Generated by All in One SEO v5.0.0.1, this is an llms.txt file, used by LLMs to index the site. # Arafat Rahman | Sun of Day Looking for a better world ## Sitemaps - [XML Sitemap](https://arafatbd.net/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [Kubernetes Production Setup: Am I in the 8%? My February Check-In on 2026 Goals](https://arafatbd.net/kubernetes-production-setup-am-i-in-the-8-my-february-check-in-on-2026-goals/) - Ship a production-grade Kubernetes setup in Q1 2026. Read my honest February check-in on staying out of the 92% who quit their New Year goals. - [Stop the 92% Failure Rate: Your 2026 New Year's Resolution Playbook](https://arafatbd.net/stop-the-92-failure-rate-your-2026-new-years-resolution-playbook/) - Stop being one of the 92% who fail their New Year's resolutions. Learn the SMART framework (Specific, Measurable, Achievable, Relevant, Time-bound) and see concrete 2026 tech goals and actionable plans for Kubernetes, Go Lang, and career mentorship. - [PHP function to check valid date](https://arafatbd.net/php-function-to-check-valid-date/) - This PHP function checks a string and returns is it valid date format or not - [সম্প্রীতির ডাক (from old blog)](https://arafatbd.net/সম্প্রীতির-ডাক-from-old-blog/) - (০৮ ই মার্চ, ২০০৬ রাত ১২:২১) ছোট বেলায় কবিতা লিখে সবাইকে তাক লাগিয়ে দিতাম মন্তব্য করলেন ধানসিঁড়ি। যাক, খুব ভাল একটি কথা মনে করেছেন। অবশ্য আমি ঝাঁক ঝাঁক কবিতা লিখি না, কারণ কবিতায় নাক গলানোর মত এত সময় দেয়ার সময় হয়ে ওঠেনি। থাক ওসব কথা, তানাহলে অন্যরা আবার আমার কথার ফাঁক খুঁজতে শুরু করবেন। "এই - [Submit HTML form to pop up window](https://arafatbd.net/submit-html-form-to-pop-up-window/) - Some times we may need to submit HTML form to a pop up window. Let’s take a look into the details. For example I have a HTML form. Name : E-mail : We may submit this form - [Nixing the X-Powered-By: A Web Header Hide-and-Seek Adventure](https://arafatbd.net/nixing-the-x-powered-by-a-web-header-hide-and-seek-adventure/) - Uncover web security secrets: Sneakily remove the X-Powered-By header! A playful guide to web header hide-and-seek. CloudFlare, Nginx, Apache and WordPress. - [How to Fix NetBeans jdkhome error](https://arafatbd.net/how-to-fix-netbeans-jdkhome-error/) - I use NetBeans as the IDE both in Linux and Windows environment. I like this NetBeans IDE very much. In my Windows PC Java Runtime Environment was updated recently. I am getting following error message when I start NetBeans. "Cannot find java.exe in specified jdkhome." If I click on yes it opens using default version - [Validate HTML forms using jQuery Ketchup](https://arafatbd.net/validate-html-forms-using-jquery-ketchup/) - Simple, customizable, fantastic jQuery plugin to validate HTML forms. - [PHP Security Tips and Tools](https://arafatbd.net/php-security-tips-and-tools/) - a simple description on most popular web programing language php security tips and tools - [Open Flash Chart :: amazing chart generating application](https://arafatbd.net/open-flash-chart-amazing-chart-generating-application/) - Now a days I am working in Open Flash Chart (OFC). I found this amazing, easy to generate chart and use in web applications. Flash produces high quality graphics. OFC generates high resolution charts, I think you like this very much. Lets take a look into a screenshot. Click on the thumbnail to view actual - [HTML form :: difference between disabled and readonly element](https://arafatbd.net/html-form-difference-between-disabled-and-readonly-element/) - I was working with HTML forms. In the forms I used readonly and disabled input elements. What is the deference between these two attributes of input element? Say for I have an input element in HTML form. If we set the attribute readonly="readonly" then the input element is not editable. This attribute allows the user - [Rich Text Editor, a lightweight jQuery Plugin](https://arafatbd.net/rich-text-editor-a-lightweight-jquery-plugin/) - lwRTE, a Rich Text Editor, a lightweight jQuery Plugin, easy to implement. - [My new english blog.](https://arafatbd.net/my-new-english-blog/) - Welcome everyone to my new english blog. - [Kohana and CodeIgniter PHP Framework](https://arafatbd.net/kohana-and-codeigniter-php-framework/) - Cooperative discussion on CodeIgniter and Kohana PHP Framework. - [Writing review on the book- "Kohana 3.0 Beginner’s Guide"](https://arafatbd.net/writing-review-on-the-book-kohana-3-0-beginner-s-guide/) - One year back I have written a post on Kohana and CodeIgniter. In that post, I wrote I like Kohana than CodeIgniter. Kohana is an open source, object oriented MVC web framework built using PHP5 by a team of volunteers that aims to be swift, secure, and small. Kohana is changing rapidly. But still Kohana - [How to upgrade Ubuntu in command line](https://arafatbd.net/how-to-upgrade-ubuntu-in-command-line/) - I was trying to upgrade Ubuntu in command line. I would like to share the