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-rw-r--r--doc/apt-secure.8.xml42
1 files changed, 30 insertions, 12 deletions
diff --git a/doc/apt-secure.8.xml b/doc/apt-secure.8.xml
index 8ad249d7c..4f5d491f3 100644
--- a/doc/apt-secure.8.xml
+++ b/doc/apt-secure.8.xml
@@ -13,7 +13,7 @@
&apt-email;
&apt-product;
<!-- The last update date -->
- <date>2016-08-06T00:00:00Z</date>
+ <date>2017-04-12T00:00:00Z</date>
</refentryinfo>
<refmeta>
@@ -50,10 +50,20 @@
that data like packages in the archive can't be modified by people who
have no access to the Release file signing key. Starting with version 1.1
<command>APT</command> requires repositories to provide recent authentication
- information for unimpeded usage of the repository.
+ information for unimpeded usage of the repository. Since version 1.5 changes
+ in the information contained in the Release file about the repository need to be
+ confirmed before APT continues to apply updates from this repository.
</para>
<para>
+ Note: All APT-based package management front-ends like &apt-get;, &aptitude;
+ and &synaptic; support this authentication feature, so this manpage uses
+ <literal>APT</literal> to refer to them all for simplicity only.
+ </para>
+</refsect1>
+
+ <refsect1><title>Unsigned Repositories</title>
+ <para>
If an archive has an unsigned Release file or no Release file at all
current APT versions will refuse to download data from them by default
in <command>update</command> operations and even if forced to download
@@ -83,16 +93,9 @@
to <literal>true</literal> or for Individual repositories with the &sources-list;
option <literal>allow-downgrade-to-insecure=yes</literal>.
</para>
-
- <para>
- Note: All APT-based package management front-ends like &apt-get;, &aptitude;
- and &synaptic; support this authentication feature, so this manpage uses
- <literal>APT</literal> to refer to them all for simplicity only.
- </para>
</refsect1>
- <refsect1><title>Trusted Repositories</title>
-
+ <refsect1><title>Signed Repositories</title>
<para>
The chain of trust from an APT archive to the end user is made up of
several steps. <command>apt-secure</command> is the last step in
@@ -162,7 +165,22 @@
this mechanism can complement a per-package signature.</para>
</refsect1>
- <refsect1><title>User Configuration</title>
+<refsect1><title>Information changes</title>
+ <para>
+ A Release file contains beside the checksums for the files in the repository
+ also general information about the repository like the origin, codename or
+ version number of the release.
+ </para><para>
+ This information is shown in various places so a repository owner should always
+ ensure correctness. Further more user configuration like &apt-preferences;
+ can depend and make use of this information. Since version 1.5 the user must
+ therefore explicitly confirm changes to signal that the user is sufficently
+ prepared e.g. for the new major release of the distribution shipped in the
+ repository (as e.g. indicated by the codename).
+ </para>
+</refsect1>
+
+<refsect1><title>User Configuration</title>
<para>
<command>apt-key</command> is the program that manages the list of keys used
by APT to trust repositories. It can be used to add or remove keys as well
@@ -183,7 +201,7 @@
</para>
</refsect1>
-<refsect1><title>Archive Configuration</title>
+<refsect1><title>Repository Configuration</title>
<para>
If you want to provide archive signatures in an archive under your
maintenance you have to: