Introduction Designing a mobile app today goes far beyond building a beautiful interface. Native apps — whether for iOS or Android — need secure authentication, user role management, real-time communication with the backend, and scalable infrastructure to support growth. In this post, I’ll walk you through a clean and modern architecture to connect native mobile apps to a robust backend on AWS. The architecture is modular, scalable, and aligned with best practices for security and performance — without relying on overly complex tools. Why it matters: apps today are more than just UI A production-grade mobile app often includes: User login (email, Google, or others), Differentiated access for multiple roles (e.g., user vs admin), Secure token-based communication, A backend capable of handling business logic and data, Data storage, asset management, and scalable APIs, Compliance with Google Play and App Store requirements. All of these require a backend architecture ...
Sometimes, we want to know how many devices are connected to our network. With any Unix OS you get easily know this. For this small tutorial we´re going to use Lubuntu 16.04. We will use nmap. Nmap (Network Mapper) is a security scanner. It is used to discover hosts and services on a computer network. For installing it, we first do sudo apt-get install nmap If we just need to identify the host names sudo nmap -sL 192.168.0.1/24 The result of this command will be Starting Nmap 7.01 ( https://nmap.org ) at 2016-10-02 12:39 CST Nmap scan report for 192.168.0.0 Nmap scan report for 192.168.0.1 Nmap scan report for 192.168.0.2 Nmap scan report for 192.168.0.3 Nmap scan report for 192.168.0.4 Nmap scan report for 192.168.0.5 If we need to know the OS of the devices we have connected we do a: sudo nmap -O 192.168.0.1/24 The address 192.188.0.1 depends of your network, you should do a ifconfig for knowing yours. The result of this command will be something l...