Best Network Security Software for Linux

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.

SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.

NinjaOne automates the hardest parts of IT, delivering visibility, security, and control over all endpoints for more than 20,000 customers. The NinjaOne automated endpoint management platform is proven to increase productivity, reduce security risk, and lower costs for IT teams and managed service providers. The company seamlessly integrates with a wide range of IT and security technologies. NinjaOne is obsessed with customer success and provides free and unlimited onboarding, training, and support.

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.

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.

Datadog is the monitoring, security and analytics platform for developers, IT operations teams, security engineers and business users in the cloud age. Our SaaS platform integrates and automates infrastructure monitoring, application performance monitoring and log management to provide unified, real-time observability of our customers' entire technology stack. Datadog is used by organizations of all sizes and across a wide range of industries to enable digital transformation and cloud migration, drive collaboration among development, operations, security and business teams, accelerate time to market for applications, reduce time to problem resolution, secure applications and infrastructure, understand user behavior and track key business metrics.

DNSFilter is a cloud-based security solution that provides DNS-level protection against online threats and unwanted content. Leveraging its proprietary AI engine, Webshrinker, DNSFilter continuously scans and categorizes over 180 million websites, enabling real-time blocking of malicious domains, phishing sites, and inappropriate content. The platform offers flexible deployment options, including agentless setups and roaming clients for various operating systems, ensuring comprehensive coverage for both on-site and remote users. With features like intuitive reporting, customizable filtering policies, and compliance with regulations such as CIPA, DNSFilter serves diverse sectors, including education, healthcare, and enterprise environments. Additionally, its global Anycast network ensures rapid DNS resolution, enhancing both security and performance for its users.

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.

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.