====== Build and config php,apache,nginx ====== 
===== Install compiler =====
<code bash>
yum install gcc
yum install gcc-c++
yum install automake
yum install make
</code>
===== Build and config PHP and Nginx =====
{{:php:architecture.png|}}
{{:php:fastcgi.jpg|}}
==== Build Nginx ====
  * step1: Install missing library for building source <code bash>
yum install -y pcre-devel.x86_64
yum install gd-devel -y
yum install libxslt-devel
yum install openssl-devel
</code>
  * step2: Build nginx<code bash>
tar zxvf nginx-1.8.0.tar.gz
cd nginx-1.8.0
./configure --prefix=/usr/local/nginx  --with-http_gzip_static_module --with-http_ssl_module --with-http_stub_status_module
make && make install
</code>
  * step3: Check module which built with nginx<code bash>
/usr/local/nginx/sbin/nginx -V
</code>output:<code>
nginx version: nginx/1.8.0
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-http_gzip_static_module --with-http_ssl_module --with-http_stub_status_module</code>
==== Script start nginx ====
<code bash>
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig:   - 85 15
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /etc/nginx/nginx.conf
# config:      /etc/sysconfig/nginx
# pidfile:     /var/run/nginx.pid

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

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

prefix="/usr/local/nginx"
nginx="$prefix/sbin/nginx"
prog=$(basename $nginx)

NGINX_CONF_FILE="$prefix/conf/nginx.conf"

#[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx

lockfile=/var/lock/subsys/nginx

start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    echo -n $"Starting $prog: "
    daemon $nginx -c $NGINX_CONF_FILE
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    configtest || return $?
    stop
    sleep 1
    start
}

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

force_reload() {
    restart
}

configtest() {
  $nginx -t -c $NGINX_CONF_FILE
}

rh_status() {
    status $prog
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}

case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart|configtest)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
            ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
        exit 2
esac

exit $RETVAL


</code>

==== Build PHP with php-cgi and start ====
=== Build PHP with php-cgi ===
  * step1: Install missing library for building source php<code bash>
yum install -y freetype-devel freetype
yum install -y mysql-devel
yum install mysql-devel
yum install pcre-devel
yum install gd-devel
yum install libcurl-devel
yum install openssl-devel
yum install libxml2-devel
yum install libxslt-devel
</code>
  * step2: Build libmcrypt: libmcrypt-2.5.8.tar.gz
  * step3: add below line into  Config file  **[/etc/ld.so.conf]**<code>
  /usr/local/lib
</code>and active ld changes <code bash>
ldconfig
</code>
  * step4: Build PHP with --enable-fastcgi<code bash>
tar zxvf php-5.2.14.tar.gz
cd php-5.2.14
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-libdir=lib64 --enable-fastcgi --disable-rpath --disable-ipv6 --disable-safe-mode --enable-opcache --enable-calendar --enable-bcmath --enable-ftp --enable-soap --enable-shared --enable-mbstring --enable-magic-quotes --enable-sockets --with-openssl --with-zlib --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --with-zlib-dir=/usr --with-mysql --with-mysqli --with-pdo-mysql --with-pear --with-curl --with-curlwrappers --with-mcrypt=/usr/local
ldd php-5.2.14/sapi/cli/php | grep mcrypt
make && make install
</code>
=== Build spawn-fcgi ===
<code bash>
tar zxvf spawn-fcgi-1.6.3.tar.gz
cd spawn-fcgi-1.6.3
./configure --prefix=/usr/local/php
make && make install
</code>
=== Script start php-cgi ===
<code bash>
#!/bin/sh
#
# php-cgi - php-fastcgi swaping via  spawn-fcgi
#
# chkconfig:   - 85 15
# description:  Run php-cgi as app server
# processname: php-cgi
# config:      /etc/sysconfig/phpfastcgi (defaults RH style)
# pidfile:     /var/run/php_cgi.pid
# Note: See how to use this script :
# http://www.cyberciti.biz/faq/rhel-fedora-install-configure-nginx-php5/
# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

spawnfcgi="/usr/local/php/bin/spawn-fcgi"
php_cgi="/usr/local/php/bin/php-cgi"
prog=$(basename $php_cgi)
server_ip=0.0.0.0
server_port=9000
server_user=nobody
server_group=nobody
server_childs=1
pidfile="/var/run/php_cgi.pid"
PHP_FCGI_CHILDREN=15
PHP_FCGI_MAX_REQUESTS=30

