What are valid TCP ports?

Port numbers range from 0 to 65535, but only port numbers 0 to 1023 are reserved for privileged services and designated as well-known ports….List of Well-Known Ports.

Port Number — Description
389 Lightweight Directory Access Protocol (LDAP)
396 Novell Netware over IP
444 Simple Network Paging Protocol (SNPP)

Is Port 7443 a TCP or UDP?

Service Name and Transport Protocol Port Number Registry

Service Name Port Number Transport Protocol
oracleas-https 7443 tcp
oracleas-https 7443 udp
pcsync-https 8443 tcp
pcsync-https 8443 udp

Is port 389 a TCP?

The well known TCP and UDP port for LDAP traffic is 389. The well known TCP port for SSL is 636 while TLS is negotiated within a plain TCP connection on port 389.

What is TCP open port?

In security parlance, the term open port is used to mean a TCP or UDP port number that is configured to accept packets. There needs to be an application (service) listening on that port, accepting the incoming packets and processing them.

What is the highest TCP port?

The highest TCP port number is 65,535. The TCP protocol provides 16 bits for the port number, and this is interpreted as an unsigned integer; all values are valid, apart from 0, and so the largest port number is (2^16 – 1) or 65,535.

Is 443 a TCP or UDP?

When your browser makes an HTTPS connection, a TCP request is sent via port 443. However, once the connection is established, although the application layer data (the message exchanged between the client and the server) is encrypted, that doesn’t protect users against fingerprinting attacks.

What RDP 3389?

Remote Desktop Protocol (RDP) is a Microsoft proprietary protocol that enables remote connections to other computers, typically over TCP port 3389. It provides network access for a remote user over an encrypted channel. Remote users use RDP to log into the organization’s network to access email and files.

What port number is www?

Common port numbers

Number Assignment
25 Simple Mail Transfer Protocol (SMTP) email delivery
53 Domain Name System (DNS) service
67, 68 Dynamic Host Configuration Protocol (DHCP)
80 Hypertext Transfer Protocol (HTTP) used in the World Wide Web