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Computer ports like 22, 25, 80, 443 and 3306, are they of the motherboard or of the operating system?
As far as I know as of 2018 some of the 65535 available ports has at least one of what's called a "port proto"; I know 2 such protocols; TCP and UDP, while TCP is the mainly used one.
If I'm not ...
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what is the network bandwidth of a virtual nic?
I am trying to do communication between two VMs hosted on one server. I want to know what is the maximum bandwidth capacity of virtual nics ? I am using virtual machine manager.