How to learn tips and tricks
Find the HOWTO or step-by-step guide that you need right here.
Find the HOWTO or step-by-step guide that you need right here.
System security is a crucial aspect of Linux administration. Securing every aspect of the system can be difficult as soon as we have several software packages, user accounts, and settings. It is, therefore, important to use a script like Lynis to check for potential security flaws and attack surfaces.
Linux systems log a great deal of information. Each system service you install has its own log or logs, not just those generated by dmesg or the boot log. It is not uncommon to find thousands of entries in these files over a short period of time.
The tutorial linked below will walk you through the basic commands of sudo. The sudo command allows a user to run a command either as the superuser or as another user. This is determined by the security policies in the sudoers files.
Raspberry Pi has announced the beta release of Raspberry Pi Connect as "a secure and easy-to-use way to access your Raspberry Pi remotely, from anywhere on the planet, using just a web browser."
Linux system security is essential in today's digital world, where cyber threats are becoming more sophisticated. Security auditing is crucial in identifying and mitigating vulnerabilities, protecting sensitive data, and maintaining regulatory compliance.
Extended Berkeley Packet Filter (eBPF) maps are a sophisticated interface that allows atomic updates to shared memory segments. These segments act as shared memory and provide a robust interface for eBPF program configuration.
Ubuntu 24.04 brings many updates, including Linux kernel 6.8, various toolchain improvements, enhanced security, and new management tools.
Ubuntu 24.04, "Noble Numbat," was released on April 25. It is Ubuntu's 10th LTS release and contains several performance and security improvements. Ubuntu 23.10, "Mantic Minotaur," released on October 20, 2023, will receive security updates until July 2024. There's still no reason why you shouldn't upgrade to 24.04 now.
XRDP is an open-source RDP implementation that we use to enable Remote Desktop Protocol on Linux. Managing XRDP remote desktop sessions in Linux can be difficult if you're not familiar with the process.
Docker is a popular container runtime engine due to its simplicity. However, Red Hat changed its support for Docker, causing users to switch to Podman.
Securing the Linux kernel in embedded systems is critically important, as these systems are widely used in various industries, ranging from IoT devices and industrial control systems to automotive and medical devices. Neglecting the security of the Linux kernel can have severe consequences, leading to potential breaches and exploits.
Microsoft has announced that Offline Security Intelligence Update is now in Public Preview. According to Microsoft, "Organizations can now update security intelligence (also referred to as “signatures”) on Linux endpoints with limited or no exposure to the internet using a local hosting server. Exercise better control over the download and deployment of signatures on their Linux servers running critical workloads."
"The life of an admin doesn't have to be dry. For example, when a user enters a wrong password, why not respond with a message that says, 'You're fired!' With sudo insults, you can."
"You don't always need third-party software to control multiple Linux servers — not when a bit of scripting magic can get the job done."
Linux offers several tools and techniques to users that enable them to search systems for information on hardware and firmware. This information does not validate a supply chain.
The Internet of Things (IoT) has changed the way people interact with the world. It connects a wide range of devices, from smart thermostats at home to industrial sensors used in manufacturing plants. Many IoT products use Linux due to its robustness, flexibility, and open-source nature.
Linux SSH servers are a favorite target among cyber attackers due to their ability to provide remote command-line access. This ability positions them as essential conduits for controlling and managing server operations.
SSH is essential for Linux users, allowing them to log into remote servers and desktops for various admin tasks. Although SSH is notably more secure than what it replaced (Telnet), it doesn't guarantee security.
Shell scripts are an integral part of Linux but can often require passwords that shouldn't be hard-coded for security reasons. Instead, sshpass is a non-interactive tool specifically created for password automation in shell scripts. Here's how to install and use sshpass on Ubuntu-based and Fedora-based distributions to put a password in your Bash script.
You will most likely use a Secure Shell (SSH). to perform remote work with Linux servers or containers. Although the name of the software includes "secure," you shouldn't assume it is locked down by default. It's certainly more secure than telnet, but you still need to do extra to ensure your data and systems are safe.