Let's Encrypt is "a free, automated, and open Certificate Authority." They provide free signed certificates as a trusted certificate authority. This tutorial walks through the process of installing certbot and requesting new certificates and renewing existing ones wit Let's Encrypt. If you are just looking to generate your own quick self-signed certificates, check out my tutorial on 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.
In this tutorial we will walk through the process of installing the Java 1.8 and Java 9 JDKs in Windows for Java development. When we're done, we'll have both JDKs installed, with one of them set up as our default leaving us with a Java development environment ready to compile and run applications.
Check out Security with Go, a book I recently wrote, available from Packt Publishing. It covers secure development, red team and blue team topics and is useful for developers and infosec professionals like analysts, investigators, engineers, and pentesters. It's a great book if you want to get to know Go better or if you want to start using Go for security.
Learn how to set up Tor proxy and hidden services in Linux.
Learn how to read and write CSV spreadsheets as well as Microsoft XLSX format using openpyxl. XLSX format lets you resize columns, add images, and use formulas to perform calculations.
Learn to work with binary data in Python 3.
These practical examples will demonstrate how to work with files including: reading, writing, changing permissions and timestamps, archiving(zipping), compressing, checksum hashing, downloading files over HTTP, buffers, scanners, and links. All examples here use the standard library.
The gopacket package provides a Go wrapper for libpcap written in C. It is more than just a simple wrapper though. It provides additional functionality and takes advantage of Go things like interfaces, which makes it incredibly powerful.