Consultor Eletrônico

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List of Protocols and Services

FIX:

While TCP, IP, and UDP provide transport and network services, many other protocols were added by the Internet community over the years, mostly at the applications level. These are listed next. Of course, hundreds of nonstandard services are also available. The protocols listed here are described in various Internet RFCs and many are described under their own heading.

Archie    
A utility for gathering and indexing files on the Internet.

ARP (Address Resolution Protocol)    
Dynamically maps Internet addresses to physical (hardware) addresses on local area networks.

BGP (Border Gateway Protocol)    
A routing protocol that is used to exchange route information between autonomous systems (i.e., service provider networks on the Internet).

DHCP (Dynamic Host Configuration Protocol)    
A protocol that dynamically assigns IP addresses to host devices when they connect to a network.

DNS (Domain Name System)    
A service that resolves easy-to-remember host names into IP addresses.

DNS (Domain Name System)   
A hierarchical name service that matches up Internet host names with IP addresses.

FTP (File Transfer Protocol)    
A utility for transferring files between hosts on the Internet or any TCP/IP network.

Gopher    
A tool for searching for and retrieving documents stored hierarchically on Internet hosts.

HTML (Hypertext Markup Language)    
The markup and tagging language used to create Web pages.

HTTP (HyperText Transfer Protocol)    
The file transfer protocol that is the basis of the World Wide Web.

ICMP (Internet Control Message Protocol)    
A diagnostics and error-reporting protocol used to handle errors and control messages at the IP layer.

IGMP (Internet Group Management Protocol)    
A protocol for managing multicast groups.

IMAP (Internet Message Access Protocol)    
An Internet e-mail post office protocol that expands on the features of POP.

IPSec (IP Security)    
A set of protocols that support secure and encrypted data exchange at the network layer. IPSec supports VPNs.

IRC (Internet Relay Chat)    
A multiuser chat system.

LDAP (Lightweight Directory Access Protocol)    
A set of protocols for accessing directory services and directory service databases.

Listserv    
An automated mailing list system that users can subscribe to. Mailing lists are available on a variety of topics.

MIME (Multipurpose Internet Mail Extensions)    
Provides a way to use different file formats in e-mail and other documents.

NFS (Network File System)    
A shared file system developed by Sun Microsystems.

NNTP (Network News Transfer Protocol)    
A protocol for managing and distributing news articles.

OSPF (Open Shortest Path First)    
Another routing protocol. OSPF is now used on the Internet while RIP is still used for many internal networks.

PING (Packet Internet Gopher)    
A tool for determining the reachability of a host. It sends a request to a specified host and waits for a response.

POP (Post Office Protocol)    
A protocol that stores mail for users on a server and forwards that mail to them when they log on.

PPP (Point-to-Point Protocol)    
A protocol for transmitting IP datagrams and other protocols over telephone links or serial lines.

RARP (Reverse Address Resolution Protocol)    
A diskless host uses this protocol to find its Internet address at startup.

RIP (Routing Information Protocol)    
A protocol that routers use to exchange routing information.

RSVP (Resource Reservation Protocol)     <b.r>
A protocol that allocates and reserves bandwidth across Internet links to support QoS.

RTP (Real-Time Protocol)
A protocol that optimizes the delivery of real-time data such as live and/or interactive audio and video.

SIP (Session Initiation Protocol)    
A signaling protocol used for setting up, maintaining, and terminating multimedia sessions.

S-HTTP (Secure HTTP)    
A secure version of HTTP that encrypts HTTP transmissions.

SLIP    (Serial Line Internet Protocol)    
A protocol for transmitting IP datagrams and other protocols over telephone links or serial lines.

SMTP    (Simple Mail Transfer Protocol)    
The primary protocol for exchanging e-mail messages across TCP/IP networks. Works with POP and IMAP.

SNMP    (Simple Network Management Protocol)    
A network management protocol used to gather information about devices on a network.

Sockets    
An API (application programming interface) that applications use to access TCP/IP networking services.

SSL (Secure Socket Layer)    
A protocol that secures transmissions across IP networks by encrypting data.

Telnet
A terminal protocol for logging on to remote hosts.


TCP (Transmission Control Protocol)
TCP is a subset of the Internet protocol suite, which is often called TCP/IP, although the acronym TCP/IP refers to only two of the many protocols in the Internet protocol suite.


TFTP (Trivial File Transfer Protocol)    
A simplified version of FTP that provides no security and does not use TCP's reliability features.


UDP (User Datagram Protocol)
A protocol that sits next to TCP in the transport layer of the protocol stack, but provides fewer services than TCP.


Usenet    
A protocol that allows users to participate in newsgroups, where articles can be posted and viewed.

Veronica    
A search engine similar to Archie and built with Gopher.

WAIS (Wide Area Information Service)    
A distributed information service and search system.

WHOIS    
A protocol that displays information about an entity or person..