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.

How to Block Websites and Proxy Bypasses
By: Suminder Singh
March 9, 2017

Hello guys!This tutorial is intended for Network Engineers and Administrators on small computer networks.I'm back again with new tricks and tutorial. In this tutorial, I'm going to show you how to block a social website and adult website on your network. I know you have many techniques to block it, but there is more than one way ...

How to get Secure Coding Certified
By: Olivia
March 8, 2017

Hopefully the answer to the question, “How do I get _ certified?” is becoming clearer with each post I write. You may or may not have realized that the certification catalog is continuing to grow, with some of the newest certifications, SQL Injection and Cross-site Scripting, falling into the category of vulnerability specific certifications. ...

Role Technology: Healthcare
By: Rachel Laura M
March 8, 2017

When dealing with a health problem, gone are the days when we had to make many phone calls, ask a lot of questions and then wait for a doctor or other medical professional to follow up with us. Today, when it comes to managing our health, the Internet is our number#1 source of information. Consider this: in a 2004 ...

CIA Triad [Confidentiality, Integrity and Availability]
By: nirmalrijal
March 8, 2017

Confidentiality: Confidentiality means protecting sensitive information from disclosure to unauthorized parties which refer to providing the information to right user and protect from wrong user or hacker. Integrity: Integrity means the information is precise and solid and has not been quietly changed or messed with by an unknown or unapproved party.  ...

How to Create an Encrypted Container in Linux for Cloud Storage
By: NickTh
March 8, 2017

How to Create an Encrypted Container in Linux to Use on Cloud Storage Services Greetings Cybrarians.This is my first publication, and we will learn how to secure our content when we are using a third party service for Cloud Storage (i.e. Dropbox).We can use this technique for local encryption too.Of course, we have to know that the best solution ...

Harassment in IT: Are things any better 40 years later?
By: rcubed
March 7, 2017

Several high-profile sexual harassment cases in recent years serve as a reminder how far the tech industry has yet to advance with regard to the fair treatment of women in the workplace. Truth be told, it’s a pervasive problem in our culture that extends well beyond the IT field, however, the problem is particularly acute in IT due to ...

Critical Services' Vehicles Tracker Project: Fundamentals
By: Jawady Muhammad Habib
March 7, 2017

It has been a long period of time since I posted on 0P3N; however, "better late than never" as they say.So, here's another project concept that was taken from my projects' catalog which I want to share with you:  The Critical Services' Vehicles Real-time Tracker project or the CSVRT ...This document provides a deeper look into the project, digging more under the ...

Symmetric and Asymmetric Key Encryption: Forming a Mental Model
By: abrockwa
March 7, 2017

Symmetric and Asymmetric Key Encryption: Forming a Mental Model When being introduced to cryptography , an admittedly daunting subject, it’s best to start at the most common subjects first at a very high level and then go deeper once that view is understood; the nitty-gritty of the mathematics behind the crypto can wait. ...

The Art of First Impressions: How to Stand Out at a Career Fair and Land the Job
By: Olivia
March 6, 2017

For many students, the approaching of spring means one thing: A rush to attend every career fair and hiring event possible to land that job or internship post-graduation. For professionals, the attendance of career fairs may come on more of an ‘as needed’ basis. Still, it is important to remember the following tips to make your best first impression ...

Tutorial: TFTP using Python
By: Shubham Rathi
March 6, 2017

In this post, I'm going to share a short script which can be used to create you own TFTP server. You need to run the server.py on your server (it can be your local machine) and client.py on your client machine (i.e. your local machine). While both scripts are running, you can look at your server's files and download them. CODE: ...