FreeBSD related topics like how-to guides, troubleshooting etc. will be covered here.
FreeBSD Jail is nothing but OS-level virtualization that allows partitioning a system into several independent mini-systems. These mini-systems are called Jails, a jail could be a complete jail that resembles the whole system or a service jail that is created for specific services such as web server, database server, etc. The process of building jails … Read more
A firewall is a network security system that monitors incoming and outgoing network traffic flows through a system. It allows or blocks the data packets based on a set of security rules that are predefined in the system. It acts as a barrier between internal and external sources such as the internet and blocks malicious … Read more
The computer clocks are not perfect they are prone to drift that means over the time system clock starts lagging from the actual time. There are many network services that require the correct time on a local system. So the Network Time Protocol (NTP) provides a way to maintain the accuracy of a system clock. … Read more
One-time Password In Everything(OPIE) is a security feature in FreeBSD that prevent a system from replay attack. In a replay attack, an attacker discovers the password of a user and use it to access the system. Since a password used only once in OPIE so discovered password is of little use to an attacker. In … Read more
FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution. It is used to power modern servers, desktops, and embedded platforms. Securing a system running FreeBSD is important because it can have important data stored on it. In a bigger organization where many users can have access to a system, it is … Read more
The hostname is the name given to a computer so that it could be identified uniquely when connected to a network. The installer asks and setup the hostname while installing FreeBSD in a system. Sometimes you may want to change the hostname after installing FreeBSD operating system to somewhat relevant to the service running on … Read more
In a Unix like operating system, a service is a computer program or an application that runs in the background and performs some essential tasks. It does not provide any interface to interact with the system. The services are also known as daemons. Generally, the name of daemons ends with the letter d. For example- … Read more
Bash is a modern and one of the most widely used shells in Unix like operating systems. It is the sh compatible shell that can run sh scripts without any modifications. Bash auto-completion or tab completion is a feature in which user types a few words and shell suggests the whole command you can press … Read more
In Unix like operating systems, a shell is a program that interprets the command, executes, takes input(s), and prints output(s) on the terminal. FreeBSD uses tcsh as the default root shell and sh as the default user shell. For the purpose of bash scripting, you might need it in FreeBSD. So this article describes how … Read more
In FreeBSD, a shell is a program that interprets the command, executes, takes input(s), and prints output(s) on the terminal. A shell acts as an intermediary between user and kernel. FreeBSD uses tcsh as the default root shell and sh as the default user shell. Fish is a feature-rich, smart, and user-friendly shell. This article … Read more
