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Homework and Emergencies Emergency UNIX and Linux Support Netcat ( nc -l ) as webserver Post 302987765 by chakrapani on Thursday 15th of December 2016 10:46:38 AM
Old 12-15-2016
I made a named pipe and seems very close to getting my solution of garbing HTTP headers, Also noticed my browser does not Always send all the header each time.
(Chrome Version 54.0.2840.99 even in incognito )

My workaround (not solution) have a named pipe to communicated with nc.

Code:
$ mkfifo  webout

and then have the while loop to feed netcat(nc)

Code:
while true; do { echo -e 'HTTP/1.0 200 OK\r\n'; cat webout;  } | nc -vl 8080 >webout; done

I am just playing around with named pipe, looking to find something in the lines of:

Code:
nc -l PORT <webin > 2&1>webout

and then loop out with tail kind of thing on webin and webout. Any experts on FIFO's please suggest.

Last edited by chakrapani; 12-15-2016 at 11:50 AM.. Reason: typo
 

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BBMESSAGE.CGI(8)					      System Manager's Manual						  BBMESSAGE.CGI(8)

NAME
bbmessage.cgi - CGI utility used for proxying Xymon data over HTTP SYNOPSIS
bbmessage.cgi DESCRIPTION
bbmessage.cgi(8) is the server-side utility receiving Xymon messages sent by the bb(1) utility over an HTTP transport. The bb utility nor- mally sends data over a dedicated TCP protocol, but it may use HTTP to go through proxies or through restrictive firewalls. In that case, the webserver must have this CGI utility installed, which takes care of receiving the message via HTTP, and forwards it to a local Xymon server through the normal Xymon transport. The CGI expects to be invoked from an HTTP "POST" request, with the POST-data being the status-message. bbmessage.cgi simply collects all of the POST data, and send it off as a message to the Xymon daemon running on IP 127.0.0.1. This destination IP currently cannot be changed. The CGI will return any output provided by the Xymon daemon back to the requestor as the response to the HTTP POST, so this allows for all normal Xymon commands to work. SECURITY
bbmesage.cgi will only send data to a Xymon server through the loopback interface, i.e. IP-address 127.0.0.1. Access to the CGI should be restricted through webserver access controls, since the CGI provides no authentication at all to validate incoming messages. If possible, consider using the bbproxy(8) utility instead for native proxying of Xymon data between networks. SEE ALSO
bb(1), bbproxy(8), xymon(7) Xymon Version 4.2.3: 4 Feb 2009 BBMESSAGE.CGI(8)
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