Monthly Archive:: April 2012

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How to Make Image which Can’t Be Cached by Browser

Images as static content on website are usually be cached by browser. Using PHP we can make the image can’t be cached and always
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How to Disable Firewall on Centos

We can use iptables, service, and chkconfig commands to enable and disable firewall in Centos. iptables is an administration tool for IPv4 packet filtering
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How to Create Transparent DIV

This guide will show you how to create transparent div element in HTML. What we need is 1 x 1 pixel transparent .png file
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How to Install Ice Cream Sandwich (Android 4.0) on Samsung Galaxy SII

Before installing Ice Cream Sandwich (ICS) on Samsung Galaxy SII (SGS2), your handphone must be rooted. Read this article for rooting SGS2. Download ICS
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How to Root Samsung Galaxy SII Using CF-Root

Why do we need root? We need root if we want to have full control over our system / handphone. Why do we need
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How to Create and Add Swap File on Linux

Swap file is used by operating system to increase performance. Below are step by step guides how to create swap file in GNU Linux
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How to Fix “PHP Fatal error: Allowed Memory Size of xxx Bytes exhausted…” on WordPress

PHP has a default memory limit of 8MB which is set in php.ini file. If your .php script exceeds more than the limit it
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How to Fix WordPress Error “Briefly unavailable for scheduled maintenance. Check back in a minute”

This maintenance message shows when WordPress updating its version, theme or plugin. Sometimes the updating process gets interrupted or fails for any reason. To