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Please do not make any edits to this article. Its contents are currently under review and being merged with the Ubuntu Server Guide. To find the Ubuntu Server Guide related to your specific version, please go to: https://help.ubuntu.com/ and click on Ubuntu Server Guide Parent page: Programming Applications This is to help people setup and install a LAMP (Linux-Apache-MySQL-PHP) server in Ubuntu, including Apache 2, PHP 5 (optionally PHP 4 in Ubuntu 6.10 and lower), and MySQL 4.1 or 5.0. When installing from the Ubuntu 6.06 (Dapper Drake) "Server cd", you have the option of choosing to install a LAMP setup at the inital Ubuntu installation screen. That will install apache2, php5 and mysql 5.0.

Check Requirements

{i} As of Ubuntu 7.04 (Feisty), all PHP4 packages have been dropped from the repositories, as the PHP4 branch is not being further developed/supported by the PHP Group. Everything in this article pertaining to PHP4 can therefore only be executed in Ubuntu 6.10 and lower. If you absolutely depend on PHP4 and would like to use the current Ubuntu release, you have to compile it from source.

Some applications require php4 while others will work with php5. Be sure to install the version of php and the corresponding apache2 module for it. You cannot have both php4 and php5 modules running on the same instance of apache2 at the same time. Installing one may remove the other. If you have both php4 and php5 installed, be aware of which version of the apache2 php module you have. If libapache2-mod-php5 is already installed, the php4 package will install libapache-mod-php4 and not libapache2-mod-php4 package. If libapache2-mod-php5 is not installed, installing php4 will install the apache2 php module (libapache2-mod-php4). See this example. Most web applications will use Apache2, php5 and mysql5.0. If no specific versions are mentioned in your web application's documentation, use those.

To install the default LAMP stack in Ubuntu 6.06 LTS (Dapper Drake)

If you did not use the LAMP installer option from the server cd but want to install those same packages without having to reinstall your operating system, use any method to install the following packages 

apache2 php5-mysql libapache2-mod-php5 mysql-server

All of those packages are in the Ubuntu 6.06 LTS (Dapper Drake) main repository. Once LAMP is installed, you need to set a mysql root password and then, depending on your web application, create a database, user and password. That's it!

To install the default LAMP stack in Ubuntu 7.04 (Feisty Fawn) Ubuntu 7.10 (Gutsy Gibbon) Ubuntu 8.04 LTS (Hardy Heron), 8.10 (Intrepid Ibex), 9.04 (Jaunty Jackalope), 9.10 (Karmic Koala) and 10.04 (Lucid Lynx)

As of the 7.04 release, the Ubuntu base system includes Tasksel. You can either install LAMP using tasksel or install the LAMP packages as detailed above. 

sudo tasksel install lamp-server

See Tasksel

Starting over, How to remove the LAMP stack

To remove the LAMP stack remove the following packages:

  • Note: This assumes you have no other programs that require any of these packages. You might wish to simulate this removal first, and only remove the packages that don't cause removal of something desired.
apache2 apache2-mpm-prefork apache2-utils apache2.2-common libapache2-mod-php5 libapr1 libaprutil1 libdbd-mysql-perl libdbi-perl libmysqlclient15off libnet-daemon-perl libplrpc-perl libpq5 mysql-client-5.0 mysql-common mysql-server mysql-server-5.0 php5-common php5-mysql

To also remove the debconf data, use the purge option when removing. To get rid of any configurations you may have made to apache, manually remove the /etc/apache2 directory once the packages have been removed.

