<!entity fw-iptables1 SYSTEM "iptables-Introducao.sgml">
<!entity fw-iptables2 SYSTEM "iptables-chains.sgml">
<!entity fw-iptables3 SYSTEM "iptables-outras-opcoes.sgml">
<!entity fw-iptables4 SYSTEM "iptables-nat.sgml">
<!entity fw-iptables5 SYSTEM "iptables-mangle.sgml">
<!entity fw-iptables6 SYSTEM "iptables-matches.sgml">
<!entity fw-iptables7 SYSTEM "iptables-path.sgml">
<!entity fw-iptables8 SYSTEM "iptables-exemplo.sgml">