commands in this post. There are two simple commands to upgrade the version of Ubuntu distribution. sudo apt-get update sudo apt-get dist-upgrade These commands perform smart update of Ubuntu. - [ডিসকানেক্ট সমস্যা, আমার অভিযোগ ও গ্রামীণফোনের কাস্টমার সার্ভিস](https://arafatbd.net/disconnect-problem-of-gp-internet/) - লেখার টাইটেলটা কিছুটা শিবরাম চক্রবর্তির গল্পের টাইটেলের মত মনে হতে পারে। গল্পই বটে, জীবন্ত গল্প। ঘটনাটি শুরু থেকেই বলি। তা নাহলে আবার বলবেন শুরুটাতো শুনলাম না। ২০০৮ সালের নভেম্বর মাস থেকে ইন্টারনেট লাইনের গতি এতই ধীর হয়ে গেল যে প্রতিদিনই মেজাজ গরম থাকতো। বউয়ের সাথেও মেজাজ খারাপ করতাম। কিছু দিন পরে পোস্ট পেইড সীম কিনলাম - [What can we do with .htaccess files](https://arafatbd.net/what-can-we-do-with-htaccess-files/) - resource on .htaccess - [Joomla error - Layout "unijoy" not found](https://arafatbd.net/joomla-error-layout-unijoy-not-found/) - Joomla error - Layout "unijoy" not found is the solution of a silly problem related to layout of Joomla. - [Talking with PHP](https://arafatbd.net/talking-with-php/) - I need the current time then I call the php function - time() and get the current Unix timestamp. Then function time() returns the second measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT). Say for, in my website users can register for free for one year. I need - [HTML tag label is useful for Radio buttons](https://arafatbd.net/html-tag-label-is-useful-for-radio-buttons/) - To click on a Radio button is very boring things to me. A radio button is maximum 15 x 15 pixels. So need extra care to click on Radio buttons. When I work with Radio buttons in my web applications, I use HTML tag - 'Label'. For example, I have a Radio button like this- - [Flip and Fun](https://arafatbd.net/flip-and-fun/) - Few days ago Hasin Hayder sent me a link where texts can be flipped. Really interesting and funny. >> Try this to flip your texts. >> I made some modification according to my necessity. You may use Flip Text service for following things IM screen names Put it in your profiles like MySpace, Bebo, Hi5, - [I am from Cyber Fair](https://arafatbd.net/i-am-from-cyber-fair/) - Hi all, I am posting from Cyber Fair. I think its a great arrangment. I wish the best of Cyber Fair - [CakePHP Manual in PDF Format](https://arafatbd.net/cakephp-manual-in-pdf-format/) - "Cake is a rapid development framework for PHP which uses commonly known design patterns like ActiveRecord, Association Data Mapping, Front Controller and MVC. Our primary goal is to provide a structured framework that enables PHP users at all levels to rapidly develop robust web applications, without any loss to flexibility." Manual for CakePHP is available - [Document to PDF Conversion :: Any Idea ?](https://arafatbd.net/document-to-pdf-conversion-any-idea/) - Hi All, Now a days I am working on Document to PDF Conversion using PHP. I got a few tutorial on it, but not complete solution. Have you any idea ? Thanks. - [Another osCommerce Contribution](https://arafatbd.net/another-oscommerce-contribution/) - Hi all, Today I fixed a simple bug of GuestBook module for osCommerce. You can download the module from here. http://www.oscommerce.com/community/contributions,138 Cheers - [My first osCommerce contribution](https://arafatbd.net/my-first-oscommerce-contribution/) - Hi all, Now a days I am working on osCommerce. Recently I am working on Online Calling Card /Phonecard Selling. I developed it in osCommerce (the leading opensource online shopping cart tools in php). I used a module named Unique Virtual Products. I modified it a littlebit and posted to osCommerce contribution section. You may - [Long time no blog](https://arafatbd.net/long-time-no-blog/) - Hi every one, Long time I did not post any post. Accually I don't get inspiration to write any thing, but I have to write many things. - [Time, Tide and me wait for none.](https://arafatbd.net/time-tide-and-me-wait-for-none/) - অনেকেই ভাবতে পারেন এটা আবার কেমন কথা? এত দিনতো শুনে এসেছি Time and Tide wait for none. কিন্তু এটা আবার কোন নতুন কথা? আসলেই সত্যি। ইদানিং দিন গুলো এত বেশি ব্যস্তাতায় কাটছে বাধ্য হয়ে নতুন এই প্রবাদ বাক্যটি তৈরি করতে হল। :P - [Internet at my home !](https://arafatbd.net/internet-at-my-home/) - I am writing this post from my home. Now I am connected with the world. Stay in touch.... ## Pages - [Meet Arafat Rahman: Your Essential Bio and Journey](https://arafatbd.net/about-me-arafat-rahman/) - Technology leader with 21+ years building digital products in software, cloud, and DevOps. I help teams innovate, automate, and scale. - [Privacy Policy](https://arafatbd.net/privacy-policy/) - At Arafat Rahman | Sun of Day, accessible from https://arafatbd.net, one of our main priorities is the privacy of our visitors. This Privacy Policy document contains types of information that is collected and recorded by Arafat Rahman | Sun of Day and how we use it. 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