Best Network Security Software for Linux

OpManager is a network management tool geared to monitor your entire network. Ensure all devices operate at peak health, performance, and availability. The extensive network monitoring capabilities lets you track performance of switches, routers, LANs, WLCs, IP addresses, and firewalls. Monitor the finer aspects of your network: Hardware monitoring enables CPU, memory, and disk monitoring, for efficient. performance of all devices. Perform seamless faults and alerts management with real-time notifications and detailed logs for quick issue detection and resolution. Achieve network automation, with workflows enabling automated diagnostics and troubleshooting actions. Advanced network visualization-including business views, topology maps, heat maps, and customizable dashboards give admins an at-a-glance view of network status. 250+ pre-built reports covering metrics like device performance, network usage, uptime, facilitate capacity planning and improved decision-making.

Firewall Analyzer helps manage and optimize firewall policies, automates firewall rule administration, tracks configuration, rule changes, helps schedule configuration backup, executes regular compliance audit checks, performs periodic security audits, generates real-time alerts for security events, tracks VPN usage, generates VPN reports, displays the current security status of firewalls, tracks employee internet usage, monitors to generate live, historical bandwidth reports, alerts when bandwidth is exceeded, collects, consolidates, and analyzes firewall logs to generate security, bandwidth reports.

NetFlow Analyzer is a comprehensive traffic analysis tool that leverages flow technologies to provide real-time visibility into network bandwidth performance. NetFlow Analyzer is primarily a bandwidth monitoring tool, which has optimized thousands of networks globally, offering a holistic view of your network bandwidth and traffic patterns. NetFlow Analyzer is a unified solution that collects, analyzes, and reports on your network's bandwidth usage, and by whom. NetFlow Analyzer is your partner in optimizing bandwidth usage across a million interfaces globally, as well as providing network forensics and network traffic analysis. Reconfigure policies with traffic shaping via ACLs or class-based policies to gain control of the applications that use the most bandwidth. NetFlow Analyzer leverages Cisco NBAR technology to give you deep visibility into Layer 7 traffic and recognize applications that use dynamic port numbers or hide behind known ports.

GoodAccess is a cybersecurity platform (SASE/SSE) that empowers medium-sized enterprises to easily implement Zero Trust Architecture (ZTA) in their infrastructure, regardless of its complexity or scale. By leveraging a Low-Code/No-Code approach, GoodAccess delivers a hardware-free, rapid deployment solution within hours or days, allowing companies to enhance their security without the need for in-house IT experts. Our platform ensures seamless integration with modern SaaS/cloud applications as well as legacy systems, protecting critical assets for remote and hybrid workforces. GoodAccess serves businesses with 50-5000 employees across diverse industries, particularly those adopting multi-cloud and SaaS environments. Start your 14-day full-featured free trial.

At SafeDNS, we are committed to creating a safer and more secure online environment for SMBs, enterprises, ISPs, MSPs, OEMs, and Education. We have a global footprint, making the internet safer for millions of users in over 60 countries. With years of experience in the field of cybersecurity and DNS filtering, we offer cutting-edge solutions to safeguard your digital life. At present, SafeDNS serves more than 4000 businesses and institutions, and tens of thousands of home users worldwide. We do: -Web content filtering. We help you block all dangerous or unwanted websites such as pornography, violence, child sexual abuse and similar categories. -Malware protection. We also have your back against malicious sites trying to breach user devices either with viruses or information theft intent. -Cloud service. Additionally, we provide you with a cloud filtering service that requires no additional hardware purchase or software installation.

N‑able N-sight RMM® is a cloud-based IT solution that makes it easy for MSPs to deliver valuable technology services within hours, not weeks or months. Clear graphical dashboards place alerts front and center so you can focus on what needs you most. Built-in remote access and security features help you support and protect from day one. And when you’re ready, grow your business with additional security layers and add-ons services to expand your offering. N‑able N-sight RMM features include remote access, network path visualization, automated monitoring and maintenance, prescriptive data analytics, data-breach risk intelligence, and more. N‑able N-sight RMM is also available for download as Android and iOS mobile apps to allow users to manage issues anywhere.

