<HTML ><HEAD ><TITLE >What is libiptc?</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="Querying libiptc HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Objectives" HREF="object.html"><LINK REL="NEXT" TITLE="How did I obtain this knowledge?" HREF="howdidi.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Querying libiptc HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="object.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="howdidi.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="WHATIS">6. What is libiptc?</H1 ><P ><EM >libiptc</EM > is the library that is used to communicate with netfilter, the internal kernel code in charge of firewalling and packet filtering. This code and <EM >iptables</EM > were written by Paul <SPAN CLASS="QUOTE" >"Rusty"</SPAN > Russell. <EM >iptables</EM > was developed using <EM >libiptc</EM > calls to get the job done.</P ><P >If you want to have more information about <EM >iptables</EM >, <EM >libiptc</EM > and the firewalling code, have a look at links at the end of this document.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="object.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="howdidi.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Objectives</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >How did I obtain this knowledge?</TD ></TR ></TABLE ></DIV ></BODY ></HTML >