Port function and scanning

Dear Group,

Having recently had troubles with intrusion into my PC I have contacted this group and received a great response.

May I aks for further help. I would like to get answers to the following questions:

1. Is there a good internet document describing ports, their function and role, particularly for the windows OS?

1. Are there trustworthy port scanning services available? Is for example
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   of them?

Thank you GR.

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Posted 5 years ago by NoSpam in Networking Firewalls

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