?
Solved

Need to create a program to test for open TCP ports

Posted on 2012-03-16
6
Medium Priority
?
312 Views
Last Modified: 2012-03-22
I have a need for a port testing tool that I can program to to read and send from one node to another in a network. I know there may be tools that could do this for me, but I want flexibility of changing the functionality as the need arises. My preferred language is Java because I would like to run on both windows and Linux.

Here is what I would like the tool to do:

listen on a specified range of ports for a known message and when we receive that message, close that port.

Similarly, I want the program to write a message to a specified set of ports.

After all ports are verified or after a specified timeout, the program should spit out a report (I can handle this part).

As a follow up question once I have the program working, I want to set it up to use secure protocol as an option.
0
Comment
Question by:Christopher Schene
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 2000 total points
ID: 37732559
This is a good framework to get you started. I also have an https version


http://technojeeves.com/joomla/index.php/free/84-server-by-david-flanagan
0
 

Author Comment

by:Christopher Schene
ID: 37732731
Looks pretty good I'll try this. I'll ask for the http version in a separate question so you get another 500 points
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 37732734
No - don't worry about the points thanks
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:Christopher Schene
ID: 37733705
What is the purpose of these lines in the example code?  I have taken a java class, but most of my programming is in C, C#, Vb.net---I am not familiar with the Hash templates

threadGroup = new ThreadGroup(Server.class.getName());
      this.maxConnections = maxConnections;
      services = new HashMap<Integer, Listener>();
      connections = new HashSet<Connection>(maxConnections);

It looks like a good book...I think I'll buy it.
0
 

Author Closing Comment

by:Christopher Schene
ID: 37755036
I purchased the book as well. Thanks!
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 37755100
What is the purpose of these lines in the example code?

There's quite a bit there - which part of that do you mean?

I purchased the book as well. Thanks!

That's a good investment!
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Network ports are the threads that hold network communication together. They are an essential part of networking that can be easily ignore or misunderstood, my goals is to show those who don't have a strong network foundation how network ports opera…
Creating an OSPF network that automatically (dynamically) reroutes network traffic over other connections to prevent network downtime.
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
The viewer will learn how to implement Singleton Design Pattern in Java.
Suggested Courses
Course of the Month14 days, 23 hours left to enroll

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question