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“.

Commands Linux CentOS MySQL
Linux How to Find Files based on the File Size
May 13, 2016
0
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
0
Type the below command in Linux Console Mode: # mysqladmin flush-hosts
Motivational Quotes of the Day
Quotes of the Day
February 12, 2016
0
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 […]
Commands Linux CentOS
How To Install BoogieBounce Email Bounce Checker for Linux
October 6, 2015
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BounceStudio API For Linux, a shared object (.so file), enables your application to recognize thousands of email bounce formats. Easy to use, robust, extremely fast, and accurate, BounceStudio API was designed for professional Linux developers who demand the best. If you’re managing your opt-in email communications on the Linux platform, and in need of a professional bounce detection engine, then BounceStudio API is for you.
CodeIgniter Framework Coding
CodeIgniter: How To Call A Controller from another Controller
October 2, 2015
0
Suppose you have two controllers file, one is users.php and another one is welcome.php. For some reason, you want to load the a function from users controller from inside the controller welcome. Write the below code in your welcome controller file: $this->load->library('../controllers/users'); $this->users->function_name();
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