Average Ratings 2 Ratings

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support

Average Ratings 0 Ratings

Total
ease
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Description

CacheGuard-OS is an open-source Linux-based UTM gateway appliance OS that has been in active development since 2002. It is designed to run on commodity x86 hardware and act as the default route between an internal network and the internet, replacing the ISP-provided router as the traffic checkpoint. The stack integrates: Squid (web cache and proxy), ClamAV (web antivirus), ModSecurity (WAF), StrongSwan (IPsec/IKEv2 VPN), IPRoute2 (QoS and WAN load balancing), NetFilter (stateful firewall), SSL inspection, and URL filtering. All components are configured through a web-based admin interface rather than directly, making the platform accessible to operators without deep Linux expertise while remaining auditable by those who want to inspect the underlying configuration. The OS has been open-source since its first release — source ships on every installed appliance. It was recently published publicly on GitHub to make the codebase easier to browse and audit. Target deployments are small to medium networks — SMBs, schools, and branch offices — where a commercial UTM appliance is overkill on budget but the threat surface is the same. Runs on bare metal or common hypervisors (VMware, VirtualBox, KVM, Hyper-V). No vendor lock-in, no subscription, no licence cost. GitHub: cacheguard/CacheGuard-OS

Description

Blue Ridge Networks offers LinkGuard, a solution focused on cybersecurity and network segmentation aimed at protecting essential IT and operational technology (OT) assets by embedding them within a "stealth" overlay that effectively isolates, conceals, encrypts, and authenticates access to these critical systems. Utilizing a zero-trust, high-assurance cryptographic overlay known as CyberCloak, LinkGuard establishes distinct secure Layer-2 network enclaves that separate safeguarded systems from both the broader network and each other, significantly minimizing the attack surface while avoiding any modifications to the current network setup. This innovative approach allows LinkGuard to function as an overlay, eliminating the need to replace existing network infrastructure or reconfigure IP addresses, thus facilitating rapid deployment through the use of pre-configured cryptographic devices such as BorderGuard and/or client-side agents. As a result, LinkGuard enables secure remote access across various distributed locations, providing an efficient and robust solution for modern cybersecurity challenges. Its design underscores the importance of maintaining a secure environment while leveraging existing technologies.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Proxmox VE Yes 
VMware ESXi Yes 
VirtualBox Yes 

Integrations

Proxmox VE No 
VMware ESXi No 
VirtualBox No 

Pricing Details

$0
Free for any number of users. Optional paid support available.
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person Yes 

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

CacheGuard Technologies

Founded

2025

Country

France

Website

www.cacheguard.com

Vendor Details

Company Name

Blue Ridge Networks

Founded

1997

Country

United States

Website

blueridgenetworks.com/linkguard/

Product Features

Network Security

Access Control Yes 
Analytics / Reporting No 
Compliance Reporting No 
Firewalls Yes 
Internet Usage Monitoring No 
Intrusion Detection System No 
Threat Response No 
VPN Yes 
Vulnerability Scanning No 

Web Application Firewalls (WAF)

Access Control / Permissions Yes 
Alerts / Notifications No 
Automate and Orchestrate Security No 
Automated Attack Detection No 
DDoS Protection No 
Dashboard Yes 
IP Reputation Checking Yes 
Managed Rules Yes 
OWASP Protection Yes 
Reporting / Analytics Yes 
Secure App Delivery No 
Server Cloaking Yes 
Virtual Patching Yes 
Zero-Day Attack Prevention No 

Product Features

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