Understanding Raid Published: Sep 14, 2004
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I recently needed to speed up the load time of one of my websites, while I didn't want to change the content itself I could change how fast it was delivered with mod_gzip. This tutorial features dynamic integration of mod_gzip with Apache, no recompile ne

How to install mod_gzip

I recently needed to speed up the load time of one of my websites, Ramprage.com - a popular sports website, while I didn't want to change the content itself I could change how fast it was delivered with mod_gzip. This tutorial features dynamic integration of mod_gzip with Apache, no recompile necessary.

mod_gzip is an Internet Content Acceleration module for the popular Apache Web Server. It compresses the contents delivered to the client. There is no need to install any additional software on the client!
Project website: http://sourceforge.net/projects/mod-gzip/

There is also static integration where gzip is compiled directly into the Apache binary but we do not feature that here.

Test Your Current Website for mod_gzip or compression
http://www.desilva.biz/gzip-test.php
http://leknor.com/code/gziped.php

They should say not compressed, meaning you od not have mod_gzip turned on or installed.

Lets Begin!

Login to your server and su to root.
Download the file to a directory of your choice.
wget http://easynews.dl.sourceforge.net/sourceforge/mod-gzip/mod_gzip-1.3.26.1a.tgz

tar -zxvf mod_gzip-1.3.26.1a.tgz

cd mod_gzip-1.3.26.1a/

Open the makefile to edit the path of Apache builder.
pico Makefile

FIND:
APXS?=/usr/local/sbin/apxs

CHANGE TO:
APXS?=/usr/local/apache/bin/apxs

Save and exit the file, Ctrl+X then Y

Lets compile the module, this will NOT affect your current Apache binary.

make

Now the next command will place the files into your folders such as the .so and .c mod_gzip files and add two lines to your httpd.conf file, it will backup the config file first.

make install

Lets take a look at the config file to see what happened and what we need to do.

pico /usr/local/apache/conf/httpd.conf

Find the mod_gzip which was added: Remove comments # from

FIND:
#LoadModule gzip_module libexec/mod_gzip.so

CHANGE TO:
LoadModule gzip_module libexec/mod_gzip.so

FIND:
#AddModule mod_gzip.c

CHANGE TO:
AddModule mod_gzip.c

Save and close the file, Ctrl+x then Y

Run Test
Now everything should be good to go but we want to do a dry run of how Apache is going to handle this new addition.
This will do a test to Apache but won't restart the live server itself, isn't Apache smart like that eh!

/usr/local/apache/bin/apachectl configtest

It might spit our no VirtualDirective or error that some directories are missing, this is normal and fine.

Restart the Live Server to enabled mod_gzip
/etc/init.d/httpd restart

Test It Again, Now you should have compression enabled giving you faster load times.

Cheers from Canada!

About the Author:
Steven Leggett is the editor of the server resource and hosting tutorial site, www.webhostgear.com and specializes in system administration and web development.

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Comments (1)

  • Gravatar - sachin
    sachin 07:45, June 11, 2007
    In this article RAID 0 and 1 level define perfectly but RAID 5 level is not clear.<br />
    Raid 5 should need to be clear,<br />
    In case of RAID 5 u should provide a conceptual view of disk arrays or data and parity bits.

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