Installing Apache 2

To only install the apache2 webserver, use any method to install 

apache2

Troubleshooting Apache

If you get this error: apache2: Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName then use a text editor such as "sudo nano" at the command line or "gksudo gedit" on the desktop to create a new file, 

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

or 

gksu "gedit /etc/apache2/conf.d/fqdn"

then add 

ServerName localhost

to the file and save. This can all be done in a single command with the following: 

echo "ServerName localhost" | sudo tee /etc/apache2/conf.d/fqdn

Virtual Hosts

Apache2 has the concept of sites, which are separate configuration files that Apache2 will read. These are available in /etc/apache2/sites-available. By default, there is one site available called default this is what you will see when you browse to http://localhost or http://127.0.0.1. You can have many different site configurations available, and activate only those that you need. As an example, we want the default site to be /home/user/public_html/. To do this, we must create a new site and then enable it in Apache2. To create a new site:

  • Copy the default website as a starting point. sudo cp /etc/apache2/sites-available/default /etc/apache2/sites-available/mysite
  • Edit the new configuration file in a text editor "sudo nano" on the command line or "gksudo gedit", for example: gksudo gedit /etc/apache2/sites-available/mysite
  • Change the DocumentRoot to point to the new location. For example, /home/user/public_html/
  • Change the Directory directive, replace <Directory /var/www/> to <Directory /home/user/public_html/>
  • You can also set separate logs for each site. To do this, change the ErrorLog and CustomLog directives. This is optional, but handy if you have many sites
  • Save the file

Now, we must deactivate the old site, and activate our new one. Ubuntu provides two small utilities that take care of this: a2ensite (apache2enable site) and a2dissite (apache2disable site). 

sudo a2dissite default && sudo a2ensite mysite

Finally, we restart Apache2: 

sudo /etc/init.d/apache2 restart

If you have not created /home/user/public_html/, you will receive an warning message To test the new site, create a file in /home/user/public_html/: 

echo '<b>Hello! It is working!</b>' > /home/user/public_html/index.html

Finally, browse to http://localhost/

Installing PHP 5

To only install PHP5. use any method to install 

php5

If PHP5 is present on your system, also install 

libapache2-mod-php5

Troubleshooting PHP 5

Does your browser ask if you want to download the php file instead of displaying it? If Apache is not actually parsing the php after you restarted it, install libapache2-mod-php5. It is installed when you install the php5 package, but may have been removed inadvertently by packages which need to run a different version of php. You may also need to actually enable it, by doing sudo a2enmod php5 followed by sudo /etc/init.d/apache2 restart. If sudo a2enmod php5 returns "$ This module does not exist!", you should purge (not just remove) the libapache2-mod-php5 package and reinstall it. Be sure to clear your browser's cache before testing your site again.

Installing PHP 4

To install PHP4, Use any method to install 

php4

If PHP4 is present on your system, installing php4 will install the php module for apache (version 1.3) and not apache2. To use php4 with apache2, install 

libapache2-mod-php4

Troubleshooting PHP 4

Does your browser ask if you want to download the php file instead of displaying it? If Apache is not actually parsing the php after you restarted it, install libapache2-mod-php4. It is installed when you install the php4 package, but may have been removed inadvertently by packages which need to run a different version of php. You may also need to actually enable it, by doing sudo a2enmod php4 followed by sudo /etc/init.d/apache2 restart. If sudo a2enmod php4 returns "$ This module does not exist!", you should purge (not just remove) the libapache2-mod-php5 package and reinstall it. Be sure to clear your browser's cache before testing your site again.

Installing MYSQL with PHP 5

Use any method to install 

mysql-server libapache2-mod-auth-mysql php5-mysql

Installing MYSQL with PHP 4

First enable the universe repository since the packages are not in main

Use any method to install 

mysql-server libapache2-mod-auth-mysql php4-mysql

After installing PHP

You may need to increase the memory limit that PHP imposes on a script. Edit the /etc/php5/apache2/php.ini file and increase the memory_limit value.

After installing MySQL

Set mysql bind address

Before you can access the database from other computers in your network, you have to change its bind address. Note that this can be a security problem, because your database can be accessed by others computers than your own. Skip this step if the applications which require mysql are running on the same machine. type: 

nano /etc/mysql/my.cnf

and change the line: 

bind-address           = localhost

to your own internal ip address e.g. 192.168.1.20 

bind-address           = 192.168.1.20

If your ip address is dynamic you can also comment out the bind-address line and it will default to your current ip. If you try to connect without changing the bind-address you will recieve a "Can not connect to mysql error 10061".

