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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org">
<title>Using :oh To Select Printcap Information</title>
<meta name="GENERATOR" content=
"Modular DocBook HTML Stylesheet Version 1.71 ">
<link rel="HOME" title=" LPRng-HOWTO" href="index.htm">
<link rel="UP" title="Printcap Database " href=
"printcapref.htm">
<link rel="PREVIOUS" title="Simple Server Printcap Example"
href="cm.htm">
<link rel="NEXT" title="Using the Wildcard Printcap Entry"
href="x5705.htm">
</head>
<body class="SECT1" bgcolor="#FFFFFF" text="#000000" link=
"#0000FF" vlink="#840084" alink="#0000FF">
<div class="NAVHEADER">
<table summary="Header navigation table" width="100%" border=
"0" cellpadding="0" cellspacing="0">
<tr>
<th colspan="3" align="center">LPRng-HOWTO: 1 Apr 2002
(For LPRng-3.8.10)</th>
</tr>
<tr>
<td width="10%" align="left" valign="bottom"><a href=
"cm.htm" accesskey="P">Prev</a></td>
<td width="80%" align="center" valign="bottom">Chapter
12. Printcap Database</td>
<td width="10%" align="right" valign="bottom"><a href=
"x5705.htm" accesskey="N">Next</a></td>
</tr>
</table>
<hr align="LEFT" width="100%">
</div>
<div class="SECT1">
<h1 class="SECT1"><a name="AEN5679">12.4. Using :oh To Select
Printcap Information</a></h1>
<p>When administering a large number of printers over a large
area, it is sometimes desirable to have a <i class=
"EMPHASIS">default</i> printer for each host. This default
printer may be different for each host, and can be selected
by using the <tt class="LITERAL">oh</tt> entry. The <tt
class="LITERAL">oh</tt> value is a list of the following
entries</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5685"></a>
<pre class="SCREEN">
[!] IP/n - address + mask length 10.0.0.0/8
[!] IP/IP - address + mask 10.0.0.0/255.0.0.0
[!] vvv - glob for hostname pc*.org.com
</pre>
</div>
<br>
<br>
<p>The <b class="APPLICATION">LPRng</b> software will
determine the hostnames and IP addresses assigned to the host
and then check to see if there is a match in the listed
hostnames or IP addresses. The optional test inversion (<tt
class="LITERAL">!</tt>) causes the sense of the match to be
inverted. The list of addresses or entries are tested in
sequence until a match is found. If no match is found the
printcap entry will not be used. For example:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5690"></a>
<pre class="SCREEN">
lp:oh=*.admin.org.com,10.0.0.5,10.2.0.0/16:lp=pr1@server1
lp:oh=*.eng.org.com:lp=hp@server2
color:oh=*.eng.org.com:lp=color@server3
color:oh=!*.eng.org.com:lp=color@server4
</pre>
</div>
<br>
<br>
<p>In the above example, if our host name is <tt class=
"FILENAME">booster.admin.org.com</tt>, then we would use <tt
class="LITERAL">lp=pr1@server1</tt>, as the <tt class=
"FILENAME">*.admin.org.com</tt> glob pattern would match our
host name.</p>
<p>if our host name is <tt class=
"FILENAME">booster.dev.org.com</tt> and our IP address is
10.2.0.1, then we would use <tt class=
"LITERAL">lp=pr1@server1</tt>, as the <tt class=
"FILENAME">10.2.0.0/16</tt> ip address would be in the
specified address range.</p>
<p>Finally we have an example of the use of the match
inversion operator (<tt class="LITERAL">!</tt>). All hosts
whose name matches <tt class="FILENAME">*.eng.org.com</tt>
will use <tt class="LITERAL">color@server3</tt> and the
others will use <tt class="LITERAL">color@server4</tt>.</p>
</div>
<div class="NAVFOOTER">
<hr align="LEFT" width="100%">
<table summary="Footer navigation table" width="100%" border=
"0" cellpadding="0" cellspacing="0">
<tr>
<td width="33%" align="left" valign="top"><a href=
"cm.htm" accesskey="P">Prev</a></td>
<td width="34%" align="center" valign="top"><a href=
"index.htm" accesskey="H">Home</a></td>
<td width="33%" align="right" valign="top"><a href=
"x5705.htm" accesskey="N">Next</a></td>
</tr>
<tr>
<td width="33%" align="left" valign="top">Simple Server
Printcap Example</td>
<td width="34%" align="center" valign="top"><a href=
"printcapref.htm" accesskey="U">Up</a></td>
<td width="33%" align="right" valign="top">Using the
Wildcard Printcap Entry</td>
</tr>
</table>
</div>
</body>
</html>
|
