Category Network

Network

Neural Network from scratch in Python

I recently published a post on Medium which goes through the math of machine learning all the way down to the code (in Python). If you understand the basic principles then you can implement any kind of layers you ever dreamt of (FullyConnected, Convolutional, MaxPooling, Dropout, etc). https://medium.com/@omaraflak/math-neural-network-from-scratch-in-python-d6da9f29ce65 You can also directly checkout the code on Github ! https://github.com/OmarAflak/Medium-Python-Neural-Network Cheers !

C/C++, Network

Neural Network from scratch: Part 2 – Practice

[latexpage] Welcome back! Now that we have our equations from part 1 we are going to implement them in C++ to make a hand written character recognition program ! Before we dive into the code we need to think just a second about the network architecture. As you will see further along the article, I…

Android, Network, Raspberry Pi, Server

Raspberry Pi & Omxplayer Server

If you're an Android user, you probably noticed that Android doesn't have its own "Airplay" implemented, which is not convenient if you want to stream your music on your speakers (or home cinema or whatever). So I decided to overcome this problem using my Raspberry Pi ! And today I will share with you my work so…

Network, Raspberry Pi, Server

Node.js script at startup

I've been searching a while how to run a Node.js program at the boot of my Raspberry Pi and only one technique worked for me. Moreover I found it very simple! forever and forever-service Basically, what you have to do is make your program a service and then run the service automatically at the startup. Install forever as global : Then install forever-service : the key program here! This is the github link: https://github.com/zapty/forever-service Then, you HAVE TO rename your program…

Android, Network, Server

Node.js and Android TCP/IP

After some research on the internet I noticed that a lot of tutorials for Node.js were about making a web server, but what about something more ... Android ? For this tutorial you will need Node.js installed on your server and an Android device. Let's go! Node.js multi-client server This little piece of code is only what you need! Some explanations: net.createServer() creates the server (no way) and takes as a parameter a callback function called every time a new client connects to the server. The client's socket is contained in sock. sock.write('Welcome…

Android, Hacking, Network, Server

Reverse SSH (Also on Android)

Hi everyone! This tutorial will show you how to make a Reverse SSH between two machines! I already wrote a post for making a Reverse Shell, you should take a quick look at it if you don't know what is a reverse shell, because the same principle is applicable here. Reverse SSH There will be two machines here: Reachable (the network configuration: port forwarding etc.. allows you to ssh to it from anywhere) Unreachable (machine with ssh installed, you can't access to it unless you're on the same network) Let's do it! You need to…

Hacking, Network, Server

Reverse Shell

Hello everyone! In this tutorial I'm going to show you how to make a reverse shell! You will need two machines. I'm using two Linux based systems. Reverse Shell First, what is a reverse shell ? Usually, when you make a TCP/IP connection between two computers, there is from one side a server handling the connection, and from the other a client making the connection. When you connect to your machine using SSH (for example), you (CLIENT) are controlling the distant machine (SERVER). Making a reverse shell allows the SERVER to control…

C/C++, Network

Socket Library C++ Windows

Hi everyone! This is another tutorial about Windows sockets, but this time with a library! If you read the other article, you probably noticed that it was a pretty complicated code for nothing big! I am doing this second tutorial to share with you a library I developed some days ago and which happened to be very usefull. Careful, this library was made for Windows only. Github First of all, go to the github repository, and download the project. You will…

Network, Raspberry Pi, Server

VPN PPTP – How it works + Install

Hi everyone! Today we are going to talk about VPNs! As usual I will explain with beautiful images what is a VPN and how it works (briefly), and then guide you step by step to the installation of a PPTP VPN on your server. Let's go! VPN: What is it? A VPN (Virtual Private Network) is a tunnel created between several distant computers, allowing them to comunicate as if they were on the same network. The second part of the sentence is…

Network

Socket, Server Client Java

Hi everyone! In this tutorial I will show you how to make a server client architecture program in Java. Before beginning, if you are not familiar with sockets and network, I advice you to take a look at the Network Basics. Everybody ready? Let's go! First you will need to create two seperate projects, the client and the server. Once it is done, we are going to code the server side. Server First the code, the explanations next: The program is not really complicated. The program will listen to incoming connections, then read…

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