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Showing posts from December, 2011

DirectAdmin Upgrading CSF Firewall

(This post is meant for DirectAdmin beginners, like me.) Finally got the chance to play with one of the production server - to upgrade the CSF Firewall. For this, I have to SSH to the server because upgrading CSF needs root access. Due to restrictions in "DirectAdmin you must login to the root shell" to upgrade csf using csf -u So I SSH-ed to the server and ran the command " csf -u ". But this time, I get the following error. -bash: csf: command not found Okay, the path to CSF is not correct, so just need to cd /usr/sbin/ Then gain root access, su - That's it, can upgrade CSF using the command " csf -u " automatically! :)

Convert SimpleXMLElement to Array

Ok, I know this is simple, but it took me a while to realize this simple method to convert SimpleXMLElement to an array. (I even tempted to write a function to parse and convert the XML tree). Its simple actually, to just just the default PHP functions $xml = <tag>content</tag> print_r(json_decode(json_encode($xml), TRUE));

Samsung Galaxy S2 variants

During trip back at Malaysia, I realize the Galaxy S2 variant there is i9100T. Which makes me wonder what are the difference. [UPDATE, Jan 19] CyanogenMod wiki has a better list of SGS2 variants with support status comments. After Googling around, I came to conclusion that all the variants have: SAME  hardware Specifications and the  DIFFERENCES  are: The I9100 supports 3G 900/2100Mhz and the I9100T supports 3G 850/2100Mhz  The difference in SAR value, as shown in Samsung Website . GT-I9100P - 0.362 W/kg GT-I9100 - 0.338 W/kg GT-I9100M - 0.338 W/kg GT-I9100T - 0.285 W/kg GT-I9100G - 0.247 W/kg (different processor - OMAP SoC) Quote from Samsung Website : This phone meets European Union (EU) requirements concerning exposure to radio waves. Your mobile phone is a radio transmitter and receiver. It is designed and manufactured so as not to exceed the limits for exposure to radio-frequency (RF) energy, as recommended by the EU Council. These limits are part of comp

Notes from BlackBerry DevCon Asia 2011 #BBDevCon

Event: BlackBerry DevCon Asia 2011 Date: 2011-12-08 Updates: The speakers mentioned that the slides are available online. But I'm still not able to find 'em anywhere. Topic: DEV846 – Advanced Web Rendering: webGL, Canvas and Gaming Speakers: Charles Wei, Technical Director, Torch Mobile (Beijing) Co. Ltd. Robin Cao [robin.cao[at]torchmobile.com.sg], Senior Software Engineer, Torch Mobile (Beijing) Tips and Tricks - Avoid creating non-power of two images - Avoid reading back from canvas GLSL Shader - WebGL - Matrices to represent states Libraries Three.js, PhiloGL, Khronos wiki, learningWebGL.com Topic: DEV825 – Powering Immediacy: Putting Push Data to Work for You Speaker: Pratik Sapra, Application Development Consultant, Research In Motion BlackBerry Push - push thru BB internet service - 8kb data - dedicated port - push service plus/ push service essential - mode : - point to point, - multicast, - broadcast. push