RE: Verify network connection from i

Quick and dirty java method - Put this in a file named PortScanner.java
on the IFS somewhere.

import java.net.*;

public class PortScanner {
public static void main(String []args) {
for (int port = 1; port <= 65535; port++) {
try {
Socket socket = new Socket();
socket.connect(new InetSocketAddress(args[0], port), 1000);
socket.close();
System.out.println("Port " + port + " is open");
} catch (Exception ex) {
}
}
}
}

Then
strqsh
cd /your/folder/on/the/ifs
javac PortScanner.java
java -cp . PortScanner xxx.xxx.xxx.xxx

Next time you can skip the javac piece and just get into the directory
and run it.

Kevin Bucknum
Senior Programmer Analyst
MEDDATA/MEDTRON
Tel: 985-893-2550

-----Original Message-----

From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of David Gibbs
Sent: Tuesday, August 21, 2018 11:01 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Verify network connection from i

Folks:

This may sound like a dumb question, but what tool or technique do you

use

to verify a network connection to another system (internal or

external)?

Yes, PING & TRACEROUTE are the obvious answers ... but, in my case,

ping &

traceroute are (for whatever reason) blocked (both from the i and my
workstation).

I've tried using wget in qshell (and qp2term), but I get a connection

refused

error.

Using wget I am able to retrieve the default index page from an IIS

instance

I'm running on my workstation (which is in the same physical network

as the

i).

Any ideas?

Thanks!

david

--
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