# do not edit, put changes in /etc/sysconfig/phpfastcgi
[ -f /etc/sysconfig/phpfastcgi ] && . /etc/sysconfig/phpfastcgi

start() {
    [ -x $php_cgi ] || exit 1
    [ -x $spawnfcgi ] || exit 2
    echo -n $"Starting $prog: "
    export PHP_FCGI_CHILDREN PHP_FCGI_MAX_REQUESTS
    daemon $spawnfcgi -F 1 -a ${server_ip} -p ${server_port} -u ${server_user} -g ${server_group} -P ${pidfile} -f ${php_cgi}
    retval=$?
    echo
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc -p ${pidfile} $prog -QUIT
    retval=$?
    echo
    [ -f ${pidfile} ] && /bin/rm -f ${pidfile}
    return $retval
}

restart(){
    stop
    sleep 2
    start
}

rh_status(){
    status -p ${pidfile} $prog
}

case "$1" in
    start)
        start;;
    stop)
        stop;;
    restart)
        restart;;
    status)
        rh_status;;
    *)
        echo $"Usage: $0 {start|stop|restart|status}"
        exit 3
esac


</code>

==== Build PHP with php-fpm and start ====
=== Build PHP with php-fpm ===
  * step1: Install missing library for building source php<code bash>
yum install -y freetype-devel freetype
yum install -y mysql-devel
yum install mysql-devel
yum install pcre-devel
yum install gd-devel
yum install libcurl-devel
yum install openssl-devel
yum install libxml2-devel
yum install libxslt-devel
yum install bison bison-devel
</code>
  * step2: Build libmcrypt: libmcrypt-2.5.8.tar.gz
  * step3: add below line into  Config file  **[/etc/ld.so.conf]**<code>
/usr/local/lib
</code>and active ld changes <code bash>
ldconfig
</code>
  
  * Step4:If you don't find file configure, run script below<code bash>
./buildconf --force
</code> 
  * step5: Build php-fpm (add option **--enable-fpm**)<code bash>
tar zxvf php-5.3.28.tar.gz
cd php-5.3.28
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-libdir=lib64 --enable-fpm --disable-rpath --disable-ipv6 --disable-safe-mode --enable-opcache --enable-calendar --enable-bcmath --enable-ftp --enable-soap --enable-shared --enable-mbstring --enable-magic-quotes --enable-sockets --with-openssl --with-zlib --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --with-zlib-dir=/usr --with-mysql --with-mysqli --with-pdo-mysql --with-pear --with-curl --with-curlwrappers --with-mcrypt=/usr/local
make & make install
cp php.ini-production /usr/local/php/etc/php.ini
</code>
=== Build PHP7.4 with php-fpm ===
<code bash>
./configure --prefix=/onec/php7 --with-config-file-path=/onec/php7/etc --with-libdir=lib64 --enable-fpm --disable-rpath --disable-ipv6 --disable-safe-mode --enable-opcache --enable-calendar --enable-bcmath --enable-ftp --enable-soap --enable-shared --enable-mbstring --disable-mbregex --enable-magic-quotes --enable-sockets --with-openssl --with-zlib --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --with-zlib-dir=/usr --with-mysql --with-mysqli --without-sqlite3 --without-pdo-sqlite --with-pdo-mysql --with-pear --with-curl --with-curlwrappers --with-mcrypt=/usr/local
</code> option **--disable-mbregex** fix error:<code>
configure: error: Package requirements (oniguruma) were not met
</code>
=== Script start php-fpm ===
php-fpm will be installed on /usr/local/php/sbin/php-fpm
  - Step1: Edit php-fpm.conf:<code>
pid = /var/run/php-fpm.pid
</code> => script will base on this pid to stop,start the process
  - Step2: create script /etc/init.d/php-fpm:<code bash>
#! /bin/sh
#
# chkconfig: - 84 16
# description:  PHP FastCGI Process Manager
# processname: php-fpm
# config: /etc/php-fpm.conf
# config: /etc/sysconfig/php-fpm
# pidfile: /var/run/php-fpm/php-fpm.pid
#
### BEGIN INIT INFO
# Provides: php-fpm
# Required-Start: $local_fs $remote_fs $network $named
# Required-Stop: $local_fs $remote_fs $network
# Short-Description: start and stop PHP FPM
# Description: PHP FastCGI Process Manager
### END INIT INFO

