1 <?xml version="1.0" encoding="EUC-KR" ?>
2 <!DOCTYPE manualpage SYSTEM "./style/manualpage.dtd">
3 <?xml-stylesheet type="text/xsl" href="./style/manual.ko.xsl"?>
4 <!-- English Revision: 105989:507346 (outdated) -->
7 Licensed to the Apache Software Foundation (ASF) under one or more
8 contributor license agreements. See the NOTICE file distributed with
9 this work for additional information regarding copyright ownership.
10 The ASF licenses this file to You under the Apache License, Version 2.0
11 (the "License"); you may not use this file except in compliance with
12 the License. You may obtain a copy of the License at
14 http://www.apache.org/licenses/LICENSE-2.0
16 Unless required by applicable law or agreed to in writing, software
17 distributed under the License is distributed on an "AS IS" BASIS,
18 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 See the License for the specific language governing permissions and
20 limitations under the License.
23 <manualpage metafile="dns-caveats.xml.meta">
25 <title>DNS¿Í ¾ÆÆÄÄ¡¿Í °ü·ÃµÈ »çÇ×</title>
28 <p>ÀÌ ¹®¼¸¦ ÇÑ ¹®ÀåÀ¸·Î ¿ä¾àÇÒ ¼ö ÀÖ´Ù. ¾ÆÆÄÄ¡°¡ ¼³Á¤ÆÄÀÏÀ»
29 ÀÐÀ»¶§ DNS¸¦ ÀÇÁ¸ÇÏÁö¾Êµµ·Ï Ç϶ó. ¾ÆÆÄÄ¡°¡ ¼³Á¤ÆÄÀÏÀ» Àдµ¥
30 DNS°¡ ÇÊ¿äÇÏ´Ù¸é ¼¹ö´Â ½Å·Ú¼º ¹®Á¦ (½ÃÀÛÀÌ ¾ÈµÉ ¼öµµ ÀÖ´Ù)
31 ȤÀº ¼ºñ½º°ÅºÎ °ø°Ý°ú (»ç¿ëÀÚ°¡ ´Ù¸¥ »ç¿ëÀÚ¿¡ ´ëÇÑ Á¢±ÙÀ»
