Hello. My name is A.R. ZERIN. I am an Entrepreneur, Technology Optimist and a Software Engineer from Dhaka, Bangladesh .
Programming is my passion. Life is beautiful, so I am trying hard to enjoy it.
I have completed my Undergraduate Degree in Computer Science & Engineering at 2004 and working in the era of IT for last 14+ years dedicatedly.
I am a believer of, “He who aims at the sky, shoot higher much than he who aims at a tree“.

Malaysia Travel
Sample Visa Application to visit Malaysia
May 15, 2016
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Malaysia Visa Application Form Sample
Date: 16-05-2016   To Visa Officer Malaysia High Commission Baridhara, Dhaka   Sub: Request for Issuance of Multiple Entry Visa   Dear Sir This is for your kind information that I ZERIN, Proprietor of Premium Web Cart. I would like to go Malaysia for tourism purpose with my family. During this tour I will bear […]
Java Mac
Java Jar Application Crash fix on MacOSX
May 14, 2016
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Java Jar Application Crash fix on MacOSX
If you use System.currentTimeMillis(); -- do not forget to add the header import java.lang.*;
Commands Linux CentOS MySQL
Linux How to Find Files based on the File Size
May 13, 2016
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If you want to search all the files that are more than 100MB in your linux server /var folder, type thee below command: # find /var -type f -size +100M To Know which directories are taking most spaces of the hard disk, type the below command in your Linux Console: # du -a /var | […]
Linux CentOS MySQL
MySQL: ERROR 1129 (HY000) Host 'Crowder' is blocked because of many connection errors
May 13, 2016
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Type the below command in Linux Console Mode: # mysqladmin flush-hosts
Motivational Quotes of the Day
Quotes of the Day
February 12, 2016
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Quotes of the Day
Actor Chris Pratt shares some words of encouragement to anyone pursuing a dream: Don’t give up. In his Instagram post, Pratt talks about long, sleepless days of filming and the gratitude he feels for being able to do what he loves. But it wasn’t always that way [emphasis mine]: I felt like posting this to […]
Uncategorized
Install H264 Streaming Module for Apache & PHP on CentOS Server
February 10, 2016
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Download & Install First:
MySQL
MySQL Command — Replace, Append command
February 5, 2016
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To append a text after the content for a column: UPDATE `articles` SET introtext= concat(introtext, ‘</div>’);   To add a text before the content for a column: UPDATE `articles` SET introtext= concat(‘<hr class=”system-pagebreak” /><div style=”display:none;”>’,introtext);   To replace text in the content for a column: UPDATE `articles` SET introtext = REPLACE(introtext, ‘<hr class=”system-pagebreak” />’, ‘</div><hr […]
Algorithm Fundamental php Programming
LUHN Algorithm to Validate Credit Card & Example & Implementation with Programming Example
January 21, 2016
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The LUHN Algorithm is used to distinguish valid Credit Card numbers that is random selection of digits. Credit Card numbers that can be validated by the LUHN Algorithm have numbers that pass the following test: 1. Reverse the order of the digits in the number. 2. Take the first, third, … and every other odd […]
HostWay Server
How To Enable WHM Access in Firewall for Hostway Server
November 7, 2015
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EVERY TIME, I have a new Server from HostWay, I face trouble with WHM Access, I post ticket toHostWay to Resolve the Issue for me. But Now as I know how they do it for me, I should do it myself, getting older, forget things, so sharing it, Now, no chance to forget.  All that […]
India
Indian Visa Requirement
October 26, 2015
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Indian Visa Requirement
Every time I Visit  Indian Embassy, I take the below things with me. Passport with six month validity Old Passport (Do not miss it anyhow, if you do not have it with you, they will send you back) Application Fee (You can deposit it from UCash Agent Near the Embassy) Application Form / e-form (If […]
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