CacheGuard

CacheGuard

CacheGuard Technologies
LinkGuard

LinkGuard

Blue Ridge Networks
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About

CacheGuard-OS is a free, open-source Linux-based network security appliance OS that turns any standard x86 machine into a UTM gateway. It sits between your devices and your ISP router, becoming the checkpoint for all internet traffic — no IT team required. Open-source since its first release, CacheGuard-OS includes: stateful firewall, web antivirus (ClamAV), URL filtering, SSL inspection, WAF (ModSecurity), VPN server (StrongSwan), web cache (Squid), QoS (IPRoute2), and WAN load balancing. It installs on bare metal or any common hypervisor in under an hour. Configuration is handled through a web-based admin interface with no command-line expertise needed. Built for small businesses, schools, and sysadmins who need production-grade network security on commodity hardware.

About

LinkGuard from Blue Ridge Networks is a cybersecurity and network-segmentation solution designed to secure critical IT and OT (operational technology) assets by placing them inside a “stealth” overlay that isolates, conceals, encrypts, and authenticates access to sensitive systems. LinkGuard uses a zero-trust, high-assurance cryptographic overlay (called CyberCloak) that creates separate secure Layer-2 network enclaves, segregating protected systems from the general network and each other, thereby dramatically reducing the attack surface without requiring changes to existing network infrastructure. Because LinkGuard operates as an overlay rather than replacing underlying networking or requiring reconfiguration of IP addressing, it can rapidly deploy using pre-configured cryptographic devices (like BorderGuard) and/or client-side agents, enabling secure remote access across distributed sites.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Network Security & Optimization for SMB

Audience

Organizations managing critical IT and/or OT infrastructure seeking a solution to optimize their network segmentation, secure remote access, and cryptographic protection for sensitive assets and operations

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0
Free for any number of users. Optional paid support available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • We acquired the solution for our deployment in our branches with a goal of load balancing and QoS features, I have to say that we were impressed by the quality of the solution and the professionalism of the support team. I highly recommend CacheGuard.
  • Hello! I just wanted to drop a quick note to let you know that I've been really impressed with CacheGuard. The service has been incredibly user-friendly and has exceeded my expectations in terms of simplicity and effectiveness.

Cons

  • We have the solution in production and so far so good.
  • I also wanted to express my sincere appreciation to the CacheGuard support team. They've been fantastic in providing prompt and helpful assistance whenever I've needed it. Thank You.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

CacheGuard Technologies
Founded: 2025
France
www.cacheguard.com

Company Information

Blue Ridge Networks
Founded: 1997
United States
blueridgenetworks.com/linkguard/

Alternatives

Alternatives

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BlastShield

BlastWave
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SONiC

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TorGuard

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Enclave

Enclave

SideChannel
VyOS

VyOS

VyOS Networks
AQtive Guard

AQtive Guard

SandboxAQ

Categories

Categories

Network Security Features

Access Control
Analytics / Reporting
Compliance Reporting
Firewalls
Internet Usage Monitoring
Intrusion Detection System
Threat Response
VPN
Vulnerability Scanning

Web Application Firewalls (WAF) Features

Access Control / Permissions
Alerts / Notifications
Automate and Orchestrate Security
Automated Attack Detection
Dashboard
DDoS Protection
IP Reputation Checking
Managed Rules
OWASP Protection
Reporting / Analytics
Secure App Delivery
Server Cloaking
Virtual Patching
Zero-Day Attack Prevention

Integrations

Proxmox VE
VMware ESXi
VirtualBox

Integrations

Proxmox VE
VMware ESXi
VirtualBox
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