2 .\" Man page written by Herve Eychenne <rv@wallfire.org> (May 1999)
3 .\" It is based on ipchains page.
4 .\" TODO: add a word for protocol helpers (FTP, IRC, SNMP-ALG)
6 .\" ipchains page by Paul ``Rusty'' Russell March 1997
7 .\" Based on the original ipfwadm man page by Jos Vos <jos@xos.nl>
9 .\" This program is free software; you can redistribute it and/or modify
10 .\" it under the terms of the GNU General Public License as published by
11 .\" the Free Software Foundation; either version 2 of the License, or
12 .\" (at your option) any later version.
14 .\" This program is distributed in the hope that it will be useful,
15 .\" but WITHOUT ANY WARRANTY; without even the implied warranty of
16 .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 .\" GNU General Public License for more details.
19 .\" You should have received a copy of the GNU General Public License
20 .\" along with this program; if not, write to the Free Software
21 .\" Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 .\" Japanese Version Copyright (c) 2001, 2004 Yuichi SATO
25 .\" all right reserved.
26 .\" Translated Sun Jul 29 01:03:37 JST 2001
27 .\" by Yuichi SATO <ysato@h4.dion.ne.jp>
28 .\" Updated & Modified Wed Sep 12 06:22:55 JST 2001 by Yuichi SATO
29 .\" Updated on Wed May 28 01:51:45 JST 2003 by
30 .\" System Design and Research Institute Co., Ltd.
31 .\" Updated & Modified Sat Feb 21 23:28:25 JST 2004
32 .\" by Yuichi SATO <ysato444@yahoo.co.jp>
34 .\"WORD: chain ¥Á¥§¥¤¥ó
35 .\"WORD: built-in chain ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó
36 .\"WORD: connection tracking ÀܳÄÉÀ×
37 .\"WORD: enslave ¥¹¥ì¡¼¥Ö¤Ë¤¹¤ë
38 .\"WORD: infrastructure ´ðÈ×
39 .\"WORD: round-robin ¥é¥¦¥ó¥É¡¦¥í¥Ó¥ó
40 .\"WORD: rule traverse ¥ë¡¼¥ë¤Î¸¡Æ¤
41 .\"WORD: non-terminating target Èó½ªÎ»¥¿¡¼¥²¥Ã¥È
42 .\"WORD: criteria ȽÃÇ(¤¹¤ë)´ð½à
44 .TH IPTABLES 8 "Mar 09, 2002" "" ""
