[1] : The Free On-line Dictionary of Computing (27 SEP 03)

common gateway interface
     
         cgi a standard for running external
        programs from a world-wide web http server.  cgi
        specifies how to pass arguments to the executing program as
        part of the http request.  it also defines a set of
        environment variables.  commonly, the program will generate
        some html which will be passed back to the browser but it
        can also request url redirection.
     
        cgi allows the returned html or other document type to
        depend in any arbitrary way on the request.  the cgi program
        can, for example, access information in a database and
        format the results as html.  a cgi program can be any program
        which can accept command line arguments.  perl is a common
        choice for writing cgi scripts.  some http servers require
        cgi programs to reside in a special directory, often
        "/cgi-bin" but better servers provide ways to distinguish cgi
        programs so they can be kept in the same directories as the
        html files to which they are related.
     
        whenever the server receives a cgi execution request it
        creates a new process to run the external program.  if the
        process fails to terminate for some reason, or if requests are
        received faster than the server can respond to them, the
        server may become swamped with processes.
     
        in order to improve performance, netscape devised nsapi
        and microsoft developed the isapi standard which allow
        cgi-like tasks to run as part of the main server process, thus
        avoiding the overhead of creating a new process to handle each
        cgi invocation.
     
        current version: 1.1.
     
        ncsa http://hoohoo.ncsa.uiuc.edu/cgi.
     
        2002-06-03
     
     
see also:
standard programs world-wide web http server arguments 
environment variables html browser url redirection database 
perl http servers netscape nsapi microsoft 
isapi lt;ncsagt; 

Common Gateway >> C Words
Common Gateway, definition of term: Common Gateway
common+gateway_pag1.html

Common >> C Words
Common, definition of term: Common
common_pag1.html

Common Noun >> C Words
Common Noun, definition of term: Common Noun
common+noun_pag1.html

Common Multiple >> C Words
Common Multiple, definition of term: Common Multiple
common+multiple_pag1.html

Common Market >> C Words
Common Market, definition of term: Common Market
common+market_pag1.html

Common Meter >> C Words
Common Meter, definition of term: Common Meter
common+meter_pag1.html

Common Rail >> C Words
Common Rail, definition of term: Common Rail
common+rail_pag1.html

Common School >> C Words
Common School, definition of term: Common School
common+school_pag1.html

Common Time >> C Words
Common Time, definition of term: Common Time
common+time_pag1.html

Common Stock >> C Words
Common Stock, definition of term: Common Stock
common+stock_pag1.html

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