Rambling Ideas

Personal Infrastructure

Free SSL: Using "Let's Encrypt" for TLS certificates in your website

Quick and easy way of setting up Let's Encrypt to generate certificates for a site hosted by nginx.

Personal Infrastructure

Setting up a VPN gateway in Ubuntu using LXC containers and OpenVPN

Simple how-to for setting up a VPN gateway using LXC containers. Also covering the setup of a killswitch and a SOCKS5 proxy

Software Engineering

How to set up your own MongoDB sharded cluster for development in one host

Steps required to set up a MongoDB shared cluster environment in a single host in Linux.

Software Engineering

Validating a SSL certificate in Python

A way to perform SSL certificate validation in Python using PyOpenSSL and is multiplatform.

Programming Competitions

Project Euler Problem 182 - Solved

Solution to ProjectEuler's problem 182 in Python using a straight-forward approach together with public key cryptography properties.

Programming Competitions

Project Euler Problem 142 - Solved

Solution to ProjectEuler's problem 142 in Python by expression manipulation and brute-force.

Programming Competitions

Project Euler Problem 129 - Solved

Solution to ProjectEuler's problem 129 in Python using an efficient way to represent a repunit and modular exponentiation.

Programming Competitions

Project Euler Problem 132 - Solved

Solution to ProjectEuler's problem 132 in Python using an efficient way to represent a repunit and modular exponentiation.

Programming Competitions

CodeJam 2009 - Qualification Round - (B)Watersheds - Solution

Solution to CodeJam's 2009 Qualification Round problem B in Python using a straight forward approach.

Programming Competitions

CodeJam 2009 - Qualification Round - (A)Alien Language - Solution

Solution to CodeJams's 2009 Qualification round problem A in Python using a straight forward approach.

Programming Competitions

CodeJam 2010 - Round 1A - (A)Rotate - Solution

Solution to CodeJam's 2010 Round 1A problem A in Python using a straight forward approach.

Programming Competitions

Project Euler Problem 323 - Solved

Solution to ProjectEuler's problem 323 in Python using a dynamic programming implemented through memoization.

Programming Competitions

Project Euler Problem 158 - Solved

Solution to ProjectEuler's problem 158 in Python using dynamic programming implemented through memoization.

Personal Infrastructure

Using gnome keyring in xmonad

How to set up the environment so as to have the Gnome keyring available when usig Xmonad as the window manager.

Programming Competitions

Project Euler Problem 329 - Solved

Solution to ProjectEuler's problem 329 in Python using dynamic programming implemented through memoization.

Programming Competitions

Project Euler Problem 186 - Solved

Solution to ProjectEuler's problem 186 in Python using a generator function and efficient group inclusion search

Programming Competitions

Project Euler Problem 139 - Solved

Solution to ProjectEuler's problem 139 in Python using an efficient way to generate Pythagorean triplets.

Programming Competitions

Project Euler Problem 75 - Solved

Solution to ProjectEuler's problem 75 in Python using an efficient way to generate Pythagorean triplets.

Programming Competitions

Project Euler Problem 303 - Solved

Solution to ProjectEuler's problem 303 in Python using a straight forward approach.

Programming Competitions

Project Euler Problem 124 - Solved

Solution to ProjectEuler's problem 124 in Python using a straight forward approach.