46 iptables \- IPv4 ¤Î¥Ñ¥±¥Ã¥È¥Õ¥£¥ë¥¿¤È NAT ¤ò´ÉÍý¤¹¤ë¥Ä¡¼¥ë
48 .BR "iptables [-t table] -[AD] " "¥Á¥§¥¤¥ó ¥ë¡¼¥ë¤Î¾ÜºÙ [¥ª¥×¥·¥ç¥ó]"
50 .BR "iptables [-t table] -I " "¥Á¥§¥¤¥ó [¥ë¡¼¥ëÈÖ¹æ] ¥ë¡¼¥ë¤Î¾ÜºÙ [¥ª¥×¥·¥ç¥ó]"
52 .BR "iptables [-t table] -R " "¥Á¥§¥¤¥ó ¥ë¡¼¥ëÈÖ¹æ ¥ë¡¼¥ë¤Î¾ÜºÙ [¥ª¥×¥·¥ç¥ó]"
54 .BR "iptables [-t table] -D " "¥Á¥§¥¤¥ó ¥ë¡¼¥ëÈÖ¹æ [¥ª¥×¥·¥ç¥ó]"
56 .BR "iptables [-t table] -[LFZ] " "[¥Á¥§¥¤¥ó] [¥ª¥×¥·¥ç¥ó]"
58 .BR "iptables [-t table] -N " "¥Á¥§¥¤¥ó"
60 .BR "iptables [-t table] -X " "[¥Á¥§¥¤¥ó]"
62 .BR "iptables [-t table] -P " "¥Á¥§¥¤¥ó ¥¿¡¼¥²¥Ã¥È [¥ª¥×¥·¥ç¥ó]"
64 .BR "iptables [-t table] -E " "µì¥Á¥§¥¤¥ó̾ ¿·¥Á¥§¥¤¥ó̾"
67 ¤Ï Linux ¥«¡¼¥Í¥ë¤Î IP ¥Ñ¥±¥Ã¥È¥Õ¥£¥ë¥¿¥ë¡¼¥ë¤Î¥Æ¡¼¥Ö¥ë¤ò
68 ÀßÄꡦ´ÉÍý¡¦¸¡ºº¤¹¤ë¤¿¤á¤Ë»È¤ï¤ì¤ë¡£
69 Ê£¿ô¤Î°Û¤Ê¤ë¥Æ¡¼¥Ö¥ë¤òÄêµÁ¤Ç¤¤ë¡£
70 ³Æ¥Æ¡¼¥Ö¥ë¤Ë¤Ï¤¿¤¯¤µ¤ó¤ÎÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤¬´Þ¤Þ¤ì¤Æ¤ª¤ê¡¢
71 ¤µ¤é¤Ë¥æ¡¼¥¶¡¼ÄêµÁ¤Î¥Á¥§¥¤¥ó¤ò²Ã¤¨¤ë¤³¤È¤â¤Ç¤¤ë¡£
73 ³Æ¥Á¥§¥¤¥ó¤Ï¡¢¥Ñ¥±¥Ã¥È·²¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ë¡¼¥ë¤Î¥ê¥¹¥È¤Ç¤¢¤ë¡£
74 ³Æ¥ë¡¼¥ë¤Ï¥Þ¥Ã¥Á¤·¤¿¥Ñ¥±¥Ã¥È¤ËÂФ·¤Æ²¿¤ò¤¹¤ë¤«¤ò»ØÄꤹ¤ë¡£
75 ¤³¤ì¤Ï¡Ö¥¿¡¼¥²¥Ã¥È¡×¤È¸Æ¤Ð¤ì¡¢
76 Ʊ¤¸¥Æ¡¼¥Ö¥ëÆâ¤Î¥æ¡¼¥¶¡¼ÄêµÁ¥Á¥§¥¤¥ó¤Ë¥¸¥ã¥ó¥×¤¹¤ë¤³¤È¤â¤Ç¤¤ë¡£
79 ¤Ò¤È¤Ä¤Î¥Õ¥¡¥¤¥¢¥¦¥©¡¼¥ë¥ë¡¼¥ë¤Ç¤Ï¡¢
80 ¥Ñ¥±¥Ã¥È¤òȽÃǤ¹¤ë´ð½à¤È¥¿¡¼¥²¥Ã¥È¤È¤¬»ØÄꤵ¤ì¤ë¡£
81 ¥Ñ¥±¥Ã¥È¤¬¥Þ¥Ã¥Á¤·¤Ê¤¤¾ì¹ç¡¢¥Á¥§¥¤¥óÆâ¤Î¼¡¤Î¥ë¡¼¥ë¤¬É¾²Á¤µ¤ì¤ë¡£
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94 ¤Ï¥Ñ¥±¥Ã¥È¤ò¾²¤ËÍ (¼Î¤Æ¤ë) ¤È¤¤¤¦°ÕÌ£¤Ç¤¢¤ë¡£
96 ¤Ï¥Ñ¥±¥Ã¥È¤ò¥æ¡¼¥¶¡¼¶õ´Ö¤ËÅϤ¹¤È¤¤¤¦°ÕÌ£¤Ç¤¢¤ë
97 (¥«¡¼¥Í¥ë¤¬¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ì¤Ð¤Ç¤¢¤ë¤¬)¡£
99 ¤Ï¡¢¤³¤Î¥Á¥§¥¤¥ó¤Î¸¡Æ¤¤òÃæ»ß¤·¤Æ¡¢
100 °ÊÁ°¤Î (¸Æ¤Ó½Ð¤·¸µ) ¥Á¥§¥¤¥óÆâ¤Î
101 ¼¡¤Î¥ë¡¼¥ë¤«¤é¸¡Æ¤¤òºÆ³«¤¹¤ë¤È¤¤¤¦°ÕÌ£¤Ç¤¢¤ë¡£
102 ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤ÎºÇ¸å¤ËÅþ㤷¤¿¾ì¹ç¡¢
103 ¤Þ¤¿¤ÏÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤Ç¥¿¡¼¥²¥Ã¥È
105 ¤ò»ý¤Ä¥ë¡¼¥ë¤Ë¥Þ¥Ã¥Á¤·¤¿¾ì¹ç¡¢
