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approx

caching proxy server for Debian archive files

Approx is an HTTP-based proxy server for Debian-style package archives. It fetches files from remote repositories on demand, and caches them for local use.

Approx saves time and network bandwidth if you need to install or upgrade .deb packages for a number of machines on a local network. Each package is downloaded from a remote site only once, regardless of how many local clients install it. The approx cache typically requires a few gigabytes of disk space.

Approx also simplifies the administration of client machines: repository locations need only be changed in approx's configuration file, not in every client's /etc/apt/sources.list file.

Approx can be used as a replacement for apt-proxy, with no need to modify clients' /etc/apt/sources.list files, or as an alternative to apt-cacher.

Homepage:
Package version:4.1-1~bpo50+1
Architecture:amd64
Distribution:Other
Filename:approx_4.1-1~bpo50+1_amd64.deb

/usr/share/doc/approx/README.concurrency

Concurrency control issues in approx

    Eric Cooper <ecc@cmu.edu>
    June 2008

The priorities for dealing with concurrency in approx are:

1. ensure correctness (no corrupt files delivered to clients or stored
   in the cache)

2. maintain good performance (minimize delays due to serialization,
   minimize number of downloads from remote repositories)

There are two sources of potential confli
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/usr/share/doc/approx/NEWS.Debian.gz

approx (4.0-1) unstable; urgency=low

  The approx program no longer runs as an independent daemon;
  it is now run by inetd.  Since the listening port and addresses
  can be specified in /etc/inetd.conf, the $port and $interface
  configuration parameters have been removed.  Host access control
  using /etc/hosts.allow and /etc/hosts.deny is also supported by inetd.

 -- Eric Cooper <ecc@cmu.edu>
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/usr/share/doc/approx/FAQ

Changing the location of the approx cache

  Move your cache where you want it, then
  replace the /var/cache/approx directory by a symlink:

      mv /var/cache/approx /somewhere
      ln -s /somewhere/approx /var/cache/approx

  You should use a subdirectory for the cache, not a top-level
  filesystem with a lost+found directory in it, to avoid complaints from
  the approx-gc program.

Exporting
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/usr/share/man/man5/approx.conf.5.gz

APPROX.CONF(5)                                        APPROX.CONF(5)



NAME
       approx.conf - co
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/usr/share/man/man8/approx-gc.8.gz

APPROX-GC(8)                                            APPROX-GC(8)



NAME
       approx-gc - garb
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/usr/share/man/man8/approx-import.8.gz

APPROX-IMPORT(8)                                    APPROX-IMPORT(8)



NAME
       approx-import - 
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/usr/share/man/man8/approx-update.8.gz

APPROX-UPDATE(8)                                    APPROX-UPDATE(8)



NAME
       approx-update - 
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/usr/share/man/man8/approx.8.gz

APPROX(8)                                                  APPROX(8)



NAME
       approx - proxy s
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Browse inside approx_4.1-1~bpo50+1_amd64.deb

         [DIR]DEBIAN/ (7)  65535+ mirrors
         [DIR]etc/ (3)  65535+ mirrors
         [DIR]usr/ (2)  65535+ mirrors

Download approx_4.1-1~bpo50+1_amd64.deb

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