1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
<?xml version="1.0" encoding="EUC-KR"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="ko" xml:lang="ko"><head><!--
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
This file is generated from xml source: DO NOT EDIT
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-->
<title>mod_unique_id - Apache HTTP Server</title>
<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
<link href="../images/favicon.ico" rel="shortcut icon" /></head>
<body>
<div id="page-header">
<p class="menu"><a href="../mod/"></a> | <a href="../mod/directives.html">þ</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html"></a> | <a href="../sitemap.html">Ʈ</a></p>
<p class="apache">Apache HTTP Server Version 2.2</p>
<img alt="" src="../images/feather.gif" /></div>
<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
<div id="path">
<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.2</a> > <a href="./"></a></div>
<div id="page-content">
<div id="preamble"><h1>ġ mod_unique_id</h1>
<div class="toplang">
<p><span> : </span><a href="../en/mod/mod_unique_id.html" hreflang="en" rel="alternate" title="English"> en </a> |
<a href="../ja/mod/mod_unique_id.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="../ko/mod/mod_unique_id.html" title="Korean"> ko </a></p>
</div>
<div class="outofdate"> ֽ ƴմϴ.
ֱٿ ϼ.</div>
<table class="module"><tr><th><a href="module-dict.html#Description">:</a></th><td> û ĺڸ ȯ溯
Ѵ</td></tr>
<tr><th><a href="module-dict.html#Status">:</a></th><td>Extension</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">:</a></th><td>unique_id_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">ҽ:</a></th><td>mod_unique_id.c</td></tr></table>
<h3></h3>
<p> Ư Ȳ "" û߿
ϵ ĺ(identifier) û Ѵ.
ĺڴ Ưϰ Ŭ ǻ͵
߿ ϴ. û ȯ溯
<code>UNIQUE_ID</code> Ѵ. ĺڴ
뵵 , Ѿ.</p>
</div>
<div id="quickview"><h3 class="directives">þ</h3>
<p> þ ϴ.</p>
<h3></h3>
<ul id="topics">
<li><img alt="" src="../images/down.gif" /> <a href="#theory">̷</a></li>
</ul></div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="theory" id="theory">̷</a></h2>
<p> н ýۿ ġ ϴ
캸. Windows NT ʴ´.
н ġ ڽ , ڽ μ
ѹ û óѴ. ڽ ߿ û
óѴ. ⼭ ߿ ڽĵ ڷḦ
ʴ´ٴ ̴. ڽ httpd μ
Ѵ.</p>
<p> ǻͷ Ʈ Ѵٸ Ŭ(cluster)
θ. ǻʹ ġ ִ. ̵ θ
"" , ŬͿ ִ ǻ͵鰣 ž
û ֿ ĺڸ ִ.</p>
<p>ŬͿ ִ ǻʹ 䱸 ؾ Ѵ.
(ǻ Ѵ븸 ϴ ǻ ð NTP ؾ
Ѵ.)</p>
<ul>
<li>ǻ ð NTP ٸ Ʈ ð ݰ
ȭȴ.</li>
<li>ǻ ȣƮ ٸ.
ȣƮ ã ŬͿ ִ ǻ ٸ
IP ּҸ ´.</li>
</ul>
<p>ü pid (μ id) 32Ʈ ٰ
Ѵ. ü pid 32Ʈ ̻ Ѵٸ
ڵ带 ؾ Ѵ.</p>
<p>̷ Ͽ 츮 Ŭ ǻͿ
ִ httpd μ ٸ httpd μ
ִ. ǻ IP ּҿ httpd μ pidε
ִ. û ڸ
ð ȴ.</p>
<p>ð ϱ н ð(timestamp, ǥؽ÷
1970 1 1 ) 16Ʈ ī Ѵ.
н ð ʴ̰, īʹ ʵ 65536
Ѵ. <em>( ip_addr, pid, time_stamp, counter )</em>
httpd μ ʵ 65536 û
ִ. īʹ pid ϴ ذؾ
Ѵ.</p>
<p>httpd ڽ īʹ ( и 10 )
65536 ȴ. ( ý и ð
Ʈ ġʴ .)
