Author: Umar

Setup Android development environment on Virtualbox VM

Setup Android development environment on Virtualbox VM

We are going to setup Android development environment with an Android Emulator. If we install Android Studio (IDE) inside a Virtual Machine, the Android Emulator setup will fail. This is because Android Emulator is itself a Linux OS and cannot run inside another Virtual Machine. The way around this is to create two VMs in…

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Release Mind Mate v0.6: Advanced Search Capability

Release Mind Mate v0.6: Advanced Search Capability

The sixth release of Mind Mate has a new sidebar for searching. It supports: Search for text (results are displayed as you type in search field) Search for Icons Limit the search to a selected node and its descendants Make the search case sensitive Along with other minor changes, the accuracy of task notifications is…

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Released Mind Mate v0.5: Capture and store parts of Web (Web Clipper)

Released Mind Mate v0.5: Capture and store parts of Web (Web Clipper)

Just released Mind Mate version 0.5 on Github. This update significantly enhances the image handling capabilities of Mind Mate. Now, you can copy/paste images from the Web Browser, Clipboard or File System directly into Mind Mate. These pasted images are saved inside Mind Mate file, rather than links. This functionality is supported in both Mind…

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Maximo Test Automation with Cypress

Maximo Test Automation with Cypress

Cypress.io is a newish front-end test automation tool. In my brief encounter with Cypress, I found it relatively easy to set up and get started. The development workflow from coding to writing tests and running them is refreshingly smooth as compared to other Selenium based tools. Cypress does have its own limitations though as explained…

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Install Maximo 7.6.1 on Ubuntu, Websphere Liberty, and Oracle Express database

Install Maximo 7.6.1 on Ubuntu, Websphere Liberty, and Oracle Express database

I am starting with an objective to create a relatively faster and lightweight development VM for Maximo 7.6.1. To cut down on the size and hopefully gain bit more speed, I am going to use the following components: Operating System Ubuntu 16.04.5 LTS (64-bit) Database Oracle 11g Express Edition Application Server Websphere Liberty 18.0.0.2 Virtual…

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Optimize Performance of WordPress site

Optimize Performance of WordPress site

I have been optimizing the performance of a WordPress site for a couple of days and managed to shave off about half a second from page load times and significantly improve the performance scores. Evaluating Performance The first step towards optimization is to measure the performance of your site and identify the issues and bottlenecks.…

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How Public Key Cryptography works? (RSA algorithm)

How Public Key Cryptography works? (RSA algorithm)

Public-key Cryptography is asymmetric meaning the key used for encryption cannot be used for decryption. There is a pair of keys, if the message is encrypted with one key, then the other is required for decryption. How Public-key Cryptography works conceptually? Let’s say Alice and Bob want to exchange messages in a secure way. To do it using…

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Calculate Modular Exponentiation (PowerMod) in Javascript (a^p % n)

Calculate Modular Exponentiation (PowerMod) in Javascript (a^p % n)

Computing PowerMod is required for implementing public-key cryptography as it is used to encrypt and decrypt data. Calculating it by regular arithmetic (i.e. calculating pth power of a) doesn’t work with large numbers used for encryption. That’s where PowerMod helps, it calculates the result by keeping the numbers significantly small and within range of the integer data type.…

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Installing Visual Studio Code (VSCode) on Manjaro linux

Installing Visual Studio Code (VSCode) on Manjaro linux

Install from AUR (Method # 1) 1- Acquire build files from Arch Linux user repository. $ curl -L -O https://aur.archlinux.org/cgit/aur.git/snapshot/visual-studio-code-bin.tar.gz 2- Extract the downloaded package $ tar -xvf visual-studio-code-bin.tar.gz 3- Change directory to the extracted package $ cd visual-studio-code-bin 4- Build and install the package $ makepkg -si   Install using Yaourt (Method # 2) It…

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Noteworthy Articles on Philosophy of Mind

Noteworthy Articles on Philosophy of Mind

Here I am putting together a list of articles / resources on ‘Philosophy of Mind’ which I found worth reading: Title Minding Matter Subtitle The closer you look, the more the materialist position in physics appears to rest on shaky metaphysical ground. Author Adam Frank (Professor of Astronomy at the University of Rochester in New…

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