Network Security
system security Linux network
system security Linux network The romanticized image of the digital nomad – a laptop on a sun-drenched balcony – rarely accounts for the actual friction of maintaining a professional development environment on the move. . The friction is amplified with Linux. We are looking for a setup that respects our kernel configurations, handles volatile network handovers, and maintains a strict security posture without the hand-holding of a consumer-grade OS – so, put simply, more than just a laptop and a sunny deck. The hardware is...
May 26, 2026
Server Securityopen-source Linux administration
open-source Linux administration Cron has existed in Unix and Linux environments for decades, handling backups, cleanup scripts, patching jobs, log rotation, monitoring tasks, and other maintenance work that administrators do not want to run manually. Most Linux servers rely on it constantly, which is exactly why attackers continue abusing it for persistence after a system has already been compromised. . Persistence through cron is not complicated. Attackers do not need a rootkit or advanced malware framework to maintain...
May 25, 2026
Vendors/Productssecurity breach linux
security breach linux A major internal repository breach at GitHub has exposed a critical and overlooked blind spot in Linux supply chain security. Kernel exploits, exposed SSH services, weak firewall rules, and vulnerable daemons dominated the Linux threat model for years, and in many environments, they still matter. But recent supply-chain incidents involving GitHub ecosystems, npm packages, and malicious developer tooling point somewhere else entirely: the developer workstation. . The breach matters because...
May 21, 2026
Security Trends access control multi-tenant
access control multi-tenant Linux administrators often face an ugly choice in the cloud: prioritize convenience and cost-efficiency by sharing infrastructure, or sacrifice those benefits for the sake of total isolation. Most modern Linux workloads don't live on their own private servers anymore. They live in shared environments like Kubernetes clusters, where multiple teams and services run side-by-side. It sounds efficient, and it usually is. . But cloud isolation isn't as ironclad as it looks on the diagram. If you...
May 21, 2026
Vendors/Productsincident response cloud security
incident response cloud security Managed Extended Detection and Response (MXDR) has become one of the most sought-after security services in the enterprise market — and with good reason. It promises the holy grail: broad visibility across endpoints, network, cloud, email, and identity, combined with the 24/7 human expertise most organizations simply cannot build in-house. . However, the rapid growth of the market has produced a wide range of providers whose capabilities vary considerably beneath the surface. Choosing the...
May 19, 2026
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system stabilitysystem performancesecurity enhancementsLinux 6.12 LTS Upgrade: Boost Security, Performance, and Stability
As a Linux security admin, staying abreast of the latest advancements in kernel development is critical to creating an efficient and safe system. With the Linux 6.12 LTS release bringing many performance gains and improved security features over its predecessor, 6.6 LTS, upgrading could significantly enhance system stability and efficiency. . Adopting a new kernel version should not be taken lightly; it requires extensive testing and careful planning to ensure compatibility and stability. This may involve validating it within a controlled environment, measuring performance improvements over time, and creating a backup/rollback plan. In this article, we'll look at the key advantages of the Linux 6.12 LTS kernel over its predecessor 6.6 LTS release and ways of seamlessly incorporating updates into your current infrastructure - so you can stay up-to-date and take full advantage of this latest release! Improved System Performance Linux 6.12 LTS stands out due to its improved system performance. Kernel updates often bring optimizations designed to boost overall efficiency. With 6.12 LTS versions, this includes memory management optimizations, CPU scheduling improvements, and simplified I/O operations. All of these enhancers work together to ensure your systems perform more efficiently under any workload condition. Consider scenarios in which high-performance computing is crucial, such as data centers or environments running virtual machines. Improved memory management can reduce latency and increase throughput for more responsive systems. Optimized CPU scheduling ensures processes receive CPU time more effectively to minimize wait times while improving multitasking capabilities. As a security admin, knowing these improvements lead to more robust and efficient processing can help deliver a better user experience while upholding all standards for safe operations. Enhanced Security Features Any new kernel release promises enhanced security, and Linux 6.12 LTS is no exception. Security isever-evolving, as new vulnerabilities are constantly discovered. Upgrading to LTS versions means you will receive patches for known vulnerabilities found in earlier releases, thus decreasing exploit potential and helping maintain a secure environment. Linux 6.12 LTS offers numerous security updates designed to fortify your system against various forms of attack, from kernel patches and fixes for access control mechanisms to improvements in module loading security. Operating with the most up-to-date kernel version helps ensure you remain ahead of potential security threats while giving you peace of mind knowing your systems are fortified with cutting-edge security innovations. Better Hardware Support Linux kernel developers strive to ensure the kernel can support various hardware. This is essential in an era when technological innovations keep revealing new components and capabilities. With Linux 6.12 LTS' extended hardware support, your systems will be able to take full advantage of emerging technologies. 