Author: Supriyo Biswas

A Guide to SSH Port Forwarding/Tunnelling

SSH is a widely used protocol for system administration and file transfer. In addition, it has a feature called SSH tunnelling  (or SSH port forwarding). It creates an encrypted connection between a local computer...

Building a Spam Filter Using Machine Learning

Machine learning is everywhere. From self driving cars to face recognition on Facebook, it is machine learning behind the scenes that drives all of it. If you’ve ever used GMail or Yahoo Mail, you...

Customizing and coloring the bash prompt

If you’re already not familiar with bash, the prompt is the little blurb of text displayed when it asks for a command. It capable of communicating a lot, but most people don’t use it...

SSH bruteforce log

Protecting SSH with Fail2ban

SSH allows you to log in to a remote computer or server and control it through a command-line interface. However, because SSH is exposed to the internet; attackers can try to log in by...