32 °¡·Îä´Â °ÍÀ» Æ÷ÇÔÇÏ¿©) ¼ºñ½ºµµµÏ(theft of service) °ø°Ý¿¡
36 <section id="example">
37 <title>°£´ÜÇÑ ¿¹Á¦</title>
40 <VirtualHost www.abc.dom> <br />
41 ServerAdmin webgirl@abc.dom <br />
42 DocumentRoot /www/abc <br />
46 <p>¾ÆÆÄÄ¡°¡ Á¤»óÀûÀ¸·Î µ¿ÀÛÇϱâÀ§Çؼ´Â °¢ °¡»óÈ£½ºÆ®¿¡
47 ´ëÇØ µÎ°¡Áö Á¤º¸°¡ Àý´ëÀûÀ¸·Î ÇÊ¿äÇÏ´Ù. ÀÌ Á¤º¸´Â
48 <directive module="core">ServerName</directive>°ú ¼¹ö°¡
49 ±â´Ù¸®°í ÀÀ´äÇÒ ÃÖ¼Ò ÇÑ°³ÀÇ IP ÁÖ¼ÒÀÌ´Ù. ÀÌ ¿¹´Â IP ÁÖ¼Ò°¡
50 ¾ø±â¶§¹®¿¡, ¾ÆÆÄÄ¡´Â DNS¸¦ »ç¿ëÇÏ¿© <code>www.abc.dom</code>ÀÇ
51 ÁÖ¼Ò¸¦ ã¾Æ¾ß ÇÑ´Ù. ¼¹ö°¡ ¼³Á¤ÆÄÀÏÀ» ÀÐÀ»¶§ ¾î¶² ÀÌÀ¯¿¡¼°Ç
52 DNS¸¦ »ç¿ëÇÒ ¼ö ¾ø´Ù¸é °¡»óÈ£½ºÆ®¸¦ <strong>¸¸µé ¼ö ¾ø´Ù</strong>.
53 ÀÌ °¡»óÈ£½ºÆ®´Â ¿äû¿¡ ÀÀ´äÇÒ ¼ö ¾ø´Ù. (¾ÆÆÄÄ¡ 1.2 ÀÌÀü
54 ¹öÀü¿¡¼´Â ½ÉÁö¾î ¼¹ö°¡ ºÎÆõµ ¾ÈÇÑ´Ù.)</p>
56 <p><code>www.abc.dom</code>ÀÇ ÁÖ¼Ò°¡ 192.0.2.1À̶ó°í °¡Á¤ÇÏÀÚ.
57 ±×¸®°í ´ÙÀ½ ¼³Á¤À» º¸¶ó:</p>
60 <VirtualHost 192.0.2.1> <br />
61 ServerAdmin webgirl@abc.dom <br />
62 DocumentRoot /www/abc <br />
66 <p>ÀÌÁ¦ ¾ÆÆÄÄ¡´Â ÀÌ °¡»óÈ£½ºÆ®ÀÇ <code>ServerName</code>À»
67 ã±âÀ§ÇØ ¿ªDNS¸¦ »ç¿ëÇØ¾ß ÇÑ´Ù. ¿ªÃ£±â°¡ ½ÇÆÐÇÏ¸é ¾ÆÆÄÄ¡´Â
68 °¡»óÈ£½ºÆ®¸¦ ºÎºÐÀûÀ¸·Î ²ö´Ù. (¾ÆÆÄÄ¡ 1.2 ÀÌÀü ¹öÀü¿¡¼´Â
69 ½ÉÁö¾î ¼¹ö°¡ ºÎÆõµ ¾ÈÇÑ´Ù.) Áï, ÀÌ °æ¿ì À̸§±â¹Ý
70 °¡»óÈ£½ºÆ®¶ó¸é °¡»óÈ£½ºÆ®´Â ¿ÏÀüÈ÷ µ¿ÀÛÇÏÁö¾Ê°í, ip±â¹ÝÀ̶ó¸é
71 ´ëºÎºÐ µ¿ÀÛÇÑ´Ù. ±×·¯³ª ¾ÆÆÄÄ¡°¡ ¼¹ö¸íÀ» Æ÷ÇÔÇÏ¿© ¼¹öÀÇ
72 Àüü URLÀ» ¸¸µé¾î¾ß ÇÑ´Ù¸é Á¤»óÀûÀÎ URLÀ» ¸¸µéÁö ¸øÇÑ´Ù.</p>
74 <p>¾Æ·¡ °æ¿ì ÀÌ µÎ°¡Áö ¹®Á¦°¡ ¾ø´Ù.</p>
77 <VirtualHost 192.0.2.1> <br />
78 ServerName www.abc.dom <br />
79 ServerAdmin webgirl@abc.dom <br />
80 DocumentRoot /www/abc <br />
86 <title>¼ºñ½º°ÅºÎ (Denial of Service)</title>
88 <p>(ÃÖ¼ÒÇÑ) µÎ°¡Áö Á¾·ùÀÇ ¼ºñ½º°ÅºÎ°¡ ¹ß»ýÇÒ ¼ö ÀÖ´Ù.
89 ¾ÆÆÄÄ¡ 1.2 ÀÌÀü ¹öÀüÀÇ °æ¿ì ¾î¶² °¡»óÈ£½ºÆ®¿¡¼¶óµµ
90 À§¿¡¼ ¸»ÇÑ µÎ DNS °Ë»öÀÌ ½ÇÆÐÇÏ¸é ¼¹ö°¡ ÄÑÁöÁöµµ ¾Ê´Â´Ù.
