1
<?xml version="1.0" encoding="ISO-8859-1"?>
2
<!-- original version: 29000 -->
6
<title>About Copyrights and Software Licenses
8
<title>Over auteursrechten en softwarelicenties</title>
12
We're sure that you've read some of the licenses that come with most
13
commercial software — they usually say that you can only use one
14
copy of the software on a single computer. This system's license
15
isn't like that at all. We encourage you to put a copy of on every
16
computer in your school or place of business. Lend your installation
17
media to your friends and help them install it on their computers!
18
You can even make thousands of copies and <emphasis>sell</emphasis>
19
them — albeit with a few restrictions. Your freedom to install
20
and use the system comes directly from Debian being based on
21
<emphasis>free software</emphasis>.
25
Calling software <emphasis>free</emphasis> doesn't mean that the software isn't
26
copyrighted, and it doesn't mean that CDs containing that software
27
must be distributed at no charge. Free software, in part, means that
28
the licenses of individual programs do not require you to pay for the
29
privilege of distributing or using those programs. Free software also
30
means that not only may anyone extend, adapt, and modify the software,
31
but that they may distribute the results of their work as
37
The Debian project, as a pragmatic concession to its users,
38
does make some packages available that do not meet our criteria for
39
being free. These packages are not part of the official distribution,
40
however, and are only available from the
41
<userinput>contrib</userinput> or <userinput>non-free</userinput>
42
areas of Debian mirrors or on third-party CD-ROMs; see the
43
<ulink url="&url-debian-faq;">Debian FAQ</ulink>, under
44
<quote>The Debian FTP archives</quote>, for more information about the
45
layout and contents of the archives.
52
Many of the programs in the system are licensed under the
53
<emphasis>GNU</emphasis> <emphasis>General Public License</emphasis>,
54
often simply referred to as <quote>the GPL</quote>. The GPL requires you to make
55
the <emphasis>source code</emphasis> of the programs available
56
whenever you distribute a binary copy of the program; that provision
57
of the license ensures that any user will be able to modify the
58
software. Because of this provision, the source code<footnote>
62
For information on how to locate, unpack, and build
63
binaries from Debian source packages, see the
64
<ulink url="&url-debian-faq;">Debian FAQ</ulink>,
65
under <quote>Basics of the Debian Package Management System</quote>.
68
</footnote> for all such programs is available in the Debian system.
72
There are several other forms of copyright statements and software
73
licenses used on the programs in Debian. You can find the copyrights
74
and licenses for every package installed on your system by looking in
76
<filename>/usr/share/doc/<replaceable>package-name</replaceable>/copyright
78
once you've installed a package on your system.
82
For more information about licenses and how Debian determines whether
83
software is free enough to be included in the main distribution, see the
84
<ulink url="&url-dfsg;">Debian Free Software Guidelines</ulink>.
88
The most important legal notice is that this software comes with
89
<emphasis>no warranties</emphasis>. The programmers who have created this
90
software have done so for the benefit of the community. No guarantee
91
is made as to the suitability of the software for any given purpose.
92
However, since the software is free, you are empowered to modify that
93
software to suit your needs — and to enjoy the benefits of the
94
changes made by others who have extended the software in this way.