Solved

Tools to check port status and what ports are open on a remote web server.

Posted on 2006-11-16
4
11,621 Views
Last Modified: 2012-06-21
Hi Experts,

Are there any free tools or is there a way to check if a port is open/closed.  I have a virtual server with a hosting company which uses Plesk for administering the server.  I've opened ports 1935 and 1936 for in/out traffic to support a certain program.  How can I check the status on those ports?  I've used "iptables -L OUTPUT" and "iptables -L INPUT" and they both list the ports.  I can't use the commands "port" or "mem" because they are blocked/disabled on the virtual server.

The problem is that the technician that is istalling the program which requires those two ports, claims that the ports are not open and that the he can finish the installation untill those ports are open and functioning properly.

How can I test those ports to prove to myself and the tech that the port setup is okay.

Thanks,
Kate
0
Comment
Question by:kasiencja
[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
  • 2
4 Comments
 
LVL 26

Accepted Solution

by:
jar3817 earned 500 total points
ID: 17958238
netstat is the command you're looking for.

netstat -ap

That'll show you what ports are open/listening/estabolished and what processes are associated with them.
0
 
LVL 43

Expert Comment

by:ravenpl
ID: 17958291
For remote check use nmap tool. http://insecure.org/nmap/man/
For local ports: netstat -ltupn # omit 'n' to see port names instead of numbers
0
 

Author Comment

by:kasiencja
ID: 17958353
Oops, sorry ravenpl, is there a way I can still split the points.
0
 
LVL 43

Expert Comment

by:ravenpl
ID: 17958492
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

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

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

696 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