://www.w3.org/Security/Faq/">web security
FAQ</A> from W3C.
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<!--- <TD><B>Contact:</B></TD> -->
<TD><IMG SRC="common-pix/email.gif" HEIGHT=52 WIDTH=45 ALIGN=CENTER></TD>
<TD><UL>
<LI>Olaf Gellert:
<A HREF="mailto:gellert@arasca.de">gellert@arasca.de</A>
<LI>Gregor Goldbach:
<A HREF="mailto:7goldbac@informatik.uni-hamburg.de">7goldbac@informatik.uni-hamburg.de</A>
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<P>Last changed: 22.08.2002.
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