Best Firewall Software for Linux of 2024

Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines the most advanced threat-hunting technologies in existence: Heimdal Next-Gen Antivirus, Heimdal Privileged Access Management, Heimdal Application Control, Heimdal Ransomware Encryption Protection, Heimdal Patch & Asset Management, and Heimdal Threat Prevention. With 6 modules working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.

Kamatera’s cloud firewall solutions protect against attacks on private cloud networks and cloud servers. Our cloud security experts install cloud firewalls and monitor the activity of your server in real time. We protect your data by analyzing data packets and filtering them to identify their source, destination and content. Only certified and approved data packets are allowed to enter your servers. Our cloud firewalls offer comprehensive protection as they are compatible across all virtual appliances. Kamatera’s cloud firewalls are also capable of acting as a hardware VPN and a checkpoint for network traffic. This eliminates the requirement for additional VPN services. Our cybersecurity services are ideal for individuals, SMBs and enterprise-level businesses due to their versatility and infinite scalability. A single cloud firewall can secure your entire cloud infrastructure.

NextDNS protects against all types of security threats, blocks trackers and ads on websites and apps, and provides a safe and supervised Internet experience for children, on all devices and across all networks. You can define your threat model and adjust your security strategy by activating 10+ types of protections. The most trusted threat intelligence feeds contain millions of malicious domains and are all updated in real time. We analyze DNS questions and answers in real-time, allowing us to detect and block malicious behaviour. Our threat intelligence system can catch malicious domains faster than traditional security solutions, with typically only a few hours between domain registrations and the beginning of an attack. Block trackers and ads on websites and apps, even the most malicious. Block the most popular ads and trackers blocklists. Millions of domains are all kept up-to-date in real time.

Multilayered endpoint security that includes behavior-based analysis to protect against known and unknown threats. All your global software inventory can be viewed in real-time. You can see your global software inventory from anywhere, anytime. FortiClient cloud-delivered endpoint protection service for small and medium-sized businesses. An integrated endpoint protection platform that provides next-generation threat protection, visibility, and control over your entire hardware and software inventory across the entire security network. Identify and remediate compromised hosts on your attack surface. FortiClient is a key component of the Fortinet Security Fabric. It integrates endpoints within the fabric to prevent advanced threats and early detection. Security events such as zero-day malware, botnet detections and vulnerabilities are reported in real time.

IPFire is an open-source firewall that uses Linux. It is robust, flexible, and state-of the-art. It is easy to use, highly performant in any scenario, extensibility, and simplicity make it accessible for everyone. IPFire places security at the top of its priorities. It is designed to prevent attacks from the Internet by preventing attacks on your network. It protects your network from attacks from the Internet and denial of service attacks with its powerful firewall engine and intrusion detection system. IPFire is a free software program that was developed by an open-source community and trusted by thousands of users around the globe. IPFire's primary goal is security. It is easy to set up a firewall engine. An intrusion prevention system prevents any attackers from entering your network. The default configuration divides the network into zones with different security policies, such as a LAN or DMZ. This allows you to manage the risks within the network and create a customized configuration for your specific needs.

Our Linux virtual machines simplify cloud infrastructure and provide a robust set of tools that make it easy to develop, deploy, scale, and scale modern applications faster and more efficiently. Linode believes virtual computing is essential to enable innovation in the cloud. It must be accessible, affordable, and easy. Our infrastructure-as-a-service platform is deployed across 11 global markets from our data centers around the world and is supported by our Next Generation Network, advanced APIs, comprehensive services, and vast library of educational resources. Linode products, services and people allow developers and businesses to create, deploy, scale, and scale applications in the cloud more efficiently and cost-effectively.

The pfSense project provides a free network firewall distribution. It is based on FreeBSD's operating system with a custom kernel. Third-party free software packages are also included. The package system allows pfSense software to offer the same functionality as or more common commercial firewalls without any artificial limitations. It has replaced every major commercial firewall in many installations around the globe, including Check Point and Cisco PIX, Cisco ASA and Juniper.

Fortinet, a global leader of cybersecurity solutions, is known for its integrated and comprehensive approach to safeguarding digital devices, networks, and applications. Fortinet was founded in 2000 and offers a variety of products and solutions, including firewalls and endpoint protection systems, intrusion prevention and secure access. Fortinet Security Fabric is at the core of the company's offerings. It is a unified platform which seamlessly integrates security tools in order to deliver visibility, automate, and real-time intelligence about threats across the network. Fortinet is trusted by businesses, governments and service providers around the world. It emphasizes innovation, performance and scalability to ensure robust defense against evolving cyber-threats while supporting digital transformation.