91 DNS°¡ ´ç½ÅÀÇ ±ÇÇÑ ¹ÛÀÇ ¹®Á¦ÀÏ ¼öµµ ÀÖ´Ù. ¿¹¸¦ µé¾î,
92 <code>abc.dom</code>ÀÌ °í°´ »çÀÌÆ®ÀÌ°í °í°´ÀÌ ÀÚ½ÅÀÇ DNS¸¦
93 °ü¸®ÇÑ´Ù¸é, <code>www.abc.dom</code> ·¹Äڵ带 Áö¿ì±â¸¸ Çصµ
94 (1.2 ÀÌÀü) ¼¹ö´Â ½ÃÀÛÇÏÁö ¸øÇÑ´Ù.</p>
96 <p>ÈξÀ ´õ ±³È°ÇÑ ¹æ¹ýµµ ÀÖ´Ù. ´ÙÀ½ ¼³Á¤À» »ìÆ캸ÀÚ:</p>
99 <VirtualHost www.abc.dom> <br />
100 ServerAdmin webgirl@abc.dom <br />
101 DocumentRoot /www/abc <br />
102 </VirtualHost> <br />
104 <VirtualHost www.def.dom> <br />
105 ServerAdmin webguy@def.dom <br />
106 DocumentRoot /www/def <br />
110 <p>´ç½ÅÀÌ <code>www.abc.dom</code>¿¡ 192.0.2.1,
111 <code>www.def.dom</code>¿¡ 192.0.2.2¸¦ ÇÒ´çÇß´Ù°í ÇÏÀÚ.
112 ¶Ç, <code>def.dom</code>Àº ÀÚü DNS¸¦ »ç¿ëÇÑ´Ù°í °¡Á¤ÇÏÀÚ.
113 ÀÌ ¼³Á¤°ú ÇÔ²² <code>def.dom</code>À» <code>abc.dom</code>À¸·Î
114 °¡´Â ¸ðµç Åë½ÅÀ» °¡·Îç ¼ö ÀÖ´Â Àå¼Ò¿¡ µÎ¾ú´Ù. ±×·¸´Ù¸é ±×µéÀº
115 <code>www.def.dom</code>À» 192.0.2.1·Î ¼³Á¤Çϱ⸸ ÇÏ¸é µÈ´Ù.
116 ±×µéÀÌ ÀÚü DNS¸¦ »ç¿ëÇϱ⶧¹®¿¡ ´ç½ÅÀº ±×µéÀÌ ¿øÇϴµ¥·Î
117 <code>www.def.dom</code> ·¹Äڵ带 ¼³Á¤ÇÏ´Â °ÍÀ» ¸·À» ¼ö
120 <p>(»ç¿ëÀÚ°¡ <code>http://www.abc.dom/whatever</code> Çü½ÄÀÇ
121 URLÀ» ÀÔ·ÂÇÏ´Â °æ¿ì¸¦ Æ÷ÇÔÇÏ¿©) 192.0.2.1·Î ¿À´Â ¸ðµç ¿äûÀ»
122 <code>def.dom</code> °¡»óÈ£½ºÆ®°¡ ¼ºñ½ºÇÏ°Ô µÈ´Ù. ¿Ö ÀÌ·±
123 ÀÏÀÌ ÀϾ´ÂÁö ÀÌÇØÇÏ·Á¸é ¾ÆÆÄÄ¡°¡ ¾î¶»°Ô °¡»óÈ£½ºÆ®·Î
124 ¿À´Â ¿äûÀ» ó¸®ÇÏ´ÂÁö¿¡ ´ëÇÑ ¼³¸íÀÌ ÇÊ¿äÇÏ´Ù.
