?? iptables 簡介.mht
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<TD width=3D418>
<P><SPAN=20
style=3D"FONT-FAMILY: =B7s=B2=D3=A9=FA=C5=E9; FONT-SIZE: 12pt; =
mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times =
New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: =
1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; =
mso-bidi-language: AR-SA">=B6=C7=B5=B9</SPAN><SPAN=20
lang=3DEN-US=20
style=3D"FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; =
mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: =
ZH-TW; mso-bidi-language: AR-SA; mso-fareast-font-family: =
=B7s=B2=D3=A9=FA=C5=E9">User-Space</SPAN><SPAN=20
style=3D"FONT-FAMILY: =B7s=B2=D3=A9=FA=C5=E9; FONT-SIZE: 12pt; =
mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times =
New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: =
1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; =
mso-bidi-language: =
AR-SA">=AA=BA=C0=B3=A5=CE=B3n=C5=E9=B3B=B2z=B8=D3=AB=CA=A5]</SPAN></P></T=
D></TR></TBODY></TABLE>
<H3>Chains (=B3W=ABh=C3=EC)</H3>
<P>=A9w=B8q=A4F=A6b=AB=CA=A5]=B3z=B3q=A5=BB=BE=F7=AA=BA=B9L=B5{=A4=A4=A1A=
=A4=A3=A6P=AA=BA=AE=C9=BE=F7=A9=D2=ADn=A4=F1=B9=EF=AA=BA=B3W=ABh=B6=B5=A5=
=D8=B2=D5=A6X=A1CChains=A5i=A5H=A4=C0=A6=A8=A8=E2=BA=D8=A1G<B>=A4=BA=AB=D8=
=B3W=ABh=C3=EC (Build-in=20
Chains)</B>=BBP<B>=A8=CF=A5=CE=AA=CC=A9w=B8q=B3W=ABh=C3=EC(User-Defined =
Chains)</B>=A1C</P>
<P><B>=AA=ED=AE=E62 Build-in Chains =A4@=C4=FD=AA=ED</B></P>
<TABLE border=3D1 cellPadding=3D0 cellSpacing=3D0>
<TBODY>
<TR>
<TD bgColor=3D#cccccc width=3D132>
<P><B>Chains</B></P></TD>
<TD bgColor=3D#cccccc width=3D264>
<P><B>=B5o=A5=CD=AE=C9=BE=F7</B></P></TD>
<TD bgColor=3D#cccccc width=3D154>
<P><B>=BB=A1=A9=FA</B></P></TD></TR>
<TR>
<TD width=3D132>PREROUTING </TD>
<TD width=3D264>
<P>=AB=CA=A5]=B6i=A4J=A5=BB=BE=F7=AB=E1=A1A=B6i=A4JRoute =
Table=A4=F1=B9=EF=ABe</P></TD>
<TD width=3D154>
<P> </P></TD></TR>
<TR>
<TD width=3D132>
<P>INPUT</P></TD>
<TD width=3D264>
<P><SPAN=20
style=3D"FONT-FAMILY: =B7s=B2=D3=A9=FA=C5=E9; FONT-SIZE: 12pt; =
mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times =
New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: =
1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; =
mso-bidi-language: AR-SA">=B3q=B9L</SPAN>Route=20
Table=AB=E1=A1A=A5=D8=AA=BA=A6a=AC=B0=A5=BB=BE=F7</P></TD>
<TD width=3D154>
<P> </P></TD></TR>
<TR>
<TD width=3D132>
<P>OUTPUT</P></TD>
<TD width=3D264>
<P>=A5=D1=A5=BB=BE=F7=B5o=A5X=A1A=B6i=A4JRoute Table</P></TD>
<TD width=3D154>
<P> </P></TD></TR>
<TR>
<TD width=3D132>
<P>FORWARD</P></TD>
<TD width=3D264>
<P>=B3q=B9LRoute =
Table=AB=E1=A1A=A5=D8=AA=BA=A6a=A4=A3=ACO=A5=BB=BE=F7=AE=C9</P></TD>
<TD width=3D154>
<P> </P></TD></TR>
<TR>
<TD width=3D132>
<P>POSTROUTING></P></TD>
<TD width=3D264>
<P>=B3q=B9LRoute =
Table=AB=E1=A1A=B0e=A6=DC=BA=F4=B8=F4=A4=B6=AD=B1=A5d=ABe</P></TD>
