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Enquiry about security for ports?

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2 replies to this topic

#1 oem7110


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Posted 04 April 2014 - 04:08 PM

I would like to know which port is safe to be opened by ISP.



For given ports, it has been used for connections by ISP, when I use following commands, it shows connections existed with given ports

netstat -oan

How do I know which ports must be opened for accessing internet?

Would it be possible to close any unnecessary ports if it does not required to be opened?

Does anyone have any suggestions?

Thanks you very much for any suggestions

Edited by hamluis, 04 April 2014 - 05:24 PM.
Moved from XP to Networking - Hamluis.

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#2 SamX5


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Posted 05 April 2014 - 06:37 AM

Hay oem7110, have a read of this

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#3 Kilroy


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Posted 07 April 2014 - 11:45 AM

Accessing the Internet isn't what you're doing looking at that port list.


The 2300 ports, from the link provided by SamX5 are for Microsoft DirectX, must likely used for gaming.  None of the ports you have listed are used for normal Internet browser traffic, but may be required for what you are using.

Edited by RKilroy, 07 April 2014 - 11:45 AM.

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