Create a TCP/IP Connection


 
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# 43  
Old 05-21-2008
So do you get anything in Apache's logs?
# 44  
Old 05-21-2008
where on the web server do I actually find these logs?

Regards,
Garric
# 45  
Old 05-21-2008
The configuration depends a lot on how you installed Apache. On Linux you would commonly find the logs in /var/log/apache but there are many variations; many sites want one log per domain name, each in the domain owner's home directory, so that's a common configuration also. Look in httpd.conf for the logging configuration.
# 46  
Old 05-21-2008
I looked into error_log but found nothing. I am not sure if this client code is fine

Code:
#!/usr/bin/perl

use IO::Socket;

if (@ARGV < 1) { print "usage: perl send_to_server.pl [host]\n"; exit; }
$host = $ARGV[0];

$var = IO::Socket::INET->new( PeerAddr=>"$host",
                              PeerPort=>"80",
                              Proto=>"tcp") || die " $! Connection failed.";

print $var "GET cgi-bin/server_code.pl?data=abc HTTP/1.0\r\n\r\n";

and then i run it like this
#>./clientCode.pl <web server>

How can I be sure if the server code is running when called here.
# 47  
Old 05-22-2008
First, test that the client connects correctly. Run netcat on a random port on the server and change the client to connect to that port (let's say 4343 again for old times' sake).

For debugging, you might want to change the client code to die with a diagnostic if print fails, and also add a close and die if that fails.

On the server, make a debugging version of the CGI which prints something useful to standard output as well (which will be served up back to the connecting client), so you can see that it runs. Connect to it with your browser and check that you get the results you expect.
# 48  
Old 05-23-2008
the simple example works fine .. like this


Client

Code:
#!/usr/bin/perl

use IO::Socket;
if (@ARGV < 1) { print "usage: perl send_to_server.pl [host]\n"; exit; }
$host = $ARGV[0];

$var = IO::Socket::INET->new( PeerAddr=>"$host",
                              PeerPort=>"4343",
                              Proto=>"tcp") || die " $! Connection failed.";

print $var "\n Wazza \n";
#print $var "GET /cgi-bin/server_code.pl?data=abc HTTP/1.0\r\n\r\n";

#> ./clientCode.pl <web_server>

Server

> netcat -l -p 4343

Wazza



So, can you check again if its with the line that we are printing into port 80?

Last edited by garric; 05-23-2008 at 03:56 AM..
# 49  
Old 05-23-2008
I'm sorry, I don't understand the question. You have Apache up and running? You have some basic demo CGI up and running? There are a few which ship with Apache. Or pull something from one of those "become a CGI guru in 21 minutes" web sites.
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