Is Port 9999 a TCP or UDP?
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Transport Protocol |
|---|---|---|
| distinct | 9999 | udp |
| dnp-sec | 19999 | tcp |
| dnp-sec | 19999 | udp |
| bingbang | 29999 | tcp |
Is 8081 a TCP or UDP?
Understanding Default Open Ports
| Port Number | Protocol | Where Used |
|---|---|---|
| 4500 | UDP | controller |
| 8080 | TCP | controller |
| 8081 | TCP | controller |
| 8082 | TCP | controller |
What is UDP protocol port?
A User Datagram Protocol port is an internetworking software abstraction, not a physical thing like a USB port. In Internetworking with TCP/IP , Douglas Comer explains, “We will imagine that each machine contains a set of abstract destination points called protocol ports.
Is port 500 UDP or TCP?
UDP port 500 is the ISAKMP port for establishing PHASE 1 of IPSEC tunnnel. ESP/AH being a L3 protocol doesn’t have a port number, rather it has a protocol number ( IP 50/51 respectively). & if please note that, UDP 500 is for ISAKMP & not for esp/ah.
What is port 81 used for?
Well-known ports
| Port | TCP | Description |
|---|---|---|
| 80 | Yes | Hypertext Transfer Protocol (HTTP) uses TCP in versions 1.x and 2. HTTP/3 uses QUIC, a transport protocol on top of UDP. |
| 81 | Unofficial | TorPark onion routing |
| 82 | TorPark control | |
| 83 | Yes | MIT ML Device, networking file system |
What is difference between TCP and UDP protocol?
TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol. A key difference between TCP and UDP is speed, as TCP is comparatively slower than UDP. Overall, UDP is a much faster, simpler, and efficient protocol, however, retransmission of lost data packets is only possible with TCP.