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WordPress Performance Tuning

28/07/2021 Aucun commentaire

wordpress performance tuning
WordPress is one of the most popular content publishing platform used by some of the very high traffic website. Beauty of the wordpress is in its simplicity. If you will setup your WordPress correctly then your website performance will be fantastic. In this article we will explore various aspect of the WordPress Performance Tuning. Before going further let me clear that why you need to optimize your WordPress website performance.

Why you should spend time on WordPress Performance Tuning ?

Performance tuning or Optimization is required due to following reason:

  1. If you will correctly optimize or tune your WordPress performance then your visitor experience will be better.
  2. Search engines are giving high preference to high speed website.  So your SEO will be improved.
  3. Sometime while doing your WordPress performance tuning you will analyzed and remove unwanted thing from your WordPress which reduce your server work. So your server will have less load.

Tool / Plugin / Stuff you need while WordPress Performance tuning

WordPress performance tuning does not mean to only changing some configuration of your WordPress. There are several area where you need to fine tune like apache(your webserver), Mysql etc. So before going further you need following tool/plugin

  1. Installation of plugin w3 total plugin.
  2. Firefox web browser with firebug tool.
  3. Google Page Speed Test  or GT Metrix.
  4. SSH connection to your server (only required if you want to tune Apache and MySQL performance).
  5. A good Internet speed.

Before going further for your WordPress Performance Tuning please arrange above written tool.

Analyze your WordPress Performance

Before going to optimize your WordPress Performance you need to analyze that whether your website performance is good or bad. Or in other word we can say that you need to check whether your website is served quickly or not. Following are the factor which mainly affect your website performance and you need to check.

  1. Time taken to load your web page
  2. Number of CSS, js and Images are getting downloaded on every request
  3. CSS and JS are placed correctly or not.

You can check your website performance in either Google Page Speed or Gtmetrix. I prefer to use Gtmetrix. Both tool will gives rating to your website Speed and suggestion to improve your website performance further. Gtmetrix will also provide you the timeline waterfall(what is repose time of your website and how many images, css , js or other resources are getting downloaded) of your website. I prefer Gtmetrix because of TimeLine waterfall feature.
You will get following type snapshot for your website in Gtmetrix
WordPress Performance Tuning

In above snapshot you can see the following 4 tab

  1. Page Speed : In this tab you can find your website performance analysis with GooglePageSpeed.
  2. YSlow : In this tab you can find your website performance analysis with YSlow.
  3. TimeLine : In this tab you can find your website page load water fall.
  4. History: In this tab you can find previous history of your website page speed test if you did the test in in future.

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Categories: Logiciel Tags: ,

IPTABLES – better version for webserver like wordpress

23/07/2021 Aucun commentaire

IPTABLES for WordPress

Thanks to:
http://bencane.com/2012/09/17/iptables-linux-firewall-rules-for-a-basic-web-server/
http://www.linux.org/threads/base-iptables-rules-that-will-apply-to-virtually-any-web-server.10/ (used this script with modifications)

NOTES:

Here is a simple script that allows all outbound connections and the inbound connections coming back from those outbound connections (conntrack). Also port 80 and port 22 and port 443 are allowed in. A few more rules as well. Some rules are commented out for your use. Make sure you have an alternate connection because if you block yourself out of ssh, you might be out of luck (restarting the pc/server will clear the rules, unless you have a setting that says on boot read these iptables)

CLEAR ALL:

Clear all rules (this is good to keep handy, maybe save it as a script called iptables-clear-all.sh):

iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
 
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT

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Automating the Deployment of a Scalable WordPress Site

15/07/2021 Comments off

Introduction

In this guide we will create and deploy a scalable WordPress instance consisting of a MySQL database server, a GlusterFS distributed filesystem, Nginx web servers and an Nginx load balancer. By using user-data and droplet meta-data we will automate the deployment of our site. Finally we will provide a Ruby script which will automate this entire process and ease the creation of scalable WordPress sites. Through this tutorial you will learn about the power and flexibility of user-data and droplet meta-data in deploying services on DigitalOcean.

Step One – Planning our Deployment

The deployment we create in this tutorial will consist of a single MySQL database server, multiple GlusterFS servers in a cluster, multiple Nginx web servers and a single Nginx load balancer.