6.12 LTS provides improved driver and kernel support for more modern CPUs, GPUs, storage devices, and networking cards, increasing performance and functionality. This is especially beneficial in data centers that rely heavily on cutting-edge hardware for resource-intensive applications. Better hardware support also means fewer compatibility issues, smoother operations, and fewer headaches when troubleshooting. Stability and Reliability One of the key draws of an LTS version is its promise of stability and reliability, which is ensured through extensive testing and long-term support. Linux 6.12 LTS continues this tradition by offering an unbreakably secure environment capable of handling production workloads reliably. Admins should upgrade to 6.12 LTS to take advantage of all bug fixes implemented since 6.6 LTS. These fixes not only increase overall system stability but also address specific issues that were disrupting earlier versions. In mission-critical environments, having anavailable and stable system is vital, and upgrading to an LTS version provides a secure, stable, and reliable way forward. Notable Performance Enhancements Linux 6.12 LTS offers numerous direct performance upgrades, from faster filesystem operations to improved networking performance. Such advancements include faster read/write operations for quicker and more efficient data access. At the same time, improved networking performance allows for increased throughput with reduced latency for applications that rely heavily on fast data transfers. As part of its process-handling capabilities, the new kernel includes optimizations in context switching, which is the ability of the CPU to switch between tasks efficiently. Efficient context switching ensures systems can manage multiple processes more effectively while decreasing overhead costs and increasing performance. Energy Efficiency Power management is often neglected when considering kernel performance, yet it plays an integral part in saving energy and prolonging hardware lifespan. Improving power management practices can result in more energy-efficient operations for data centers or large deployments where power costs represent a substantial cost factor. Linux 6.12 LTS includes updates designed to increase power efficiency, so your systems will consume less electricity while providing greater performance. You will save on costs and help reduce the environmental impacts of operations while prolonging hardware lifespan by minimizing heat production and wear and tear. Driver updates are an integral component of kernel improvement. They ensure the kernel can interact more efficiently with hardware components for improved performance and reduced compatibility issues. With Linux 6.12 LTS, you can expect updates for various hardware components. Updated network drivers lead to more stable and quicker network connections, while updated storage drivers result in quicker disk operations and increased reliability. As a security admin, having thelatest drivers ensures your systems are less likely to experience hardware-related issues, leading to smoother and more dependable operations. Planning Your Upgrade Due to all the advantages of Linux 6.12 LTS, careful consideration and planning must go into an upgrade process . First and foremost, you must test your new kernel in a controlled environment before rolling it out into production to identify any potential compatibility issues with existing software and hardware. Benchmarking is also an integral component of this process. By comparing the performance of both kernels, benchmarking enables you to gather evidence supporting upgrades based on tangible benefits rather than assumptions. Backup and rollback plans are essential safety nets when switching kernel versions. Before making significant modifications, ensure you have sufficient backup copies of your current system for restoration if upgrading goes wrong. If something unexpectedly breaks, having an efficient plan allows you to return quickly to an earlier stable state without delay, minimizing downtime or disruptions. Staying Up-to-Date The Linux community is ever-changing, so keeping abreast of new developments , patches, and potential issues is essential for making informed decisions. Checking official Linux Kernel mailing lists, release notes, and resources like LinuxSecurity.com regularly can provide invaluable insights that could prevent potential challenges ahead. Engaging with the community can also offer invaluable support and guidance. Experienced administrators often share their advice for common issues, offering invaluable assistance for troubleshooting and best practices. Our Final Thoughts on Achieving Peak Efficiency & Security with Linux 6.12 LTS Linux 6.12 LTS provides numerous performance and security benefits that make it an attractive upgrade from Linux 6.6 LTS, including improved system performance, increased security features, enhanced hardware support, and driver updates. Careful planning,thorough testing, and an effective backup strategy will ensure a smooth transition. By remaining informed and proactive throughout this transition process, you can fully capitalize on its potential and give your users a more robust, efficient, and secure environment. Are you planning to make the switch? Which updates or improvements are you most excited about? Let us know @lnxsec! . Examining Linux 6.12 LTS advancements, focusing on performance optimizations, security enhancements, and expanded support for improved reliability and robustness.. Linux kernel upgrade, Linux 6.12 LTS, system performance, security features, energy efficiency. . Brittany Day