# Standard LSB functions
#. /lib/lsb/init-functions

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

# Check that networking is up.
. /etc/sysconfig/network

# Additional environment file
if [ -f /etc/sysconfig/php-fpm ]; then
      . /etc/sysconfig/php-fpm
fi

if [ "$NETWORKING" = "no" ]
then
        exit 0
fi

RETVAL=0
prog="php-fpm"
pidfile="/var/run/php-fpm/php-fpm.pid"
lockfile="/var/lock/subsys/php-fpm"

start () {
        echo -n $"Starting $prog: "
        dir=$(dirname ${pidfile})
        [ -d $dir ] || mkdir $dir
        daemon --pidfile ${pidfile} /usr/local/php/sbin/php-fpm --daemonize
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch ${lockfile}
}
stop () {
        echo -n $"Stopping $prog: "
        killproc php-fpm
        RETVAL=$?
        echo
        if [ $RETVAL -eq 0 ] ; then
                rm -f ${lockfile} ${pidfile}
        fi
}

restart () {
        stop
        sleep 2
        start
}

reload () {
        echo -n $"Reloading $prog: "
        if ! /usr/local/php/sbin/php-fpm --test ; then
                RETVAL=6
                echo $"not reloading due to configuration syntax error"
                failure $"not reloading $prog due to configuration syntax error"
        else
                killproc -p ${pidfile} php-fpm -USR2
                RETVAL=$?
        fi
        echo
}


# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status php-fpm
        RETVAL=$?
        ;;
  restart)
        restart
        ;;
  reload|force-reload)
        reload
        ;;
  configtest)
        /usr/local/php/sbin/php-fpm --test
        RETVAL=$?
        ;;
  condrestart|try-restart)
        [ -f ${lockfile} ] && restart || :
        ;;
  *)
        echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart|try-restart|configtest}"
        RETVAL=2
        ;;
esac

exit $RETVAL
</code>
==== Config nginx with php-cgi or php-fpm(fastcgi) ====
=== update conf/nginx.conf ===
<code bash>
#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  20;

    #gzip  on;
    server {
        listen 128.199.236.122:80;
        server_name  localhost 123.30.173.67;
        root /data/www/default;
        index index.html index.htm index.php
        fastcgi_index  index.php;
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        location ~ .*\.(php|php5)?$ {
            include        fastcgi_params;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  /data/www/default$fastcgi_script_name;
        }
    }
    include /usr/local/nginx/conf.d/*.conf;
}
</code> => default user which run nginx is **nobody**
=== add config redirect ===
config redirect babies.vn, www.babies.vn to shop.babies.vn<code>
server {    
    server_name babies.vn www.babies.vn;
    return 301 $scheme://shop.babies.vn$request_uri;
}
</code>
=== add config nginx for dokuwiki ===
chown for web:<code bash>
chown -R nobody.nobody /data/www
</code>
add config for mynotes.babies.vn
<code bash>
###mynotes.babies.vn
server {
    listen       80;
    server_name  mynotes.babies.vn;
    root   /data/www/mynotes;

    index index.html index.htm index.php;
    fastcgi_index  index.php;

    access_log /usr/local/nginx/logs/mynotes.babies.vn.access_log;
    error_log /usr/local/nginx/logs/mynotes.babies.vn.error_log;

    error_page  404              /404.html;
    error_page 500 502 503 504  /50x.html;

    location ~* "^.+\.(js|ico|gif|jpg|png|css|swf|htc|xml|bmp)$" {
        access_log  off;
        expires     7d;
    }

    location ~ \.php$ {
      fastcgi_pass   127.0.0.1:9000;
      fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
      include        fastcgi_params;
    }
}
</code>
=== add config nginx for magento ===
config magento for shop.babies.vn
<code bash>
###shop.babies.vn
###shop.babies.vn
server {
    listen       80;
    server_name  shop.babies.vn;
    root   /data/www/babyshopvn;

    index index.html index.htm index.php;
    fastcgi_index  index.php;

    access_log /usr/local/nginx/logs/shop.babies.vn.access_log;
    error_log /usr/local/nginx/logs/shop.babies.vn.error_log;

    error_page  404              /404.html;
    error_page 500 502 503 504  /50x.html;

