Features

Netra Proxy Cache Servers support the following features:

• High-performance CPU with memory and disk amounts chosen for optimum performance in proxying and caching. (Details of the hardware configuration are spelled out in the hardware documentation that accompanies the product.)

• Compatible with the Squid, Harvest, and CERN proxy standards.

• Supports the Inter Cache Protocol (ICP).

• Caches HTTP 1.0, FTP, and Gopher objects. This list includes, among other types, GIF, JPEG, and.exe.

• Supports Secure Sockets Layer (SSL) tunneling.

• Supports persistent HTTP connections, commonly referred to as "keep-alives."

• The cache persists across reboots.

• Configurable cache-object expiration times. The Netra Proxy Cache software ages and deletes a cache object based on attributes specified in its uniform resource locator (URL). The product offers a flexible scheme for cache-object expiration.

• Similar to the preceding point, the software offers a flexible scheme for setting a cache object to non-cacheable, again, based on its URL.

• Supports dynamic parent failover: If Netra Proxy Cache Server has multiple parents and is connected to a parent that fails, the server fails over to the next available parent. Furthermore, the Netra Proxy Cache Server detects when the original parent comes back online.

• Supports conditional retrievals; for example, can retrieve an object if it has been modified in the last day. You can modify the time threshold to suit your needs.

• Caching software imposes no limit on the amount of data cached.

• Enables you to build hierarchies of (or collections of peer) proxy servers. See "Hierarchies".

• Offers a number of auditing features, including hit statistics, detailed user access logs, bandwidth usage statistics, and a number of other proxy- and cache-related statistics.

• Ships with an SNMP MIB and agent, so that you can manage a Netra Proxy Cache Server from an SNMP-conformant management platform, such as Solstice(TM) Domain Manager.

• Offers a variety of filtering features, including blocking and redirecting of HTTP requests based on URL, hostname, or user.

• Shipped with a set of web-based tools for product configuration and monitoring.