bc not found error when running Mysql tuning primer script
To fine tuning mysql server, run Mysql tuning primer script on server. But I got error which said bc is not found. So just enter following yum install bc to install it.
Author: David Yin
Opcache Control Panel of PHP 5.5.3 Zend OPcache v7.0.3
I use the new PHP with Opcache v7.0.3. I want to see how it works, just like xcache. Xcache has its official administrator page. OPcache does not have one. So I googled some and installed three control panels. 1. OCP...
How to move blog from MovableType 5.27 to WordPress 3.7
There are very few guide on web about migrate blog from MovableType 5.27 to WordPress 3.7. Here is my own experience to do it. Step 1: Prepare the data on MovableType 5.27 Using MovableType export function is not enough, because...
Install Memcached with Admin Panel on Centos 6.4 64bit
Since I installed PHP 5.5.3 and Zend OPcache v7.0.3, it is good for WordPress opcode already. For other cache optimization, I need a cache system. I choose Memcached server. Part 1. Install Memcached Server I install Memcached with following command: Then...
Replace PHP 5.3.3 by PHP 5.5.3
I have a test before to compare the performance of PHP 5.5 and PHP 5.3. The result is PHP 5.5 is 20% faster. Now, I replaced PHP 5.3.3 by PHP 5.5.3 at this server, which my blog is on. The...
Upgrade to WordPress 3.7
It is time to upgrade to latest WordPress 3.7. New features here: Background Updates Automatic updates for maintenance and security updates. Daily updates for developers using nightly builds. Stronger Password Meter New password meter to encourage users to choose stronger...
Reset your Adobe password to protect yourself
Got an email from Adobe, it recommend me to reset the password of Adobe ID. There is an security incident happened this month early. So to minimize the potential harm to user account, it is better to reset password. Important...
PHP Batch Test Result on LEMP
It is the test based on the LEMP, or Linux, Nginx, MySQL and PHP, on Centos 6.4 64bit at Burst.net 1GB VPS. Details about the testing bed: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 1 cores, 1GB RAM CentOS Linux 6.4...
Install LEMP on Centos 6.4 64bit at Burst.Net VPS
It is a guide to install LEMP on a Centos 6.4 64bit VPS at Burst.net. It is also working on other VPS. LEMP stands for Linux, NginX, MySQL, PHP. First of all, rebuild the OS on VPS with Centos-6.2-x86_64. Other...
Upgrade Calibre to 1.7.0
It is time to get upgrade from Calibre 1.4.0 to 1.7.0. New Features of 1.7.0 Cover grid: Allow using images as the background for the cover grid. To choose an image, go to Preferences->Look & Feel->Cover Grid. An option to...
Checking Valid Emaill address with Regular Expression
This is an example from Wicked Cool PHP, an very handy book for daily PHP coding. I am reading this book now. It has 12 chapters, total 76 tips.
How to config PHP to secure Web Server
There are certain PHP configuration tat affect security features. The following recommended security configuration options is for production servers. register_globals set to off safe_mode set to off error_reporting set to off disable these functions: system(), exec(), passthru(), shell_exec(), proc_open(), and...
New type of media campaign
There are so many types of media campaigns for advertisement. Like television commercial, posters on the street, web site ads, flyers in store, etc. Today, I would like to introduce a new one, Radioactive Media. RadioActive Media is a marketing...
Huge changes of David Yin’s Blog
It is a hard decision. When you saw this post, this blog is moved to new VPS. It is changed from MovableType to WordPress. First of all. I like changes. Changes make us better. It took me about two days...
Windows Update 2013-10
It is update time again. Microsoft 2013 October updates released. There are 26 important updates on my Windows 7.