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.

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, Amsterdam, and Stockholm. 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.

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.

NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids, on all devices and on all networks. Determine your threat model and fine-tune your security strategy by enabling 10+ different types of protections. Use the most trusted threat intelligence feeds containing millions of malicious domains, all updated in real-time. Go beyond the domain, we analyze DNS questions and answers on-the-fly (in a matter of nanoseconds) in order to detect and block malicious behavior. With usually only a few hours between domain registration and the start of an attack, our threat intelligence system is built to catch malicious domains earlier than classic security solutions. Block ads and trackers on websites and in apps, including the most devious ones. Use the most popular ads & trackers blocklists, millions of domains all updated in real-time.

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.

Block malware, tracking, & ads on every device in your network. Choose a single device, a group, or your entire network. Simple software deployment and configuration. Custom blocklist & exceptions. Blockade is DNS-based server software designed to block third-party tracking software, analytical software, ads and access to sites known to carry malware for all computers and devices on your network that can browse the internet. A single server software license is all that is needed to protect all of the devices (computers, servers, laptops, Chromebooks, handhelds, smart TVs, tablets, phones) connected on your network and across your WI-FI from internet tracking software and ads. Load Blockade directly onto any Windows or Linux computer on your network not currently running DNS services or web services. Blockade keeps advertisements, tracking, and analytical software off of your network.

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.