Month: April 2012

Featured
HTML
PHP
Technology
Tips and Tricks
Tutorial

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 loaded from server by putting random number behind the image file. The HTML output will be: The number 1331835943 is generated dynamically by PHP that forces the browser to always load […]

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centos logo
Featured
Linux
Technology
Tips and Tricks
Tutorial

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 and NAT. service is a command to run a System V init script. It is used to save, stop, and start services. chkconfig command is used to update and query runlevel […]

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Featured
HTML
Technology
Tips and Tricks
Tutorial

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 which is created using Photoshop. 1. Create new image in Photoshop with dimension 1 x 1 pixel. 2. Press Ctrl-+ few times to magnify the image to 1600% 3. Click Paint […]

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Android
Featured
Technology
Tips and Tricks
Tutorial

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 firmware from this website. You have to register first before able to download. Still on sammobile.com website, download Odin downloader. Extract both files and open Odin. Check Re-Partition option. Press PIT […]

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Android
Featured
Technology
Tips and Tricks
Tutorial

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 full control over our handphone? We need full control over our handphone because we can do system and apps backup, install custom ROM, modify current ROM, etc. Below is how to […]

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Featured
Linux
Technology
Tutorial

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 operating system: First of all, we determine the size of the new swap file and multiple it by 1024 to determine the block size. For example, the block size of a […]

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Featured
PHP
Programming
Technology
Wordpress

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 will throw “PHP Fatal Error Allowed Memory Size Exhausted”. To settle this problem, you can add one line code in the beginning of your script: or, add in the following code […]

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Featured
Technology
Wordpress

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 fix this problem, delete .maintenance file in root directory of your WordPress folder. That’s all. Simple as it gets. In case the “. maintenance” file was not there at all. Started […]

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