Network Appliance Design

The CacheGuard Gateway is a network security and traffic‑optimization appliance that can be deployed quickly and easily within your organization. When you deploy a CacheGuard Gateway, you gain access to multiple features in a single device, which you can activate according to your requirements. All CacheGuard Gateway features are integrated into a core product called CacheGuard‑OS. Once installed on a machine, CacheGuard‑OS transforms it into a powerful network appliance. The CacheGuard Gateway on Azure is a ready‑to‑use virtual machine powered by CacheGuard‑OS.

Security & Optimization

You can use the CacheGuard Gateway either as a forwarding proxy to secure web browsing or as a reverse proxy to protect your web applications in the cloud. As a forwarding proxy, the CacheGuard Gateway filters unwanted websites and blocks malware before it can enter your network. As a reverse proxy, it functions as a Web Application Firewall (WAF), allowing you to safeguard your applications against content‑based attacks. In addition, the CacheGuard Gateway includes a VPN server, web application load balancer, firewall, web caching system, traffic shaping and QoS capabilities, a mini PKI, and much more. The CacheGuard Gateway provides the power to manage all these functions as easily as possible.

Powered by CacheGuard-OS

All CacheGuard appliances run on an appliance‑oriented operating system called CacheGuard‑OS. CacheGuard‑OS has been open source and free since version UF‑2.4.1, with charges applying only for optional support. Please note that if you deploy a CacheGuard Gateway on Azure in its BYOL form with a version prior to UF‑2.4.1, you are strongly advised to upgrade it as soon as possible to the latest version. The latest version is announced at https://www.cacheguard.net/doc/guide/changelogs.html.
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CacheGuard‑OS has been rigorously and securely built from scratch around a Linux kernel, embedding only the programs that are strictly necessary. While over 100,000 lines of open‑source code were developed specifically for CacheGuard‑OS, the operating system also incorporates well‑known open‑source technologies provided by the wider open‑source community. CacheGuard‑OS represents a coherent integration of multiple technologies, delivering a powerful, robust, and easy‑to‑manage solution.

Functional & Easy to Handle

If you are a system administrator seeking a powerful yet easy‑to‑manage solution to secure and/or optimise your networks, the CacheGuard Gateway is ideal for you. The CacheGuard Gateway can be configured and managed using a CLI (Command Line Interface) and/or a web GUI (Graphical User Interface). CacheGuard products are supplied with comprehensive online and offline documentation.

Our active and responsive technical forum, https://help.cacheguard.net/ allows you to find answers to your questions quickly. Learn more at https://www.cacheguard.com/.

Usage Instructions

You can manage your CacheGuard Gateway via its web GUI at or via SSH. By default, the CacheGuard Gateway on Azure uses two distinct public IP addresses: one external IP for outgoing internet traffic and one internal IP for incoming connections to its embedded web proxy on TCP port 8080. If you manage and use your CacheGuard Gateway from the same local public IP address (as a web proxy), it will be accessible only via its internal public IP from that local IP.

The CacheGuard Gateway is supplied with comprehensive online and offline documentation, including a User’s Guide and a Command Line Manual. You can access the CacheGuard documentation through the administration interfaces (console, SSH, or HTTPS) or online.

You can monitor the health of a CacheGuard Gateway either by reviewing the reports available through its web GUI or by using the "system report" command in the CLI. Additionally, the CacheGuard Gateway supports SNMP and the syslog protocol.

Caution

The CacheGuard Gateway used as a remote web proxy on Azure is intended for evaluation or temporary use only and is not designed for long‑term deployment, as data transfer above a specified monthly limit is charged by Azure.

CacheGuard Gateway

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