    location ~* "^.+\.(js|ico|gif|jpg|png|css|swf|htc|xml|bmp)$" {
        access_log  off;
        expires     7d;
    }
    location / {
        index index.html index.php; ## Allow a static html file to be shown first
        try_files $uri $uri/ @handler; ## If missing pass the URI to Magento's front handler
        expires 30d; ## Assume all files are cachable
    }
    location @handler { ## Magento uses a common front handler
        rewrite / /index.php;
    }

    location ~ \.php$ {
      if (!-e $request_filename) { rewrite / /index.php last; }
      fastcgi_pass   127.0.0.1:9000;
      fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
      include        fastcgi_params;
    }
}
</code>

===== Opcache =====
Enable PHP's opcache(Only support for **PHP version 5.6 above**): The entire purpose of the opcache is to **use memory to save CPU and speed up your apps:OPcache** improves PHP performance by **storing precompiled script bytecode in shared memory**, thereby removing the need for PHP to load and parse scripts on each request.
  - Step1: Build PHP with option **--enable-opcache**
  - Step2: Config load module opcache in **php.ini**:<code bash>
zend_extension=opcache.so
</code>
updates in PHP 5.6:
  * will remove MySQL -> So you must convert from MySQL to MySQLi functions for using it
  * Update php.ini<code>
always_populate_raw_post_data = -1
</code>
===== Memcache =====
==== Build and Install Memcache server ====
  - step1: Install missing package<code>
yum install libevent-devel
</code>
  - step2: Download memcache<code>
wget http://memcached.org/files/memcached-1.4.22.tar.gz
</code>
  - step3: Build and install<code bash>
tar xvf memcached-1.4.22.tar.gz
cd memcached-1.4.22
./configure --prefix=/usr/local/memcache
make && make install
</code>
==== Build and Install PHP Memcache ====
  - step1: Build and Install PHP Memcache<code>
wget http://pecl.php.net/get/memcache-2.2.7.tgz
tar xf memcache-2.2.7.tgz
cd memcache-2.2.7
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make & make install
</code>
  - step2: Check where the extension memcache was installed<code bash>
/usr/local/php/bin/php-config | grep extension
</code>output:<code>
  --extension-dir     [/usr/local/php/lib/php/extensions/no-debug-non-zts-20100525]
</code>
  - step3: Check the configuration file php.ini which php auto load:<code bash>
/usr/local/php/bin/php -i | grep php.ini
</code>output:<code>
Configuration File (php.ini) Path => /usr/local/php/etc
Loaded Configuration File => /usr/local/php/etc/php.ini
</code>
  - step4: Edit configuration file php.ini to load memcache.so(search **extension=**)<code>
extension=memcache.so
</code>
==== script stop, start memcache ====
  - step1: create some directory for  running memcache<code>
mkdir -p /var/run/memcached/
mkdir -p /var/lock/subsys/
chown -R nobody.root /var/run/memcached/
chown -R nobody.root /var/lock/subsys/
</code>
  - step2: create script stop, start memcache<code bash>
#! /bin/sh
#
# chkconfig: - 55 45
# description:  The memcached daemon is a network memory cache service.
# processname: memcached
# config: /etc/sysconfig/memcached
# pidfile: /var/run/memcached/memcached.pid

# Standard LSB functions
#. /lib/lsb/init-functions

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

PORT=11211
USER=nobody
MAXCONN=1024
CACHESIZE=64
OPTIONS=""

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

# Check that networking is up.
. /etc/sysconfig/network

if [ "$NETWORKING" = "no" ]
then
        exit 0
fi

RETVAL=0
prog="memcached"
pidfile=${PIDFILE-/var/run/memcached/memcached.pid}
lockfile=${LOCKFILE-/var/lock/subsys/memcached}

start () {
        echo -n $"Starting $prog: "
        # Ensure that /var/run/memcached has proper permissions
        if [ "`stat -c %U /var/run/memcached`" != "$USER" ]; then
                chown $USER /var/run/memcached
        fi

        daemon --pidfile ${pidfile} /usr/local/memcache/bin/memcached -d -p $PORT -u $USER  -m $CACHESIZE -c $MAXCONN -P ${pidfile} $OPTIONS
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch ${lockfile}
}
stop () {
        echo -n $"Stopping $prog: "
        killproc -p ${pidfile} /usr/local/memcache/bin/memcached
        RETVAL=$?
        echo
        if [ $RETVAL -eq 0 ] ; then
                rm -f ${lockfile} ${pidfile}
        fi
}