125 <a href="vhosts/details.html">¿©±â</a>¿¡ ´ë° ¼³¸íµÇÀÖ´Ù.</p>
129 <title>"ÁÖ¼¹ö" ÁÖ¼Ò</title>
131 <p>¾ÆÆÄÄ¡ 1.1¿¡¼ <a href="vhosts/name-based.html">À̸§±â¹Ý
132 °¡»óÈ£½ºÆ® Áö¿ø</a>ÀÌ Æ÷ÇԵǾú±â¶§¹®¿¡ ¾ÆÆÄÄ¡´Â À¥¼¹ö¸¦
133 ½ÇÇàÇϴ ȣ½ºÆ®ÀÇ IP ÁÖ¼Ò(µé)¸¦ ¾Ë ÇÊ¿ä°¡ »ý°å´Ù. ÀÌ ÁÖ¼Ò´Â
134 (ÀÖ´Ù¸é) Àü¿ª <directive module="core">ServerName</directive>
135 ȤÀº C ÇÔ¼ö <code>gethostname</code>À¸·Î (¸í·ÉÇÁ·ÒÇÁÆ®¿¡
136 "hostname"À» ÀÔ·ÂÇßÀ»¶§¿Í °°Àº °á°ú) ¾ò´Â´Ù. ±×·¯¸é ÀÌ ÁÖ¼Ò·Î
137 DNS °Ë»öÀ» ÇÑ´Ù. ÇöÀç ÀÌ °Ë»öÀº ÇÇÇÒ ¼ö ¾ø´Ù.</p>
139 <p>DNS ¼¹ö°¡ Á×¾î¼ ÀÌ °Ë»öÀÌ ½ÇÆÐÇÒ °Í °°´Ù¸é
140 <code>/etc/hosts</code>¿¡ È£½ºÆ®¸íÀ» Áý¾î³ÖÀ» ¼ö ÀÖ´Ù.
141 (ÄÄÇ»ÅÍ°¡ Á¤»óÀûÀ¸·Î ºÎÆõǾú´Ù¸é ¾Æ¸¶ ÀÌ¹Ì µé¾îÀÖÀ» °ÍÀÌ´Ù.)
142 ±×¸®°í DNS°¡ ½ÇÆÐÇÏ¸é ¼¹ö°¡ <code>/etc/hosts</code>¸¦
143 »ç¿ëÇÏ´ÂÁö È®ÀÎÇ϶ó. »ç¿ëÇÏ´Â ¿î¿µÃ¼Á¦¿¡ µû¶ó
144 <code>/etc/resolv.conf</code> ȤÀº <code>/etc/nsswitch.conf</code>¸¦
145 ¼öÁ¤ÇÏ¸é µÉ °ÍÀÌ´Ù.</p>
147 <p>¼¹ö°¡ ¾î¶² ÀÌÀ¯¿¡¼°Ç DNS¸¦ °Ë»öÇÏ¸é ¾ÈµÈ´Ù¸é
148 <code>HOSTRESORDER</code> ȯ°æº¯¼ö¸¦ "local"·Î ¼³Á¤ÇÏ°í
149 ¾ÆÆÄÄ¡¸¦ ½ÇÇàÇÒ ¼ö ÀÖ´Ù. <module>mod_env</module>¸¦
150 »ç¿ëÇÏ¿© ȯ°æÀ» º¯°æÇÏÁö ¾Ê´Â´Ù¸é ÀÌ È¯°æº¯¼ö´Â
151 CGI¿¡µµ ¿µÇâÀ» ÁØ´Ù. ¿î¿µÃ¼Á¦ÀÇ manpage³ª FAQ¸¦ Âü°íÇÏ´Â
156 <title>ÀÌ ¹®Á¦¸¦ ÇÇÇϱâÀ§ÇÑ ÆÁ</title>
160 <directive module="core">VirtualHost</directive>¿¡ IP
165 <directive module="mpm_common">Listen</directive>¿¡