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107 ¥Ñ¥±¥Ã¥È¤Î¹ÔÊý¤ò·èÄꤹ¤ë¡£
109 ¸½ºß¤Î¤È¤³¤í 3 ¤Ä¤ÎÆÈΩ¤Ê¥Æ¡¼¥Ö¥ë¤¬Â¸ºß¤¹¤ë
110 (¤¢¤ë»þÅÀ¤Ç¤É¤Î¥Æ¡¼¥Ö¥ë¤¬Â¸ºß¤¹¤ë¤«¤Ï¡¢
111 ¥«¡¼¥Í¥ë¤ÎÀßÄê¤ä¤É¤¦¤¤¤Ã¤¿¥â¥¸¥å¡¼¥ë¤¬Â¸ºß¤¹¤ë¤«¤Ë°Í¸¤¹¤ë)¡£
113 .BI "-t, --table " "table"
114 ¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¡¢¤³¤Î¥³¥Þ¥ó¥É¤òŬÍѤ¹¤ë
115 ¥Ñ¥±¥Ã¥È¥Þ¥Ã¥Á¥ó¥°¥Æ¡¼¥Ö¥ë¤ò»ØÄꤹ¤ë¡£
116 ¥«¡¼¥Í¥ë¤Ë¼«Æ°¥â¥¸¥å¡¼¥ë¥í¡¼¥Ç¥£¥ó¥°¤¬ÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢
117 ¤½¤Î¥Æ¡¼¥Ö¥ë¤ËÂФ¹¤ëŬÀڤʥ⥸¥å¡¼¥ë¤¬¤Þ¤À¥í¡¼¥É¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¡¢
118 ¤½¤Î¥â¥¸¥å¡¼¥ë¤¬¥í¡¼¥É¤µ¤ì¤ë¡£
120 ¥Æ¡¼¥Ö¥ë¤Ï°Ê²¼¤ÎÄ̤ê¤Ç¤¢¤ë¡£
124 (\-t ¥ª¥×¥·¥ç¥ó¤¬ÅϤµ¤ì¤Ê¤±¤ì¤Ð) ¤³¤ì¤¬¥Ç¥Õ¥©¥ë¥È¤Î¥Æ¡¼¥Ö¥ë¤Ç¤¢¤ë¡£
127 (¥Þ¥·¥ó¼«ÂΤËÆþ¤Ã¤Æ¤¯¤ë¥Ñ¥±¥Ã¥È¤ËÂФ¹¤ë¥Á¥§¥¤¥ó)¡¦
129 (¥Þ¥·¥ó¤ò·Ðͳ¤¹¤ë¥Ñ¥±¥Ã¥È¤ËÂФ¹¤ë¥Á¥§¥¤¥ó)¡¦
131 (¥í¡¼¥«¥ë¥Þ¥·¥ó¤ÇÀ¸À®¤µ¤ì¤¿¥Ñ¥±¥Ã¥È¤ËÂФ¹¤ë¥Á¥§¥¤¥ó)
132 ¤È¤¤¤¦ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤¬´Þ¤Þ¤ì¤ë¡£
135 ¤³¤Î¥Æ¡¼¥Ö¥ë¤Ï¿·¤·¤¤Àܳ¤ò³«¤¯¤è¤¦¤Ê¥Ñ¥±¥Ã¥È¤ËÂФ·¤Æ»²¾È¤µ¤ì¤ë¡£
138 (¥Ñ¥±¥Ã¥È¤¬Æþ¤Ã¤Æ¤¤¿¾ì¹ç¡¢¤¹¤°¤Ë¤½¤Î¥Ñ¥±¥Ã¥È¤òÊÑ´¹¤¹¤ë¤¿¤á¤Î¥Á¥§¥¤¥ó)¡¦
140 (¥í¡¼¥«¥ë¤ÇÀ¸À®¤µ¤ì¤¿¥Ñ¥±¥Ã¥È¤ò¥ë¡¼¥Æ¥£¥ó¥°¤ÎÁ°¤ËÊÑ´¹¤¹¤ë¤¿¤á¤Î¥Á¥§¥¤¥ó)¡¦
142 (¥Ñ¥±¥Ã¥È¤¬½Ð¤Æ¹Ô¤¯¤È¤¤ËÊÑ´¹¤¹¤ë¤¿¤á¤Î¥Á¥§¥¤¥ó)
143 ¤È¤¤¤¦ 3 ¤Ä¤ÎÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤¬´Þ¤Þ¤ì¤ë¡£
146 ¤³¤Î¥Æ¡¼¥Ö¥ë¤ÏÆÃÊ̤ʥѥ±¥Ã¥ÈÊÑ´¹¤Ë»È¤ï¤ì¤ë¡£
147 ¤³¤ì¤Ë¤Ï¡¢¥«¡¼¥Í¥ë 2.4.17 ¤Þ¤Ç¤Ï
149 (¥Ñ¥±¥Ã¥È¤¬Æþ¤Ã¤Æ¤¤¿¾ì¹ç¡¢¤¹¤°¤Ë¤½¤Î¥Ñ¥±¥Ã¥È¤òÊÑ´¹¤¹¤ë¤¿¤á¤Î¥Á¥§¥¤¥ó)¡¦
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152 ¤È¤¤¤¦ 2 ¤Ä¤ÎÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤¬´Þ¤Þ¤ì¤ë¡£
153 ¥«¡¼¥Í¥ë 2.4.18 ¤«¤é¤Ï¡¢¤³¤ì¤é¤Î¾¤Ë
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159 (¥Ñ¥±¥Ã¥È¤¬½Ð¤Æ¹Ô¤¯¤È¤¤ËÊÑ´¹¤¹¤ë¤¿¤á¤Î¥Á¥§¥¤¥ó)
160 ¤È¤¤¤¦ 3 ¤Ä¤ÎÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤â´Þ¤Þ¤ì¤ë¡£
164 ¤Ç»È¤¨¤ë¥ª¥×¥·¥ç¥ó¤Ï¡¢¤¤¤¯¤Ä¤«¤Î¥°¥ë¡¼¥×¤Ëʬ¤±¤é¤ì¤ë¡£
