I am new at this and could use some assistance. I have read there are some
65,535 ports in tcp/ip, but have been unable to find anything which
explains this. For instance, port 139 is ascribed by the tcp/ip protocol to
net bios, but beyond that, I have found no further explanation. Does this
port refer to a memory address on the receiving computer, or is it just
some sort of sub-address. Where I am lost is when one claims that a certain
port is "open" on a particular computer, what does that mean? I would
greatly appreciate some help so I can be pointed in the right direction
for further study. Thank you.
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