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  • As we all know, in the UNIX environment there are various flavors of this operating system. To name a few: IBM: AIX SUN: SOLARIS HP: HP-UX SILICON GRAPHICS: IRIX And there’s…………………...

Apache1.ppt Apache1.ppt Presentation Transcript

    • Presented by
    • Lonnye Bower
    • Fardin Khan
    • Chris Orona
    APACHE WEB SERVER
  • Introduction Note: Images courtesy of apache.org
  • Introduction to Apache
    • Apache is a web server package that works under Linux as well as under other operating systems
    • The name Apache comes from the concept of extensive patching of existing code
    • The primary advantage of Apache is that it is generally free or available at modest costs
  • Installing Apache
  • Installing Apache From a CD-ROM
    • If your CD-ROM has Apache and you want to use RPM to install the package, issue this command
      • rpm –i apache_1_3_4.rpm
      • (substitute the full name of the Apache package)
  • Installing Apache From a Download
    • Place the downloaded files in a location that will be dedicated to the Apache files, such as /usr/apache
    • Uncompress the files using either gzip or tar and compress
    • You must edit the configuration file
      • You can find more information about this in the Readme file
  • Installing Apache… (con’t)
    • Uncomment all the Modules in the configuration file except
      • cern_meta_module
      • msql_auth_module
      • dld_module
    • Choose either db_auth_module or dbm_auth_module ; they should not be used together
  • Installing Apache… (con’t)
    • Create the configuration file for Linux by issuing the command
      • Configure
    • Compile Apache by issuing the make command
      • The most common error message encountered concerns the socket.h library, most likely because TCP/IP is not installed
  • Installing Apache… (con’t)
    • The result of the compilation will be a binary file called httpd
    • Copy this file into /bin or /usr/bin , where it will reside in the path
  • Setting Up the Website
  • Setting Up the Website
    • Create the home directory for the website, we will use /usr/www/ganesan
    • Create 3 subdirectories under the site directory
      • conf
      • htdocs
      • logs
  • Setting Up the Website (con’t)
    • You will find a subdirectory called conf under the directory where you installed Apache
      • Copy 3 files ( srm.conf-didst, access.conf-dist, http.conf-dist ) from this directory into /usr/www/ganesan/conf
      • If you cannot find the 3 files, use the find command to find them
  • Setting Up the Website (con’t)
    • Rename the 3 files you just copied to drop the “-dist ” portion of the name
    • Edit the httpd.conf file to specify
      • the port number on which your web server responds
      • the user running the httpd daemon, etc…
    • Specify the server name
      • ServerName ganesan.com
  • Setting Up the Website (con’t)
    • Add a line that specifies the root directory for your website
      • DocumentRoot /usr/www/ganesan/htdocs
    • Edit the srm.conf file to set up the web home directory and any special internal command usage
    • Edit the access.conf file to set a basic set of access permissions
  • Setting Up the Website (con’t)
    • In the htdocs directory create an HTML file for the server to read when it starts
      • This can be any HTML file
      • The filename should be default.html
    • Start the httpd daemon
      • httpd –f /usr/www/ganesan/conf
  • Setting Up the Website (con’t)
    • Test the web server by starting a browser and specify the URL http://127.0.0.1/
    • If the system is working properly, you will see a screen with a list of files in the htdocs directory
  • Server Configuration
  • Server Configuration
    • Make sure the ServerType directive is set to “ standalone ”
    • Check the Port device to make sure it is set to the TCP/IP port to which your Apache server listens
    • Set the User directive to either the user ID (UID) or the user name used for all web visitors
  • Server Configuration (con’t)
    • Set the Group directive to either the group ID (GID) or the group name assigned to all web users
    • Modify the ServerAdmin directive to include the e-mail address of the administrator
    • Set the ServerRoot directive to the absolute path to the directory where all Apache resource and configuration files are stored
      • /usr/apache/conf or /etc/httpd
  • Server Configuration (con’t)
    • Set the ServerName directive to the fully qualified domain name of your server
  • Starting and Stopping Apache
  • Starting and Stopping Apache
    • If you are running Apache as a standalone server, you need to start and stop Apache manually
      • Start with httpd –d rootdir –f configs
      • To stop Apache use ps to detect the httpd daemon’s PID and use the kill command to terminate the process
  • A Note on Starting and Stopping Apache
    • Later versions of Apache include a script that does the start and stop tasks for you
  • Virtual Hosting
  • Virtual Hosts
    • A virtual host is a web server that resides on one domain but acts as if it was on another. For example, suppose you control ganesan.com and cis454.com. Instead of setting up 2 servers, you can set up a single machine that serves both domains.
    • Virtual hosting saves on machinery and allows for a lot of flexibility in setting up web servers
  • Setting Up Virtual Hosting
    • If your network uses a name server for DNS, modify it so that the domain name points to your web server for each domain you’ll host
    • Use the ifconfig command to set up the IP address for each domain on your server
      • ifconfig eth0:1 xxx.xxx.xxx.xxx
  • Setting Up Virtual Hosting (con’t)
    • Add the route to the network configuration using the route command
      • route add –host xxx.xxx.xxx.xxx dev eth0:1
    • Edit the Apache httpd.conf file to set up virtual hosting
      • <VirtualHost www.cis454.com>
      • DocumentRoot /usr/www/cis454/htdocs
      • TransferLog /usr/www/cis454/logs/access
      • ErrorLog /usr/www/cis454/logs/errors
      • </VirtualHost>
  • Setting Up Virtual Hosting (con’t)
    • The previous step defines the virtual host for cis454.com and specifies its DocumentRoot , since each virtual host will have different web directories
    • If more than one virtual host is defined, the entries are to be repeated for each
  • A Final Note
    • There are many more configuration options possible with Apache, but they are usually used for commercial sites that require authentication or special handling characteristics
  • Key Terms
    • Apache
    • conf
    • Server Name
    • Virtual Hosting
    • ifconfig
  • Apache Resources
    • For more information on Apache go to
      • www.apache.org
      • www. apacheweek .com
      • dev.apache.org
  • Thank You and Good Luck!
    • If you have any questions regarding Apache and/or any part of this presentation, please feel free to email:
    • Lonnye Bower at [email_address]
    • Chris Orona at [email_address] edu
    • Fardin Khan at Fardin24@ aol .com