What are the different port numbers?
- Ports 20 and 21: File Transfer Protocol (FTP). ...
- Port 22: Secure Shell (SSH). ...
- Port 25: Historically, Simple Mail Transfer Protocol (SMTP). ...
- Port 53: Domain Name System (DNS). ...
- Port 80: Hypertext Transfer Protocol (HTTP). ...
- Port 123: Network Time Protocol (NTP).
People also ask
What is protocol and port number?
Port numbers are use by TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) while Protocol numbers are reserved number used to identify protocols. ----------------- Protocol number is the value contained in the “protocol” field of an IPv4 header. It is used to identify the protocol.
What are the port numbers in networking?
Port numbers identify a particular application or service on a system. An IP address identifies a machine in an IP network and determines the destination of a data packet, while port numbers identify particular applications or services on a system.
What are the port numbers for TCP IP protocols?
Protocol | TCP/UDP | Port Number |
Hypertext Transfer Protocol (HTTP) (RFC 2616) | TCP | 80 |
Post Office Protocol (POP) version 3 (RFC 1939) | TCP | 110 |
Network Time Protocol (NTP) (RFC 5905) | UDP | 123 |
NetBIOS (RFC 1001-1002) | TCP/UDP | 137/138/139 |
Is port 443 TCP or UDP?
UDP port 53 is used for DNS, TCP port 80 is used for non-encrypted web services, and TCP port 443 is used for encrypted web services.
Apr 30, 2012 · Table 1. Common TCP/IP Protocols and Ports ; Hypertext Transfer Protocol (HTTP). (RFC 2616). TCP. 80. HTTP is one of the most commonly used ...
This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User ...
Oct 20, 2023 · Port numbers that fall into the category of Well Known/Systems ports include numbers between 0 and 1023. IP protocols use them for TCP, UDP, ...
Apr 15, 2024 · The most 50 significant ports are listed here: ; HTTP, TCP, UDP, SCTP. Hypertext Transfer Protocol (HTTP) uses TCP in versions 1.x and 2. HTTP/3 ...
Learn the most common port numbers and network protocols such as HTTP, DNS, SNMP, ICMP, ARP, NTP and more. How do the protocols work in the real world?
Port number: 80 (TCP). HTTPS: is similar to HTTP, except it adds security in the form of encryption. Port number: 443 (TCP). RTP: Real ...
Oct 26, 2023 · 1. HTTP (Hypertext Transfer Protocol) - Port 80 · 2. HTTPS (HTTP Secure) - Port 443 · 3. SSH (Secure Shell) - Port 22 · 4. FTP (File Transfer ...
14 common network ports you should know ; 80. Hypertext Transfer Protocol (HTTP) used in World Wide Web ; 110. Post Office Protocol (POP3) used by e-mail clients ...