approx-import(8) [debian man page]

APPROX-IMPORT(8)					      System Manager's Manual						  APPROX-IMPORT(8)

NAME

       approx-import - copy local .deb files into the approx cache

SYNOPSIS

       approx-import [OPTION]... file.deb ...

DESCRIPTION

       approx-import copies local .deb files, such as those found in /var/cache/apt/archives, into the approx(8) cache.

       It  does  so  by computing the MD5 checksum of each argument.  If it matches a package in one of the Packages files in the approx(8) cache,
       then the file is copied to the appropriate location in the cache.

       Note that all Packages files must be scanned, regardless of how many .deb files are being imported, and this process may take several  min-
       utes.

       The approx-import command must be run by the superuser or the approx(8) user.

OPTIONS

       -c file, --config file
	      Specify an additional configuration file.  May be used multiple times.

       -s, --simulate
	      Process files but do not actually copy them into the cache.

       -q, --quiet
	      Don't print the names of files that are imported.

       -v, --verbose
	      Print the disposition of each file.

EXAMPLES

       To import packages from the local apt(8) cache:

	      approx-import /var/cache/apt/archives/*.deb

       To import packages from another proxy's cache:

	      find other-cache -name "*.deb" | xargs approx-import

       (where other-cache is the pathname of the other proxy's cache directory)

FILES

       /etc/approx/approx.conf
	      Configuration file for approx and related programs.

       /var/cache/approx
	      Default cache directory for archive files.

SEE ALSO

       approx.conf(5), approx(8)

AUTHOR

       Eric Cooper <ecc@cmu.edu>

								     June 2010							  APPROX-IMPORT(8)

APPROX(8)                                                     System Manager's Manual                                                    APPROX(8)

NAME

       approx - proxy server for Debian archive files

SYNOPSIS

       approx [OPTION]...

DESCRIPTION

       approx responds to HTTP requests made by apt-get(8).  It maintains a cache of Debian archive files that have been previously downloaded, so
       that it can respond with a local copy when possible.  If a file not in the cache is requested, approx will download it from a remote Debian
       repository and deliver the contents to the client, simultaneously caching it for future use.

       Over  time,  the approx server cache will grow to contain multiple, unneeded versions of Debian packages.  The approx-gc(8) program removes
       these from the cache.

OPTIONS

       -c file, --config file
              Specify an additional configuration file.  May be used multiple times.

USAGE

       approx is invoked by inetd(8).

EXAMPLES

       Suppose that a client machine's /etc/apt/sources.list file contains the following lines:

              deb     http://apt:9999/debian    testing main
              deb     http://apt:9999/security  testing/updates main
              deb-src http://apt:9999/debian    unstable main

       In this example, apt is the hostname of the approx server machine on the local network.  Each distribution, such as "debian" or "security",
       is mapped to a remote repository in the approx server's configuration file.

       For example, the approx.conf file on the approx server might contain the lines

              debian   http://ftp.debian.org/debian
              security http://security.debian.org

       The mapping scheme is very simple.  If the approx.conf file contains the line

              repository     http://remote-host/initial/path

       then any request to the approx server of the form

              http://approx-server/repository/rest/of/URL

       is rewritten to

              http://remote-host/initial/path/rest/of/URL

       when there is a "cache miss", and that file is cached as

              /var/cache/approx/repository/rest/of/URL

       (Note  that  the repository name on the left-hand side is not included in the rewritten URL unless it is explicitly mentioned in the right-
       hand side's initial path.)

FILES

       /etc/approx/approx.conf
              Configuration file for approx and related programs.

       /var/cache/approx
              Default cache directory for archive files.

SEE ALSO

       approx.conf(5), inetd(8), approx-import(8), approx-gc(8), apt-get(8), sources.list(5)

AUTHOR

       Eric Cooper <ecc@cmu.edu>

                                                                     May 2011                                                            APPROX(8)