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Chapter
Apache Installation in Linux-Mandrake
Acknowledgment
• The following information has been obtained directly from www.mandrake.com
• All credit it due to the above
Linux
Unix Windows
Linux:Where Unix
meets Windows
GUI based approach to Apache installation.
Apache Configuration Using KDE
• In this section, Apache will be configured using the available tools and utilities of the KDE desktop. This is not necessarily a recommended way to run a web server, but it does offer a convenient environment to begin learning the first steps of running a web server in the safety of an internal LAN.
Checking for Already Installed Apache
Using ktail to Monitor Installation
• Alt-F2 will open a mini-command line in KDE, and kdesu -c ktail will launch ktail as the root user. Ktail will be used throughout the following pages to monitor Apache's log files during configuration
Launching ktail to Monitor the Installation
Alt F2 opens a mini command line
Providing root Password
Accessing the Service Activity
Activating the httpd Service
Starting Stopping and Restarting Apache
Monitoring Start, Stop
and Restart
Accessing the Web
Accessing the Web Server Using Localhost
Gain Access as Super
User to root
Root Folder(File)
Location of Apache Files
Bookmark the Location
Location of Web Files
Renamed Index.html
Loading Your Own Web
• A web can now be stored in this folder to become the website on the Apache server
• Index.html will be the first file that would be accessed first
KDE File Manager as a Limited Web Browser
Accessing the Website from Other MachinesUse IP Address
Location of Logs
Drag and Drop Logs into ktail for Viewing
Other Details in Error Log
Event Details
• Date and time of event
• What type of event
• The event itself
Other Details in Access Log
Other Details on Access Log
• The machine's name or IP address that accessed the server
• Date and time of access• The file that was transferred • An access code and the number of bytes transferred • The server's name or IP address that was requested • The web browser that was used • And some info about the visitor's system
Location of conf Files
A copy has been made of the conf files folder
Making a Copy of the Conf Files
• /etc/httpd/conf is where Apache's configuration files are located. You may want to first make a backup copy of the original configuration directory before making edits to the enclosed files. Ctrl-t opens a konsole in the current directory, and cp -r conf confOrigBackup recursively copies the folder & contents with a new name.
Locating Apache’s Main httpd.conf
File
Editing httpd.conf
Using Kedit
Disabling Some Kedit Options Before Saving Changes to
httpd.conf
Section1: Modules
A Note on Modules
• This first section of Apache's configuration file deals with modules. Modules add extra capabilities to Apache that aren't normally included in its basic set of features. If you install Mandrake's RPM modules for Apache you most likely won't ever need to manually enter any module information yourself, as the required entries will automatically be added with the packages.
• continued
php3 Module: An Example
• mod_php3 is a module that enables this popular scripting language to be used with Apache. If mod_php3 is installed on your system, you can test it by creating a simple test page as seen on the next page
Creating index.php3 for
Testing of php3 Support
Testing for php3 Support
Success in Testing for php3
• You can test Apache by loading the page into Netscape. If php3 wasn't enabled properly, a screen of raw text would appear instead of a normal looking web page as seen here.
A Note on Testing for php3
• This is just a quick way to demonstrate if php3 is enabled on a server. php3 is a full-featured, HTML-embedded scripting language used for creating dynamically generated web pages. One common use of php3 is as a replacement for CGI scripts. Unfortunately this topic can't be covered in detail on these pages. For more info on php3, phpbuilder is a good starting point.
Location of Web
Documents (Root)
Document Root
• The document root is where the web pages of the active website are kept– Similar to the home directory of the
www server in Windows
Display of Directory
Listing
Absence of index File
• A directory listing is displayed as shown in the previous slide in the absence of an index file
Activating Configuration Changes
• After every configuration change Apache must be restarted
• It is usually a good practice to make one change at a time and then check ktail to ensure that the change had been made without any errors before proceeding to make the next change
Starting, Stopping and Restarting Apache
• Commands– apachetl start, apachetl stop,
apachetl restart
• GUI– Apache may also be started, stopped
and restarted through the control services GUI• Access the httpd service for this purpose
Redirecting 404 and
Other Error Messages
Viewing of Serve
Status
Other IP addresses may be specified for
viewing of server status from other machines.
Display of Server
Status
From a different machine.
Server Type and
Port Numbers
Note on Server Type and Port Numbers
• Standalone is recommended for server type
• Information on port numbers can be found in /etc/services
• Users do not have to enter a port number on the address if default port numbers are maintained– Example is Port 80 used for www
service
Phantom User Nobody
• Apache runs as a phantom user known as nobody with very limited access
• Anyone exploiting this name to gain access to Apache will severely be restricted from causing any damage
Phantom User
Location of Apache
Configuration
Server Name
A Note on Server Name
• Server name is the one seen by the browsers in the filed “location name”
• For hosting a name accessible over the Internet, the name must have been registered and it must have a DNS entry on a DNS sever
• Server name need not relate to the machine’s host name
Access to Local Host
Name
Adding a Host Name
The New
Name
A Note on Changing Name
• In general, changing host names should be avoided
• Certain services are configured based on the host name and they may not function properly after changing the name of the host
Permissions on
Folders
Access Given
to Folders
Permission given to others.
Right Clicking on Folders to
Give Permission
Changing Permissions
• Show entries and change into commands will give public to enter the folder and view its contents
Summary
• Windows users may still use some of the techniques learned to configure and operate Linux operations
• However, some command line programming is still inevitable
• In the long run, more GUI based operations is likely to be introduced in Linux
Giving Permission
using the chmod
Command