ĺڸ 鶧 ϴ ð û
ð̴. īʹ ĺڸ 鶧 Ѵ (
ٽ Ѵ).</p>
<p>Ŀ μ ũҶ(fork) μ pid
Ҵϰ, pid ٽ ִ. (pid н
16Ʈ, ֱ ý 32Ʈ Ȯߴ.) ð
pid ִ. ð pid
ʴ´ٸ ϴ. , 츮 ý
ʵ μ 65536 ̻ ʴ´ٰ Ѵ.
( н 32768 ̻ μ pid
, ̰ Ͼ Ͱ ʴ.)</p>
<p>ð ݺȴٰ غ. , ý
ð谡 ð ŷ ư (Ȥ ð谡 ʹ ռ
ùٷ 缳 ̷ ð Ǵ) .
pid ð ִ. ī ʱȭ
ذϷ ȵǾ. 츮 ڷ
ī ʱȭϱ , ýۿ ̷
. (<em> </em>, seed ʿϱ
rand() , ð ּ ̱
ð seed .) Ϻ ذå .</p>
<p> ? ǻ ϳ û
ʴ ִ 500 (ý Ϲ ϴ
̻ ۾ ϹǷ
̴.) Ѵٰ . ÿ ŭ Ŭ̾Ʈ
óϴ° ڽ ȴ. 츮
ڽ û ʴ 500 ó ִٰ
Ѵ. pid ڽ 500 û ڽ
500 û īͰ ĥ ִ ī ۰
1000̴. (ʴ) ڽ īͰ ݺϿ
ϼ Ȯ 1.5%̴. ̰ ſ ̸,
̷ . ýۿ ̷
ٸ (ҽ Ͽ) ī 32Ʈ
.</p>
<p>ŸӶ ð谡 "ڷ " .
⼭ ϴ ð ǥؽ(UTC), ð
"" Ƿ . x86 н
ʿϴ. κ ð谡 UTC ϵ
ؾ Ѵ. NTP Ѵٸ
UTC ð ùٷ .</p>
<p>ȯ溯 <code>UNIQUE_ID</code> MIME base64 ڵ
112Ʈ (32Ʈ IP ּ, 32Ʈ pid, 32Ʈ
ð, 16Ʈ ī) ĺ <code>[A-Za-z0-9@-]</code>
ǥѴ. MIME base64 ĺ
<code>[A-Za-z0-9+/]</code> <code>+</code>
<code>/</code> URL Ư ǹ̷ ϹǷ ߴ.
Ʈ Ʈ ڵϱ ٸ Ʈ
ϴ Űİ . ڵ
ð, IP ּ, pid, ī ̴.
, α ڵ Ͽ мϸ
ȵ Ѵ. α ڵ <code>UNIQUE_ID</code>
ü ϰ, ٸ <code>UNIQUE_ID</code>
ִ.</p>
<p> <code>UNIQUE_ID</code> ͺ̽
浹 ʰ ڵ ֵ ߴ.
ο ڵ ù ð ϰų, ĺ
Ʈ ̸ ִ. ð ⺻ ϴ ̹Ƿ
ŬͿ ִ ǻͰ û ߴϰ
ڵ ϱ <em> (flag second)</em>
ϴ. û ϰ ο ڵ
ִ.</p>
<p>츮 Ͽ ð
ذå̶ ϴ´. Windows NT Ƽ
ý Ȯ ְ, 뵵 Ȯ
ִ. ̷ ʿѸŭ ĺڸ ֱ
ĺڴ ⺻ . ⺻
Ŭ ǻ͵ ̿ ʿ (ϰ
NTP ⸸ ʿϴ), httpd μ ̿ ŵ ʿ
(Ŀ οϴ pid Ϲ ̴). ſ Ư
Ȳ̶ ν ũ⸦
ؾ Ѵ. ( , Ʈ 32Ʈ IP ּ
ʿϰ ũ, ̸ ̴ Ȳ
ٸ.) </p>
</div>
</div>
<div class="bottomlang">
<p><span> : </span><a href="../en/mod/mod_unique_id.html" hreflang="en" rel="alternate" title="English"> en </a> |
<a href="../ja/mod/mod_unique_id.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="../ko/mod/mod_unique_id.html" title="Korean"> ko </a></p>
</div><div id="footer">
<p class="apache">Copyright 2006 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
<p class="menu"><a href="../mod/"></a> | <a href="../mod/directives.html">þ</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html"></a> | <a href="../sitemap.html">Ʈ</a></p></div>
</body></html>
|