166 ¤³¤ì¤é¤Î¥ª¥×¥·¥ç¥ó¤Ï¡¢¼Â¹Ô¤¹¤ëÆÃÄê¤ÎÆ°ºî¤ò»ØÄꤹ¤ë¡£
167 °Ê²¼¤ÎÀâÌÀ¤ÇÃíµ¤µ¤ì¤Æ¤¤¤Ê¤¤¸Â¤ê¡¢
168 ¥³¥Þ¥ó¥É¥é¥¤¥ó¤Ç»ØÄê¤Ç¤¤ë¤Î¤Ï¤³¤ÎÃæ¤Î 1 ¤Ä¤À¤±¤Ç¤¢¤ë¡£
169 Ť¤¥Ð¡¼¥¸¥ç¥ó¤Î¥³¥Þ¥ó¥É̾¤È¥ª¥×¥·¥ç¥ó̾¤Ï¡¢
171 ¤¬Â¾¤Î¥³¥Þ¥ó¥É̾¤ä¥ª¥×¥·¥ç¥ó̾¤È¶èÊ̤Ǥ¤ëÈϰϤÇ
172 (ʸ»ú¤ò¾Êά¤·¤Æ) »ØÄꤹ¤ë¤³¤È¤â¤Ç¤¤ë¡£
174 .BI "-A, --append " "¥Á¥§¥¤¥ó ¥ë¡¼¥ë¤Î¾ÜºÙ"
175 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó¤ÎºÇ¸å¤Ë 1 ¤Ä°Ê¾å¤Î¥ë¡¼¥ë¤òÄɲ乤롣
176 Á÷¿®¸µ¤äÁ÷¿®Àè¤Î̾Á°¤¬ 1 ¤Ä°Ê¾å¤Î¥¢¥É¥ì¥¹¤Ë²ò·è¤µ¤ì¤¿¾ì¹ç¤Ï¡¢
177 ²Äǽ¤Ê¥¢¥É¥ì¥¹¤ÎÁȹ礻¤½¤ì¤¾¤ì¤ËÂФ·¤Æ¥ë¡¼¥ë¤¬Äɲ䵤ì¤ë¡£
179 .BI "-D, --delete " "¥Á¥§¥¤¥ó ¥ë¡¼¥ë¤Î¾ÜºÙ"
182 .BI "-D, --delete " "¥Á¥§¥¤¥ó ¥ë¡¼¥ëÈÖ¹æ"
183 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó¤«¤é 1 ¤Ä°Ê¾å¤Î¥ë¡¼¥ë¤òºï½ü¤¹¤ë¡£
184 ¤³¤Î¥³¥Þ¥ó¥É¤Ë¤Ï 2 ¤Ä¤Î»È¤¤Êý¤¬¤¢¤ë:
185 ¥Á¥§¥¤¥ó¤ÎÃæ¤ÎÈÖ¹æ (ºÇ½é¤Î¥ë¡¼¥ë¤ò 1 ¤È¤¹¤ë) ¤ò»ØÄꤹ¤ë¾ì¹ç¤È¡¢
186 ¥Þ¥Ã¥Á¤¹¤ë¥ë¡¼¥ë¤ò»ØÄꤹ¤ë¾ì¹ç¤Ç¤¢¤ë¡£
188 .BR "-I, --insert " "\fI¥Á¥§¥¤¥ó\fP [\fI¥ë¡¼¥ëÈÖ¹æ\fP] \fI¥ë¡¼¥ë¤Î¾ÜºÙ"
189 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó¤Ë¥ë¡¼¥ëÈÖ¹æ¤ò»ØÄꤷ¤Æ 1 ¤Ä°Ê¾å¤Î¥ë¡¼¥ë¤òÁÞÆþ¤¹¤ë¡£
190 ¥ë¡¼¥ëÈֹ椬 1 ¤Î¾ì¹ç¡¢¥ë¡¼¥ë¤Ï¥Á¥§¥¤¥ó¤ÎÀèƬ¤ËÁÞÆþ¤µ¤ì¤ë¡£
191 ¤³¤ì¤Ï¥ë¡¼¥ëÈֹ椬»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¤Î¥Ç¥Õ¥©¥ë¥È¤Ç¤â¤¢¤ë¡£
193 .BI "-R, --replace " "¥Á¥§¥¤¥ó ¥ë¡¼¥ëÈÖ¹æ ¥ë¡¼¥ë¤Î¾ÜºÙ"
194 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó¤Ç¥ë¡¼¥ë¤òÃÖ´¹¤¹¤ë¡£
195 Á÷¿®¸µ¤äÁ÷¿®Àè¤Î̾Á°¤¬ 1 ¤Ä°Ê¾å¤Î¥¢¥É¥ì¥¹¤Ë²ò·è¤µ¤ì¤¿¾ì¹ç¤Ï¡¢
196 ¤³¤Î¥³¥Þ¥ó¥É¤Ï¼ºÇÔ¤¹¤ë¡£¥ë¡¼¥ëÈÖ¹æ¤Ï 1 ¤«¤é¤Ï¤¸¤Þ¤ë¡£
198 .BR "-L, --list " "[\fI¥Á¥§¥¤¥ó\fP]"
199 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó¤Ë¤¢¤ëÁ´¤Æ¤Î¥ë¡¼¥ë¤ò°ìÍ÷ɽ¼¨¤¹¤ë¡£
200 ¥Á¥§¥¤¥ó¤¬»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢Á´¤Æ¤Î¥Á¥§¥¤¥ó¤Ë¤¢¤ë¥ê¥¹¥È¤¬°ìÍ÷ɽ¼¨¤µ¤ì¤ë¡£
201 ¾¤Î³Æ iptables ¥³¥Þ¥ó¥É¤ÈƱÍͤˡ¢»ØÄꤵ¤ì¤¿¥Æ¡¼¥Ö¥ë
202 (¥Ç¥Õ¥©¥ë¥È¤Ï filter) ¤ËÂФ·¤ÆºîÍѤ¹¤ë¡£
203 ¤è¤Ã¤Æ NAT ¥ë¡¼¥ë¤òɽ¼¨¤¹¤ë¤Ë¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤¹¤ë¡£
205 iptables -t nat -n -L
