Cesard, Patrick O. wrote:
The -2 <filename> option on the command line of selfserv:
What use case is the fdx connection addressing? It looks like it's dealing
with reading and writing a big file?
As you know, SSL is very commonly used with HTTP, and HTTP is a half-duplex
(HDX, two way alternate) protocol. But the SSL protocol itself is not
limited to being used only with half-duplex appliction protocols.
SSL will also work with full-duplex (FDX, two way simultaneous) application protocols.
One minor correction, HTTP is not always half-duplex.
HTTP/1.1 is a full-duplex protocol when chunked-encoding is used in both directions to stream. Ie. a client can POST variable-length data with chunked-encoding, and a server can respond with variable-length data with chunked-encoding. This allows HTTP to be used for things like tunneling, video applications, etc. Netscape Enterprise Server/iPlanet Web Server/Sun ONE Web Server 6.x support this feature.
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