What are IANA ports?

The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses. However, many unofficial uses of both well-known and registered port numbers occur in practice.

How many ports does the IANA list in their official port list?

The Registered Ports are assigned by IANA and on most systems can be used by ordinary user processes or programs executed by ordinary users. The Registered Ports are in the range 1024-49151….

What is the standard IANA port number used for requesting web pages?

User port numbers range between 1024 and 49151. If you wish to register a system port — those numbered 1023 or less — it must be done through the standardisation process of the IETF.

How do I register with IANA?

If you need a specific value, and the registration procedure in question is First Come First Served or Expert Review, you can request permanent registration at any time by using the relevant application form or by sending an email to [email protected].

What port can I use instead of 80?

Port 8080
GRC | Port Authority, for Internet Port 8080. Description: This port is a popular alternative to port 80 for offering web services. “8080” was chosen since it is “two 80’s”, and also because it is above the restricted well known service port range (ports 1-1023, see below).

Why is port 80 open?

One of the main reasons to keep port 80 open is to continue to redirect traffic from HTTP to HTTPS. We have to keep port 80 open to redirect any traffic that might attempt to connect there first, for whatever reason that might be.

Which network ports are open?

Which Ports Are Usually Open By Default?

• 20 – FTP (File Transfer Protocol)
• 22 – Secure Shell (SSH)
• 25 – Simple Mail Transfer Protocol (SMTP)
• 53 – Domain Name System (DNS)
• 80 – Hypertext Transfer Protocol (HTTP)
• 110 – Post Office Protocol (POP3)
• 143 – Internet Message Access Protocol (IMAP)
• 443 – HTTP Secure (HTTPS)