207 DNS¤ÎµÕ°ú¤¤òÈò¤±¤ë¤¿¤á¤Ë¡¢¤è¤¯
209 ¥ª¥×¥·¥ç¥ó¤È¶¦¤Ë»ÈÍѤµ¤ì¤ë¡£
211 (¥¼¥í²½) ¥ª¥×¥·¥ç¥ó¤òƱ»þ¤Ë»ØÄꤹ¤ë¤³¤È¤â¤Ç¤¤ë¡£
212 ¤³¤Î¾ì¹ç¡¢¥Á¥§¥¤¥ó¤ÏÍ×ÁÇËè¤Ë¥ê¥¹¥È¤µ¤ì¤Æ¡¢
213 (ÌõÃð: ¥Ñ¥±¥Ã¥È¥«¥¦¥ó¥¿¤È¥Ð¥¤¥È¥«¥¦¥ó¥¿¤¬) ¥¼¥í¤Ë¤µ¤ì¤ë¡£
214 ½ÐÎÏɽ¼¨¤ÏƱ»þ¤ËÍ¿¤¨¤é¤ì¤¿Â¾¤Î°ú¤¿ô¤Ë±Æ¶Á¤µ¤ì¤ë¡£
218 ¤ò»È¤ï¤Ê¤¤¸Â¤ê (ÌõÃí: -v ¥ª¥×¥·¥ç¥ó¤ò»ØÄꤷ¤Ê¤¤¸Â¤ê)¡¢
219 ¼ÂºÝ¤Î¥ë¡¼¥ë¤½¤Î¤â¤Î¤Ïɽ¼¨¤µ¤ì¤Ê¤¤¡£
221 .BR "-F, --flush " "[\fI¥Á¥§¥¤¥ó\fP]"
222 ÁªÂò¤µ¤ì¤¿¥Á¥§¥¤¥ó(²¿¤â»ØÄꤷ¤Ê¤±¤ì¤Ð¥Æ¡¼¥Ö¥ëÆâ¤ÎÁ´¤Æ¤Î¥Á¥§¥¤¥ó)
224 ¤³¤ì¤ÏÁ´¤Æ¤Î¥ë¡¼¥ë¤ò 1 ¸Ä¤º¤Äºï½ü¤¹¤ë¤Î¤ÈƱ¤¸¤Ç¤¢¤ë¡£
226 .BR "-Z, --zero " "[\fI¥Á¥§¥¤¥ó\fP]"
227 ¤¹¤Ù¤Æ¤Î¥Á¥§¥¤¥ó¤Î¥Ñ¥±¥Ã¥È¥«¥¦¥ó¥¿¤È¥Ð¥¤¥È¥«¥¦¥ó¥¿¤ò¥¼¥í¤Ë¤¹¤ë¡£
228 ¥¯¥ê¥¢¤µ¤ì¤ëľÁ°¤Î¥«¥¦¥ó¥¿¤ò¸«¤ë¤¿¤á¤Ë¡¢
230 (°ìÍ÷ɽ¼¨) ¥ª¥×¥·¥ç¥ó¤ÈƱ»þ¤Ë»ØÄꤹ¤ë¤³¤È¤â¤Ç¤¤ë (¾åµ¤ò»²¾È)¡£
232 .BI "-N, --new-chain " "¥Á¥§¥¤¥ó"
233 »ØÄꤷ¤¿Ì¾Á°¤Ç¥æ¡¼¥¶¡¼ÄêµÁ¥Á¥§¥¤¥ó¤òºîÀ®¤¹¤ë¡£
234 Ʊ¤¸Ì¾Á°¤Î¥¿¡¼¥²¥Ã¥È¤¬´û¤Ë¸ºß¤·¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
236 .BR "-X, --delete-chain " "[\fI¥Á¥§¥¤¥ó\fP]"
237 »ØÄꤷ¤¿¥æ¡¼¥¶¡¼ÄêµÁ¥Á¥§¥¤¥ó¤òºï½ü¤¹¤ë¡£
238 ¤½¤Î¥Á¥§¥¤¥ó¤¬»²¾È¤µ¤ì¤Æ¤¤¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
239 ¥Á¥§¥¤¥ó¤òºï½ü¤¹¤ëÁ°¤Ë¡¢¤½¤Î¥Á¥§¥¤¥ó¤ò»²¾È¤·¤Æ¤¤¤ë¥ë¡¼¥ë¤ò
240 ºï½ü¤¹¤ë¤«ÃÖ¤´¹¤¨¤ë¤«¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
241 °ú¤¿ô¤¬Í¿¤¨¤é¤ì¤Ê¤¤¾ì¹ç¡¢¥Æ¡¼¥Ö¥ë¤Ë¤¢¤ë¥Á¥§¥¤¥ó¤Î¤¦¤Á
242 ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤Ç¤Ê¤¤¤â¤Î¤òÁ´¤Æºï½ü¤¹¤ë¡£
244 .BI "-P, --policy " "¥Á¥§¥¤¥ó ¥¿¡¼¥²¥Ã¥È"
245 ¥Á¥§¥¤¥ó¤Î¥Ý¥ê¥·¡¼¤ò¡¢»ØÄꤷ¤¿¥¿¡¼¥²¥Ã¥È¤ËÀßÄꤹ¤ë¡£
246 »ØÄê²Äǽ¤Ê¥¿¡¼¥²¥Ã¥È¤Ï¡Ö\fB¥¿¡¼¥²¥Ã¥È\fR¡×¤Î¾Ï¤ò»²¾È¤¹¤ë¤³¤È¡£
247 (¥æ¡¼¥¶¡¼ÄêµÁ¤Ç¤Ï¤Ê¤¤)ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤Ë¤·¤«¥Ý¥ê¥·¡¼¤ÏÀßÄê¤Ç¤¤Ê¤¤¡£
248 ¤Þ¤¿¡¢ÁȤ߹þ¤ßºÑ¤ß¥Á¥§¥¤¥ó¤â¥æ¡¼¥¶¡¼ÄêµÁ¥Á¥§¥¤¥ó¤â
249 ¥Ý¥ê¥·¡¼¤Î¥¿¡¼¥²¥Ã¥È¤ËÀßÄꤹ¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¡£
251 .BI "-E, --rename-chain " "µì¥Á¥§¥¤¥ó̾ ¿·¥Á¥§¥¤¥ó̾"
252 ¥æ¡¼¥¶¡¼ÄêµÁ¥Á¥§¥¤¥ó¤ò»ØÄꤷ¤¿Ì¾Á°¤ËÊѹ¹¤¹¤ë¡£
