lighttpd is an open-source web server more optimized for speed-critical environments than common products while remaining standards-compliant, secure and flexible. This tutorial shows how you can install Lighttpd on a CentOS 6 server with PHP (PHP-FPM).

First, update CentOS to latest version, login root and type the following command

# yum update -y

Install some packages need for the following steps

# yum install wget make cpp gcc gcc-c++ -y

Make a folder where you will store lighttpd and php sources

# mkdir -p /opt/source

Installing Lighttpd

You need to download the latest lighttpd source from http://www.lighttpd.net/download into the /opt/source. Type the following command

# cd /opt/source
# wget http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-1.4.30.tar.gz

Extract lighttpd-1.4.30.tar.gz package

# tar zxvf lighttpd-1.4.30.tar.gz
# cd lighttpd-1.4.30

To build lighttpd, type the following command

# ./configure --prefix=/webserver/lighttpd --disable-ipv6
# make
# make install

During ./configure, you might get some errors like the following

...
configure: error: pcre-config not found, install the pcre-devel package or build with --without-pcre
...

To solve the problem, type the following command

# yum install pcre pcre-devel

...
configure: error: zlib-headers and/or libs where not found, install them or build with --without-zlib
...

To solve the problem, type the following command

# yum install zlib zlib-devel

...
configure: error: bzip2-headers and/or libs where not found, install them or build with --without-bzip2
...

To solve the problem, type the following command

# yum install bzip2 bzip2-devel

Configuring Lighttpd

Access to folder of lighttpd, where lighttpd installed [/webserver/lighttpd] and make dirs

# cd /webserver/lighttpd
# mkdir -p etc/init.d
# mkdir -p etc/sysconfig
# mkdir -p www/htdocs
# mkdir -p var/run
# mkdir -p var/log
# mkdir -p var/lock/subsys
# mkdir -p var/cache

Add a user called “lighttpd” and chown all dir made for lighttpd user

# useradd -s /sbin/nologin -d /webserver/lighttpd/www/ lighttpd
# chown lighttpd -R etc
# chown lighttpd -R var
# chown lighttpd -R www

Return back forder /opt/source/lighttpd-1.4.30 to copy configuration files

# cd /opt/source/lighttpd-1.4.30
# cp doc/config/modules.conf /webserver/lighttpd/etc/
# cp -r doc/config/conf.d /webserver/lighttpd/etc/
# cp -r doc/config/vhosts.d/ /webserver/lighttpd/etc/

Create default lighttpd configuration file: /webserver/lighttpd/etc/lighttpd.conf (download sample lighttpd.conf file). Type the following command

# wget http://www.lifelinux.com/wp-content/uploads/2012/04/lighttpd.conf_.txt -O /webserver/lighttpd/etc/lighttpd.conf

If you want to run lighttpd by default when the system boots, create file called lighttpd in /webserver/lighttpd/etc/init.d/

# vi /webserver/lighttpd/etc/init.d/lighttpd

Append following line

#!/bin/sh
#
# lighttpd     Startup script for the lighttpd server
#
# chkconfig: - 85 15
# description: Lightning fast webserver with light system requirements
#
# processname: lighttpd
# config: /webserver/lighttpd/etc/lighttpd.conf
# config: /webserver/lighttpd/etc/sysconfig/lighttpd
# pidfile: /webserver/lighttpd/var/run/lighttpd.pid
#
# Note: pidfile is assumed to be created
# by lighttpd (config: server.pid-file).
# If not, uncomment 'pidof' line.

# Source function library
. /etc/rc.d/init.d/functions

if [ -f /webserver/lighttpd/etc/sysconfig/lighttpd ]; then
	. /webserver/lighttpd/etc/sysconfig/lighttpd
fi

if [ -z "$LIGHTTPD_CONF_PATH" ]; then
	LIGHTTPD_CONF_PATH="/webserver/lighttpd/etc/lighttpd.conf"
fi

prog="lighttpd"
lighttpd="/webserver/lighttpd/sbin/lighttpd"
RETVAL=0

start() {
	echo -n $"Starting $prog: "
	daemon $lighttpd -f $LIGHTTPD_CONF_PATH
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch /webserver/lighttpd/var/lock/subsys/$prog
	return $RETVAL
}

stop() {
	echo -n $"Stopping $prog: "
	killproc $lighttpd
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /webserver/lighttpd/var/lock/subsys/$prog
	return $RETVAL
}