Set mysql root password

Before accessing the database by console you need to type: 

mysql -u root

At the mysql console type: 

mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('yourpassword');

A successful mysql command will show: Query OK, 0 rows affected (0.00 sec) Mysql commands can span several lines. Do not forget to end your mysql command with a semicolon. Note: If you have already set a password for the mysql root, you will need to use: 

mysql -u root -p

(Did you forget the mysql-root password? See MysqlPasswordReset.)

Create a mysql database

mysql> CREATE DATABASE database1;

Create a mysql user

For creating a new user with all privileges (use only for troubleshooting), at mysql prompt type: 

mysql> GRANT ALL PRIVILEGES ON *.* TO 'yourusername'@'localhost' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;

For creating a new user with fewer privileges (should work for most web applications) which can only use the database named "database1", at mysql prompt type: 

mysql> GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES ON database1.* TO 'yourusername'@'localhost' IDENTIFIED BY 'yourpassword';

yourusername and yourpassword can be anything you like. database1 is the name of the database the user gets access to. localhost is the location which gets access to your database. You can change it to '%' (or to hostnames or ip addresses) to allow connections from every location (or only from specific locations) to the database. Note, that this can be a security problem and should only be used for testing purposes! To exit the mysql prompt type: 

mysql> \q

Since the mysql root password is now set, if you need to use mysql again (as the mysql root), you will need to use: 

mysql -u root -p

and then enter the password at the prompt.

Backup-Settings

Please, let's say something in which directories mysql stores the database information and how to configure a backup

Alternatively

There is more than just one way to set the mysql root password and create a database. For example mysqladmin can be used: 

mysqladmin -u root -p password yourpassword

and 

mysqladmin -u root -p create database1

mysqladmin is a command-line tool provided by the default LAMP install.

Phpmyadmin and mysql-admin

All mysql tasks including setting the root password and creating databases can be done via a graphical interface using phpmyadmin or mysql-admin. To install one or both of them, first enable the universe repository

Use any method to install 

phpmyadmin

Troubleshooting Phpmyadmin & mysql-admin

If you get blowfish_secret error: Choose and set a phrase for cryptography in the file /etc/phpmyadmin/blowfish_secret.inc.php and copy the line (not the php tags) into the file /etc/phpmyadmin/config.inc.php or you will receive an error. If you get a 404 error upon visiting http://localhost/phpmyadmin: You will need to configure apache2.conf to work with Phpmyadmin. 

sudo gedit /etc/apache2/apache2.conf

Include the following line at the bottom of the file, save and quit. 

Include /etc/phpmyadmin/apache.conf

Alternative: install phpMyAdmin from source

See the phpMyAdmin page for instructions on how to install phpmyadmin from source:

Mysql-admin

Mysql-admin runs locally, on the desktop. Use any method to install 

mysql-admin

For more information

You really ought to read 2.9.3. Securing the Initial MySQL Accounts from the MySQL Reference Manual.

Edit Apache Configuration

You may want your current user to be the PHP pages administrator. To do so, edit the Apache configuration file : 

$ gksudo "gedit /etc/apache2/apache2.conf"

Search both the strings starting by "User" and "Group", and change the names by the current username and groupname you are using. Then you'll need to restart Apache. (look at the next chapter concerning apache commands) Configuration options relating specifically to user websites (accessed through localhost/~username) are in /etc/apache2/mods-enabled/userdir.conf.

Edit PHP Configuration to Work With MYSQL (Ubuntu Dapper)

In Dapper Drake, "extension=mysql.so" and "extension=mysqli.so" are enabled in the php.ini file out-of-the-box. However, sometimes php is not looking for those files in the right directory. You have then to move your files or modify the php.ini configuration.:

First solution

locate the directory where the extension files are placed: locate mysql.so (change mysql.so in mysqli.so if you want to install the mysqli functions) -then modify the php.ini file to indicate the right place for the extension directory: 

$ gksudo "gedit /etc/php4/apache2/php.ini"

or if you are using php5 

$ gksudo "gedit /etc/php5/apache2/php.ini"

Look for the 'extension_dir' property, and set it to the directory where you found the mysql(i).so file: extension_dir= "/usr/lib/php5/20051025/" Restart apache, and test if your mysql(i) functions are working.