170 ¸ðµç °¡»óÈ£½ºÆ®´Â ¸í½ÃÀûÀ¸·Î
171 <directive module="core">ServerName</directive>À»
175 <li>¾î¶² ÆäÀÌÁöµµ ¼ºñ½ºÇÏÁö¾Ê´Â
176 <code><VirtualHost _default_:*></code> ¼¹ö¸¦
181 <section id="appendix">
182 <title>ºÎ·Ï: ¾ÕÀ¸·Î´Â</title>
184 <p>DNS¿Í °ü·ÃµÈ »óȲÀº ¸Å¿ì ¹Ù¶÷Á÷ÇÏÁö ¸øÇÏ´Ù. ¾ÆÆÄÄ¡ 1.2¿¡¼
185 ¿ì¸®´Â DNS°¡ ½ÇÆÐÇÑ °æ¿ì¿¡µµ ÃÖ¼ÒÇÑ ¼¹ö°¡ ÄÑÁöµµ·Ï ³ë·ÂÇßÁö¸¸
186 °á°ú´Â ³ª»¦´Ù. ¾î·µç ¼³Á¤ÆÄÀÏ¿¡ Á÷Á¢ IP ÁÖ¼Ò¸¦ ¿ä±¸ÇÏ´Â
187 °ÍÀº ¹øÈ£¸¦ ´Ù½Ã ¼³Á¤ÇؾßÇÒ ¿äÁò ÀÎÅͳݿ¡ ¸Å¿ì ¹Ù¶÷Á÷ÇÏÁö
190 <p>À§¿¡¼ ¼³¸íÇÑ ¼ºñ½ºµµµÏ °ø°ÝÀ» ¸·´Â ÇÑ°¡Áö ¹æ¹ýÀº °Ë»öÇÑ
191 IP ÁÖ¼Ò¿¡ ´Ù½Ã ¿ªDNS °Ë»öÀ» ÇÏ¿© µÎ À̸§À» ºñ±³ÇÏ´Â °ÍÀÌ´Ù.
192 ¼·Î ´Ù¸¥ °æ¿ì °¡»óÈ£½ºÆ®¸¦ °¡µ¿ÇÏÁö ¾ÊÀ» ¼ö ÀÖ´Ù. ÀÌ ¹æ¹ýÀº
193 ¿ªDNS°¡ ¿Ã¹Ù·Î ¼³Á¤µÇ¾ß ÇÑ´Ù. (FTP ¼¹ö³ª TCP wrapper°¡
194 "Áߺ¹-¿ª" DNS °Ë»öÀ» ÀÚÁÖ »ç¿ëÇϱ⶧¹®¿¡ ´ëºÎºÐÀÇ °ü¸®ÀÚ¿¡°Ô
197 <p>¾î·µç IP ÁÖ¼Ò¸¦ »ç¿ëÇÏÁö¾ÊÀ¸¸é DNS°¡ ½ÇÆÐÇÑ °æ¿ì °¡»óÈ£½ºÆ®
198 À¥¼¹ö¸¦ ¹ÏÀ» ¼ö ÀÖ°Ô ½ÃÀÛÇÒ ¼ö ¾ø´Ù. ¼³Á¤ÀÇ ÀϺθ¦ ¹«½ÃÇÏ´Â
199 °Í°ú °°Àº ºÎºÐÀûÀÎ ÇØ°áÃ¥Àº À¥¼¹ö Àüü¸¦ ½ÃÀÛÇÏÁö¾Ê´Â °Íº¸´Ù
200 ´õ ³ª»Ü ¼öµµ ÀÖ´Ù.</p>
202 <p>HTTP/1.1ÀÌ ³ª¿Ô°í ºê¶ó¿ìÀú¿Í ÇÁ·Ï½Ã°¡ <code>Host</code>
203 Çì´õ¸¦ º¸³»±â ½ÃÀÛÇßÀ¸¹Ç·Î IP±â¹Ý °¡»óÈ£½ºÆ®¸¦ ¿ÏÀüÈ÷
204 »ç¿ëÇÏÁö¾Ê´Â °ÍÀÌ °¡´ÉÇØÁú °ÍÀÌ´Ù. ±×·¯¸é À¥¼¹ö´Â ¼³Á¤Áß¿¡¼
205 DNS °Ë»öÀ» ÇÒ ÇÊ¿ä°¡ ¾ø¾îÁø´Ù. ±×·¯³ª 1997³â 3¿ù¿¡´Â Áß¿äÇÑ
206 À¥¼¹ö¿¡ Æ÷ÇÔÇÒ Á¤µµ·Î À̸§±â¹Ý °¡»óÈ£½ºÆ®°¡ ³Î¸® »ç¿ëµÇÁö