reload() {
	echo -n $"Reloading $prog: "
	killproc $lighttpd -HUP
	RETVAL=$?
	echo
	return $RETVAL
}

case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		stop
		start
		;;
	condrestart)
		if [ -f /webserver/lighttpd/var/lock/subsys/$prog ]; then
			stop
			start
		fi
		;;
	reload)
		reload
		;;
	status)
		status $lighttpd
		RETVAL=$?
		;;
	*)
		echo $"Usage: $0 {start|stop|restart|condrestart|reload|status}"
		RETVAL=1
esac

exit $RETVAL

Chmod lighttpd with executed permission and create symbolic link in “/etc/init.d”. Type the following command

# chmod +x /webserver/lighttpd/etc/init.d/lighttpd
# ln -s /webserver/lighttpd/etc/init.d/lighttpd /etc/init.d/lighttpd

Create file called “lighttpd” in /webserver/lighttpd/etc/sysconfig

# vi /webserver/lighttpd/etc/sysconfig/lighttpd

Append following line

LIGHTTPD_CONF_PATH=/webserver/lighttpd/etc/lighttpd.conf

To start lighttpd for the first time, type the following command

# /etc/init.d/lighttpd start

Install PHP (PHP-FPM)

Download latest version of PHP at http://download.php.net

# cd /opt/source
# wget http://www.php.net/get/php-5.3.10.tar.gz/from/ca.php.net/mirror

To Extract its, enter

# tar zxvf php-5.3.10.tar.gz
# cd php-5.3.10

To build PHP, I’ll create bash file called build.sh

# vi build.sh

Append following line

#!/bin/sh
"./configure" \
"--prefix=/webserver/php" \
"--enable-fpm" \
"--with-libdir=lib64" \
"--with-bz2" \
"--with-config-file-path=/webserver/php/etc" \
"--with-config-file-scan-dir=/webserver/php/etc/php.d" \
"--with-curl=/usr/local/lib" \
"--with-gd" \
"--with-gettext" \
"--with-jpeg-dir=/usr/local/lib" \
"--with-freetype-dir=/usr/local/lib" \
"--with-kerberos" \
"--with-mcrypt" \
"--with-mhash" \
"--with-mysql" \
"--with-mysqli" \
"--with-pcre-regex=/usr" \
"--with-pdo-mysql=shared" \
"--with-pdo-sqlite=shared" \
"--with-pear=/usr/local/lib/php" \
"--with-png-dir=/usr/local/lib" \
"--with-pspell" \
"--with-sqlite=shared" \
"--with-tidy" \
"--with-xmlrpc" \
"--with-xsl" \
"--with-zlib" \
"--with-zlib-dir=/usr/local/lib" \
"--with-openssl" \
"--with-iconv" \
"--enable-bcmath" \
"--enable-calendar" \
"--enable-exif" \
"--enable-ftp" \
"--enable-gd-native-ttf" \
"--enable-libxml" \
"--enable-magic-quotes" \
"--enable-soap" \
"--enable-sockets" \
"--enable-mbstring" \
"--enable-zip" \
"--enable-wddx"

Type the following command to install PHP

# sh build.sh
# make
# make install

If you have problems building PHP then read the article. Next step, copy php.ini to /webserver/php/etc/, enter

# cp php.ini-production /webserver/php/etc/php.ini

Rename php-fpm.conf, enter

# cd /webserver/php/etc
# cp php-fpm.conf.default php-fpm.conf

Open php-fpm.conf, type

# vi php-fpm.conf

Append following line

[global]
pid = run/php-fpm.pid
error_log = log/php-fpm.log
[www]
listen = 127.0.0.1:9000
listen.allowed_clients = 127.0.0.1
user = nobody
group = nobody
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
pm.max_requests = 500

If you want to run PHP-FPM by default when the system boots, create file called php-fpm in /etc/init.d/

# vi /etc/init.d/php-fpm

Append following line

#! /bin/sh

### BEGIN INIT INFO
# Provides:          php-fpm
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts php-fpm
# Description:       starts the PHP FastCGI Process Manager daemon
### END INIT INFO

php_fpm_BIN=/webserver/php/sbin/php-fpm
php_fpm_CONF=/webserver/php/etc/php-fpm.conf
php_fpm_PID=/webserver/php/var/run/php-fpm.pid

php_opts="--fpm-config $php_fpm_CONF"

wait_for_pid () {
	try=0

	while test $try -lt 35 ; do

		case "$1" in
			'created')
			if [ -f "$2" ] ; then
				try=''
				break
			fi
			;;

