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What is CacheGuard?

CacheGuard is a free, open-source network security gateway designed for small and medium businesses that need professional-grade internet protection without the cost of a dedicated IT team or a commercial appliance subscription. Most SMBs rely on the router their internet provider gave them. That router was built to connect, not to protect — it forwards all traffic without inspecting it, leaving the network exposed to malware, phishing, data leaks, and unauthorised access. CacheGuard fixes this by sitting between the internal network and the ISP router, acting as the security checkpoint for all internet traffic. What CacheGuard covers: Stateful firewall — control what enters and leaves your network Web antivirus — real-time scanning of HTTP/HTTPS traffic URL filtering — block websites by category or custom list SSL inspection — inspect encrypted HTTPS traffic Web Application Firewall — block malicious web requests VPN server — secure remote access for your team Web cache — faster browsing, lower bandwidth usage QoS and WAN load balancing — traffic shaping across internet links Key advantages over commercial alternatives: No licence cost, no subscription, no vendor lock-in Runs on any spare x86 PC or common hypervisor Web-based admin interface — no command-line expertise needed Open-source and auditable — in active development since 2002 ISP router requires no reconfiguration CacheGuard installs from a single ISO in under an hour and is suitable for offices, schools, branch networks, and home labs.

What is Azure NAT Gateway?

The NAT Gateway is an all-encompassing service designed to efficiently manage and secure internet traffic routing from a private virtual network, delivering exceptional performance and minimal latency. With built-in high availability facilitated by software-defined networking, it simplifies the configuration, scaling, and implementation of outbound connectivity that adapts to varying workloads. By leveraging a NAT gateway resource, organizations can establish secure outbound internet connections while ensuring enterprise-grade performance and low latency. A few clicks are all it takes to link your NAT gateway to designated subnets within a single virtual network alongside static public IP addresses. After establishing this connection to a subnet, the NAT Gateway automatically adopts the default internet route, removing the necessity for further traffic routing setup. This streamlined process not only enhances operational efficiency but also boosts reliability, making it an excellent choice for organizations aiming to optimize their network infrastructure. Ultimately, the NAT Gateway stands out as a vital component for businesses seeking to streamline their internet connectivity solutions.

Media

Media

Integrations Supported

Proxmox VE
VMware ESXi
VirtualBox

Integrations Supported

Azure Marketplace
Microsoft Azure

API Availability

Has API

API Availability

Pricing Information

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

Pricing Information

$0.045 per hour
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Standard Support
Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars

Company Facts

Organization Name

CacheGuard Technologies

Date Founded

2025

Company Location

France

Company Website

www.cacheguard.com

Company Facts

Organization Name

Microsoft

Date Founded

1975

Company Location

United States

Company Website

azure.microsoft.com/en-us/products/azure-nat-gateway

Categories and Features

Network Security

Access Control
Firewalls
VPN

Secure Web Gateways

Not specified

WAN Optimization

Not specified

Web Application Firewalls (WAF)

Access Control / Permissions
Dashboard
IP Reputation Checking
Managed Rules
OWASP Protection
Reporting / Analytics
Server Cloaking
Virtual Patching

Categories and Features

Secure Web Gateways

Not specified

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