Metadata is basically data about data. Think about it as information that describes a file and provides a deeper understanding of the data you are looking at.
It can be used to index multiple files in a database collection or … Read more
If you are traveling somewhere and want to find out how the weather will be but can’t get your head out of your Linux terminal, if you want to know the forecast for your location, the current temperature, or just … Read more
In this tutorial, you will learn the basics of reverse shells and how to setup one on your Linux machine, and then we’ll discuss ways to prevent it.
This guide requires you to understand the basic networking client-server model where … Read more
With the advancement in technology and the current pandemic situation, the world has shifted to remote work on a large scale. Cybercriminals have become more active and come with more sophisticated ways to attack. The security risk at many organizations … Read more
Port scanning is the act of scanning a network or hosts in order to determine which network ports are open and thus which service they provide.
While the web (also known as the World Wide Web) is the most used … Read more
Say you want to send an important file, how do you ensure that the receiver will get the exact file without any changes ?
Well, the most common approach is use hashing, which translates the file information into fixed sized … Read more
Address resolution protocol (ARP) is one the simplest network protocols. It simply maps IP to physical addresses. When used with Ethernet, IP are mapped to MAC addresses.
Though simple, it is very important for interconnection hosts in … Read more
A regular expression is a sequence of characters defining a search pattern. It is one of the most powerful tools when it comes to mass text data filtering and modification.
Regular expressions often scares the newcomers but even with a … Read more