TCP/IP Protocols

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TCP/IP Application Protocols

Simple Network Management Protocol (SNMP): allows network administrators to collect information about the network. Each piece of info to be collected is defined in a Management Information Base (MIB). SNMP uses UDP.

File Transfer Protocol (FTP): single/multiple file transfers between computer systems, Uses TCP to actually move the files.

Trivial File Transfer Protocol (TFTP): "Stripped down" version of FTP, used to boot diskless workstations and transfer boot images to and from routers. Uses UDP rather than TCP (fast connections/no reliability).

Secure File Transfer Protocol (SFTP): Used when transferring files over an encrypted connection (uses SSH session).

Simple Mail Transfer Protocol (SMTP): allows for simple email service, moves messages from one email server to another.

Post Office Protocol (POP): provides storage mechanism for incoming emails, all messages downloaded (can't download selectively), delete/modify without interaction with server.

Internet Message Access Protocol (IMAP): download mail selectively, look at message header, download part of a message, search commands available, strong authentication (supports Kerberos)

Line Printer Daemon (LDP): resides on network printer/print server and responds to TCP/IP printing requests from the printing clients (LPR clients).

Network File System (NFS): allow shared file systems on UNIX servers to appear as local file systems on UNIX clients

Telnet: Terminal emulation protocol, remote logon

Secure Shell (SSH): establish a secure Telnet session, run programs on remote systems, maintain strong encrypted connection.

Hyptertext Transfer Protocol (HTTP): manages communication between web browser/server.

Hypertext Transfer Protocol Secure (HTTPS): sign, authenticate, and encrypt HTTP message.

Network Time Protocol (NTP): synchronize (set) computer clocks to a standard time zone.

Network News Transfer Protocol (NNTP): access Usenet news servers (newsgroups)

Secure Copy Protocol (SCP): Uses SSH to establish and maintain an encrypted login, then file transfer

Lightweight Directory Access Protocol (LDAP): standard method of accessing directories, perform object lookups

Internet Group Management Protocol (IGMP): manage multicast sessions, which hosts belong to which groups

Line Printer Remote (LPR): printing client that sends the print jobs to the LPD

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