Passwords should never be stored as plain text. Whether we are talking about a web application or an operating system, they should always be in hash form (on Linux, for example, hashed passwords are stored in the /etc/shadow file).
security
Introduction to Wake On Lan
Wake-on-lan (also known with the “W.O.L” acronym) is a standard ethernet feature which allows a machine to be woken up on the reception of a specific type of network packet (the so called MagicPacket). The main advantage of this feature is that it allows us to keep a machine in a low power consumption state, and be accessed only when needed.
How to reset Kali Linux root password
It’s possible to reset Kali Linux password in the event that you are no longer able to login to the root user account. This happens if you haven’t logged in for a while and have since forgot Kali Linux password.
Hardening Kali Linux
Although Kali Linux is notorious for being the distro of choice for penetration testers, hackers, and cyber security experts, it doesn’t mean that the operating system is not also vulnerable to exploits.
How to connect to VirtualBox via SSH
After installing a Linux distribution in Oracle VirtualBox, you may be wondering how you can SSH from the host operating system into the virtual machine. After all, SSH is a great way to access and manage the system on command line.
Install SSH server Ubuntu 22.04
SSH is the primary method of remote access and administration on Ubuntu 22.04 Jammy Jellyfish and other Linux systems. SSH is a client-server service providing secure, encrypted connections over a network connection. After installing Ubuntu 22.04, it may be one of the first things you want to configure.
How to change to root user in Ubuntu 22.04
After installing Ubuntu 22.04, you will inevitably be logging into the root account, or using administrator privileges, quite frequently. That’s because installing or removing software, as well as configuring system settings, requires the use of the root account or sudo command.
How to perform Debian chroot installation
In this tutorial we will deal specifically with Debian Chroot environment. Running a Linux system inside a chroot environment allows a system administrator to decrease the impact on a production server when the server gets compromised.
Find setuid binaries to perform Linux server hardening
The purpose of this tutorial is to find setuid binaries on Linux. It is very possible that your Linux server has more packages installed than you really need. To make it worse, those extra packages may contain a handful of binaries with setuid and setguid turned on.
Redhat Disable Firewall – start, stop, enable, disable
firewalld is the default firewall on Red Hat Enterprise Linux, and it’s enabled by default, but it’s possible to Redhat disable firewall, and you’ll also see how to check firewall status in Linux. Normally, there should not be a need to disable the firewall, but it may be quite handy for testing purposes or other scenarios.
How to open http port 80 in Redhat Linux using firewall-cmd
This article will provide you with an information on how to open port in Redhat Linux, and more specifically we will be talking about the HTTP port 80. firewalld is the default firewall program that comes pre-installed on Red Hat Enterprise Linux 7 and 8. By default, the firewall is turned on, meaning that a very limited number of services are able to receive incoming traffic.