HP NonStop SSL Reference Manual Introduction • 9
Introduction
What is the Purpose of HP NonStop SSL?
HP NonStop SSL provides encryption of data which is sent or received by programs on HP NonStop servers over
TCP/IP. It adds transport layer security to TCP/IP protocols without built-in support of SSL/TLS on HP NonStop, such
as Telnet, FTP or ODBC.
HP NonStop SSL will run as a proxy server supporting the following modes of operation:
• [TELNETS] Acting as a secure proxy server for the NonStop TELSERV, to secure the communication between
the NonStop system and a telnet client with built-in SSL, such as comForte's MR-Win6530, Crystal Point's
OutsideView or Cail CTT.
• [PROXYS] Acting as a secure proxy server for plain TCP/IP servers acting as Server Gateways for
Client/Server-Middleware, such as the HP NonStop RSC product, to secure the communication between the HP
NonStop system and a client in conjunction with the RemoteProxy component included with HP NonStop SSL.
Note: The usage of the NonStop SSL RemoteProxy component is supported for selected HP NonStop products
only, including HP NonStop Remote Server Call (RSC/MP) and HP NonStop ODBC/MX.
Further note that the NonStop RemoteProxy component does not support being run as a Microsoft Windows
service.
• [PROXYC] Acting as a client proxy for plain TCP/IP client programs, to secure the communication between
the NonStop Server and remote SSL-enabled server programs.
• [FTPS] Acting as a secure proxy server for plain FTP servers, such as the NonStop FTPSERV, to secure the
communication between the NonStop system and a secure FTP client, such as MR-Win6530 or WS_FTP.
• [FTPC] Acting as a client proxy for the NonStop FTP client program, to secure the communication between the
NonStop system and a SSL-enabled FTP server, such as the WS_FTP Server.
• [EXPANDS] Creating an SSL tunnel to secure EXPAND over IP lines.
• [ODBCMXS] Acting as a secure server proxy for the ODBC/MX protocol.
To support the above functions, HP NonStop SSL proxy processes can be started in different modes. These so-called
"run modes" of a HP NonStop SSL proxy are listed in square brackets in the list above. Multiple HP NonStop SSL proxy
processes can co-exist on a single NonStop system to support concurrent proxy services, as well as multiple TCP/IP
processes.
The following table lists all run modes of a HP NonStop SSL proxy:
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