88 ??
No
TCP Port 88
RADIUS requires port-based authentication.
Yes, RADIUS requires port-based authentication.
No, physically they are different numbers. Logically, however, both port 80 and port 8080 listen for HTTP traffic, so logically they are the same. Port 80 is the standard, production port for HTTP traffic. Port 8080 is a 'test' port for HTTP traffic.
Port-based authentication is a form of "security by obscurity" wherein any device connecting to a system via the selected port is assumed to have authority to access said system. This can be dangerous if the port is randomly guessed, or shared by an someone who has previously been authorized. In this way, port-based authentication is equivalent to using a weak (or even default) password.
A typical rule that allows port 80 traffic through a firewall is one that permits inbound TCP connections on port 80, which is the standard port for HTTP traffic. This rule usually specifies the source and destination IP addresses or networks and allows traffic from any source to the designated server's IP on port 80. Additionally, the action for this rule would be set to "allow" or "accept." This configuration enables web traffic to reach the server hosting the website.
The busiest port in the world is contested by several ports around the world as there is no standard measure of performance or volume of traffic. The main contenders are: Rotterdam Singapore Shanghai.
HTML itself doesn't use a port. You can transfer an HTML document over any port you'd like. The Hyper-text Transfer Protocol (HTTP) however, does have a standard, non-secure port: 80. Web servers listen by default at :80. If they're configured to listen for secure HTTPS connections, they will also listen on :443. Configuring the server to listen on a different port is often used to run two sites over the same domain name, and is pretty common on intranets.
LDAP uses port 389 for encrypted traffic.
Google Chrome itself does not have a specific port number; rather, it uses standard ports based on the protocols it supports. For example, HTTP traffic typically uses port 80, and HTTPS traffic uses port 443. When you access websites through Chrome, the browser communicates over these ports depending on the site's protocol.
Port 8080 is commonly used as an alternative HTTP port, often utilized for web servers and proxy servers. It allows web traffic to flow when the default port 80 is unavailable or blocked. Additionally, developers may use port 8080 for testing and debugging web applications. Its versatility makes it a popular choice for various services and applications beyond standard web traffic.