253 ¤³¤ì¤Ï¸«¤¿ÌܤÀ¤±¤ÎÊѹ¹¤Ê¤Î¤Ç¡¢¥Æ¡¼¥Ö¥ë¤Î¹½Â¤¤Ë¤Ï²¿¤â±Æ¶Á¤·¤Ê¤¤¡£
257 (º£¤Î¤È¤³¤í¤Ï¤È¤Æ¤â´Êñ¤Ê) ¥³¥Þ¥ó¥É½ñ¼°¤ÎÀâÌÀ¤òɽ¼¨¤¹¤ë¡£
259 °Ê²¼¤Î¥Ñ¥é¥á¡¼¥¿¤Ï (add, delete, insert,
260 replace, append ¥³¥Þ¥ó¥É¤ÇÍѤ¤¤é¤ì¤Æ) ¥ë¡¼¥ë¤Î»ÅÍͤò·è¤á¤ë¡£
262 .BR "-p, --protocol " "[!] \fIprotocol\fP"
263 ¥ë¡¼¥ë¤Ç»È¤ï¤ì¤ë¥×¥í¥È¥³¥ë¡¢¤Þ¤¿¤Ï¥Á¥§¥Ã¥¯¤µ¤ì¤ë¥Ñ¥±¥Ã¥È¤Î¥×¥í¥È¥³¥ë¡£
264 »ØÄê¤Ç¤¤ë¥×¥í¥È¥³¥ë¤Ï¡¢
269 ¤Î¤¤¤º¤ì¤« 1 ¤Ä¤«¡¢¿ôÃͤǤ¢¤ë¡£
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847 Linux ¥«¡¼¥Í¥ë¤Ï¥Þ¥Ã¥Á¤·¤¿¥Ñ¥±¥Ã¥È¤Ë¤Ä¤¤¤Æ¤Î
848 (ÂçÉôʬ¤Î IP ¥Ø¥Ã¥À¡¼¥Õ¥£¡¼¥ë¥É¤Î¤è¤¦¤Ê) ²¿¤é¤«¤Î¾ðÊó¤ò
849 ¥«¡¼¥Í¥ë¥í¥°¤Ëɽ¼¨¤¹¤ë
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855 ¤³¤ì¤Ï "Èó½ªÎ»¥¿¡¼¥²¥Ã¥È" ¤Ç¤¢¤ë¡£
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858 Ʊ¤¸¥Þ¥Ã¥Á¥ó¥°È½ÃÇ´ð½à¤ò»ý¤Ä 2 ¤Ä¤Î¥ë¡¼¥ë¤ò»ÈÍѤ·¡¢
859 ºÇ½é¤Î¥ë¡¼¥ë¤Ç LOG ¥¿¡¼¥²¥Ã¥È¤ò¡¢
860 ¼¡¤Î¥ë¡¼¥ë¤Ç DROP (¤Þ¤¿¤Ï REJECT) ¥¿¡¼¥²¥Ã¥È¤ò»ØÄꤹ¤ë¡£
862 .BI "--log-level " "level"
863 ¥í¥°µÏ¿¤Î¥ì¥Ù¥ë (¿ôÃͤƻØÄꤹ¤ë¤«¡¢
864 (ÌõÃð: ̾Á°¤Ç»ØÄꤹ¤ë¾ì¹ç¤Ï) \fIsyslog.conf\fP(5) ¤ò»²¾È¤¹¤ë¤³¤È)¡£
866 .BI "--log-prefix " "prefix"
867 »ØÄꤷ¤¿¥×¥ì¥Õ¥£¥Ã¥¯¥¹¤ò¥í¥°¥á¥Ã¥»¡¼¥¸¤ÎÁ°¤ËÉÕ¤±¤ë¡£
868 ¥×¥ì¥Õ¥£¥Ã¥¯¥¹¤Ï 29 ʸ»ú¤Þ¤Ç¤ÎŤµ¤Ç¡¢
869 ¥í¥°¤ÎÃæ¤Ç¥á¥Ã¥»¡¼¥¸¤ò¶èÊ̤¹¤ë¤Î¤ËÌòΩ¤Ä¡£
871 .B --log-tcp-sequence
872 TCP ¥·¡¼¥±¥ó¥¹ÈÖ¹æ¤ò¥í¥°¤ËµÏ¿¤¹¤ë¡£
873 ¥í¥°¤¬¥æ¡¼¥¶¡¼¤«¤éÆɤá¤ë¾ì¹ç¡¢¥»¥¥å¥ê¥Æ¥£¾å¤Î´í¸±¤¬¤¢¤ë¡£
876 TCP ¥Ñ¥±¥Ã¥È¥Ø¥Ã¥À¡¼¤Î¥ª¥×¥·¥ç¥ó¤ò¥í¥°¤ËµÏ¿¤¹¤ë¡£
879 IP ¥Ñ¥±¥Ã¥È¥Ø¥Ã¥À¡¼¤Î¥ª¥×¥·¥ç¥ó¤ò¥í¥°¤ËµÏ¿¤¹¤ë¡£
881 ¥Ñ¥±¥Ã¥È¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿ netfilter ¤Î mark ÃͤòÀßÄꤹ¤ë¡£
883 ¥Æ¡¼¥Ö¥ë¤Î¤ß¤Ç͸ú¤Ç¤¢¤ë¡£
884 Î㤨¤Ð¡¢iproute2 ¤ÈÁȤ߹ç¤ï¤»¤Æ»È¤¦¤³¤È¤¬¤Ç¤¤ë¡£
886 .BI "--set-mark " "mark"
892 ¥Á¥§¥¤¥ó¤Î¤ß¤Ç͸ú¤Ç¤¢¤ë¡£
893 ưŪ³ä¤êÅö¤Æ IP (¥À¥¤¥ä¥ë¥¢¥Ã¥×) Àܳ¤Î¾ì¹ç¤Ë¤Î¤ß»È¤¦¤Ù¤¤Ç¤¢¤ë¡£
894 ¸ÇÄê IP ¥¢¥É¥ì¥¹¤Ê¤é¤Ð¡¢SNAT ¥¿¡¼¥²¥Ã¥È¤ò»È¤¦¤Ù¤¤Ç¤¢¤ë¡£
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903 .BR "--to-ports " "\fIport\fP[-\fIport\fP]"