WordPress Deployment

Before we begin we should know:

  • What size droplet we will use for our MySQL server
  • How many GlusterFS nodes we will create
  • What size our GlusterFS nodes will be
  • How many web server nodes we will need
  • What size droplets we will use for our web servers
  • What size droplet we will use for our load balancer
  • The domain name we will use for our new site

We can add additional nodes or scale up the nodes we created if we need to later. Once we have decided on these details we can begin deploying our site.

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How To Configure Secure Updates and Installations in WordPress on Ubuntu

14/07/2021 Comments off

Source: DigitalOcean – Justin Ellingwood

Introduction

WordPress is the most popular CMS (content management system) used on the internet today. While many people use it because it is powerful and simple, sometimes people make a trade-off for convenience at the expense of security.

This is the case in how you choose to assign directory ownership and permissions, and how you choose to perform upgrades. There are a variety of different methods to do this. We will choose what we consider a relatively secure way of upgrading and installing themes and plugins.

In this guide, we assume that you have gone through your initial server setup. You will also need to install a LAMP stack on your VPS.

We will also assume that you have installed WordPress on Ubuntu 12.04. You can follow our guide on how to install WordPress on Ubuntu 12.04 here.

Once you have the user and required software, you can start following this guide.

Set Up Secure Updates with SSH

If you do not have key-based updates and installations configured, you will get a prompt for connection information whenever you attempt to do either of these tasks.

It will ask you to provide FTP credentials, such as a hostname, FTP username, and FTP password:

ftp

FTP is an inherently insecure protocol, so we do not recommend you using it in most cases. We will be configuring our installation to use a secure alternative.

Changing Permissions

If you followed the guide on installing WordPress above, you will notice that you gave permission of the web directory to the Apache web user. This is a very quick way to get started, but can potentially be a security risk. In an ideal situation, you would separate the content owner from the web process. We will do this as part of our preparation for allowing SSH updates.

We will create a user called wp-user to own our WordPress installation.

sudo adduser wp-user

You will be asked a lot of question, including the password you want to set. We do not want to set a password, so press “ENTER” through all of the prompts, including the repeated password questions.

Next, change to the /var/www/html directory, where our WordPress files are being served.

cd /var/www/html

We will give our new user ownership over everything under this directory, changing it from the www-data Apache web user that we configured during installation.

sudo chown -R wp-user:wp-user /var/www/html

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Categories: Logiciel Tags: , , ,

How To Optimize WordPress Performance With MySQL Replication On Ubuntu 14.04

13/07/2021 Comments off

Introduction

In this tutorial, we will teach you how to scale up your WordPress MySQL database server setup using master-slave database replication and the HyperDB plugin for WordPress. Adding more database servers to your environment in this manner allows your WordPress application to read from multiple database servers, increasing read performance.

MySQL replication reaps the most performance benefits for a system that processes frequent reads and infrequent writes, like most WordPress installations. By using a single-master with multiple-slave setup, you can add more slaves to scale your system, until you run out of network bandwidth or your master cannot handle the update load. If you wish, you can add more than one slaves by repeating the “slave” portions of the replication sections of this tutorial.

We are assuming that your setup includes two load balanced WordPress application servers that connect to a separate MySQL database server (see the prerequisites for a tutorial on how to set that up). It is not strictly necessary to have load balanced application servers to follow this tutorial, but your MySQL database server should be separate from your application servers.

Prerequisites

Before continuing with this tutorial, you should have completed two tutorials or have a similar environment:

After following those tutorials, to set up WordPress with two load balanced web application servers and a separate database server, you should have four VPSs. Because we will be dealing with several VPSs, for reference purposes, we will call your four existing VPSs the following:

  • haproxy-www: Your HAProxy server for layer 4 load balancing your WordPress web application servers. This is the entry point into your website
  • wordpress-1: Your first WordPress web application server
  • wordpress-2: Your second WordPress web application server
  • mysql-1: Your MySQL server for WordPress

That is, your environment should look something like this:

WordPress and Separate MySQL Database Server

In addition to your current environment, we will require one additional VPS during this tutorial. We will call it:

  • mysql-2: Your slave MySQL database server

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