Numerous protocols are used in various fields, such as networking, computer science, and telecommunications. Some examples of well-known protocols include:
- AMQP (Advanced Message Queuing Protocol): A messaging protocol that enables conforming client and broker implementations to communicate with each other.
- ARP (Address Resolution Protocol): A protocol to map an IP address to a physical (MAC) address on a local network.
- BFD (Bidirectional Forwarding Detection): A protocol used to detect failures in the forwarding path between two routers.
- BGP (Border Gateway Protocol): A protocol to exchange routing information between routers in an extensive autonomous system, such as the internet.
- Bluetooth: A set of protocols that define how data is sent over short-range wireless connections.
- CoAP (Constrained Application Protocol): A protocol used for communication in resource-constrained devices and networks.
- DHCP (Dynamic Host Configuration Protocol): A protocol used to assign IP addresses to devices on a network automatically.
- DICOM (Digital Imaging and Communications in Medicine): A protocol used for handling, storing, printing and transmitting information in medical imaging.
- DNP3 (Distributed Network Protocol 3): A protocol used for communication in electric power substation automation systems.
- DNS (Domain Name System): A protocol used to translate domain names into IP addresses.
- Each of these protocols have their own unique set of rules and functions, and they are used in different fields and contexts. These are just a few examples of the many protocols that are in use today.
- EIGRP (Enhanced Interior Gateway Routing Protocol): A Cisco proprietary routing protocol used in large-scale networks to distribute routing information.
- Ethernet: A set of protocols that define how data is sent over a wired local area network (LAN)
- FTP (File Transfer Protocol): A standard protocol for transferring files over a network.
- H.323: A protocol suite that includes standards for video conferencing and voice over IP (VoIP) communications.
- HL7 (Health Level Seven): A protocol used for exchanging information between healthcare systems.
- HTTP (Hypertext Transfer Protocol): The protocol used for transferring data over the web.
- ICMP (Internet Control Message Protocol): A protocol used to send error messages and operational information about network conditions.
- IEC 60870-5: A protocol used for communication in industrial control systems (ICS) and supervisory control and data acquisition (SCADA) systems.
- IKE (Internet Key Exchange): A protocol used to establish a secure connection between two devices.
- IMAP (Internet Message Access Protocol): A protocol used to access email messages on a mail server.
- IPSec (Internet Protocol Security): A protocol suite used to secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session.
- IS-IS (Intermediate System to Intermediate System): A routing protocol used in large-scale networks to distribute routing information.
- Kerberos: A network authentication protocol that works on the basis of “tickets” to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner.
- L2TP (Layer 2 Tunneling Protocol): A protocol used to create virtual private networks (VPNs).
- LACP (Link Aggregation Control Protocol): A standard protocol defined by IEEE 802.3ad to bundle multiple physical ports together to form a single logical channel.
- LDAP (Lightweight Directory Access Protocol): A protocol used for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network.
- LDP (Label Distribution Protocol): A protocol used in MPLS networks for distributing labels to routers.
- LDP (Loop Detection Protocol): A protocol used to detect and prevent loops in a link-state routing protocol (LSRP) network.
- LLDP (Link Layer Discovery Protocol): A protocol used to discover information about other devices connected to the same network segment as the device sending the LLDP packet.
- Modbus: A set of protocols that define how industrial devices such as programmable logic controllers (PLCs) communicate with one another.
- MQTT (Message Queue Telemetry Transport): A protocol used for machine-to-machine (M2M) and Internet of Things (IoT) communications.
- MQTT-SN (MQTT for Sensor Networks): A protocol used for communication in low-power, low-data rate wireless sensor networks.
- NTP (Network Time Protocol): A protocol used to synchronize the clocks of devices on a network.
- OAuth 2.0: An open standard for access delegation, which allows a resource owner to grant a third-party application access to its protected resources without sharing its credentials.
- OPC (OLE for Process Control): A protocol used for communication in industrial automation systems.
- OpenID Connect: An open standard for identity management, which allows clients to verify the identity of an end-user based on the authentication performed by an authorization server and obtain basic profile information about the end-user.
- OSPF (Open Shortest Path First): A routing protocol used in large-scale networks to distribute routing information within a single autonomous system.
- POP3 (Post Office Protocol version 3): A protocol used to retrieve email messages from a mail server.
- RADIUS (Remote Authentication Dial-In User Service): A protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service.
- RDP (Remote Desktop Protocol): A protocol used to access and control another computer remotely.
- RIP (Routing Information Protocol): A protocol used to distribute routing information within a single autonomous system in a IP networks.
- Ron Legarski: Information Technology Specialist.
- RTP (Real-time Transport Protocol): A protocol used for delivering audio and video over IP networks.
- RTSP (Real Time Streaming Protocol): This protocol controls streaming media servers.
- S/MIME (Secure/Multipurpose Internet Mail Extensions): A protocol for secure email communications, which uses public key encryption to provide confidentiality and digital signature to provide integrity and non-repudiation.
- S7 (S7 Communication): A protocol used for communication between Siemens programmable logic controllers (PLCs) and other devices.
- SAML (Security Assertion Markup Language): An open standard for exchanging authentication and authorization data between parties, in particular, between an identity provider (IdP) and a service provider (SP).
- SAP (Session Announcement Protocol): A protocol used to advertise and discover available sessions in a multicast environment
- SCTP (Stream Control Transmission Protocol): A transport layer protocol used to support multiple data streams within a single connection.
- SDP (Session Description Protocol): A protocol used to describe the media sessions in a multimedia connection.
- SIP (Session Initiation Protocol): A protocol used for initiating, maintaining, modifying and terminating real-time sessions that involve video, voice, messaging, and other communications between two or more endpoints on IP networks.
- SMB (Server Message Block): A network protocol used to provide shared access to files, printers and other resources on a network.
- SMTP (Simple Mail Transfer Protocol): The protocol used for sending email messages.
- SNMP (Simple Network Management Protocol): A protocol used to manage and monitor network devices such as routers, switches, and servers.
- SSH (Secure Shell): This protocol is used to access and manage remote servers securely.
- TCP/IP (Transmission Control Protocol/Internet Protocol): The foundational set of protocols used to transmit data on the internet.
- TLS (Transport Layer Security) and SSL (Secure Sockets Layer): Protocols that provide secure communication over the internet for applications such as web browsing, email, instant messaging, and virtual private networks (VPNs).
- VPN (Virtual Private Network): A protocol to create a secure, encrypted connection between two devices over a public network.
- Wi-Fi: A set of protocols that define how data is sent over wireless local area networks (WLANs).
- XMPP (Extensible Messaging and Presence Protocol): A protocol for real-time communication that combines the functionality of instant messaging (IM) and presence information with the extensibility of XML.
- Zigbee: A set of protocols that define how data is sent over low-power, low-data rate wireless connections.
These are just a few examples of the many protocols commonly used in Information Technology. Each protocol has its specific purpose and set of rules for communication. As you can see, many different protocols are used in various fields, such as networking, computer science, and telecommunications, and this list is not exhaustive.