restart () {
        stop
        start
}


# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status -p ${pidfile} memcached
        RETVAL=$?
        ;;
  restart|reload|force-reload)
        restart
        ;;
  condrestart|try-restart)
        [ -f ${lockfile} ] && restart || :
        ;;
  *)
        echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart|try-restart}"
        RETVAL=2
        ;;
esac

exit $RETVAL
</code>
==== Memcache Admin ====
PHP memcache admin: https://github.com/clickalicious/phpmemadmin

Below are steps to install and configure Memcache Admin:
  - Step1: download Memcache Admin source to **/onec/www/monitor/**:<code bash>
git clone https://github.com/clickalicious/phpmemadmin.git
</code> => source will be downloaded to /onec/www/monitor/phpmemadmin
  - Step2: Install composer in source directory:<code bash>
cd /onec/www/monitor/phpmemadmin
curl -sS https://getcomposer.org/installer | /onec/php/bin/php
</code>
  - Step3: download and install depedency packages<code bash>
/onec/php/bin/php composer.phar install
</code>
  - Step4: Go to directory app and copy .config.dist to .config:<code bash>
cd app
cp .config.dist .config
</code>
  - Step5: Change admin password in .config<code json>
{
  "username": "admin",
  "password": "pass",
  "timeout": -1,
  "cluster": {
    "name": "Cluster",
    "thresholds": {
        "notice": 50,
        "warning": 75,
        "error": 95
    },
    "hosts": [
      {
        "host": "127.0.0.1",
        "port": 11211
      }
    ]
  },
  "render": {
    "auto": true
  },
  "format": {
    "date": "Y-m-dTH:i:s"
  },
  "updatecheck": false
}
</code>
  - Step6: config nginx with php-fpm for run this website:<code>
server {
    listen       80;
    server_name  memcache.zplay.com;
    root   /onec/www/monitor/phpmemadmin/web;

    index index.html index.htm index.php;
    fastcgi_index  index.php;

    access_log /onec/nginx/logs/memcache.access_log;
    error_log /onec/nginx/logs/memcache.error_log;

    error_page  404              /404.html;
    error_page 500 502 503 504  /50x.html;

    location ~* "^.+\.(js|ico|gif|jpg|png|css|swf|htc|xml|bmp)$" {
        access_log  off;
        expires     7d;
    }