			'removed')
			if [ ! -f "$2" ] ; then
				try=''
				break
			fi
			;;
		esac

		echo -n .
		try=`expr $try + 1`
		sleep 1

	done

}

case "$1" in
	start)
		echo -n "Starting php-fpm "

		$php_fpm_BIN $php_opts

		if [ "$?" != 0 ] ; then
			echo " failed"
			exit 1
		fi

		wait_for_pid created $php_fpm_PID

		if [ -n "$try" ] ; then
			echo " failed"
			exit 1
		else
			echo " done"
		fi
	;;

	stop)
		echo -n "Gracefully shutting down php-fpm "

		if [ ! -r $php_fpm_PID ] ; then
			echo "warning, no pid file found - php-fpm is not running ?"
			exit 1
		fi

		kill -QUIT `cat $php_fpm_PID`

		wait_for_pid removed $php_fpm_PID

		if [ -n "$try" ] ; then
			echo " failed. Use force-exit"
			exit 1
		else
			echo " done"
		fi
	;;

	force-quit)
		echo -n "Terminating php-fpm "

		if [ ! -r $php_fpm_PID ] ; then
			echo "warning, no pid file found - php-fpm is not running ?"
			exit 1
		fi

		kill -TERM `cat $php_fpm_PID`

		wait_for_pid removed $php_fpm_PID

		if [ -n "$try" ] ; then
			echo " failed"
			exit 1
		else
			echo " done"
		fi
	;;

	restart)
		$0 stop
		$0 start
	;;

	reload)

		echo -n "Reload service php-fpm "

		if [ ! -r $php_fpm_PID ] ; then
			echo "warning, no pid file found - php-fpm is not running ?"
			exit 1
		fi

		kill -USR2 `cat $php_fpm_PID`

		echo " done"
	;;

	*)
		echo "Usage: $0 {start|stop|force-quit|restart|reload}"
		exit 1
	;;

esac

Chmod php-fpm with executed permission, enter

# chmod +x /etc/init.d/php-fpm

To start PHP-FPM for the first time, type the following command

# /etc/init.d/php-fpm start

Configure PHP-FPM and Lighttpd working together

Uncomment the following line in /webserver/lighttpd/etc/modules.conf

##
## FastCGI (mod_fastcgi)
##
include "conf.d/fastcgi.conf"

Open /webserver/lighttpd/etc/conf.d/fastcgi.conf, and append following line

server.modules += ( "mod_fastcgi" )
fastcgi.server = ( ".php" =>
  ( "php-tcp" =>
    (
      "host" => "127.0.0.1",
      "port" => "9000"
    )
  )
)

Save and close the file. Type the following command to restart Lighttpd

# /etc/init.d/lighttpd restart

This completes the installation steps. To test php you can create a info.php file in the document root folder

# vi /webserver/lighttpd/www/htdocs/info.php

Append following line

<?php
phpinfo();
?>

If you see the above, you have completed a successful installation of lighttpd and php.

The post How To Install Lighttpd And PHP (PHP-FPM) On CentOS 6 appeared first on lifeLinux: Linux Tips, Hacks, Tutorials, Ebooks.

PHP supports the following resource limits directives in php.ini file. To limit resources used by a PHP script edit the file php.ini. Note that this change will affect all websites and PHP scripts on the server.

To find the location of php.ini, you can use the phpinfo() PHP function to find it. Create file with following content:

<?php
phpinfo();
?>

Sample outputs:

To edit php.ini, type the following command:

[root@lifelinux ~]# vi /etc/usr/local/etc/php.ini

Set maximum execution time of each script:

max_execution_time = 30

Set maximum amount of time each script may spend parsing request data

max_input_time = 30

Set maximum amount of memory a script may consume

memory_limit = 64M

Set maximum size of POST data that PHP will accept

post_max_size = 8M

Set maximum allowed size for uploaded files

upload_max_filesize = 8M

Disable/Enable HTTP file uploads (Disallow uploading unless necessary)

file_uploads = Off

Final, restart web server, example restart apache server, type the following command

[root@lifelinux ~]# /etc/init.d/httpd restart

The post How To Limit Resources Used By A PHP Script appeared first on lifeLinux: Linux Tips, Hacks, Tutorials, Ebooks.