Second solution

-locate the directory where the extension files are placed: locate mysql.so (change mysql.so in mysqli.so if you want to install the mysqli functions) Let's say that you found the file in '/usr/lib/php5/20051025/' -then check in the php.ini file for the extension directory 

$ gksudo "gedit /etc/php4/apache2/php.ini"

or if you are using php5 

$ gksudo "gedit /etc/php5/apache2/php.ini"

Look for the 'extension_dir' property. It should be by default '/usr/lib/php5/ext'. If it's not, change it for this value. -Now create the default directory for extensions: 

$ sudo mkdir /usr/lib/php5/ext

-Copy the extension file to the new directory: 

$ sudo cp /usr/lib/php5/20051025/mysql.so /usr/lib/php5/ext/mysql.so

Change the first path to the one you found with the locate function, and change mysql.so into mysqli.so if you want to use mysqli functions. -Restart apache (see below), and test if your mysql(i) functions are working.

Run, Stop, Test, And Restart Apache

Use the following command to run Apache : 

$ sudo /usr/sbin/apache2ctl start

To stop it, use : 

$ sudo /usr/sbin/apache2ctl stop

To test configuration changes, use : 

$ sudo /usr/sbin/apache2ctl configtest

Finally, to restart it, run : 

$ sudo /usr/sbin/apache2ctl restart

Alternatively, you can use a graphical interface by installing Rapache or the simpler localhost-indicator.

Using Apache

You can access apache by typing 127.0.0.1 or http://localhost (by default it will be listening on port 80) in your browser address bar. By default the directory for apache server pages is /var/www . It needs root access in order to put files in. A way to do it is just starting the file browser as root in a terminal: 

$ sudo nautilus

or if you want to make /var/www your own. (Use only for non-production web servers - this is not the most secure way to do things.) 

$ sudo chown -R $USER:$USER /var/www

Status

To check the status of your PHP installation: 

 $ gksudo "gedit /var/www/testphp.php"

and insert the following line 

 <?php phpinfo(); ?>

View this page on a web browser at http://yourserveripaddress/testphp.php or http://localhost/testphp.php

Securing Apache

If you just want to run your Apache install as a development server and want to prevent it from listening for incoming connection attempts, this is easy to do. 

$ gksudo "gedit /etc/apache2/ports.conf"
$ password:

Change ports.conf so that it contains: 

Listen 127.0.0.1:80

Save this file, and restart Apache (see above). Now Apache will serve only to your home domain, http://127.0.0.1 or http://localhost.

Password-Protect a Directory

There are 2 ways to password-protect a specific directory. The recommended way involves editing /etc/apache2/apache2.conf . (To do this, you need root access). The other way involves editing a .htaccess file in the directory to be protected. (To do this, you need access to that directory).

Password-Protect a Directory With .htaccess

See EnablingUseOfApacheHtaccessFiles Warning: On at least some versions of Ubuntu, .htaccess files will not work by default. See EnablingUseOfApacheHtaccessFiles for help on enabling them.

thumbnails

If you direct your web browser to a directory (rather than a specific file), and there is no "index.html" file in that directory, Apache will generate an index file on-the-fly listing all the files and folders in that directory. Each folder has a little icon of a folder next to it. To put a thumbnail of that specific image (rather than the generic "image icon") next to each image file (.jpg, .png, etc.): ... todo: add instructions on how to do thumbnails here, perhaps using Apache::AutoIndex 0.08 or Apache::Album 0.95 ...

Known problems

Skype incompatibility

Skype uses port 80 for incoming calls, and thus, may block Apache. The solution is to change the port in one of the applications. Usually, port 81 is free and works fine. To change the port number in Skype go to menu Tools > Options, then click on the Advanced tab, then in the box of the port for incoming calls write your preference.

Other Apache Options

Further Information

取自“https://wiki.ubuntu.org.cn/index.php?title=UbuntuHelp:ApacheMySQLPHP&oldid=145724”