904 ¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¡¢»ÈÍѤ¹¤ëÁ÷¿®¸µ¥Ý¡¼¥È¤ÎÈϰϤò»ØÄꤷ¡¢
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940 .BR "--to-ports " "\fIport\fP[-\fIport\fP]"
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961 .BI "--reject-with " "type"
962 type ¤È¤·¤Æ»ØÄê²Äǽ¤Ê¤â¤Î¤Ï
964 .B " icmp-net-unreachable"
965 .B " icmp-host-unreachable"
966 .B " icmp-port-unreachable"
967 .B " icmp-proto-unreachable"
968 .B " icmp-net-prohibited"
969 .B " icmp-host-prohibited or"
970 .B " icmp-admin-prohibited (*)"
972 ¤Ç¤¢¤ê¡¢Å¬ÀÚ¤Ê ICMP ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤òÊÖ¤¹
973 .RB ( port-unreachable
974 ¤¬¥Ç¥Õ¥©¥ë¥È¤Ç¤¢¤ë)¡£
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978 ¤³¤Î¥ª¥×¥·¥ç¥ó¤ò»È¤¦¤È¡¢TCP RST ¥Ñ¥±¥Ã¥È¤¬Á÷¤êÊÖ¤µ¤ì¤ë¡£
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1047 ssh ¤ÏÌäÂê¤Ê¤¤¤¬¡¢scp ¤ÏºÇ½é¤Î¥Ï¥ó¥É¥·¥§¡¼¥¯¸å¤Ë¥Ï¥ó¥°¤¹¤ë
1050 ²óÈòÊýË¡: ¤³¤Î¥ª¥×¥·¥ç¥ó¤ò͸ú¤Ë¤·¡¢°Ê²¼¤Î¤è¤¦¤Ê¥ë¡¼¥ë¤ò
1051 ¥Õ¥¡¥¤¥¢¥¦¥©¡¼¥ë¤ÎÀßÄê¤ËÄɲ乤롣
1053 iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \\
1054 -j TCPMSS --clamp-mss-to-pmtu
1057 .BI "--set-mss " "value"
1058 MSS ¥ª¥×¥·¥ç¥ó¤ÎÃͤò»ØÄꤷ¤¿ÃͤËÀßÄꤹ¤ë¡£
1060 .B "--clamp-mss-to-pmtu"
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1072 TOS ¤òÈÖ¹æ¤Ç»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤¤ë¡£
1077 ¤ò¼Â¹Ô¤·¤ÆÆÀ¤é¤ì¤ë¡¢»ÈÍѲÄǽ¤Ê TOS ̾¤Î°ìÍ÷¤Ë¤¢¤ë TOS ̾¤â»ØÄê¤Ç¤¤ë¡£
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1144 NAT ¤Î¤¤¤í¤¤¤í¤Ê·Á¼°¤¬Ê¬³ä¤µ¤ì¤¿¡£
1145 ¥ª¥×¥·¥ç¥ó¤Î³ÈÄ¥¥â¥¸¥å¡¼¥ë¤È¤È¤â¤Ë
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1149 ¤³¤ì¤Ï¡¢°ÊÁ°¤ß¤é¤ì¤¿ IP ¥Þ¥¹¥«¥ì¡¼¥Ç¥£¥ó¥°¤È¥Ñ¥±¥Ã¥È¥Õ¥£¥ë¥¿¥ê¥ó¥°¤Î
1150 Áȹ礻¤Ë¤è¤ëº®Íð¤ò´Êά²½¤¹¤ë¡£
1157 ¤ÏÊ̤Τâ¤Î¤È¤·¤Æ°·¤ï¤ì¤ë¡£
1158 iptables ¤Ç¤Ï¡¢¤½¤Î¾¤Ë¤â¤¤¤¯¤Ä¤«¤ÎÊѹ¹¤¬¤¢¤ë¡£
1160 .BR iptables-save (8),
1161 .BR iptables-restore (8),
1163 .BR ip6tables-save (8),
1164 .BR ip6tables-restore (8).