For IT professionals to stop ransomware, you need to do more than look for threats. ThreatLocker helps you reduce your surface areas of attack with policy-driven endpoint security and change the paradigm from only blocking known threats, to blocking everything that is not explicitly allowed. Combined with Ringfencing and additional controls, you enhance your Zero Trust protection and block attacks that live off the land. Discover today the ThreatLocker suite of Zero Trust endpoint security solutions: Allowlisting, Ringfencing, Elevation Control, Storage Control, Network Access Control, Unified Audit, ThreatLocker Ops, Community, Configuration Manager and Health Center. 

Imunify360 provides security solutions for web-hosting servers. Imunify360 is more than antivirus and WAF. It combines an Intrusion Prevention & Detection system with an Application Specific Web Application Firewall, Real time Antivirus protection, and Patch Management components into one security suite. Imunify360 is fully automated and displays all statistics in an intuitive dashboard.

Data is the most valuable asset of your company, so it is important to protect it. Network security is about zero trust. You should never trust anyone outside or within your network perimeter. Network security is becoming more difficult because network perimeters are blurring and endpoints continue proliferating. Cyberattacks are also being launched using machine learning and automation. Organizations are shifting to the cloud to protect their data in a hybrid cloud/on premises environment. This is without adding cost or complexity. A huge step towards secure environments is the combination of micro-segmentation and real-time network governance. You can improve your security posture through automation and data by choosing the right software solution. ditno is a cybersecurity management platform that offers a zero trust network approach to simplify and improve security.

Simple packet filters will soon be a thing of history. Even the open-source community is moving toward Next-Generation Firewalls. OPNsense, a leader in intrusion detection, web filtering and anti-virus, is also a leading player. No network is too small to be targeted by an attacker. Even home networks, washing machine, and smartwatches, are at risk and require a safe environment. Firewalls are an important part of the security concept. They protect computers and networks from known and unknown threats. A firewall will offer the best protection if it is easy to use, has well-known functions, and is placed in the right place. OPNsense takes on the challenge of meeting these criteria and does so in different ways. This book is an ideal companion to help you understand, install and set up an OPNsense Firewall.

Open source software and a universal router are key to democratizing the way we access networks. VyOS' vision is to revolutionize how we access networks, so that everyone can build the solutions they have always wanted, without limitations, restrictions, or prohibitive prices. We believe that internet access is just as important to human development as food, water, air, and healthcare. VyOS was founded by engineers for engineers. It is an open-source software company that makes it possible to access networks without restrictions or prohibitive fees. Through our open-source software and virtual platforms, we do this as VyOS. Stateful firewalls, zone based firewall, all types source and destination NAT (one-to-one, one-to many, many to many). For auditing, creating customized images and contributing, everyone has access to the entire codebase and build toolchain.

CrowdSec, a free, open-source, and collaborative IPS, analyzes behaviors, responds to attacks, and shares signals across the community. It outnumbers cybercriminals. Create your own intrusion detection system. To identify cyber threats, you can use behavior scenarios. You can share and benefit from a crowdsourced, curated cyber threat intelligence platform. Define the type and location of the remediation you wish to apply. Use the community's IP blocklist to automate your security. CrowdSec can be run on containers, virtual machines, bare metal servers, containers, or directly from your code using our API. Our cybersecurity community is destroying cybercriminals' anonymity. This is our strength. You can help us create and distribute a qualified IP blocklist that protects everyone by sharing IP addresses you have been annoyed by. CrowdSec can process massive amounts of logs faster than Fail2ban, and is 60x faster than Fail2ban.

AP Lens is a Sandbox browser that isolates networks by using DNS Whitelisting. We stop the attack before it reaches your network. What does AP Lens offer? Web Filtering: Flexible, user-friendly content blocking. Anti-Phishing - Stop looking-alike domains with 100% accuracy Ransomware Protection: Protect your network from hackers without affecting your business applications. Secure Remote Work: Use VPN to enforce internet usage policies. AP Lens Augmented whitelist: No more 0-Day Attacks - Compliance: AP Lens meets the regulatory requirements of cybersecurity insurance policies. - One-Click Installation - No need to set up or update the user's computer. - No Maintenance: Stop malware or phishing without constant monitoring Our team has over 20 years of combined experience in cyber security, cloud security and information protection in various industries, such as the private sector and public sector.