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Is there a tutorial on how to install APC (Alternative PHP Cache on Debian 5.0).

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The best solution for installing APC on Debian systems is to use the dot.deb packages. The official Debian APC package is still using version 3.0.19-2 which is very outdated.

Using the dot.deb package will also allow you to use the latest version of PHP.


For the main Dotdeb repository, depending on your distribution (lenny/oldstable or squeeze/stable), add these two lines to your /etc/apt/sources.list file (choosing a mirror near you) :

Squeeze :

deb stable all
deb-src stable all

Lenny :

deb oldstable all
deb-src oldstable all

(Optional) If you’re running Debian 5.0 “Lenny” and you want PHP 5.3 instead of the default PHP 5.2, add these two additionnal lines too :

deb oldstable all
deb-src oldstable all

You don’t need this if you’re running Debian 6.0 “Squeeze” : PHP 5.3 is the default branch

Then fetch the appropriate GnuPG key


cat dotdeb.gpg | sudo apt-key add -


apt-get update

You should now be able to use the Dotdeb packages with apt-get (or dselect, or aptitude as well…)

To install APC:

apt-get install php5-apc
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I am using Squeeze and after following all your steps w/o a problem, the last step gives me this output, think you can help me? – Joseph Szymborski May 15 '13 at 23:28

Try installing it via aptitude: aptitude install php-apc Afterwars you can configure it in /etc/php5/conf.d/apc.ini Have a look at php-apc for configuration options.

Otherwise you could use "pecl" to install it via pecl install apc. Prequisite is to have the php5-dev module installed.

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Hej shakalandy,i have tryed more time with aptitude install php-apc and pecl install apc but i get resultat " Commant Not Found " what should i do? Tnx – user348961 Apr 11 '11 at 10:57
@DK-System if you don't have aptitude then use apt-get install php-apc. – DerfK Apr 11 '11 at 11:12
Tnx it's works. – user348961 Apr 11 '11 at 12:34

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