The document discusses installing and configuring the Apache web server on a CentOS Linux system. It describes downloading and installing Apache using Yum, installing PHP and MySQL, configuring the databases and virtual hosts, and ensuring file permissions and firewall settings are configured properly. Finally, it verifies the WordPress site is functioning correctly when browsing to the site URL.

1. Apache Web Server
Installation & Configuration
SHAOJIE YANG

2. What is Web Server?
 “Web server can refer to either the hardware(the computer) or the software
(the computer application) that helps to deliver Web content that can be
accessed through the Internet.”
 “The most common use of web servers is to host websites, but there are
other uses such as gaming, data storage or running enterprise applications.”
 -- Definition from Wikipedia

3. Installation Web Server Software
 Environment:
 Linux CentOS 5.5 System
 Apache v2.2.3
 Web content: WordPress software package (v2.8.6)

4. About “Yum”
 Yum – Yellow dog Update, Modified, is a Shell front-end software packages
manager under Fedora, Redhat, SUSE and CentOS.
 Based on RPM package management, yum can auto-download RPM
packages from certain servers and install them. It can also solve dependence
relationships between each RPM, and install all dependency packages at
one time.

5. About Apache HTTP Server
 “The Apache HTTP Server Project is an effort to develop and maintain an open-
source HTTP server for modem operating systems including UNIX and Windows
NT. The goal of this project is to provide a secure, efficient and extensible server
that provides HTTP services in sync with the current HTTP standards.”
 “Apache httpd has been the most popular web server on the Internet since April
1996, and celebrated its 17th birthday as a project this February.”
 “The Apache HTTP Server(httpd) is a project of The Apache Software
Foundation.”
 –Definition from Apache HTTP Server Project) www.httpd.apache.org

6. Download Apache Software
 Download and install apache software through Yum:

7. Download and Install php
 Download and install php through Yum

8. Download WordPress Package
 Web content path: /home/wordpress

9. Unzip WordPress Package

10. Install MySQL Database Server
 Download and install MySQL through Yum:

11. Start MySQL Service

12. Check Default Database/Login as Root

13. Create wordpress Database

14. Login Database as User Wordpress

15. Modify Database Link File/wp-config.php

16. Modify Database Link File/wp-config.php

17. Create Virtual Host File

18. Create Virtual Host File

19. Start Apache Service

20. Modify Iptables File and Restart the Service

21. Open Web Browser to Check the Site

22. It’s a Test Page. Why?
 Apache web server set default web content path as /var/www/html. We can
see there is an “index.html” under the path.
 At the same time, under /etc/httpd/conf.d directory, there is a
“welcome.conf”. To prevent the test page ever being used, we can delete or
rename the file.

23. Rename welcome.conf

24. What Happened Next?

25. Check the Web Content File Permissions

26. Still doesn’t Work, so Disable SeLinux

27. New Problem

28. Solution

29. Open the Site Again

30. Open the Site Again

31. Open the Site Again

32. Open the Site Again

33. Open the Site Again

34. Check Database

35. The Final Product