نصب suhosin

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Installing Suhosin



Things to do before getting started and questions you probably have.

1) First off you need to create a phpinfo page on your web server, this is so you can see if Suhosin is installed and working or not.



EG: http://mysite.com/phpinfo.php

phpinfo();



That�s all it should contain. You should bring it up to make sure it works.



2) Check to make sure that PHP is NOT compiled with --enable-versioning



You will see this in the Configure Command section at the top, make sure you do not see

--enable-versioning

If it is, the extension will not work. Versioning breaks extensions. You will need to recompile PHP and make sure versioning is turned OFF.



3) This only applies if you are using Zend Optimizer. Make sure you are using at least version 3.2.1 or above of Zend Optimizer. If you are using anything below that there is a known bug in Zend Optimizer that gets caught up in Suhosin while reading zend encoded pages. So be sure to upgrade Optimizer to a more recent release before you install Suhosin to avoid issues.

You can check your version while in shell by doing:

php �v



If you have it installed you�ll see something like:

Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies

with Zend Extension Manager v1.0.10, Copyright (c) 2003-2006, by Zend Technologies

with Zend Optimizer v3.0.1, Copyright (c) 1998-2006, by Zend Technologies



So this version is old and needs to be upgraded. See http://www.webhostgear.com/184.html our Zend Optimizer install guide for more details.







Suhosin works fine on cPanel/WHM servers, DirectAdmin, Plesk and any others. As long as the above mentioned items are met then you should be fine.





Installing Suhosin Extension

Download the source file for the Suhosin extension

 
cd /usr/local/
wget http://www.hardened-php.net/suhosin/_media/suhosin-0.9.18.tgz
tar -zxvf suhosin-0.9.18.tgz
cd suhosin-0.9.18
phpize

OUTPUT will be something like this:

# phpize

Configuring for:

PHP Api Version: 20020918

Zend Module Api No: 20020429

Zend Extension Api No: 20050606

./configure
make

OUTPUT will be something like this:

Libraries have been installed in:

/usr/local/suhosin-0.9.18/modules

make install

OUTPUT will be something like this:

Installing shared extensions: /usr/local/lib/php/extensions/no-debug-non-zts-20020429/

Make a note of the directory location and confirm it exists and has suhosin.so in it:



ls �lah /usr/local/lib/php/extensions/no-debug-non-zts-20020429/

-rwxr-xr-x 1 root root 334K Mar 19 09:17 suhosin.so*



Now copy suhosin.so to /usr/lib/php/extensions since our php.ini points to that directory and not the one the make install used



cp /usr/local/lib/php/extensions/no-debug-non-zts-20020429/suhosin.so /usr/lib/php/extensions/no-debug-non-zts-20020429



Checking PHP

Now we need to check PHP to ensure suhosin will be added in.



Find where your current PHP.ini is:

php -i |grep php.ini

Configuration File (php.ini) Path => /usr/local/Zend/etc/php.ini



Edit the php.ini

nano /usr/local/Zend/etc/php.ini

Step 1) Ensure the include path/extension is set properly.

Search for: extension_dir



You should see something like this:

;;;;;;;;;;;;;;;;;;;;;;;;;

; Paths and Directories ;

;;;;;;;;;;;;;;;;;;;;;;;;;

include_path = ".:/usr/lib/php:/usr/local/lib/php:/usr/lib/php/extensions:/usr/lib/php/extensions/no-debug-non-zts-20020429:" ;

extension_dir = /usr/lib/php/extensions/no-debug-non-zts-20020429/ ; directory in which the loadable extensions (modules) reside



Note the exact path is the same as what we wrote down when we did �make install�

If not, you will need to add it or COPY the file to the new location as mentioned above.



Step 2) Add the suhosin.so extension to php.ini

While still in php.ini search for Dynamic Extensions



/Dynamic Extensions



EG you should see:
;;;;;;;;;;;;;;;;;;;;;;

; Dynamic Extensions ;

;;;;;;;;;;;;;;;;;;;;;;



Add this below:

extension=suhosin.so