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approx.conf(5) [centos man page]

APPROX.CONF(5)                                                  File Formats Manual                                                 APPROX.CONF(5)

NAME
approx.conf - configuration file for approx proxy server SYNOPSIS
/etc/approx/approx.conf DESCRIPTION
Each non-blank line of the configuration file should contain a name/value pair, separated by white space. Comments start with a "#" char- acter and continue to the end of the line. Names that begin with the "$" character are reserved for use as configuration parameters. The following parameters are currently defined: $cache Specifies the location of the approx cache directory (default: /var/cache/approx). It and all its subdirectories must be owned by the approx server (see also the $user and $group parameters, below.) $interval Specifies the time in minutes after which a cached file will be considered too old to deliver without first checking with the remote repository for a newer version (default: 60) $max_rate Specifies the maximum download rate from remote repositories, in bytes per second (default: unlimited). The value may be suffixed with "K", "M", or "G" to indicate kilobytes, megabytes, or gigabytes per second, respectively. $max_redirects Specifies the maximum number of HTTP redirections that will be followed when downloading a remote file (default: 5) $user, $group Specifies the user and group that owns the files in the approx cache (default: approx) $syslog Specifies the syslog(3) facility to use when logging (default: daemon) $pdiffs Specifies whether to support IndexFile diffs (default: true) $offline Specifies whether to deliver (possibly out-of-date) cached files when they cannot be downloaded from remote repositories (default: false) $max_wait Specifies how many seconds an approx(8) process will wait for a concurrent download of a file to complete, before attempting to download the file itself (default: 10) $verbose Specifies whether informational messages should be printed in the log (default: false) $debug Specifies whether debugging messages should be printed in the log (default: false) The other name/value pairs are used to map distribution names to remote repositories. For example, debian http://ftp.debian.org/debian security http://security.debian.org TCP PORT NUMBER
The port on which approx(8) listens is not specified in this file, but in /etc/inetd.conf. The default value is 9999, for compatibility with apt-proxy(8), but it may be changed by running the command dpkg-reconfigure approx SEE ALSO
approx(8), approx-gc(8), inetd(8) AUTHOR
Eric Cooper <ecc@cmu.edu> Apr 2012 APPROX.CONF(5)

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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)
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