designed to support any number of active sources and a variety of source
media. The files list one source per line (one line style) or contain multiline
stanzas defining one or more sources per stanza (deb822 style), with the
- most preferred source listed first. The information available from the
+ most preferred source listed first (in case a single version is available from more than one source). The information available from the
configured sources is acquired by <command>apt-get update</command> (or
by an equivalent command from another APT front-end).
</para>
(<option>target</option>) is a multivalue option defining
which download targets apt will try to acquire from this
source. If not specified, the default set is defined by the
- <option>APT::Acquire::Targets</option> configuration scope.
+ <option>Acquire::IndexTargets</option> configuration scope.
</para></listitem>
</itemizedlist>
anomalies.
<itemizedlist>
- <listitem><para><option>Trusted</option> (<option>trusted</option>)
- is a tri-state value which defaults to APT deciding if a source
- is considered trusted or if warnings should be raised before e.g.
- packages are installed from this source. This option can be used
- to override this decision either with the value <literal>yes</literal>,
- which lets APT consider this source always as a trusted source
- even if it has no or fails authentication checks by disabling parts
- of &apt-secure; and should therefore only be used in a local and trusted
- context (if at all) as otherwise security is breached. The opposite
- can be achieved with the value no, which causes the source to be handled
- as untrusted even if the authentication checks passed successfully.
- The default value can't be set explicitly.
+ <listitem><para><option>Signed-By</option> (<option>signed-by</option>)
+ is either an absolute path to a keyring file (has to be
+ accessible and readable for the <literal>_apt</literal> user,
+ so ensure everyone has read-permissions on the file) or a
+ fingerprint of a key in either the
+ <filename>trusted.gpg</filename> keyring or in one of the
+ keyrings in the <filename>trusted.gpg.d/</filename> directory
+ (see <command>apt-key fingerprint</command>). If the option is
+ set only the key(s) in this keyring or only the key with this
+ fingerprint is used for the &apt-secure; verification of this
+ repository. Otherwise all keys in the trusted keyrings are
+ considered valid signers for this repository.
</para></listitem>
<listitem><para><option>Check-Valid-Until</option> (<option>check-valid-until</option>)