<TD width=3D154>
<P> </P></TD></TR></TBODY></TABLE>
<P>=BD=D0=B0=D1=BE\=A4U=AD=B1=AA=BA=B9=CF</P>
<P>=B9=CF=AA=ED1 =AB=CA=A5]=B3z=B3q=ACy=B5{=B9=CF</P>
<P align=3Dcenter><IMG border=3D0 height=3D409=20
src=3D"http://www.savs.hcc.edu.tw/~chuavv/articles/netfilter.img/netfilte=
r1.gif"=20
width=3D576></P>
<H3>Tables (=B9L=C2o=AA=ED)</H3>
<P>=AB=CA=A5]=B3z=B3q=AE=C9=A1ANetFilter=B4=A3=A8=D1=A4T=BA=D8=AB=CA=A5]=B3=
B=B2z=AA=BA=A5\=AF=E0=A1G</P>
<UL>
<LI>=B9L=C2o=20
<LI>=C2=E0=C4=B6=20
<LI>=C5=DC=A7=F3=A9=CE=BC=D0=AA` </LI></UL>
<P>Netfilter=B3]=ADp=A4F=A4T=AD=D3Table=A8=D3=A5N=AA=ED=A4=A3=A6P=A5=D8=AA=
=BA=AA=BA=AB=CA=A5]=B3B=B2z=B9=EF=A7@=AE=C9=A1A=A9=D2=ADn=B3B=B2z=AA=BACh=
ains=B2=D5=A6X=A1C</P>
<P>=AA=ED=AE=E63 Table=BBP=AFS=A9wChains=AA=BA=C3=F6=ABY=AA=ED</P>
<TABLE border=3D1 cellPadding=3D0 cellSpacing=3D0>
<TBODY>
<TR>
<TD bgColor=3D#cccccc width=3D168>
<P><B>Table</B></P></TD>
<TD bgColor=3D#cccccc width=3D168>
<P><B>Chains</B></P></TD>
<TD bgColor=3D#cccccc width=3D214>
<P><B>=BB=A1=A9=FA</B></P></TD></TR>
<TR>
<TD width=3D168>
<P>filter (=B9L=C2o)</P></TD>
<TD width=3D168>
<P>INPUT<BR>FORWARD<BR>OUTPUT</P></TD>
<TD width=3D214>
<P> </P></TD></TR>
<TR>
<TD width=3D168>
<P>nat (=C2=E0=C4=B6)</P></TD>
<TD width=3D168>
<P>PREROUTING<BR>OUTPUT<BR>POSTROUTING</P></TD>
<TD width=3D214>
<P> </P></TD></TR>
<TR>
<TD width=3D168>
<P>mangle (=C5=DC=A7=F3=A9=CE=BC=D0=AA`)</P></TD>
<TD width=3D168>
<P>PREROUTING<BR>OUTPUT</P></TD>
<TD width=3D214>
<P> </P></TD></TR></TBODY></TABLE>
<P>Table=A6=B3=A4=A3=A6P=AA=BAExtension Target=A1G</P>
<P>=AA=ED=AE=E64 Table=AA=BA=A9=B5=A6=F9Target =A4@=C4=FD=AA=ED</P>
<TABLE border=3D1 cellPadding=3D0 cellSpacing=3D0>
<TBODY>
<TR>
<TD bgColor=3D#cccccc width=3D108>
<P><B>Table</B></P></TD>
<TD bgColor=3D#cccccc width=3D126>
<P><B>Target</B></P></TD>
<TD bgColor=3D#cccccc width=3D322>
<P><B>=BB=A1=A9=FA</B></P></TD></TR>
<TR>
<TD rowSpan=3D2 width=3D108>
<P>filter</P></TD>
<TD width=3D126>
<P>LOG</P></TD>
<TD width=3D322>
<P>=AC=F6=BF=FD=B8=D3=AB=CA=A5]=B8=EA=B0T</P></TD></TR>
<TR>
<TD width=3D126>
<P>REJECT</P></TD>
<TD width=3D322>
<P>=B0h=A6^=B8=D3=AB=CA=A5]</P></TD></TR>
<TR>
<TD rowSpan=3D4 width=3D108>
<P>nat</P></TD>
<TD>
<P>SNAT</P></TD>
<TD width=3D322>
<P>=C2=E0=C4=B6=A8=D3=B7=BD=A6=EC=A7}</P></TD></TR>
<TR>
<TD width=3D126>
<P>DNAT</P></TD>
<TD width=3D322>
<P>=C2=E0=C4=B6=A5=D8=AA=BA=A6=EC=A7}</P></TD></TR>
<TR>
<TD width=3D126>
<P>MASQUERADE</P></TD>
<TD width=3D322>
=
<P>=C2=E0=C4=B6=A8=D3=B7=BD=A6=EC=A7}=A6=A8=AC=B0NIC=AA=BA=A6=EC=A7}</P><=
/TD></TR>
<TR>
<TD width=3D126>
<P>REDIRECT</P></TD>
<TD width=3D322>
<P>=C2=E0=B0e=A6=DC=A5=BB=BE=F7=ACY=AD=D3Port</P></TD></TR>
<TR>
<TD rowSpan=3D3 width=3D108>
<P>mangle</P></TD>
<TD width=3D126>
<P>TTL</P></TD>
<TD width=3D322>
<P>=AD=D7=A7=EFTime To Live=B8=EA=B0T</P></TD></TR>
<TR>
<TD width=3D126>
<P>MARK</P></TD>
<TD width=3D322>
<P>=BC=D0=B0O=B8=D3=AB=CA=A5]</P></TD></TR>
<TR>
<TD width=3D126>
<P>TOS</P></TD>
<TD width=3D322>
<P>=B3]=A9wType Of Service=B8=EA=B0T</P></TD></TR></TBODY></TABLE>
<H2>=AB=FC=A5O</H2>
<P>iptables=BBy=AAk=A1G</P>
<BLOCKQUOTE>
<P><B>iptables [-t TABLE] ACTION [PATTERN] [-j =
TARGET</B>]</P></BLOCKQUOTE>
<H3>TABLE</H3>
<P>=B0w=B9=EF=ADn=B2=D5=BAA=AA=BATable=A6W=BA=D9(filter=A1Bnat=A1Bmangle)=
=A1A=ADY=B5L=AB=FC=A9w=A1A=B9w=B3]=AC=B0filter Table=A1C</P>
<H3>ACTION</H3>
<P>=ADn=BE=DE=A7@=AA=BA=B0=CA=A7@=A1A=ADY=AC=B0=AB=FC=A9w=B9=EF=AD=FE=AD=D3=
Chain=A1A=ABh=AC=B0=B8=D3Table=A4=A4=A9=D2=A6=B3=AA=BAChains=A1C=B1`=A5=CE=
=AA=BA=BE=DE=A7@=AB=FC=A5O=A5]=A7t</P>
<TABLE border=3D1 cellPadding=3D0 cellSpacing=3D0>
<TBODY>
<TR>
<TD bgColor=3D#cccccc width=3D156>
<P><B>ACTION</B></P></TD>
<TD bgColor=3D#cccccc width=3D394>
<P><B>=BB=A1=A9=FA</B></P></TD></TR>
<TR>
<TD width=3D156>
<P>-L CHAIN</P></TD>
<TD width=3D394>
<P>=C5=E3=A5=DCCHAIN=A4=A4=AA=BA=A9=D2=A6=B3=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-A CHAIN</P></TD>
<TD width=3D394>
<P>=B9=EFCHAIN=B7s=BCW=A4@=B1=F8=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-D CHAIN</P></TD>
<TD width=3D394>
<P>=A7R=B0=A3CHAIN=A4=A4=AA=BA=A4@=B1=F8=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-I CHAIN</P></TD>
<TD width=3D394>
<P>=A6bCHAIN=A4=A4=B4=A1=A4J=A4@=B1=F8=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-R CHAIN</P></TD>
<TD width=3D394>
=
<P>=B4=C0=B4=ABCHAIN=A4=A4=AA=BA=ACY=A4@=B1=F8=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-P CHAIN</P></TD>
<TD width=3D394>
<P>=B9=EFCHAIN=B3]=A9w=B9w=B3]=AA=BAPolicy</P></TD></TR>
<TR>
<TD width=3D156>
<P>-F CHAIN</P></TD>
<TD width=3D394>
<P>=B2M=B0=A3CHAIN=A4=A4=A9=D2=A6=B3=B3W=ABh</P></TD></TR>
<TR>
<TD width=3D156>
<P>-N CHAIN</P></TD>
<TD width=3D394>
<P>=A6=DB=ADq=A4@=AD=D3CHAIN</P></TD></TR>
<TR>
<TD width=3D156>
<P>-X</P></TD>
<TD width=3D394>
=
<P>=B2M=B0=A3=A9=D2=A6=B3=AA=BA=A6=DB=ADqCHAIN</P></TD></TR></TBODY></TAB=
LE>
<H3>PATTERN</H3>
<P>=AA=ED=AE=E65 =B3]=A9w=A4=F1=B9=EF=B1=F8=A5=F3=AA=BA=B0=D1=BC=C6</P>
<TABLE border=3D1 cellPadding=3D0 cellSpacing=3D0>
<TBODY>
<TR>
<TD bgColor=3D#cccccc width=3D72>
<P><B>=B5u=B0=D1=BC=C6</B></P></TD>
<TD bgColor=3D#cccccc width=3D108>
<P><B>=AA=F8=B0=D1=BC=C6</B></P></TD>
<TD bgColor=3D#cccccc width=3D120>
<P><B>=A4=BA=AEe</B></P></TD>
<TD bgColor=3D#cccccc width=3D261>
<P><B>=BB=A1=A9=FA</B></P></TD></TR>
<TR>
<TD width=3D72>
<P>-p</P></TD>
<TD width=3D108>
<P>--protocol</P></TD>
<TD width=3D120>
<P>PROTOCOL</P></TD>
<TD width=3D261>
<P>=B3q=B0T=A8=F3=A9w=AC=B0PROTOCOL=AA=CC=A1APROTOCOL: tcp, udp, =
icmp,=20
=
all=A9=CE=AA=CC=AC=B0/etc/protocols=A4=BA=A9=D2=B0O=BF=FD=AA=BA=A8=F3=A9w=
</P></TD></TR>
<TR>
<TD width=3D72>
<P>-s</P></TD>
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