0P3N Blog
Cybrary’s Open Blog is a user contributed cybersecurity knowledge base that brings together content highlighting the latest tools, exploits, technologies and insights in the industry.


SSL stands for secure socket layer. The SSL certificate is used to create an encrypted connection between user/browser and the server. So, let’s start from very basic. When you type Google in your browser, your browser sends this request to DNS server and DNS ...


Data with the ZIP record extension is a ZIP Compressed file and is the most favored archive format you'll run into.A ZIP file, like other archive file formats, is simply a collection of one or more documents and/or folders but is compressed into an one file for easy transportation and compression.The most common use for ZIP files is made ...


Nowadays, there are a number of email client applications available to manage and organize the information in the digital industry. Every email client saves their data into the different file formats. But, there are some applications that used to save the data into EML file format. Some of the EML supportive applications are ...


Hey Everyone,I am creating a series of the insides of Juliar in order to educate you guys in better understanding Juliar and hopefully converting you to firm believers of it :)In this first tutorial in the series, we will explore the use of recurrence in order to speed up Juliar.So let's look at a basic built in ...


#vulnerability Hate it when someone tries to read your messages over your shoulder? So do we. A new discovery by researchers from Ruhr-Universität Bochum (RUB) in Germany found that an outsider may be able to secretly eavesdrop on your 'private,' encrypted group chats through WhatsApp and Signal messaging apps. As a reminder, WhatsApp and ...


This is beginner level post for learning how to hack less secured password of login page. For this I am going to use some router for cracking the password and of course Hydra to brute forceit. What you need Kali Linux ( or any Linux distribution ...


Hey Everyone,Happy New Year! We've been hard at work working on both Juliar.Future and Juliar BLUE that we decided to merge the two projects into one.The new Juliar inherits the new clean editor from Juliar BLUE. This means that Juliar doesn't depend on JavaFX anymore to run GUI. Instead, Juliar now uses browser to render the interface. ...


Ever wanted to manage a chunk of internet traffic? Whether you are learning to use network management tools or doing something more nefarious, having a test bed of traffic is an important tool. Follow this tutorial and you'll be the boss of more traffic than you can handle. I'm showing you how to create an open internet proxy with Squid. ...


Like many of you, the Cybrary team is excited for the New Year ahead. A new year means new learning goals and a renewed sense of motivation to better yourself and your career. We’ll be the first to say, we’re excited about all the things we can achieve together, and we’re certain that Cybrarians are going to ...


System Information uptime = Show how long the system has been running. hostname = Shows system host name. hostname -I = Shows IP address of the host. date = Show current date and time. whoami = Who you are logged in ...