UbuntuHelp:HttpReplicator

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https://help.ubuntu.com/community/HttpReplicator

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Guide for setting up http-replicator, a download cache (proxy) for Ubuntu packages

http-replicator is a powerful Python-based proxy or download cache built for Ubuntu and Debian like systems that is meant to cache .deb files (though it can cache others) and if you're using (like most people) http to get packages from your ubuntu repository. It's best when used for a network of Ubuntu machines, saving bandwidth and increasing the speed with which updates are obtained by all machines.

Misc note:
When I say "vi", feel free to use any other editor instead (such as emacs or nano). For a GUI editor, run `gksu gedit` or `kdesu kate`.

To do this we need to download and install a deb, as http-replicator is not available in any of the standard Ubuntu or Debian repositories (Let me know if this is changed).

NOTE: The deb available from the freshmeat page for this package is older then the one here, so please use the one given below.

wget http://gertjan.freezope.org/replicator/http-replicator_3.0_i386.deb
sudo dpkg -i http-replicator_3.0_i386.deb

If, when you download and install this, dpkg attempts to start http-replicator and then complains of not being able to find the command source, it's because /bin/sh in Edgy Eft does not default to bash (As far as I can see). You will need to edit /etc/init.d/http-replicator by doing

sudo vi /etc/init.d/http-replicator

Change

#! /bin/sh

in the first line to

#! /bin/bash

Unfortunately, this .deb doesn't create and do everything it needs to by default, so we need to create the cache for the files and give ownership of the cache to the http-replicator daemon.

sudo mkdir /var/cache/http-replicator
sudo chown proxy.root /var/cache/http-replicator

Now, to configure the proxy, open up the config file with

sudo vi /etc/default/http-replicator

Look at the line

DAEMON_OPTS="$GENERAL_OPTS --port 8080 --log /var/log/http-replicator.log --user proxy"

And change it to

DAEMON_OPTS="$GENERAL_OPTS --port 8080 --log /var/log/http-replicator.log --user proxy --ip=192.168.0.*"

`--ip=192.168.0.*`is whatever network address space your using.

Its probably worth noting that ? and * are wildcards supported by http-replicator. You can make it accept connections from one host (or multiple hosts if you use --ip= more then once) or an entire subnet (as above).

Then remove the line that says

exit 0 # REMOVE THIS LINE TO ACTIVATE THE PROXY SERVER

Save the file and exit.

Restart the daemon (or start for the first time)

sudo /etc/init.d/http-replicator restart

And you're finished with the proxy!

Now, all you have to do is get the clients ready. (The example given below is for proxying packages downloaded by APT).

On the local computer you want to use http-replicator with, add this line to /etc/apt/apt.conf

Acquire::http::Proxy "http://192.168.0.1:8080";

Replace 192.168.0.1 with the IP of the server http-replicator is running on.

More info:

man 1 http-replicator
man 1 http-replicator_maintenance
http://gertjan.freezope.org/replicator/

For the record, the following files are installed by the .deb

./
usr/
usr/share/
usr/share/doc/
usr/share/doc/http-replicator/
usr/share/doc/http-replicator/README.gz
usr/share/doc/http-replicator/copyright
usr/share/doc/http-replicator/examples/
usr/share/doc/http-replicator/examples/apt.conf
usr/share/doc/http-replicator/changelog.gz
usr/share/man/
usr/share/man/man1/
usr/share/man/man1/http-replicator.1.gz
usr/share/man/man1/http-replicator_maintenance.1.gz
usr/bin/
usr/bin/http-replicator
usr/bin/http-replicator_maintenance
etc/
etc/logrotate.d/
etc/logrotate.d/http-replicator
etc/default/
etc/default/http-replicator
etc/init.d/
etc/init.d/http-replicator
etc/cron.weekly/
etc/cron.weekly/http-replicator

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