Web Server : Apache

Install Apache module without re-installation with APXS

2011-03-29T00:18:00.000-07:00

In case we have installed Apache using source code and we would like to install one of its modules called mod_rewrite or whatever. Then we need to do the following to install module without re-installing Apache:

cd apache-source-code
cd modules/mappers
/path/to/apache2/bin/apxs -iac mod_rewrite.c

Add following to httpd.conf file:

LoadModule rewrite_module modules/mod_rewrite.so

Then Restart Apache, thats it!!!

Apache Virtual Hosting

2011-03-15T02:41:00.000-07:00

What is Apache Virtual Hosting?

When setting up more then One Host/Site over Single Server, this is called Virtual Hosting.

Virtual Hosting can be of 2 type's:

1) Name Based Virtual Hosting

2) IP Based Virtual Hosting

1) Name Based Virtual Hosting : Running multiple virtual hosts over a Single IP is called Name Based Virtual Hosting.

2) IP Based Virtual Hosting : When a Server is having multiple IP's and per IP is having it's own Virtual Host is called IP Based Virtual Hosting.

How to Setup Name Based Virtual Hosting and IP Based Virtual Hosting?

Name Based Virtual Host :

edit /etc/httpd/conf/httpd.conf

Listen 192.168.1.1:80

NameVirtualHost 192.168..1.1:80

VirtualHost 192.168..1.1:80

ServerName localhost

ServerAlias localhost.localdomain

DocumentRoot /var/www/html

Directory /var/www/html

AllowOverride None

Options -Indexes -FollowSymLinks

Order allow, deny

Allow from All

/Directory

CustomLog logs/localhost_access.log common

ErrorLog logs/localhost_error.log

/VirtualHost

VirtualHost 192.168..1.1:80

ServerName fistsite.com

ServerAlias www.firstsite.com

DocumentRoot /var/www/html/firstsite

Directory /var/www/html/firstsite

AllowOverride None

Options -Indexes -FollowSymLinks

Order allow, deny

Allow from All

/Directory

CustomLog logs/firstsite_access.log common

ErrorLog logs/firstsite_error.log

/VirtualHost

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IP Based Virtual Host:

edit /etc/httpd/conf/httpd.conf

Listen 192.168.1.1:80

Listen 192.168.1.2:80

VirtualHost 192.168..1.1:80

ServerName localhost

ServerAlias localhost.localdomain

DocumentRoot /var/www/html

Directory /var/www/html

AllowOverride None

Options -Indexes -FollowSymLinks

Order allow, deny

Allow from All

/Directory

CustomLog logs/localhost_access.log common

ErrorLog logs/localhost_error.log

/VirtualHost

VirtualHost 192.168..1.2:80

ServerName fistsite.com

ServerAlias www.firstsite.com

DocumentRoot /var/www/html/firstsite

Directory /var/www/html/firstsite

AllowOverride None

Options -Indexes -FollowSymLinks

Order allow, deny

Allow from All

/Directory

CustomLog logs/firstsite_access.log common

ErrorLog logs/firstsite_error.log

/VirtualHost

VirtualHost 192.168..1.3:80

ServerName second.com

ServerAlias www.second.com

DocumentRoot /var/www/html/second

Directory /var/www/html/second

AllowOverride None

Options -Indexes -FollowSymLinks

Order allow, deny

Allow from All

/Directory

CustomLog logs/second_access.log common

ErrorLog logs/second_error.log

/VirtualHost

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Apache FAQs or Troubleshooting

2011-03-09T21:09:00.001-08:00

Please follow below given link :

http://wiki.apache.org/httpd/FAQ

----
Manoj

Apache 32/64bit installation, caching and compression (deflate, expires and headers)

2008-12-30T00:16:00.000-08:00

How to install Apache+PHP using Source code (32bit and 64bit) ?

