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Exim is one of Unix-like systems' most widely used mail transfer agents. It's essential for email delivery and handling and is a significant part of the Internet email infrastructure.

As cyber threats rapidly advance, Linux administrators and InfoSec professionals are essential defenders against increasingly sophisticated threats. Protectors of critical infrastructure and sensitive data, these experts must implement a wide array of security practices designed specifically to their unique challenges.

Computer systems, software, applications, and other interfaces are vulnerable to network security threats. Failure to find these cybersecurity vulnerabilities can lead to the downfall of a company. Therefore, businesses must utilize vulnerability scanners regularly within their systems and servers to identify existing loopholes and weaknesses that can be resolved through security patching.

NethSecurity is a Linux firewall that has been gaining traction in the open-source Linux space. Its proactive approach to network management and security has set it apart.

Google has released fixes for a high-severity Chromium security flaw ( CVE-2024-5274 ) impacting its widely used Chrome browser and other Chromium-based browsers such as Microsoft Edge, Brave, Opera, and Vivaldi. CISA has added this Type Confusion bug, exploited in the wild, to its Known Exploited Vulnerability Catalog . CISA has stated, "These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.", underscoring the significance of this flaw for impacted organizations.

The Cybersecurity and Infrastructure Security Agency (CISA) recently added a new Linux kernel privilege escalation bug ( CVE-2024-1086 ) to its Known Exploited Vulnerabilities (KEV) catalog . This bug is being actively exploited in the wild, and federal organizations have been given a deadline of June 20th to patch it, suggesting that private organizations follow suit.

Security professionals and system administrators face growing cyber threats in today's digital environment, making defending systems increasingly challenging. A recent discovery by Phylum revealed a sophisticated large-scale operation targeting Node Package Manager (npm) , GitHub repositories, and Content Delivery Networks (CDNs) via trojanized versions of the jQuery JavaSecript library .

Recently, open-source security was rocked by the discovery of an alarming Remote Code Execution (RCE) vulnerability within the Ghostscript document conversion toolkit '' CVE-2024729510 . This security breach poses a severe threat and can compromise countless Linux systems worldwide. To help you understand and protect against this threat, I'll walk you through how this flaw works, its impact, and practical strategies for mitigating your risk.

Cybersecurity has always been dynamic, and threats are evolving rapidly. One of the latest entrants into this dangerous arena is Eldorado, a ransomware-as-a-service (RaaS) that targets Windows and Linux systems. As revealed by Group-IB's recent discovery , this new ransomware has been making waves since it was first discovered in March 2024.

An aggressive cyber threat targeting HTTP File Server (HFS) users has emerged recently. A Remote Code Execution (RCE) vulnerability known as CVE-2024-23692 , first disclosed in May 2024, has been exploited by hackers worldwide to install malware onto systems and gain unwarranted control over them.

At a time of rapid technological progress, the security of our digital tools - particularly WiFi routers - has become critical. Recent news from ASUS sent shockwaves through the cybersecurity community when multiple models of their routers were found with critical flaws that exposed an ongoing challenge of protecting networks against intrusions.

Cybersecurity threats are becoming more imminent daily in today's fast-paced digital landscape. In 2023, there were 2365 cybersecurity attacks, an increase of 72% from 2021. These attacks are also becoming more sophisticated daily, making traditional security measures inadequate.

Security threats continue developing rapidly, with attackers finding new vulnerabilities daily. Recent findings from researchers at Uptycs indicate a shift in ransomware attacks targeting Linux servers, possibly due to their increasing prevalence in critical infrastructure and enterprise operations, making them attractive targets for ransomware groups.

On Independence Day, there is a deep recognition of digital autonomy amidst the colorful fireworks displays and patriotic revelry. At LinuxSecurity, we advocate switching from Windows to Linux as a symbolic act with deeper roots in terms of freedom, security, and privacy embodied by Linux.

Linux Mint is a user-friendly GNU/Linux desktop distribution built upon Ubuntu and Debian for maximum reliability while offering an aesthetically pleasing user experience. It stands out from other Linux distributions due to its ease of use, full multimedia support, and impressive security, making it perfect for personal and professional computing use.

In an era where cybersecurity threats loom larger than ever, the discovery of a Remote Code Execution (RCE) vulnerability in OpenSSH by Qualys' Threat Research Unit (TRU) demands the open source community's immediate attention. Dubbed as "regreSSHion" and assigned the identifier CVE-2024-6387 , this vulnerability stands out not merely because of its potential to enable unauthenticated, remote attackers to execute arbitrary code as root, but also due to its broad impact, affecting millions of OpenSSH server instances globally.

Debian recently unveiled a significant update to its stable distribution, Debian 12.6 (codename "bookworm"). While not an entirely new release, this upgrade brings important security fixes and fixes for severe problems to ensure an improved, secure operating environment for its users.

Linux proxy servers are essential for individuals and organizations looking to enhance their online privacy, data, network security, and browsing experience. In this comprehensive article, we will explore the concept of proxy servers, discuss the advantages of using a Linux proxy server, dive into the risks associated with their usage, highlight Squid as an efficient and user-friendly Linux proxy server, and provide step-by-step instructions on how to set up the HTTP Linux proxy.

The US government reported the OPM Breach, one of the country's greatest hacks, in 2015. Over 22 million past and present employees' personnel records were compromised by hackers believed to be based in China. According to experts, the consequences of such a large-scale breach may persist for almost 40 years.

Canonical has made headlines with its groundbreaking long-term support (LTS) service offering to extend far beyond Ubuntu deb packages, promising 12 years of security maintenance for any open-source application or dependency. "Everything LTS means CVE maintenance for your entire open MacOSource dependency tree, including open source not yet packaged as a deb in Ubuntu," announced Mark Shuttleworth, CEO of Canonical, emphasizing its far-reaching benefits.