Bastion reverse proxy server

Deploy Secure Mobile Email without Microsoft Forefront

Bastion forwards traffic to the configured backend servers (e.g., Microsoft Exchange or internal website). However, by employing a pluggable filtering architecture, it can be easily extended to support any kind of HTTP filtering. Many of Agat Software's security products (including the ActiveSync Shield suite) are already available as Bastion filters.Bastion is a lightweight, extensible and highly scalable reverse proxy server solution, focused on content filtering for HTTP(S) traffic. Bastion is designed to enable organizations that do not use Microsoft Forefront gateways to take advantage of the ActiveSync Shield secure mobile email product suite.

Scalable Event-Driven Architecture

Bastion is designed as an event-driven server using asynchronous I/O which uses a small number of threads to respond to requests. This significantly reduces the overhead vis-a-vis thread-driven synchronous I/O architectures. Accordingly, the event-driven architecture greatly enhances scalability, allowing Bastion to handle a higher number of concurrent TCP connections compared to process or thread-driven reverse proxy servers.

Bastion can operate on both HTTP requests and responses. Requests and responses can be blocked, modified or left as is (if no filtering is needed). Since Bastion offers maximum HTTP protocol compatibility (beyond the common web usage subset), it can be used to filter almost any HTTP-based protocol, such as Exchange ActiveSync.