Sun Java System Web Proxy Server
|Original author(s)||Sun Microsystems|
|Stable release||4.0.19 (latest patch 4.0.24)|
|Website||Oracle iPlanet WPS page|
The Sun Java System Web Proxy server, is a popular HTTP/1.1 Proxy server software developed by Sun Microsystems. SJSWPS 4.0 is widely used for proxying, caching, and filtering web content, boosting network security and performance, as well as to protect and secure, and load balance across, content servers.
Earlier known as Sun ONE Web Proxy server, the Sun Java System Web Proxy Server 4.0 is a major rewrite of the older 3.x version of Sun's Proxy server, formerly known as Netscape Proxy Server.
The Netscape Proxy Server version 3.x was essentially a coupling between the Netscape browser client, responsible for talking to remote servers, and the Netscape web server 4.x, which in turn handled the duty of talking to a client. Support for multithreading was absent, and the Proxy server operated in multi-process mode where each request was handled by a dedicated process.
Sun Java System Web Proxy server 4.0 resulted from a major rewrite of Netscape Proxy Server in 2003-2004, when Sun decided to reinvest in Proxy technology. Switching to Sun web server 6.1's core architecture brought in support for multi-threading while still allowing users to configure the server for multiple processes when so desired. A brand new http client, admin and installer GUI, and localization were the other major changes involved. 4.0 retained other significant features of 3.x such as the ftp client, gopher client, connect client, batch updates, and so on.
After acquisition of Sun Microsystems by Oracle Corporation in 2010, Sun Java System Web Proxy Server 4.0 was rebranded as Oracle iPlanet Web Proxy Server 4.0.
|Optional support for a Multi-process architecture|
|The following protocol clients are available:
|Batch updates ('Prefetch' or 'data refresh')
|SSL support for secure access
|Routing / Load balancing|
|SOCKS v5 support
|GUI-based Administration interface for server management, monitoring and migration
|SNMP for Server monitoring
|LDAP support for centralized authentication management
|Netscape Server Application Programming Interface for customization|
|Multilevel logging with support for log rotation, log monitoring and analysis|
|Internet Content Adaptation Protocol (ICAP)
Note1: Officially unsupported Note2: Undocumented Note3: Disabled by default
Recently added features
|Internal DNS lookup client|
|Support for (Squid-like) PURGE requests|
|SED filter for HTTP request/response body rewriting|
|In-memory cache for frequently used cache files|
|Telemetry / Service Tags support|
|Support for stale-while-revalidate cache-control extension|
Currently supported platforms:
|Oracle Solaris 10 for SPARC and x86|
|Red Hat Enterprise Linux Advanced Server 4|
|Red Hat Enterprise Linux Advanced Server 5|
|Oracle Linux 4|
|Oracle Linux 5|
|SUSE Linux Enterprise Server 10|
|Microsoft Windows Server 2003|
|Microsoft Windows Server 2003 R2|
|Microsoft Windows Server 2008|
Version 4.0.16 deprecated support for the following platforms:
|Sun Solaris 8 for SPARC|
|Sun Solaris 9 for SPARC and x86|
|HP-UX 11i (11.11)|
|Red Hat Enterprise Linux Advanced Server 3|
|Microsoft Windows 2000 Server|
|Microsoft Windows 2000 Advanced Server|
Product updates as Oracle iPlanet Web Proxy Server
4.0.14 was the first release with Oracle-specific rebranding changes.
As of April 2013:
4.0.19 is the latest stable version suitable for new installations.
4.0.24 is the latest patch available.
Oracle iPlanet Web Proxy Server 4.0 now supports the following new features:
|Support for Proxying of NTLM sessions|
|Enhanced platform support, including SUSE Linux|
|Include file capability in server's obj.conf|
|Routing-related admin GUI enhancements|
|Miscellaneous performance enhancements|
|Improved HTTP compliance|
|Cookie rewriting features in updated "URL Mapping" functionality|
|date/time parameter support in <Client> tags|
|Miscellaneous GUI enhancements for server monitoring, ACL subsystem, etc.|
|Multiple new configuration parameters for http client's channel handling|
More information on new features, platforms support, and resolved issues can be found in the product release notes 
ICAP (Internet Content Adaptation Protocol) Support
While Oracle iPlanet Proxy Server 4.0.17 does not provide official ICAP support yet, version 4.0.17 is capable of talking to ICAP servers.
Official support may be added in a future release, subject to market demand and business justification.