By default, most web servers are run on port 80. You can change this in the server's configuration file to something else, but then a web browser may have trouble accessing it.
port 80
Port 80
A Web server - or most other servers - will HAVE TO reserve a port number, to function correctly. For a Web server, this is usually port 80, but this can be changed to any other port.A Web server - or most other servers - will HAVE TO reserve a port number, to function correctly. For a Web server, this is usually port 80, but this can be changed to any other port.A Web server - or most other servers - will HAVE TO reserve a port number, to function correctly. For a Web server, this is usually port 80, but this can be changed to any other port.A Web server - or most other servers - will HAVE TO reserve a port number, to function correctly. For a Web server, this is usually port 80, but this can be changed to any other port.
80 is the default port for web (HTTP) services.
What protocol is used by web servers and on which port ?
Port 80 is generally configured to be the connecting port for web servers. Home routers aren't generally designed for hosting so port 80 is probably blocked by default but can be forwarded.
generally smtp is on 25 and pop3 is on 110. but there are different ports for different types of mail servers too.
web servers us port 80 to serve websites by default but they can be reconfigured to serve on different ports
Yes - this is frequently the case with web servers, which service requests on port 80 from multiple locations simultaneously.
Conventionally, an HTTP server listens on port 80. Regardless of the brand of web server that you are running, the server will typically listen for HTTP traffic on port 80 and HTTPS traffic on port 443.
Port 9000 is not pre-assigned to any function. It is the default port for the XDebug component used in many web development IDE's. www.xdebug.org
Port 8080 is an alternative to the port 80 used by http and web services. History: The Internet was largely born on UNIX-based systems and servers. UNIX enforces the notion of the first 1023 "privileged ports" which can only be opened by services running with so-called "root", or administrative, privileges. Historically, this meant that only authorized system administrators were able to establish and operate a web server on port 80 since this was within the first 1023-port privileged region. Therefore, when non-administrators wished to run their own web servers on machines which might already have a server running on port 80, or when they were not authorized to run services below port 1024, port 8080 was often chosen as a convenient place to host a secondary or alternate web server.