20 Apr 1999. Josef Bujok (josef.bujok@trz.cz)

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  TCP/IP Portscanner - Scans well known TCP/IP ports of one server for active services.
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Installation:
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First, you should unzip the PORTSCAN.ZIP file to an empty, temporary directory.

PortScan comes in two flavors  -- as an addon for the SRE-http web server, 
or as a generic CGI-BIN script for any CGI compliant OS/2 web server.

To install as an SRE-http addon, you'll need  to copy the following files:
   PORTSCN.CMD  -  the SRE-http addon.  Copy it to the GoServe/SRE addon directory'
   PORTSCN.HTML -  html front-end for PORTSCN.CMD

To install as a CGI-BIN script:
    PORTSCN1.CMD  - the CGI rexx script, copy it into your server's CGI-BIN directory
    PORTSCN1.HTML - html front-end for PORTSCN1


Usage:
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   Request either PORTSCN.HTML (or PORTSCN1.HTML),  enter a valid IP address 
   in the single entry field, and then hit the SUBMIT button. Currently,
   the SRE-http version will accept either a numeric address, or a name;
   the CGI version requires a numeric address.

   PORTSCN (or PORTSCN1) will query this server for a number of different services, and
   report them to you. For example, it will detect FTP, Telnet, and WWW services (each
   using a unique port).

    

Requirements:
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   1 - RXSCOCK.DLL and RXFTP.DLL must both be in the OS/2 LIBPATH (for example, in
       C:\OS2\DLL).  For your convenience, copies of these files are included in
       PORTSCAN.ZIP
   2 - A useable SERVICES file must be stored in ETC directory of the web server.

Disclaimer:
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I have tested this utilities on WARP 4 with TCPIP V4.0.
This is freeware; with the standard "use at your own risk"