Port scan

Norton Security | Norton Internet Security
1

I recently had someone scan me for open ports.  And I'm wondering why NIS10 doesn't block these ports.  Check the logs.

2

Welcome to the Norton Community

 

Elias wrote:

hi!!

I got Norton internet security 2008 and updated it to 2009

got a problem with port scan!

I got yesterday a few times a message port scan was blocked by NIS.

 

When I check the Security history I saw some warnings of

unauthorized access logs (access to process data) and that the router's system adapter has disappear and the IP address is no longer protected.
And also got some UDP packages allowed through some ports is this usual?
I have run full system scan and didn't find anything
are these things linked that someone have hacked me?
PS/ Im not so good on computers

The message regarding the adapter "disappearing" is normal on wireless systems. As long as NIS is showing that it has blocked things and that your scans come up clean then you have nothing to worry about.

 

It would be worthwhile you updating further to NIS 2010 which you can do for free from this link

 

www.symantec.com/nuc

 

 

Message Edited by mdturner on 17-10-2009 12:20 PM
3

Yes, I would agree with mdturner that you Upgrade to the N.I.S. 2010 Version; if you have an Identity Safe Profile, please Remove your Norton 2009 Product > Custom Uninstall as this will Save all your Settings, including your Identity Safe.  You should then use the Norton Removal Tool to get all the Files that the "Add or Remove Program" missed.  And, finally, once your computer has Re-Started, Download and Install N.I.S. 2010.  Just be sure to Save your Product Key to your Norton Account; if you do not have already have a Norton Account, please create one by Clicking on the "Norton Account" at the top of the Main User Interface of your Norton 2009 Product.  If you do not have an Identity Safe Profile, then you can just head right to the Norton Update Center and Download and Install N.I.S. 2010.

 

If you have any questions or concerns, please do let us know.

 

And Welcome to the Norton Community.

 

4

I recently had someone scan me for open ports.  And I'm wondering why NIS10 doesn't block these ports.  Check the logs.

5

So it does not actually detect the capability of NIS10 firewall blocking.

6
Wikipedian wrote:

So it does not actually detect the capability of NIS10 firewall blocking.

That is correct.  The router sits on the internet at the public IP address assigned to you by your ISP.  The Norton Firewall lives on your computer, which sits at a private IP address usually assigned to it by the router.  The address being scanned is the router's.  Your computer is shielded from these scans by the router.

7

Just to be a little more technically correct, it’s the NAT feature of the router that SendOfJive is talking about. Routers exist throughout the Internet and are required to move all traffic through the Internet. The NAT feature of many home routers leaves only the router’s IP address exposed, hiding the machines behind its’ address from view via a form of port mapping.