1166 ¥Ñ¥±¥Ã¥È¥Õ¥£¥ë¥¿¥ê¥ó¥°¤Ë¤Ä¤¤¤Æ¤Î¾ÜºÙ¤Ê iptables ¤Î»ÈÍÑË¡¤ò
1167 ÀâÌÀ¤·¤Æ¤¤¤ë packet-filtering-HOWTO¡£
1168 NAT ¤Ë¤Ä¤¤¤Æ¾ÜºÙ¤ËÀâÌÀ¤·¤Æ¤¤¤ë NAT-HOWTO¡£
1169 ɸ½àŪ¤ÊÇÛÉۤˤϴޤޤì¤Ê¤¤³ÈÄ¥¤Î¾ÜºÙ¤ò
1170 ÀâÌÀ¤·¤Æ¤¤¤ë netfilter-extensions-HOWTO¡£
1171 ÆâÉô¹½Â¤¤Ë¤Ä¤¤¤Æ¾ÜºÙ¤ËÀâÌÀ¤·¤Æ¤¤¤ë netfilter-hacking-HOWTO¡£
1173 .UR http://www.netfilter.org/
1174 .B http://www.netfilter.org/
1178 Rusty Russell ¤Ï¡¢½é´ü¤ÎÃʳ¬¤Ç Michael Neuling ¤ËÁêÃ̤·¤Æ iptables ¤ò½ñ¤¤¤¿¡£
1180 Marc Boucher ¤Ï Rusty ¤Ë iptables ¤Î°ìÈÌŪ¤Ê¥Ñ¥±¥Ã¥ÈÁªÂò¤Î¹Í¤¨Êý¤ò´«¤á¤Æ¡¢
1181 ipnatctl ¤ò»ß¤á¤µ¤»¤¿¡£
1182 ¤½¤·¤Æ¡¢mangle ¥Æ¡¼¥Ö¥ë¡¦½êͼԥޥåÁ¥ó¥°¡¦
1183 mark µ¡Ç½¤ò½ñ¤¡¢¤¤¤¿¤ë¤È¤³¤í¤Ç»È¤ï¤ì¤Æ¤¤¤ëÁÇÀ²¤é¤·¤¤¥³¡¼¥É¤ò½ñ¤¤¤¿¡£
1185 James Morris ¤¬ TOS ¥¿¡¼¥²¥Ã¥È¤È tos ¥Þ¥Ã¥Á¥ó¥°¤ò½ñ¤¤¤¿¡£
1187 Jozsef Kadlecsik ¤¬ REJECT ¥¿¡¼¥²¥Ã¥È¤ò½ñ¤¤¤¿¡£
1189 Harald Welte ¤¬ ULOG ¥¿¡¼¥²¥Ã¥È¤È¡¢
1190 TTL, DSCP, ECN ¤Î¥Þ¥Ã¥Á¡¦¥¿¡¼¥²¥Ã¥È¤ò½ñ¤¤¤¿¡£
1192 Netfilter ¥³¥¢¥Á¡¼¥à¤Ï¡¢Marc Boucher, Martin Josefsson, Jozsef Kadlecsik,
1193 James Morris, Harald Welte, Rusty Russell ¤Ç¤¢¤ë¡£
1195 man ¥Ú¡¼¥¸¤Ï Herve Eychenne <rv@wallfire.org> ¤¬½ñ¤¤¤¿¡£
1196 .\" .. and did I mention that we are incredibly cool people?
1198 .\" .. witty, charming, powerful ..
1199 .\" .. and most of all, modest ..
1200 .\" .. ¤½¤·¤Æ¡¢ËÍÅù¤¬¤È¤Æ¤â¥¯¡¼¥ë¤ÊÅÛ¤é¤À¤È¸À¤Ã¤Æ¤ª¤¤¤Æ¤â¤¤¤¤¤«¤Ê¡©
1201 .\" .. ¥»¥¯¥·¡¼¤Ç ..
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