    location / {
        index index.html index.php; ## Allow a static html file to be shown first
        try_files $uri $uri/ @handler; ## If missing pass the URI to zend framework's front handler
        expires 30d; ## Assume all files are cachable
    }
    location @handler { ## zend framework uses a common front handler
        rewrite / /index.php;
    }
    location ~ .php/ { ## Forward paths like /js/index.php/x.js to relevant handler
        rewrite ^(.*.php)/ $1 last;
    }
    location ~ \.php$ {
      if (!-e $request_filename) { rewrite / /index.php last; }
      fastcgi_pass   127.0.0.1:9000;
      fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
      include        fastcgi_params;
    }
}
</code>
===== Varnish Cache =====
==== Build and Install varnish cache server ====
Build and Install varnish cache 3.0.7<code bash>
yum install python-docutils
yum install libedit-devel
wget https://repo.varnish-cache.org/source/varnish-3.0.7.tar.gz
tar xf varnish-3.0.7.tar.gz
cd varnish-3.0.7
./configure
make
make install
</code>
===== PHP and apache =====
refer: http://dan.drydog.com/apache2php.html
==== Build PHP and Apache ====
=== Step1: Apache build from source(--enable-so for load php as module) ===
Build missing devel:
<code bash>
yum install apr-devel
yum install apr-util-devel
yum install zlib-devel
yum install openssl-devel
</code>
refer: http://tldp.org/HOWTO/Apache-Compile-HOWTO/apache.html
<code bash>
./configure --prefix=/usr/local/http/ --enable-so --enable-cgi --enable-info --enable-rewrite --enable-speling --enable-usertrack --enable-deflate --enable-ssl --enable-mime-magic --enable-expires --enable-headers
</code>
=== Step2: Build PHP as PHP modules of apache(add option --with-apxs2=/usr/local/apache/bin/apxs) ===
<code bash>
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/http/bin/apxs --with-libdir=lib64  --disable-rpath --disable-ipv6 --enable-opcache --enable-calendar --enable-bcmath --enable-ftp --enable-soap --enable-shared --enable-mbstring  --enable-sockets --with-openssl --with-zlib --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --with-zlib-dir=/usr --with-mysql --with-mysqli --with-pdo-mysql --with-pear --with-curl  --with-mcrypt=/usr/local
</code>
Or optimize build(remove --with-mysql --with-mysqli --with-pear)
<code bash>
 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/http/bin/apxs --with-libdir=lib64  --disable-rpath --disable-ipv6 --enable-calendar --enable-bcmath  --enable-soap --enable-shared --enable-mbstring  --enable-sockets --with-zlib --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --with-zlib-dir=/usr --with-pdo-mysql  --with-curl
</code>
=== Step3: Check modules compiled witch apache ===
<code bash>
/usr/local/apache/bin/httpd -V
/usr/local/apache/bin/httpd -l
/usr/local/apache/bin/httpd -M
</code>
=== Fix error build httpd: APR version 1.4.0 or later is required, found 1.3.9 ===
Below are error detail<code>
checking for APR... configure: WARNING: APR version 1.4.0 or later is required, found 1.3.9
</code>
And steps below help you fix it:
  - Step1: download apr-1.4.8.tar.gz and apr-util-1.5.2.tar.gz from https://archive.apache.org/dist/apr/
  - Step2: Extract source ap-1.4.8.tar.gz and apr-util-1.5.2.tar.gz to httpd-2.4.18/srclib<code>
httpd-2.4.18/srclib/apr
httpd-2.4.18/srclib/apr-util
</code>
  - Step3: Rebuild the http:<code bash>
./configure --prefix=/onec/http/ --enable-so --enable-cgi --enable-info --enable-rewrite --enable-speling --enable-usertrack --enable-deflate --enable-ssl --enable-mime-magic --enable-expires --enable-headers
make
make install
</code>
==== script stop,start apache(/etc/init.d/httpd ====
Edit the script stop, start apache<code bash>
#!/bin/bash
#
#Startup script for the Apache Web Server
#
# chkconfig: - 85 15
# description: Apache is a World Wide Web server.  It is used to serve \
#              HTML files and CGI.
# processname: httpd
# pidfile: /usr/local/http/logs/httpd.pid
# config: /usr/local/http/conf/httpd.conf

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

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

# This will prevent initlog from swallowing up a pass-phrase prompt if
# mod_ssl needs a pass-phrase from the user.
INITLOG_ARGS=""

# Path to the apachectl script, server binary, and short-form for messages.
apachectl=/usr/local/http/bin/apachectl
httpd=/usr/local/http/bin/httpd
pid=/usr/local/http/logs/httpd.pid
prog=httpd
RETVAL=0


# The semantics of these two functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure.  So we just do it the way init scripts
# are expected to behave here.
start() {
        echo -n $"Starting $prog: "
        daemon $httpd $OPTIONS
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && touch /var/lock/subsys/httpd
        return $RETVAL
}
stop() {
        echo -n $"Stopping $prog: "
        killproc $httpd
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f /var/lock/subsys/httpd $pid
}
reload() {
        echo -n $"Reloading $prog: "
        killproc $httpd -HUP
        RETVAL=$?
        echo
}
# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status $httpd
        RETVAL=$?
        ;;
  restart)
        stop
        start
        ;;
  condrestart)
        if [ -f $pid ] ; then
                stop
                start
        fi
        ;;
  reload)
        reload
        ;;
  graceful|help|configtest|fullstatus)
        $apachectl $@
        RETVAL=$?
        ;;
  *)
        echo $"Usage: $prog {start|stop|restart|condrestart|reload|status"
                echo $"|fullstatus|graceful|help|configtest}"
        exit 1
esac

