Summary

Network services provide essential functions that let devices communicate and apps work over a network. Remember that network_services run as server_processes, use well_known_ports, and follow specific protocols. Key examples include domain_name_system (names to IPs), dynamic_host_configuration_protocol (IP leasing), hypertext_transfer_protocol/hypertext_transfer_protocol_secure (web), simple_mail_transfer_protocol with internet_message_access_protocol or post_office_protocol (email), file_transfer_protocol/secure_file_transfer_protocol (files), secure_shell (remote access), and network_time_protocol (time sync). Clients reach the right service using IP and port in a client_server_model.