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How to change a hosts-file on Android Studio emulated phone

Pre-steps:

Install Android Studio
Add android to PATH in your .bash_profile or .zshrc file:

export ANDROID_SDK=$HOME/Library/Android/sdk
export PATH=$ANDROID_SDK/emulator:$ANDROID_SDK/tools:$PATH
export PATH=${PATH}:$ANDROID_SDK/tools:$ANDROID_SDK/platform-tools

TMC Links

There are many, many resources, websites, mods, discord servers, and other links that people playing technical minecraft might find useful. This is an attempt at collecting and categorizing some of them.
Starring or bookmarking this gist may be useful :)

Contents:

Specialized Resource Collections
Learning/Informational Resources
Educational Video Playlists

So you want to write a sync system for a web app with offline and realtime support? Good luck. You might find the following resources useful.

Overview articles

Database in a browser, a spec (Stepan Parunashvili)

What problem are we trying to solve with a sync system?
The web of tomorrow (Nikita Prokopov)

Deploy Kubernetes with Ansible

Requirements

We will need at least two nodes, Ansible, and a kubectl. That's enough to begin.

My ansible role: https://github.com/allanger/kubeadm-ansible-role

I am using Ubuntu 21.04 on all my servers so my Ansible role is written for Debian-based distros. (I will be happy if anybody adds support for other distros)

Preparing system

Beginner's Guide To Console Input In C#

Note: I recommend reading this gist in order because Examples 1-6 build on each other.

Example 1: Getting Console Input With Console.ReadLine
_{How to get console input.}

Example 2: Parsing The Console Input From String To Int32
_{How to convert the console input into a numeric value.}

Example 3: Validating Console Input With Int32.TryParse
_{How to validate numeric input to prevent bugs in your code.}

[Example 4: Looping Until User Provides Valid Input](https://gist.github.com/ZacharyPatten/798ed612

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

Generate ssh key pairs for accounts and add them to GitHub accounts.

Install nginx (Homebrew)

brew install nginx

Configuration file for nginx will be at /usr/local/etc/nginx/nginx.conf

Web apps can be stored at /usr/local/var/www

Commands

Start:

	https://jason.pureconcepts.net/2015/10/install-apache-php-mysql-mac-os-x-el-capitan/
	https://jason.pureconcepts.net/2012/10/install-apache-php-mysql-mac-os-x/
	https://coolestguidesontheplanet.com/get-apache-mysql-php-and-phpmyadmin-working-on-osx-10-11-el-capitan/
	http://www.alphansotech.com/blogs/setup-apache-mysql-php-phpmyadmin-mac-osx/
	https://mallinson.ca/osx-web-development/
	https://coolestguidesontheplanet.com/get-apache-mysql-php-and-phpmyadmin-working-on-osx-10-11-el-capitan/


	##Apache httpd file location
	/etc/apache2

	#!/bin/bash

	# https://www.eevblog.com/forum/thermal-imaging/infiray-and-their-p2-pro-discussion/200/
	# https://superuser.com/questions/1009969/how-to-extract-a-frame-out-of-a-video-using-ffmpeg
	# https://stackoverflow.com/questions/37960828/webcam-streaming-from-mac-using-ffmpeg
	#
	# Selected pixel format (yuv420p) is not supported by the input device.
	#[avfoundation @ 0x7f961cd08b40] Supported pixel formats:
	#[avfoundation @ 0x7f961cd08b40] uyvy422
	#[avfoundation @ 0x7f961cd08b40] yuyv422