Tech

Secure your web app with free and valid SSL (Nginx, Ubuntu, Let’s Encrypt)

HTTPS is now the standard. If you are an online service provider, getting an SSL certificate for your web app is a no-brainer. If you want your users to trust you, you need to get yourself one of those. Even otherwise, to secure the data you hold, it is important to provide the basic security that the HTTPS protocol provides. If you are not sure what it is, you can check out this Wikipedia page. This is a technical topic, and if you are coming here to learn how to secure your web app with an SSL certificate, it is better if you know your way around a computer and your cloud machine (you'll be doing everything in a terminal window, so knowing how to use one is important as well). Ideally, you need to buy an SSL certificate from the very many providers out there. You can actually create y

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Tech

A few basic (but powerful) ImageMagick commands

If you’re not sure what ImageMagick is, it’s one of the greatest tools you could have on your computer, to manipulate images and a few other types of files. In this post, I’m going to list out a few of the commands which come in very handy in a variety of situations. Recently I got the opportunity to work on a project where a lot of images had to be manipulated — changing the resolution and keeping the file size in check. I wrote the script in PHP and ImageMagick was the weapon of choice. Before you read any further, if you are not aware of ImageMagick and the features it offers, go through their website first. Also, I’d like to point out that this is more for personal reference, so that after a few months when I forget the commands or need to manipulate more images, I can come back ...

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