Make it easier to update the Ubuntu system on the Intranet.

I started my original title name (see). Today I was very excited to see a post on my website when I was looking for an intranet Ubuntu system update solution. You can take a look and find that the apt-proxy stuff is no longer in the Ubuntu 12.04 (LTS) release version, it seems that this post is a little behind the trend. I checked the information. approx is currently available in the released version. The official description is as follows:

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.
 

Approx seems to have replaced apt-proxy and will not provide apt-proxy after 10.04.

The deployment of approx is extremely simple. First, deploy approx:
 
Sudo apt-get install approx
 
Use the following command to obtain the update address in the current/etc/apt/sources. list.
 
$ Grep-E "^ [^ #]" sources. list | cut-d ""-f2 | uniq
Http://au.archive.ubuntu.com/ubuntu/
Http://security.ubuntu.com/ubuntu configuration/etc/approx. conf file, add the following content

Ubuntu http://cn.archive.ubuntu.com/ubuntu.
Ubuntu-extras http://extras.ubuntu.com/ubuntu
Ubuntu-partner http://archive.canonical.com/ubuntu
Ubuntu security http://security.ubuntu.com/ubuntu

$ Sudo/etc/init. d/openbsd-inetd restart
* Restarting internet superserver inetd [OK]

After the service is restarted, the service runs on port 9999.
 
In the client configuration, you can change the/etc/apt/sources. list file of the client to your approx address:
 
Deb http: // approx: 9999/ubuntu/precise main restricted
Deb-src http: // approx: 9999/ubuntu/precise main restricted
Deb http: // approx: 9999/ubuntu/precise-updates main restricted
Deb-src http: // approx: 9999/ubuntu/precise-updates main restricted
Deb http: /approx: 9999/ubuntu/precise universe
Deb-src http: // approx: 9999/ubuntu/precise universe
Deb http: /approx: 9999/ubuntu/precise-updates universe
Deb-src http: // approx: 9999/ubuntu/precise-updates universe
Deb http: /approx: 9999/ubuntu/precise multiverse
Deb-src http: // approx: 9999/ubuntu/precise multiverse
Deb http: /approx: 9999/ubuntu/precise-updates multiverse
Deb-src http: // approx: 9999/ubuntu/precise-updates multiverse
Deb http: // approx: 9999/ubuntu/precise-backports main restricted universe multiverse
Deb-src http: // approx: 9999/ubuntu/precise-backports main restricted universe multiverse
Deb http: // approx: 9999/ubuntu precise-security main restricted
Deb-src http: // approx: 9999/ubuntu precise-security main restricted
Deb http: // approx: 9999/ubuntu precise-security universe
Deb-src http: // approx: 9999/ubuntu precise-security universe
Deb http: // approx: 9999/ubuntu precise-security multiverse
Deb-src http: // approx: 9999/ubuntu precise-security multiverse

You can delete other addresses. The rest is sudo apt-get update ~~~