Dec 30, 2024
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Security Projects
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security toolshardware supportActive DirectoryKali Linux 2024.4: Enhanced Tools for Active Directory Privilege Escalation
If you're an admin responsible for managing and securing one or more Linux systems, you already know the importance of having top-notch tools at your disposal. The latest Kali Linux 2024.4 release is designed with you in mind, bringing new features and enhancements to make your job easier and more efficient! . This release introduces a range of new tools like bloodyad for Active Directory privilege escalation and web-cache-vulnerability-scanner for probing web cache security, equipping you with the latest penetration testing capabilities. But that's not all—Kali NetHunter now includes Wifipumpkin3, replacing the old Mana toolkit, and comes with a handy new "Kernel" tab to streamline kernel updates directly from the app. Additionally, Kali Linux 2024.4 enhances compatibility across various devices and ARM systems, adding support for the Realme X7 Max 5G and expanded functionalities for Raspberry Pi models. These updates ensure you can deploy Kali in various environments, from the lab to real-world enterprise scenarios. Whether you're conducting detailed forensic analysis or broad vulnerability assessments , the latest Kali release provides robust tools and expanded hardware support to help you stay ahead of the latest, most sophisticated Linux security threats. In this article, we'll delve deep into what's new in this release, from cutting-edge tools to expanded hardware support, and how these updates can make your job more effective and convenient. New Tools to Elevate Your Penetration Testing One of the most exciting aspects of the Kali Linux 2024.4 release is the addition of 14 new tools specifically designed to improve your penetration testing kit . These tools cover a range of functionalities that are crucial for modern cybersecurity practices. For instance, bloodyad focuses on Active Directory (AD) privilege escalation, a critical area for many security admins who protect environments heavily reliant on AD. This tool can help you identify potential vulnerabilities andunauthorized access points in your AD setup, enabling you to fortify your network against threats. Another valuable addition is the openssl-ssh1 tool. Since some legacy systems still utilize the older SSH1 protocol, having a reliable and secure client for interaction becomes essential. Although upgrading any system using SSH1 is recommended due to its outdated security, having openssl-ssh1 in your toolkit ensures you can still securely manage those that haven't updated yet. Then there's the web-cache-vulnerability-scanner , which addresses the increasingly relevant issue of web cache poisoning. As web applications become more complex and integral to business operations, vulnerabilities in web caching mechanisms pose significant security risks. This tool allows you to scan and test these caches, helping you to mitigate potential exploits before malicious actors can leverage them. Kali NetHunter: Now More Powerful and User-Friendly The Kali NetHunter platform , an essential tool for mobile penetration testing, has seen significant updates in this release. One of the biggest changes is the replacement of the Mana toolkit with Wifipumpkin3. This new tool allows you to create a rogue access point (AP) that provides a real internet connection, even over mobile networks. This is a game-changer for conducting man-in-the-middle (MiTM) attacks and testing wireless security in environments where setting up a traditional rogue AP would be inconvenient. Additionally, the NetHunter app now includes a "Kernel" tab. This seemingly small addition can have a substantial impact on your workflow. It simplifies and speeds up the process of keeping your systems up-to-date by allowing you to flash the kernel directly from the app without needing to enter recovery mode. This ease of use ensures that even those new to NetHunter can manage kernels with much less hassle, while veterans will appreciate the time savings. Expanded Device and ARM Support for More Versatile Deployments One of the ongoing challengesin Linux security administration is ensuring compatibility across diverse devices and platforms, and Kali Linux 2024.4 makes significant strides in this area. This release expands support to 100 devices, including models like the Realme X7 Max 5G and Xiaomi Mi 9 Lite. This broadened support means you can deploy Kali Linux on an even wider array of devices, making it a versatile choice for various testing environments and scenarios. There are also noteworthy enhancements for those who rely on ARM systems. The