NanoDano's blog

Creating self-signed SSL certificates with OpenSSL

This tutorial will walk through the process of creating your own self-signed certificate. You can use this to secure network communication using the SSL/TLS protocol. For example, to run an HTTPS server. If you don't need self-signed certificates and want trusted signed certificates, check out my LetsEncrypt SSL Tutorial for a walkthrough of how to get free signed certificates.

Install gcc compiler on Windows with MSYS2 for C/C++

There are a variety of toolchains you can install on Windows for compiling C and C++ applications. Microsoft provides Visual Studio Community for free, and is a great IDE and toolchain. If you are developing exclusively for Windows, that is the tool I would recommend. For those who need or prefer the cross-platform GNU toolchain, you can install it using MSYS2. We will cover how to install gcc using MSYS2.

Web Scraping with Go

Web scraping (Wikipedia entry) is a handy tool to have in your arsenal. It can be useful in a variety of situations, like when a website does not provide an API, or you need to parse and extract web content programmatically. This tutorial walks through using the standard library to perform a variety of tasks like making requests, changing headers, setting cookies, using regular expressions, and parsing URLs. It also covers the basics of the goquery package (a jQuery like tool) to scrape information from an HTML web page on the internet.

If you need to reverse engineering a web application based on the network traffic, it may also be helpful to learn how to do packet capture, injection, and analysis with Gopacket.

If you are downloading and storing content from a site you scrape, you may be interested in working with files in Go.