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  levin 5:04 pm on May 24, 2010 Permalink | Reply
  Tags: apache   

  Apache Web Load Balancing howto 

  Setup Overview

  A apache load balancer http://www.mydomain.com setup for redirect incoming request to two underlying web server www1.mydomain.com, www2.mydomain.com.

  Hosts

  Host#1 www1.mydomain.com: 192.168.1.1
  Host#2 www2.mydomain.com: 192.168.1.2
  The apache load balancer instance http://www.mydomain.com running on RedHat Cluster floating IP 192.168.1.3 or you can activate it on either one server using IP alias without using Cluster Suit.

  Load balancer setup http://www.mydomain.com

  Parameters	Value	Description
  ProxyPass	balancer://<NAME>/	Define your cluster name
  stickysession	BALANCEID | PHPSESSIONID | JSESSIONID	Define your preferred session sticky method, BALANCEID likely by source IP PHP|JSESSIONID require to add extra session header on the node member web server
  nofailover	On | Off	If your web servers do not support session replication, turn this flag on in order to NOT failovering the current session to other member while the node is failed.
  route	node name
  lbmethod	byrequests | bytraffic | bybusyness
  ProxyPreserveHost	On | Off	While application using mod_rewrite for friendly URL and it rely on the REQUEST_URI , set this On to preserve the URL request header to http://www.mydomain.com

  (More …)

   

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  levin 4:06 am on February 25, 2010 Permalink | Reply
  Tags: apache, buddypress ( 2 ), mysql ( 3 ), performance, php ( 5 ), wordpress ( 8 )   

  Performance tuning on Apache, PHP, MySQL, WordPress v1.1 – Updated 

  Introduction

  This tutorial is covering the web server performance tunings on MySQL, PHP and Apache, WordPress and BuddyPress or general web hosting purpose, the tuning example is based on CentOS 5.

  The key of the following performance tuning is focus on memory and caching, most of people host a web site or forum or blog without any tunings or even use the all out-of-box setting.

  (More …)

  levin, Eric Nielsen, WordPressのためのApache,MySQL,PHPパフォーマンスチューニング – rab.bit and one other person are discussing. Toggle Comments

   
  • 

    Chris 10:41 am on August 27, 2010 Permalink | Reply

    Thank for performa tuning server guide.

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    Eric Nielsen 7:31 am on January 21, 2011 Permalink | Reply

    Followed your instructions to setup FastCGI, all worked well accept at the end, when I hit my website, I get:

    #!/bin/bash
    PHP_CGI=/usr/bin/php-cgi
    PHP_FCGI_CHILDREN=16
    PHP_FCGI_MAX_REQUESTS=1000
    export PHP_FCGI_CHILDREN
    export PHP_FCGI_MAX_REQUESTS
    exec $PHP_CGI

    • 

      levin 1:59 pm on January 21, 2011 Permalink | Reply

      Hi, please make sure you have the similar lines as below.

      ScriptAlias /cgi-bin/ “/var/www/cgi-bin/”

      \< Directory "/var/www/cgi-bin" \>
      AllowOverride None
      Options None
      Order allow,deny
      Allow from all
      \< \/Directory \>

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  levin 2:05 am on March 16, 2005 Permalink
  Tags: apache, linux ( 38 )   

  Apache Virtural Host with dynamic ip address 

  1. Configure your apache reading the httpd.conf with external file.
  Append these line into /etc/httpd/conf/httpd.conf
  include /etc/httpd/conf/virtualhost
  include /etc/httpd/conf/mydomainhost

  2. Configure the update script running with cron
  Put a script into /etc/cron.daily/rc.updatehttpd

  ###############################################
  #!/bin/sh
  HTTPADDR=”`ifconfig ppp0 |grep ‘inet addr’|awk ‘{print $2}’|sed -e ‘s/.*://’`”

  HOSTFILE=”/etc/httpd/conf/mydomainhost”

  echo “NameVirtualHost $HTTPADDR:80″ > /etc/httpd/conf/virtualhost

  echo “” > $HOSTFILE
  echo “DocumentRoot /var/www/html” >> $HOSTFILE
  echo “ServerName http://www.mydomain.com”; >> $HOSTFILE
  echo “” >> $HOSTFILE

  /etc/rc.d/init.d/httpd restart

  ##############################################
  Note: The rc.updatehttpd must be 700 or 755