As the market leader in automated web application security testing, Acunetix by Invicti is the go-to security tool for Fortune 500 companies. DevSecOps teams can cut through the noise to uncover unseen risks and mitigate dangerous exploits, detecting and reporting on a wide array of vulnerabilities. With an industry-leading crawler that fully supports HTML5, JavaScript, and Single-page applications, Acunetix enables the auditing of complex, authenticated applications for deeper insight into an organization's risk posture. It's a leader for a reason: the technology behind Acunetix delivers the only product on the market that can automatically detect out-of-band vulnerabilities to enable comprehensive management, prioritization, and control for vulnerability threats by criticality. Plus, it's available both online and as an on-prem solution, integrating with popular issue trackers and WAFs so that DevSecOps teams don't have to slow down when building innovative apps.

Network Analyzer provides an in-depth look at all network traffic sources and potential security threats allowing system admins to quickly gather high-level information regarding the health of the network as well as highly granular data for complete and thorough network analysis. Network Analyzer provides a central view of your network traffic and bandwidth data as well as potential network compromises. The powerful home dashboard provides an at-a-glance view of critical netflow or sflow data sources, server system metrics, and abnormal network behavior for quick assessment of network health. Users can easily drill down to see specific information on individual IPs, source port, destination port, or any combination thereof. Network Analyzer’s advanced alerting and reporting capabilities provide IT staff with superior awareness of their network. Highly granular, down-to-the-packet data can be accessed and archived for further tracking and analysis.

This single, fully integrated solution conducts active, passive and agent-based assessments while its extensive flexibility evaluates risk according to each business. SAINT’s impressive, flexible and scalable scanning capabilities set it apart from many others in this space. SAINT has partnered with AWS, allowing its customers to take advantage of AWS’s efficient scanning. Should subscribers prefer, SAINT also offers a Windows scanning agent. Security teams can schedule scans easily, configure them with considerable occurrence flexibility and fine-tune them with advanced options. As a vulnerability management solution, SAINT Security Suite’s security research and development efforts focus on investigation, triage, prioritization, and coverage of vulnerabilities of the highest levels of severity and importance. Not willing to settle for just blanket coverage and raw data, our analysts focus on developing tools for what matters to our customers.

Sectrio was launched as Subex Secure in the year 2016 to meet the growing needs of businesses in securing their Internet of Things and Operational Technology footprint on a single platform. To meet this objective, Subex invested in building the world’s largest adaptable honeypot network ground-up while simultaneously building an agile product with features aligned to the needs of our growing customer base. Subex Secure was rebranded as Sectrio in September 2021 to reflect the arrival of the next phase of our product and innovation evolution. Today, Sectrio has deployments across North America, the Middle East, APAC, and Indian markets. Our customer base is spread across verticals. Sectrio also is home to the largest number of cybersecurity domain specialists including the industry’s leading threat research team.

Delska (former DEAC European Data Center & Data Logistics Center) is a carrier-neutral data center and network provider in Northern Europe with 25 years of experience delivering reliable, personalized IT and network solutions in cloud computing, colocation, data security, network, and more. We own five data centers (one under construction, launching in 2025) in Riga and Vilnius, along with points of presence in Frankfurt and Amsterdam. For quick IT infrastructure deployment in Riga, Vilnius and Frankfurt, we have created the self-service myDelska cloud platform. It offers fast, secure, and scalable solutions and, in the summer of 2025, along with the VM management, will also offer bare metal servers. Delska data centers stand out for their energy efficiency, operating at PUE under 1.3 and powered entirely by green energy. Our upcoming Tier III-certified, 10 MW data center in Riga will exemplify green construction.

Armis Centrix™ is a comprehensive cyber exposure management platform that provides continuous, real-time visibility and protection across IT, OT, IoT, and IoMT environments. Powered by the Armis AI-driven Asset Intelligence Engine, it identifies every connected device, assesses cyber risk, and monitors vulnerabilities across an organization’s entire digital attack surface. The platform automates risk scoring, streamlines compliance reporting, and supports rapid incident response through deep asset intelligence. With capabilities that span asset management, OT/IoT security, medical device protection, and early warning threat detection, Armis Centrix™ enhances operational resilience for modern enterprises. VIPR Pro adds advanced prioritization and remediation to connect findings directly to actionable fixes. Designed as a cloud-native, frictionless platform, Armis Centrix™ empowers organizations to reduce exposure, strengthen security posture, and maintain continuity at scale.