
Simple Network Management Protocol Trap (SNMPTRAP) Simple Network Management Protocol (SNMP) Internet Message Access Protocol (IMAP) - management of email messagesīackground File Transfer Program (BFTP) Microsoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service, used to remotely manage services including DHCP server, DNS server and WINS. Network Time Protocol (NTP)-used for time synchronization Network News Transfer Protocol (NNTP) - retrieval of newsgroup messages Ident-user identification system, used by IRC servers to identify users ISO-TSAP (Transport Service Access Point) Class 0 protocolĪCR/NEMA Digital Imaging and Communications in Medicine XNS (Xerox Network Systems) Authenticationīootstrap Protocol (BOOTP) Server also used by Dynamic Host Configuration Protocol (DHCP)īootstrap Protocol (BOOTP) Client also used by Dynamic Host Configuration Protocol (DHCP)ĭnsix (DoD Network Security for Information Exchange) Securit Attribute Token Map

XNS (Xerox Network Systems) Clearinghouse XNS (Xerox Network Systems) Time Protocol Nameserver, ARPA Host Name Server Protocol Resource Location Protocol (RLP)-used for determining the location of higher level services from hosts on a network


Remote File (RF)-used to transfer files between machines Simple Mail Transfer Protocol (SMTP)-used for e-mail routing between mail servers Telnet protocol-unencrypted text communications Secure Shell (SSH)-used for secure logins, file transfers (scp, sftp) and port forwarding
