by Satish Kumar | Jan 17, 2023 | Interview
Packet-filtering firewalls can be used to block unwanted traffic, such as malware or unauthorized access attempts, while allowing legitimate traffic to pass through. They are considered a first line of defense in a network security strategy.
by Satish Kumar | Jan 17, 2023 | Interview
A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules and policies. Firewalls can be implemented as hardware or software, or a combination of both, and are typically used to protect a...
by Satish Kumar | Jun 3, 2021 | Ubuntu
VirtualBox is an Open Source tool, known as a cross-platform virtualization application or software. It used to run multiple operating systems or virtual machines simultaneously on a single hardware. In this VirtualBox installation tutorial, we will explain the...
by Satish Kumar | Mar 11, 2021 | BASH
In this article, we are going to create a config file and use it in our shell script. Prerequisites Besides having a terminal open, you need basic knowledge of creating scripts and config files. Write script Now, we are going to create a script and config file. The...
by Satish Kumar | Mar 10, 2021 | BASH
In this article, we are going to learn how to calculate and reduce the script’s runtime. A simple time command will help in calculating the execution time. Prerequisites Besides having a terminal open, make sure you have the necessary scripts present in your system....