Apache Installation

Download Apache source code from www.apache.org, suppose httpd-2.2.8.tar.bz2

Run following commands

tar jxvf httpd-2.2.8.tar.bz2

cd httpd-2.2.8

32 Bit Installation

./configure --prefix=/usr/local/apache2 --enable-ssl --enable-rewrite --enable-module-so --enable-cache --enable-diskcache --enable-expires --enable-file-cache --enable-mem-cache --enable-mime-magic --enable-vhost-alias --enable-usertrack --enable-deflate --enable-headers --enable-proxy

If all goes well run

make && make install

64 Bit Installation

./configure --prefix=/usr/local/apache2 --enable-ssl --enable-rewrite --enable-module-so --enable-cache --enable-diskcache --enable-expires --enable-file-cache --enable-mem-cache --enable-mime-magic --enable-vhost-alias --enable-usertrack --enable-deflate --enable-headers --enable-lib64
--enable-proxy

If all goes well run

make && make install

PHP Installation

Download PHP from www.php.net, suppose php.5.2.6.tar.bz2

tar jxvf php.5.2.6.tar.bz2

cd php.5.2.6

32Bit Installation

./configure --prefix=/usr/local --with-mysql=/usr/local/mysql --with-apxs2=/usr/local/apache2/bin/apxs --enable-xml --enable-bcmath --enable-calendar --with-curl --enable-dom --enable-exif --enable-ftp --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr/local/lib --with-xpm-dir=/usr/X11R6 --enable-magic-quotes --with-openssl --enable-discard-path --with-pear --enable-sockets --with-xmlrpc --enable-zip --with-zlib-dir=/usr/local/lib --enable-soap --with-xsl --with-ldap --enable-json --with-mysqli=/usr/bin/mysql_config --enable-mcrypt --enable-mbstring --with-config-file-path=/usr/local/lib

if all goes well run

make && make install

64Bit Installation

./configure --prefix=/usr/local --with-mysql=/usr/local/mysql --with-apxs2=/usr/local/apache2/bin/apxs --enable-xml --enable-bcmath --enable-calendar --with-curl=/usr/lib --enable-dom --enable-exif --enable-ftp --with-gd --with-jpeg-dir=/usr/lib64 --with-png-dir=/usr/lib64 --with-xpm-dir=/usr/X11R6 --enable-magic-quotes --with-openssl --enable-discard-path --with-pear --enable-sockets --with-xmlrpc --enable-zip --with-zlib-dir=/usr/local/lib --enable-soap --with-xsl --with-ldap --enable-json --with-libdir=lib64 --enable-mcrypt --enable-mbstring --with-config-file-path=/usr/local/lib

if all goes well run

make && make install

After installation add following lines in /usr/local/apache2/httpd.conf to compile php scripts

AddType application/x-httpd-php .php

then restart apache

/usr/local/apache2/bin/apachectl restart/start/stop.

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Apache Caching and compression using mod_deflate, mod_expires and mod_headers

Adding deflate module in apache

At the time of compile use --enable-deflate

or after installation of apache do the following

goto the source code directory -> then goto the modules/filter directory

/usr/local/apache2/bin/apxs -c mod_deflate.c

/usr/local/apache2/bin/apxs -i -a mod_deflate.la

then add the following in httpd.conf

LoadModule deflate_module modules/mod_deflate.so

Deflate Settings in httpd.conf file

#compress content with type html, text, and css

AddOutputFilterByType DEFLATE text/html text/plain text/css text/* text/javascript application/x-javascript

There are issues with compressing other types of files such as mp3 or images. If you don't want to compress images or mp3 files, add following to your configuration:

SetOutputFilter DEFLATE

SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.avi$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.mov$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.mp3$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.mp4$ no-gzip dont-vary

SetEnvIfNoCase Request_URI \.rm$ no-gzip dont-vary

##########Deflate Log

DeflateFilterNote Input instream

DeflateFilterNote Output outstream

DeflateFilterNote Ratio ratio

LogFormat '"%h %l %r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate

#######Setting up access logs as per deflate

CustomLog logs/test_deflate deflate

Save and restart apache.

For virtual host: entry in virtual host file

####Write the following line Virtual Host

SetOutputFilter DEFLATE

For mod_expires & mod_headers

################mod_expires#######################

ExpiresActive on

#ExpiresDefault A600

ExpiresByType text/css "access plus 2 day"

ExpiresByType application/x-javascript "access plus 2 day"

ExpiresByType text/javascript "access plus 2 day"

ExpiresByType image/gif "access plus 7 day"

ExpiresByType image/jpeg "access plus 7 day"

ExpiresByType image/jpg "access plus 7 day"

ExpiresByType image/png "access plus 7 day"

ExpiresByType image/x-icon "access plus 1 day"

#################################################

# Header set Cache-Control "max-age=29030400, public"

Header set Cache-Control "max-age=604800, public"

# # 2 DAYS

Header set Cache-Control "max-age=172800, public, must-revalidate"

# 2 hours

Header set Cache-Control "max-age=7200, must-revalidate"