An individual can connect to a remote server from any browser. For an an individual to be able eliminate the need to open a dedicated TCP port on your corporate firewall when using Mac computers to share screens from the local and remote computers, one must use a third-party remote access app that uses a browser.
Ports that has number below 255 are used as dedicated ports. Dedicated ports are said to be well-known ports. It is a way to transmit data in a TCP/IP network
TCP is simply defined as a connection-oriented protocol that needs a link or a circuit between the source sending computer and the destination computer.
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