| 135 |
run someone else's modified versions but refuse to run yours — a |
run someone else's modified versions but refuse to run yours — a |
| 136 |
practice known as “tivoization” or “lockdown”, |
practice known as “tivoization” or “lockdown”, |
| 137 |
or (in its practitioners' perverse terminology) as “secure |
or (in its practitioners' perverse terminology) as “secure |
| 138 |
boot” — freedom 1 becomes a theoretical fiction rather |
boot” — freedom 1 becomes an empty pretense rather than a |
| 139 |
than a practical freedom. This is not sufficient. In other words, |
practical reality. These binaries are not free |
| 140 |
these binaries are not free software even if the source code they are |
software even if the source code they are compiled from is free. |
|
compiled from is free. |
|
| 141 |
</p> |
</p> |
| 142 |
|
|
| 143 |
<p> |
<p> |
| 168 |
<p> |
<p> |
| 169 |
However, certain kinds of rules about the manner of distributing free |
However, certain kinds of rules about the manner of distributing free |
| 170 |
software are acceptable, when they don't conflict with the central |
software are acceptable, when they don't conflict with the central |
| 171 |
freedoms. For example, copyleft (very simply stated) is the rule that |
freedoms. For example, <a href="/copyleft/copyleft.html">copyleft</a> |
| 172 |
when redistributing the program, you cannot add restrictions to deny |
(very simply stated) is the rule that when redistributing the program, |
| 173 |
other people the central freedoms. This rule does not conflict with |
you cannot add restrictions to deny other people the central freedoms. |
| 174 |
the central freedoms; rather it protects them. |
This rule does not conflict with the central freedoms; rather it |
| 175 |
|
protects them. |
| 176 |
</p> |
</p> |
| 177 |
|
|
| 178 |
<p> |
<p> |
| 179 |
In the GNU project, we use <a href="/copyleft/copyleft.html"> |
In the GNU project, we use copyleft to protect the four freedoms |
| 180 |
copyleft </a> to protect the four freedoms legally for everyone. We |
legally for everyone. We believe there are important reasons why |
|
believe there are important reasons why |
|
| 181 |
<a href="/philosophy/pragmatic.html">it is better to use |
<a href="/philosophy/pragmatic.html">it is better to use |
| 182 |
copyleft</a>. However, |
copyleft</a>. However, |
| 183 |
<a href="/philosophy/categories.html#Non-CopyleftedFreeSoftware"> |
<a href="/philosophy/categories.html#Non-CopyleftedFreeSoftware"> |