man > apt_auth.conf(5)

APT_AUTH.CONF(5)                                 APT                                APT_AUTH.CONF(5)

NAME
       apt_auth.conf - Login configuration file for APT sources and proxies

DESCRIPTION
       APT configuration files like sources.list(5) or apt.conf(5) need to be accessible for
       everyone using apt tools on the system to have access to all package-related information like
       the available packages in a repository. Login information needed to connect to a proxy or to
       download data from a repository on the other hand shouldn't always be accessible by everyone
       and can hence not be placed in a file with world-readable file permissions.

       The APT auth.conf file /etc/apt/auth.conf, and .conf files inside /etc/apt/auth.conf.d can be
       used to store login information in a netrc-like format with restrictive file permissions.

NETRC-LIKE FORMAT
       The format defined here is similar to the format of the ~/.netrc file used by ftp(1) and
       similar programs interacting with servers. It is a simple token-based format with the
       following tokens being recognized; Unknown tokens will be ignored. Tokens may be separated by
       spaces, tabs or newlines.

       machine [protocol://]hostname[:port][/path]
           Entries are looked up by searching for the machine token matching the hostname of the URI
           apt needs login information for. Extending the netrc-format a portnumber can be
           specified. If no port is given the token matches for all ports. Similar the path is
           optional and only needed and useful if multiple repositories with different login
           information reside on the same server. A machine token with a path matches if the path in
           the URI starts with the path given in the token. Once a match is made, the subsequent
           tokens are processed, stopping when the end of file is reached or another machine token
           is encountered.

           If protocol is not specified, the entry only matches https and tor+https.

       login name
           The username to be used.

       password string
           The password to be used.

EXAMPLE
       Supplying login information for a user named apt with the password debian for the
       sources.list(5) entry

           deb https://example.org/debian bookworm main

       could be done in the entry directly:

           deb https://apt:debian AT example.org/debian bookworm main

       Alternatively an entry like the following in the auth.conf file could be used:

           machine example.org
           login apt
           password debian

       Or alternatively within a single line:

           machine example.org login apt password debian

       If you need to be more specific all of these lines will also apply to the example entry:

           machine example.org/deb login apt password debian
           machine example.org/debian login apt password debian
           machine example.org/debian/ login apt password debian

       On the other hand neither of the following lines apply:

           machine example.org:443 login apt password debian
           machine example.org/deb/ login apt password debian
           machine example.org/ubuntu login apt password debian
           machine example.orga login apt password debian
           machine example.net login apt password debian


NOTES
       Basic support for this feature is present since version 0.7.25, but was undocumented for
       years. The documentation was added in version 1.5 changing also the implementation slightly.
       For maximum backward compatibility you should avoid multiple machine tokens with the same
       hostname, but if you need multiple they should all have a path specified in the machine
       token.

       Login information in auth.conf are more flexible than those in sources.list. For example,
       login information can be specified for parts of a repository only, or if the sources.list
       entry redirects elsewhere, login information for the redirect destination can be supplied.

FILES
       /etc/apt/auth.conf
           Login information for APT sources and proxies in a netrc-like format. Configuration Item:
           Dir::Etc::netrc.

       /etc/apt/auth.conf.d/*.conf
           Login information for APT sources and proxies in a netrc-like format. Configuration Item:
           Dir::Etc::netrcparts.

SEE ALSO
       apt.conf(5) sources.list(5)

BUGS
       APT bug page[1]. If you wish to report a bug in APT, please see
       /usr/share/doc/debian/bug-reporting.txt or the reportbug(1) command.

AUTHOR
       APT team

NOTES
        1. APT bug page
           https://bugs.debian.org/src:apt

APT 2.8.3                                 02 December 2019                          APT_AUTH.CONF(5)