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Josh5805's profile

Visitor

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2 Messages

Thursday, June 4th, 2015 2:00 PM

Closing port 23

We are a liquor store and  accept credit cards on a POS system. We are subject to something called PCI compliance audits every 30 days.  Part of the audit requires a port scan of our IP address from an external site for potential vulnerability. 

 

We have been failing audits because Port 23 (telnet) is open on our SMCD3G modem.  I have set blocking rules but the port remains open.  I'm being fined monthy for failing the audit so any help you can give would be greatly appreciated.

 

Thank you.

Advocate

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1.4K Messages

10 years ago

Hello Josh5805 and welcome,

 

The PCI Compliance is on your POS system(s). You must make sure that telnet port 23 feature/function is disable within your POS system. The Comcast Gateways are not PCI Compliant, but ports can be disabled or turned off.

 

Hope this helps you out.

Visitor

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2 Messages

10 years ago

How do I disable incoming traffic on Port 23?  I've blocked outgoing traffic already.