exit $RETVAL
</code>
==== Config apache ====
=== default config ===
<code bash>
ServerRoot "/usr/local/apache/"
Listen 80
LoadModule php5_module        modules/libphp5.so
<IfModule !mpm_netware_module>
<IfModule !mpm_winnt_module>
User apache
Group apache
</IfModule>
</IfModule>
ServerAdmin you@example.com
DocumentRoot "/usr/local/apache//htdocs"
<Directory />
    Options FollowSymLinks
    AllowOverride None
    Order deny,allow
    Deny from all
</Directory>
<Directory "/usr/local/apache//htdocs">
    Options Indexes FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
</Directory>
<IfModule dir_module>
    DirectoryIndex index.html
</IfModule>
<FilesMatch "^\.ht">
    Order allow,deny
    Deny from all
    Satisfy All
</FilesMatch>
ErrorLog "logs/error_log"
LogLevel warn
<IfModule log_config_module>
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common
    <IfModule logio_module>
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>
    CustomLog "logs/access_log" common
</IfModule>
<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/usr/local/apache//cgi-bin/"
</IfModule>
<IfModule cgid_module>
</IfModule>
<Directory "/usr/local/apache//cgi-bin">
    AllowOverride None
    Options None
    Order allow,deny
    Allow from all
</Directory>
DefaultType text/plain
<IfModule mime_module>
    TypesConfig conf/mime.types
    AddType application/x-compress .Z
    AddType application/x-gzip .gz .tgz
</IfModule>
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>
AddType application/x-httpd-php .php
DirectoryIndex index.php index.htm index.html
</code>
=== change config httpd.conf ===
  * add config<code bash>
AddType application/x-httpd-php .php
DirectoryIndex index.php index.htm index.html
Include conf.d/*.conf
</code>
  * change user and group<code bash>
User nobody
Group nobody
</code>
  * add config for shop.babies.vn and mynotes.babies.vn: add conf.d/babies.vn.conf<code bash>
NameVirtualHost *:80
<VirtualHost *:80>
    ServerName shop.babies.vn
    DocumentRoot "/data/www/babyshopvn"
    SetEnv MAGE_IS_DEVELOPER_MODE "false"
    <Directory /data/www/babyshopvn>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride all
        Order Deny,Allow
        Allow from all
    </Directory>
    ErrorLog logs/shop.babies.vn-error_log
    CustomLog logs/shop.babies.vn-access_log common
</VirtualHost>
<VirtualHost *:80>
    ServerName mynotes.babies.vn
    DocumentRoot "/data/www/mynotes"
    <Directory /data/www/mynotes>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride all
        Order Deny,Allow
        Allow from all
    </Directory>
    ErrorLog logs/mynotes.babies.vn-error_log
    CustomLog logs/mynotes.babies.vn-access_log common
</VirtualHost>
</code>Notice:
  * If you use VirtualHost *:80 => all virtuals host must be VirtualHost *:80, **not IP:80**
  * If you use **Options Indexes FollowSymLinks MultiViews**, all other vitual hosts must be this option
=== change config mpm ===
Edit httpd.conf:
  Include conf/extra/httpd-mpm.conf
== default config ==
<code bash>
<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>
</code>
== change config for digitalocean ==
<code bash>
<IfModule mpm_prefork_module>
    StartServers          2
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>
</code>
==== check php information which was built in apache ====
First we create the phpinfo.php with content below:<code php>
<?php phpinfo(); ?>
</code>
Second we run the the phpinfo.php from browser to check PHP information<code>
Configure Command	'./configure' '--prefix=/usr/local/php' '--with-config-file-path=/usr/local/php/etc' '--with-apxs2=/usr/local/http/bin/apxs' '--with-libdir=lib64' '--disable-rpath' '--disable-ipv6' '--enable-calendar' '--enable-bcmath' '--enable-ftp' '--enable-soap' '--enable-fpm' '--enable-shared' '--enable-mbstring' '--enable-sockets' '--with-openssl' '--with-zlib' '--with-gd' '--with-jpeg-dir=/usr' '--with-png-dir=/usr' '--with-freetype-dir=/usr' '--with-zlib-dir=/usr' '--with-mysql' '--with-mysqli' '--with-pdo-mysql' '--with-pear' '--with-curl' '--with-mcrypt=/usr/local'
Configuration File (php.ini) Path	/usr/local/php/etc
Loaded Configuration File	/usr/local/php/etc/php.ini
</code>


