What does localhost 8080 mean

Question

What is the difference between localhost web vs  localhost 8080 web

User · Accepted Answer

A TCP IP connection is always made to an IP address  you can think of an IP-address as the address of a certain computer  even if that is not always the case  and a specific  logical  not physical  port on that address   Usually one port is coupled to a specific process or  service  on the target computer  Some port numbers are standardized  like 80 for http  25 for smtp and so on  Because of that standardization you usually don t need to put port numbers into your web adresses   So if you say something like http   www stackoverflow com  the part  stackoverflow com  resolves to an IP address  in my case 64 34 119 12  and because my browser knows the standard it tries to connect to port 80 on that address  Thus this is the same as http   www stackoverflow com 80   But there is nothing that stops a process to listen for http requests on another port  like 12434  4711 or 8080  Usually  as in your case  this is used for debugging purposes to not intermingle with another process  like IIS  already listening to port 80 on the same machine

User · Answer

http uses port 80  and understandably  your internet browser will automatically use that port when you type in an address - unless you specify another port  Now  when running a web server on your computer  you need to access that server somehow - and since port 80 is already busy  you need to use a different port to successfully connect to it  Although any open port is fair game  usually such a server is configured to use port 8080  hence when accessing your server you type in    http     protocol   localhost  your computer    8080  port 8080      path pointing to the root of the public folder of your server

User · Answer

the localhost 8080 means your explicitly targeting port 8080

User · Answer

http    localhost 8080 web   Where    localhost   hostname   is the machine name or IP address of the host server e g Glassfish  Tomcat  8080   port   is the address of the port on which the host server is listening for requests       http    localhost web   Where   localhost   hostname   is the machine name or IP address of the host server e g Glassfish  Tomcat  host server listening to default port 80

User · Answer

http   localhost 8080 web  localhost   hostname   is the machine name or IP address of the host server e g Glassfish  Tomcat  8080   port   is the address of the port on which the host server is listening for requests   http   localhost web  localhost   hostname   is the machine name or IP address of the host server e g Glassfish  Tomcat  host server listening to default port 80

User · Answer

Option 1  localhost web is equal to localhost 80 web OR to 127 0 0 1 80 web  Option 2  localhost 8080 web is equal to localhost 8080 web OR to 127 0 0 1 8080 web

[networking] What does localhost:8080 mean?

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