Best Network Security Software for Linux

OpenVPN’s scalable, easy-to-deploy solutions are built on our time-tested, industry standard open source protocol. With the ability to split traffic and only tunnel sensitive data, you won’t sacrifice internet performance or speed for security. With OpenVPN, you can say goodbye to your legacy VPN and traditional hardware and architecture that made it difficult to scale and grow. You’ll be able to harness next-gen VPN technology that grows with you and protects your business no matter where your team is working, whether from a tablet at their kitchen table, a laptop in a coffee shop, or a mobile phone at their desk.

Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. - Block malicious threats - Block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more) - Deploy in minutes on fleets of devices using RMM - Manage clients using sub-organizations - Gain visibility on network events and usage patterns, with client level granularity - Re-route traffic via proxies (through DNS) for improved privacy and security - Enjoy superior UX and simplicity Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.

ManageEngine OpManager, as a network security monitor, provides real-time detection of network anomalies and potential security threats. It monitors device configurations, tracks unauthorized changes, and ensures compliance with security policies. With proactive alerting, OpManager helps identify suspicious traffic patterns, potential vulnerabilities, and performance issues, enabling quick response to mitigate risks. It also integrates with firewall and intrusion detection systems, enhancing network security by offering visibility into potential attacks and breaches.

UTunnel provides Cloud VPN, ZTNA, and Mesh Networking solutions for secure remote access and seamless network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service offers swift deployment of Cloud or On-Premise VPN servers. It utilizes OpenVPN and IPSec protocols, enables policy-based access control, and lets you deploy a Business VPN network effortlessly. ONE-CLICK ACCESS: A Zero Trust Application Access (ZTAA) solution that simplifies secure access to internal business applications. It allows users to securely access them via web browsers without the need for a client application. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution based on WireGuard enables granular access controls to business network resources and easy creation of secure mesh networks. SITE-TO-SITE VPN: The Access Gateway solution lets you easily set up secure Site-to-Site tunnels (IPSec) between UTunnel's VPN servers and hardware network gateways, firewalls & UTM systems.

Secure instant messaging system with own server that can work in local area network and over the Internet. Providing collaboration tools for employee engagement. Built-in knowledge base, important notifications with return receipts, Bulletin board, broadcast messages, flexible server management, the system for user rights to access MyChat features, voice/video calls, screen sharing calls, Kanban project management, conferences, private dialogues, extended contact list, available for all platforms: Windows, macOS, Linux, Android, iOS, WEB.

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.

InstaSafe is redefining the challenge of secure access to modern networks by leveraging Zero Trust principles with its security solutions, that ensure seamless access to cloud applications, SAP applications, on-premise data, IoT devices, and multiple other neoteric use cases. InstaSafe discards traditional VPN based conceptions of a network perimeter, instead moving the perimeter to the individual users and the devices they access. The Zero Trust approach followed by InstaSafe mandates a “never trust, always verify' approach to privileged access, without focusing on network locality. InstaSafe ZTAA relies on continuously assessing the trust and risk associated with every user, and the context of their access request, and simultaneously employs a system of comprehensive authentication before grnating least privilege access. By only making authorised applications accessible to the user, and not exposing the network to these users, ZTAA serves to negate the exploitable attacks surface

Axonius gives customers the confidence to control complexity by providing a system of record for all digital infrastructure. With a comprehensive understanding of all assets including devices, identities, software, SaaS applications, vulnerabilities, security controls, and the context between all assets, customers are able to mitigate threats, navigate risk, decrease incident response time, automate action, and inform business-level strategy — all while eliminating manual, repetitive tasks. Recognized as creators of the Cyber Asset Attack Surface Management (CAASM) category and innovators in SaaS Management Platform (SMP) and SaaS Security Posture Management (SSPM), Axonius is deployed in minutes and integrates with hundreds of data sources to provide a comprehensive asset inventory, uncover gaps, and automatically enforce policies and automate action.

Secure app & infrastructure access, purpose-built for enterprises. Banyan replaces your traditional network access boxes, VPNs, bastion hosts, and gateways, with a cloud-based zero trust access solution. One-click infra access, never expose private networks. Dead simple setup, high-performance connectivity. Automate access to critical services, without exposing private networks. One-click access to SSH/RDP, Kubernetes, and database environments, including hosted applications like GitLab, Jenkins, and Jira. CLI, too! Collaborate across on-premises and cloud environments, without complex IP whitelisting. Automate deployment, onboarding, and management with tag-based resource discovery & publishing. Simple cloud-delivered user-to-application (not network) segmentation, optimized for availability, scale, and ease of management. Superior user experience supports agentless, BYOD, and passwordless scenarios with one-click access via service catalog.

PureDome, an advanced secure connectivity solution, is purpose-built to elevate network security for businesses. Streamlining access management enables authorized team members to exclusively access company assets. With its unified cloud platform, PureDome integrates crucial elements of user roles, including secure remote access, data access control, and team management. This integration simplifies network infrastructure management and centralizes operations, facilitating seamless business workflows. PureDome empowers teams to securely connect to the corporate network from any location through its reliable, secure remote access feature. Businesses can rely on PureDome's exceptional customer support, available 24/7 via live chat and ticket support, to address any concerns or inquiries promptly and effectively. Main Features: Secure Remote Access Dedicated IPs for Individual Customers User & Device Management Network Segmentation Centralized Management Plan Customization

Armis, the leading asset visibility and security company, provides the industry’s first unified asset intelligence platform designed to address the new extended attack surface that connected assets create. Fortune 100 companies trust our real-time and continuous protection to see with full context all managed, unmanaged assets across IT, cloud, IoT devices, medical devices (IoMT), operational technology (OT), industrial control systems (ICS), and 5G. Armis provides passive cyber asset management, risk management, and automated enforcement. Armis is a privately held company and headquartered in California.

AP Lens is a Sandbox Browser that isolates networks using DNS Whitelisting. We stop the attack before it reaches the network. What does AP Lens provide? - Web Filtering: Flexible and user-friendly content blocking. - Anti-Phishing: Stop look-alike domains with 100% accuracy. - Ransomware Protection: Isolate the network without affecting business applications. - Secure Remote Work: Enforce internet usage policies without VPN slowness. - No More 0-Day Attacks: Escape the limits of blacklisting with AP Lens Augmented Whitelist. - Compliant: AP Lens meets regulatory requirements requested by cybersecurity insurance policies. - One-Click Installation: No need for a lengthy setup process or updating from the user's side. - No Maintenance: Stop malware and phishing without continuous monitoring. Our team builds on over 20 years of experience in cyber security, cloud security, and information protection in industries such as private banking and the public sector.

Remote workforce, BYOD assets, and third-party access have created a new security dilemma for organizations. Relying solely upon a VPN as security for remote workers and third-party access is insufficient to protect the network. While VPNs provide a degree of protection through encrypting inbound traffic, their security failure comes through providing full network access to users with no privileged access demarcation. RevBits ZTN encrypts, authenticates, and securely connects external users, over SSL/TSL, to internal network assets and applications to which they have specific access without granting full network access. Moving the network perimeter to the endpoint RevBits Zero Trust Network (ZTN) helps isolate and protect your internal assets. As the network perimeter moves to where the user is, RevBits Zero Trust Network (ZTN) helps isolate and protect internal network assets without the necessity of implementing complicated network segmentation.