Creating Local Repository

7/31/2019 Creating Local Repository

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CREATING LOCALREPOSITORY

By:- Ahmed E & Biniam T



Why Local Repository ?

Safe Band width

once an updated package is downloaded froman official repository, all other machines willdownload it from a local server.

Time /fast

Uses the maximum speed(bandwidth) of theLAN





How to configure

Mirroring (apt-mirror)

- a mirror is an exact copy of a data set

- provide multiple sources of the sameinformation

- providing reliable access to large downloads.

Cacher (apt-cacher)

-Fetch packages that we actually use and cachethem for future requests.



Problems with apt-mirror

It uses up a lot of space, most of it for packageswe will never use

It needs just as much space for every additionalarchitecture or release of Ubuntu/Debian

Because we don't use majority of the packagesapt-mirror downloads, more bandwidth is wastedthan necessary

It is necessary to modify apt's sources file to force

clients to use apt-mirror, this becomes moredifficult when some clients use differentrepositories.

Requires installation of a separate web server



Why apt-cahcher

It uses fraction of the space, especially sincecache is automatically cleansed of old packagesthat are no longer requested

It downloads each package only once, thusreducing bandwidth consumption

It reduces download time .

Makes it easier to configure clients: instead of

changing repository URLs we only change theaddress of the proxy

Single package install, no additional web serverneeded

Minimal server side configuration



How to

1,installing apt-cacher

sudo apt-get install apt-cacher

2, Configuring apt-cacher

- open /etc/apt-cacher/apt-cacher.conf

- Activate Apt-Cacher:

open /etc/default/apt-cacher ,Set AUTOSTART = 1

- Restart Apt-Cacher:

sudo /etc/init.d/apt-cacher restart



contd…

Setting up the LAN clients - edit the file /etc/apt/sources.list on every computer on thenetwork then update.

sudo apt-get update

Automatically update systems every day Create a file called auto-update.sh in /usr/bin:

sudo touch /usr/bin/auto-update.sh

Example to executed every day at 14:30 add

30 14 * * * /usr/bin/auto_update.sh > /dev/null



Contd…

Generating reports

- Set the generate_reports directive to 1 in

/etc/apt-cacher/apt-cacher.conf.

- Check out the reports at:

http://local.machine.running.apt-cache:3142/report

http://10.0.0.156:3142/report



Keeping the files on a local harddisk

Go to /var/cache/apt/archives and copy yourdebian packages to a folder of your choice, forexample,

/home/<username>/repository/ /home/ahmed/repository/

cd ~/repository

and generate a Packages.gz file like this:sudo dpkg-scanpackages . /dev/null | gzip -9c >

Packages.gz

N.B: Make sure build-essential is installed (sudo

aptitude install build-essential) before you run the



Contd…

Add the following line to your sources.list file(/etc/apt/sources.list)

deb file:/home/<username>/repository/ /

Reload your package index like this:

sudo apt-get update

http://home/%3Cusername%3E






This is it !

Thanks

Creating Local Repository

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