LAMP (Linux, Apache, MySQL and PHP) is an open source Web development platform that uses Linux as operating system, Apache as the Web server,MySQL as the relational database management system and PHP as the object-oriented scripting language.
We have already discussed howto install LAMP server using the base installation.If you want to install separately use this procedure.

Apache2 installation

Install apache2 using the following command

sudo apt-get install apache2

Step 1 :

sudo a2enmod deflate

sudo nano /etc/apache2/conf.d/deflate.conf

Add the following lines at the file.

<IfModule mod_deflate.c>
   DeflateCompressionLevel 6
   AddOutputFilterByType DEFLATE text/plain
   AddOutputFilterByType DEFLATE text/html
   AddOutputFilterByType DEFLATE text/xml
   AddOutputFilterByType DEFLATE text/css
   AddOutputFilterByType DEFLATE application/xhtml+xml
   AddOutputFilterByType DEFLATE application/xml

Step 1 :

Check if AppArmor is enabled or not. And make sure MySQL profile is enabled too.

sudo apparmor_status

Step 2 :

Create a profile of Apache2.

sudo aa-genprof apache2

sudo nano /etc/apparmor.d/usr.sbin.apache2

Add the following lines within ^DEFAULT_URI bracket.

How to instal LAMP server in ubuntu 9.04 (Jaunty Jackalop)

The following is the Easy way to Install LAMP server
Same can be used for installing DNS Server, DHCP Server etc

$sudo tasksel

Now you will get a window

Select LAMP server and Go

The acronym LAMP refers to a set of free software programs commonly used together to run dynamic Web sites or servers Linux, the operating system; Apache, the Web server; MySQL, the database management system (or database server) and Perl, PHP, and/or Python, scripting languages. The LAMP stack is a very popular setup and many websites run on it. Best of all, all four of the tools in the stack are free and open source and really easy to get started with.