Raspberry Pi series, already popular among security admins for its flexibility and affordability, sees improved support in this release. Notably, there is now support for the Raspberry Pi 500, further cementing this platform's utility in your toolkit. Even though the Raspberry Pi 500 support remains untested due to hardware constraints, it's clear that Kali Linux is continuing to broaden its ARM support to ensure full functionality across these widely used devices. The team has also enabled Kernel Mode Setting (KMS) for better graphics performance and switched character maps to UTF-8 to avoid console issues, ensuring a smoother and more reliable user experience. These updates enhance ARM builds' performance and ensure that you can deploy and run Kali Linux smoothly on less conventional hardware setups, which can be particularly useful in field operations or specific security assessments. Practical Applications of Kali Linux 2024.4 in Everyday Linux Security Work So, how do these enhancements translate to your daily work as a Linux security admin? Let's consider a few practical scenarios. Imagine you are conducting a security audit for a client with a complex web infrastructure. Adding the web-cache-vulnerability-scanner allows you to identify and mitigate web cache-related vulnerabilities proactively. Instead of reacting to breaches or potential exploitations, you can stay ahead of the curve, fortifying the cache mechanisms before they become a target. Similarly, deploying bloodyad can helpyou uncover security weaknesses that could be exploited for privilege escalation in environments where Active Directory is heavily utilized. With this tool, you can simulate potential attacks, understand their impact, and implement the necessary controls to safeguard against threats. On the mobile front, setting up a rogue AP with Wifipumpkin3 can help you test the resilience of your network against MiTM attacks without the need for a cumbersome setup. This simplifies mobile security assessments and makes them more realistic, using the devices that end users might have in their pockets. Our Final Thoughts on Staying Ahead with Kali Linux 2024.4 Updating your Linux security tools and tactics is not just beneficial—it's essential. The Kali Linux 2024.4 release provides a robust suite of new tools, significant updates to the Kali NetHunter platform, and expanded device and ARM support that collectively enhance your ability to conduct comprehensive security assessments and maintain a robust security posture. From identifying and mitigating web cache vulnerabilities to securely managing legacy systems and conducting effective MiTM attacks with new tools, this release offers practical enhancements that can elevate your security practices. By leveraging the latest updates in Kali Linux 2024.4, you'll be better equipped to navigate modern cybersecurity challenges and stay one step ahead of potential threats. . Explore Kali Linux 2024.4's features, including the innovative bloodyad tool for enhancing Active Directory security and improved hardware compatibility for diverse deployments. Kali Linux 2024.4, penetration testing tools, Active Directory security, NetHunter updates. . Brittany Day
Dec 18, 2024
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Vendors/Products
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security updatesecurity fixhardware supportOpenBSD 7.4 Security Update: New Hardware Support And Fixes
Theo de Raadt released OpenBSD 7.4 today as the open-source BSD operating system project's 55th release. . OpenBSD 7.4 features a wide variety of improvements from new kernel features to improved hardware support, security updates, AMD Zenbleed handling updates, and much more. Downloads and more details on the hundreds of changes with OpenBSD 7.4 via OpenBSD.org . The link for this article located at Phoronix is no longer available. . OpenBSD 7.4 unveils expanded hardware compatibility, critical security updates, and significant kernel optimizations for its users.. OpenBSD 7.4, Security Improvements, Hardware Enhancements. . LinuxSecurity.com Team
Oct 17, 2023
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Security Projects
79
hardware supportkernel upgradesystem enhancementsLinux Kernel 6.0 EOL: Urgent Upgrade To 6.1 For Performance And Security
The time has come to say goodbye to the Linux 6.0 kernel series as it’s now marked as EOL (End of Life) on the kernel.org website, which means that it will no longer be updated. . Linux kernel 6.0 was released about three months ago on October 2nd, 2022, with new features like support for NVMe in-band authentication, async buffered writes when using both XFS and io_uring, io_uring zero-copy network transmission support, or support for PCI buses in the OpenRISC and LoongArch architectures. It also brought improvements to the RISC-V and AArch64 (ARM64) hardware architectures, new and improved features for the Btrfs and OverlayFS filesystems, as well as new and updated drivers for top-notch hardware support. Unfortunately, Linux kernel 6.0 is a short-lived branch, not an LTS (Long-Term Support) one, which means that it’s only supported with maintenance updates for a few months. Today, Linux kernel 6.0 reached end of life with the 6.0.19 update, which is the last stable release in the series. GNU/Linux distribution maintainers and users who use the Linux 6.0 kernel series are now urged by kernel maintainers to upgrade to a newer release, such as Linux kernel 6.1 , which was also updated today to version 6.1.5 for those interested in upgrading their kernels. The link for this article located at 9 to 5 Linux is no longer available. . Linux kernel 6.0 has now reached its end of life. Ensure you upgrade to 6.1 for access to the newest features and vital security updates.. Linux Kernel Upgrade, EOL Kernel, System Performance, Hardware Support, Linux Security. . LinuxSecurity.com Team
