Glossary Term
getservbyname()
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getservbyname() — Get port number associated with an Internet service and protocol.
getservbyname returns the Internet port which corresponds to service for the specified protocol as per /etc/services.
Inputs: service: The Internet service name, as a string. protocol: protocol is either “tcp” or “udp” (in lowercase).
Returns: Returns the port number, or false if service or protocol is not found.
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