What if you could block connections to your network in real-time from countries around the world such as Russia, China and Brazil where the majority of cyberattacks originate? What if you could redirect connections to a single network based on their origin? As you can imagine, being able to control these things would reduce the number of attack vectors on your network, improving its security. You may be surprised that this is not only possible, but straightforward and easy, by implementing geographic filtering on your nftables firewall with Geolocation for nftables.
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CrowdSec is a massively multiplayer firewall designed to protect Linux servers, services, containers, or virtual machines exposed on the Internet with a server-side agent. It was inspired by Fail2Ban and aims to be a modernized, collaborative version of that intrusion-prevention tool.
When setting up and testing network security websites or systems, it is critical to ensure they work correctly and do not have cybersecurity vulnerabilities that malicious hackers could exploit. The best way to improve and guarantee data and network security while preventing attacks is by continuously testing the system for potential flaws. Pentesting is an incredibly helpful tool that can be utilized to protect your company. This article will introduce Linux pentesting and its benefits, explain the basic methodology, and explore some excellent network security toolkits available to Linux users.
For many years, Windows users were the only ones at risk of facing malware network security threats; however, cybercriminals have come to view Linux as a viable target for their attacks due to the growing popularity of the open-source OS and the plethora of high-value devices it powers. During 2019 and 2020, dangerous Linux malware variants like CloudSnooper, EvilGnome, and HiddenWasp emerged, and the number of malware strains continued to grow over time as Linux malware operators harbored great success with their malicious malware and phishing campaigns. Thus, taking proactive measures to secure your Linux systems against attacks has never been more critical.
As 2020 comes to an end, cyber risk has reached an all-time high, and intrusion detection has never been more essential in securing networks and preventing attacks and breaches. Cyber criminals’ methods, tactics and techniques are evolving to become increasingly stealthy and sophisticated, and more organizations than ever are turning to AI-based intrusion detection systems to beef up their security defenses, outsmart the “bad guys” and protect their critical servers, systems and data.
VPN technology has become a critical part of our digital lives, serving a variety of purposes including securing wireless connections, resolving geographical limitations, reaching prohibited websites and protecting the privacy of sensitive data. However, the unfortunate reality is that many of the VPN protocols on the market today are comlex, slow, unstable and insecure. Luckily, the new, innovative Wireguard protocol has demonstrated significant promise in all of these areas - and has earned a place in the mainline Linux kernel as a result. This article will briefly explore VPN protocols and potential concerns when implementing a VPN, and will dive deeper into the unique benefits that Wireguard offers users.
RavenDB is at the forefront of data management innovation - leveraging open-source development and an intense focus on usability to offer efficient, versatile and highly secure database services to business application developers worldwide. The latest release of the open-source NoSQL document database, RavenDB 5.0, accommodates both local and hosted environments, and adds time series support and document compression to its robust feature set.
Information leakage is a serious threat to the security of a Linux server, and can result in a host of severe consequences including significant downtime and the compromise of sensitive data. Luckily, server administrators can mitigate the risk of information leakage through a series of configuration changes.
When it comes to using a NoSQL document database to store, manage and retrieve documents, reliability, privacy, efficiency and ease-of-use are essential in optimizing productivity and ensuring data security. However, the unfortunate reality is that many NoSQL document databases fail to embody these important characteristics, leaving users frustrated - and often at risk.
Patch management can be a complex and time-consuming process, and because of this, patches to fix vulnerabilities may not be applied before a hacker is able to breach an organization's security. The majority of organizations are not aware of these vulnerabilities until they have experienced a breach, at which point it is frustrating to learn that deploying a simple patch could have prevented the breach altogether.
Over the next couple of weeks and months, LinuxSecurity editors and contributors will be writing a series on Linux Web Server Security. This week, we’re summarizing the risks Linux administrators face when trying to secure their systems, as well as outlining the first steps that should be taken toward ensuring that your systems are secure. This series will dive deeper into topics including preventing information leakage, firewall considerations, protecting file and directory permissions, securely running PHP applications, monitoring logs and how to verify the security of a Linux server.
Are your Linux servers secure? No machine connected to the internet is 100% secure, of course. In the words of security guru Bruce Schneier: “Security is a process, not a product.” However, this doesn't mean that you are helpless. Although cyber attacks, hacks and breaches are sometimes unavoidable, all system administrators and users can take definitive measures to mitigate their risk online.
The Internet of Things (IoT) is rapidly growing, connecting more devices each day. It is projected that by 2025, the world will have an astounding 64 billion IoT devices.
With hundreds of thousands of open-source projects underway, it’s easy to say that open source has become a standard in software development. And when talking about open source, the first development environment that comes to mind is, of course, Linux. Halfway through 2020, around 50% of software developers say they use the Linux operating system (OS) for their projects.