Not all of the functionality of [Sun Java System Web Server 7.0|http://www.sun.com/webserver/] has been open sourced as part of the Open Web Server project. The following table compares the features of Open Web Server (OWS) and Sun Java System Web Server (SJSWS).
|| Feature || OWS || SJSWS ||
| *Multi-threaded server core* | X | X |
| *Server virtualization* | X | X |
| *HTTP 1.0/1.1* | X | X |
| *On-the-fly response compression* | X | X |
| *Ordered Input/Output filters* | X | X |
| {{sed}} *Input/Output filters* | X | X |
| *SSL* | X | X |
| *Elliptic Curve Cryptography (ECC)* | X | X |
| *Administration GUI* | | X |
| *Administration CLI* | | X |
| *Administration CLI* ({{start/stop/reconfig/restart}}) | X | X |
| *Installer* | | X |
| *Native Monitoring* | X | X |
| *Simple Network Management Protocol (SNMP)* | | X |
| *High-performance file cache (NSFC)* | X | X |
| *CGI/FastCGI* | X | X |
| *SHTML* | X | X |
| {{.htaccess}} *files* | X | X |
| *Access Control Lists (ACL)* | X | X |
| *LDAP/LDAPS* | X | X |
| *Integrated HTTP Reverse Proxy* | X | X |
| *URL Redirection and Rewriting with Regular Expressions* | X | X |
| *Variables, Expressions and String Interpolation in Configuration Files* | X | X |
| *Support for Dynamic Java content (JSP/ Servlet/ JSF/ JSTL/ JNDI/ JDBC/ JWSDP)* | | X |
| *Lightweight Java Session Replication* | | X |
| *WebDAV* | | X |
| *Search* | | X |
| *NetBeans support* | | X |
| *Localization support (l10n and i18n)* | X | X |
| *NSAPI (native API)* | X | X |
|| Feature || OWS || SJSWS ||
| *Multi-threaded server core* | X | X |
| *Server virtualization* | X | X |
| *HTTP 1.0/1.1* | X | X |
| *On-the-fly response compression* | X | X |
| *Ordered Input/Output filters* | X | X |
| {{sed}} *Input/Output filters* | X | X |
| *SSL* | X | X |
| *Elliptic Curve Cryptography (ECC)* | X | X |
| *Administration GUI* | | X |
| *Administration CLI* | | X |
| *Administration CLI* ({{start/stop/reconfig/restart}}) | X | X |
| *Installer* | | X |
| *Native Monitoring* | X | X |
| *Simple Network Management Protocol (SNMP)* | | X |
| *High-performance file cache (NSFC)* | X | X |
| *CGI/FastCGI* | X | X |
| *SHTML* | X | X |
| {{.htaccess}} *files* | X | X |
| *Access Control Lists (ACL)* | X | X |
| *LDAP/LDAPS* | X | X |
| *Integrated HTTP Reverse Proxy* | X | X |
| *URL Redirection and Rewriting with Regular Expressions* | X | X |
| *Variables, Expressions and String Interpolation in Configuration Files* | X | X |
| *Support for Dynamic Java content (JSP/ Servlet/ JSF/ JSTL/ JNDI/ JDBC/ JWSDP)* | | X |
| *Lightweight Java Session Replication* | | X |
| *WebDAV* | | X |
| *Search* | | X |
| *NetBeans support* | | X |
| *Localization support (l10n and i18n)* | X | X |
| *NSAPI (native API)* | X | X |