Link to home
Start Free TrialLog in
Avatar of Dan
DanFlag for United States of America

asked on

looking for port scanner to scan outside IP addresses for open ports

Hi, I'm looking for a port scanner to scan outside IP addresses for open ports.  I need to go PCI (something to do with taking credit cards) compliant on a few of my sites and this seems to be the first step.

I have found some online that scan a single or small range, but I was looking for a local program that could scan a full range.

It dosen't need to be free, but hopefully not break the bank like GFI.

Thanks all.
Avatar of motnahp00
Flag of United States of America image

Look into Qualys to meet your PCI compliance needs.
Avatar of Dan


do they have a downloadable program, or just through their browser?
It's an actual physical appliance on the network which is accessible through a browser.
Avatar of Cyclops3590
Flag of United States of America image

Link to home
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
really, the only requirement is to have an external account - so, any home ADSL will do - and run nmap, or something larger (such as openvas/nessus) that includes nmap.

nmap 6 just came out too, with full ipv6 support :)
Avatar of HansBrink

I would do this to see if my ports are open.

Scans some of the ports used similar. 

Just type

Scan:***.***.***.*** Then it will scan ports from the outside.

Telnet on the port.
Telnet ***.***.***.*** 25

If it could help you to your answer.
There are a wealth of free linux tools out there: - the catagory killer for port scanners - mostly-commerical vuln scanner, used to be completely free until they got sick of big-name scanning companies piggybacking on their work to sell commercial scanners with their libraries ebeddeed :( - attempt to produce a opensource replacement for nessus, partly successful.

Now, if you want a quick look, it might be worth taking these people up on their one-week trial deal:

for £1 (less than $2) you get a week's use of a virtual linux box, which can run a gui and the above tools, and if you decide to keep it, its £10/month thereafter.
Avatar of Dan


Thanks all, Net Tools did it, downloadable, scans ports and more.

It really does allot, but to do the port scan do the following.

Start – Net Tools Mini – scan tab – enter IP then 1-1028 (or whatever range)