I have received a report from a business security check which states that Port 515 is open, in order to gain sceurity clearance and carry on with normal business I have been instructed to block this port. Can someone please help with this. I am running Windows XP with NIS installed.
Do you have Windows XP Service Pack 3 installed on your computer? Please tell us know which version of NIS you have? You can check the version by opening up the NIS program>selecting Support (Help & Support in some versions) the going to About; the version number will be listed there.
Can you please tell us what router you have (who manufactured it and model number) as this will provide some extra insight as to whether or not some settings may need adjusted on the router. Also are you using a printer connected to the router?
My home is my work location. I am running a router with 2 PC's connected to it, both are a wired connection, The printer port is reported by the security scan as being open to the internet through port 515, I want to close port 515 so access cannot be made through it.
*Please note that you'll want to right-click the provided link above and select the option to open it up in either a new window or a new tab; otherwise you may leave this forum site.
Once there click on the Proceed button (in FireFox you'll get a dialog box in which you'll need to click Continue) an on the next page select the option All Service Ports this will begin the test scan. Perform this once with your computer accessing the internet through the router and once with the computer directly connected to your broadband modem via the network cable. At the end of each Click the link Text Summary copy the summary information from the website and paste into a word processing program like Wordpad, be sure to save each with the name of how the test was conducted (i.e.; test done through router or test done with computer directly connected to the internet). Be sure to add the .txt at the end of the filename so that it can be uploaded without any issues. Save the files to a location that's easy for you to access. Use the link on the Reply area of this thread under Attachments (Browse) to attach the files you created; this will help identify what all needs adjusted to stealth the port in question.
Also tell us whether or not you have a networked printer, scanner or multi-function printer.
Thanks,
Tech83 :)
P.S. I'm including a scan result that I did for an example.
The router is a Belkin 10117 4 port router, the printer is connected to the PC via the non USB printer port. The PC is connected to the router - the router is connected to the internet through a cable modem
There are 2 printers connected to the PC, one is an all i one printer / scanner / copyier / connected by USB and a wide format printer connected by parralell cable.
Do you need access to the printer from the internet, or only from the PCs on your local network behind the router? I am guessing that Universal Plug n Play may be enabled in the router and that one of the printers has opened that port in the router for some reason. Norton would not be involved in any of this. The open port is in the router, so you need to make the configuration change in the router's settings. See if port 515 is listed in the port forwarding settings.
The router is a Belkin 10117 4 port router, the printer is connected to the PC via the non USB printer port. The PC is connected to the router - the router is connected to the internet through a cable modem
Thanks
Ron
Hi! Ron-ONeill,
Do you have the latest firmware installed for your Belkin router?
Many thanks for the reply, the printer does not need access to the internet, I cannot see anything anywhere in the Router settings to open or block ports. I just assumed that NIS would block all risks to the system.
My old ZyXel Prestige 660HW-61 router uses the firewall to block pings on the WAN and LAN (Firewall -> Anti Probing) as well controlling the direction of packets on the LAN and WAN (Firewall->Configure Default Policy).
In other words, you should be able to use the firewall of your router to block the ports of your choice.
Here is a screenshot showing how pings are handled:
I hope this helps. Thanks.
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Off-topic: I am hoping to replace this router later this year with a more modern version. Although it works perfectly, it's getting a little old.
I just assumed that NIS would block all risks to the system.
It does, but your system is behind a router and whoever is seeing that you have port 515 open is actually seeing the router, not your PC. So the port is open in the router and that is where you will have to make the configuration change. Consult your router documentation about disabling UPnP (to prevent programs from automatically and silently opening ports in the router) and how to manually open and close ports (Port Forwarding).