===== PHP config and modules check =====
==== Basic config ====
  - Step1: Create first php.ini:<code bash>
cp php.ini-production /usr/local/php/etc/php.ini
</code>
  - Step2: Change some basic parameters:<code>
date.timezone = Asia/Saigon
session.name = PHPSESSID
session.save_path = "/tmp"
upload_max_filesize = 20M
post_max_size = 20M
</code>
==== PHP check ====
  - Module check:<code bash>
php -m
</code>
  - Check configuration load:<code bash>
/usr/local/php/sbin/php-fpm -i | grep php.ini
</code>output:<code>
Configuration File (php.ini) Path => /usr/local/php/etc
Loaded Configuration File => /usr/local/php/etc/php.ini
</code>
  - Check option which is used to build the php<code bash>
/usr/local/php/sbin/php-fpm -i | grep configure
</code>output:<code>
Configure Command =>  './configure'  '--prefix=/usr/local/php' '--with-config-file-path=/usr/local/php/etc' '--with-libdir=lib64' '--enable-fpm' '--disable-debug' '--disable-rpath' '--disable-ipv6' '--disable-safe-mode' '--enable-calendar' '--enable-bcmath' '--enable-ftp' '--enable-soap' '--enable-shared' '--enable-mbstring' '--enable-magic-quotes' '--enable-sockets' '--with-openssl' '--with-zlib' '--with-gd' '--with-jpeg-dir=/usr' '--with-png-dir=/usr' '--with-freetype-dir=/usr' '--with-zlib-dir=/usr' '--with-mysql' '--with-mysqli' '--with-pdo-mysql' '--with-pear' '--with-curl' '--with-curlwrappers' '--with-mcrypt=/usr/local'
</code>
==== check PHP config which web server using ====
  - Step1: Create the phpinfo.php<code php>
<?php phpinfo(); ?>
</code>
  - Step2: Run the phpinfo.php from web server to see the path of php.ini which web server was using, for example:<code>
Configuration File (php.ini) Path	/usr/local/php/etc
Loaded Configuration File	/usr/local/php/etc/php.ini
</code>
==== Check image, font support ====
<code bash>
/gb/php/bin/php -r 'print_r(gd_info());'
</code> => output<code>
Array
(
    [GD Version] => bundled (2.1.0 compatible)
    [FreeType Support] =>
    [T1Lib Support] =>
    [GIF Read Support] => 1
    [GIF Create Support] => 1
    [JPEG Support] => 1
    [PNG Support] => 1
    [WBMP Support] => 1
    [XPM Support] =>
    [XBM Support] => 1
    [JIS-mapped Japanese Font Support] =>
)
</code>
==== check config to display error log ====
  - Step1: Create the test.php file which wrong syntax<code php>
<?php hello(); ?>
</code>
  - Step2: Run the test.php from command line to see the error log<code>
/usr/local/php/bin/php test.php
</code> => If we see the error log in error_log file(path of error_log file in configuration file /usr/local/php/etc/php.ini)<code>
[31-Mar-2015 06:43:53 UTC] PHP Fatal error:  Call to undefined function hello() in ......./test.php on line 1
</code>
  - Step3: Run the test.php from the browser to see error log the same the error log above. If we don't see the error log, we need to review the php config in phpinfo.php and chown for the webserver can update the **error_log** file
==== Config connet PHP to MySQL ====
  - Method1 **Change /etc/my.cnf**: default PHP will use /tmp/mysql.sock for connecting to MySQL, So we will configure the sock in /etc/my.cnf follow below config:<code>
socket          = /tmp/mysql.sock
</code>
  - Method2  **Change php.ini**: change base on config socket path in /etc/my.cnf<code>
[Pdo_mysql]
..........
pdo_mysql.default_socket= /gb/mysql/tmp/mysql.sock
</code>
==== Config to run the web from home directory ====
Default the web server will be run with user nobody or www. To run the web from home which owned by another user, for example:<code bash>
drwx------.  4 quangftp quangftp 4096 Jun 26 14:02 quangftp
</code>
we need to run the chmod command to allow user www(other user) to allow read and excute the file and directory of quangftp:<code bash>
chmod -R 755 /home/quangftp
</code>
==== Config to run PHP code with tag <? ?> ====
Edit php.ini:<code>
short_open_tag = On
</code>
===== PHP Security =====
refer: 
  * http://www.madirish.net/199
  * http://www.cyberciti.biz/tips/php-security-best-practices-tutorial.html
==== Security Hardening Config ====
==== Security Scripts Check php.ini ====
==== Security Scripts Check PHP Project ====
refer:
  * https://github.com/FriendsOfPHP/security-advisories
  * https://github.com/sensiolabs/security-checker