Jan 13, 2023
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Security Projects
79
hardware supportopen source toolfirmware updateFwupd 1.8.6 New Hardware Support And 30% Smaller Package Size
Fwupd 1.8.6 is out as the newest stable release of this open-source firmware updating tool most notably used by Linux systems but also supported on various BSDs and even Windows. . New hardware support with Fwupd 1.8.6 includes supporting Focaltech touchpads, FPC fingerprint readers, and support for Supermicro servers running Redfish. This Supermicro support comes from Kai Michaelis with 9elements Security, sadly not from Supermicro itself, and limited in scope to updating the BIOS using the Redfish API. Fwupd 1.8.6 is also notable in that its install package size has been optimized and is now about 30% smaller than prior releases. This ~30% reduction comes via compressing some data files, building some plugins into the binary, and splitting out common code in tools. The link for this article located at Phoronix is no longer available. . Explore the latest in Fwupd 1.8.6, introducing enhanced device compatibility and achieving a 30% reduction in package size for streamlined updates.. Firmware Update, Hardware Support, Package Optimization. . LinuxSecurity.com Team
Oct 10, 2022
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Security Projects
215
hardware supportsystem enhancementsrelease announcementLinux Mint 21.1 Release Announcement With Hardware Enhancements
The new version will land around the 2022 holiday season with improved hardware support and USB stick creation. . Linux Mint users received a very early Christmas present in September 2022 when it was announced that Linux Mint 21.1, codenamed "Vera," would arrive around the 2022 holiday season. Linux Mint, a customized Ubuntu version will come with a raft of new features when it launches around Christmas 2022, according to a Linux Mint newsletter by team leader Clement Lefebvre. Lefebvre thanked the developers and donors to the project. It's not clear exactly which version 21.1 will be based on, but given that this is a point release, it will likely be based on Ubuntu 22.04 "Jammy Jellyfish" released earlier in 2022, since the existing Linux Mint 21 is based on that version. . Linux Mint 21.2 is set to deliver upgraded system compatibility and refined tools for creating bootable USB drives, as part of its holiday launch.. Linux Mint 21.1, Hardware Support Enhancements, USB Creation Improvements. . Brittany Day
Oct 09, 2022
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Desktop Security
79
kernelopen sourcehardware supportHighlights of Hardware Support and Enhancements in Linux 6.0
Linux 6.0 comes with many notable hardware support additions and other improvements, here is a reminder of all what is great about this imminent kernel release. . Back in mid-August after the Linux 6.0 merge window I wrote my usual Linux 6.0 feature list for those interested. For today's article is a recap of some of the most interesting changes, see that aforelinked article for the complete coverage of v6.0 changes. The link for this article located at Phoronix is no longer available. . The Linux 6.0 kernel is a major upgrade, offering better performance, efficiency, and hardware compatibility with advanced memory management and enhanced multitasking.. Kernel Features, Linux 6.0 Enhancements, Hardware Support Recap, System Upgrades, Software Improvements. . LinuxSecurity.com Team
Oct 05, 2022
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Security Projects
79
security updateshardware supportLinux kernelLinux Kernel 5.19 Released: New Hardware Support And Security Fixes
Linus Torvalds has announced the release and general availability of the Linux 5.19 kernel series as a major branch that brings more new features, improved hardware support, and lots of bug and security fixes. . After being in development for more than two months, Linux kernel 5.19 is finally here and introduces support for ZSTD-compressed firmware files, support for AMD’s Secure Nested Paging feature, a new user-space API for managing MultiPath TCP (MPTCP) flows, initial support for Loongson’s “LoongArch” RISC ISA CPU architecture, as well as support for the ARM Scalable Matrix Extension (SME). Also new support for supervisor-mode page-based memory types and the ability to run 32-bit binaries on 64-bit systems for RISC-V architectures, support for SMP coprocessors, KCSAN, and hibernation to the Xtensa architecture, a new generic ticket spinlock type to add support for full qspinlock implementation in various architectures like RISC-V, OpenRISC, and C-SKY, and a new FAN_MARK_EVICTABLE flag to the fanotify mechanism to avoid pinning the targeted inode in the inode cache. The link for this article located at 9 to 5 Linux is no longer available. . The release of Linux kernel 5.19 introduces enhanced hardware compatibility, improved API functionalities for MPTCP, along with multiple security enhancements.. Kernel Enhancements, Hardware Support, Linux Releases. . LinuxSecurity.com Team
Aug 03, 2022
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