Where does application client stand in communication with application server via web server and web client?












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When using ssh client and server in port forwarding, the programs involved communicate in a sequence:



application client <-> SSH client/server <-> SSH server/client <-> application server



When using web server and client with application server (note that here I am asking about concepts, so I guess that it is better to "separate" web server and application server), I found an diagram from https://stackoverflow.com/a/24097629/156458. Where is the application client located? Is it behind web client, like the case of using ssh client and server in port forwarding?



Does a web server need to have the ability to work as a client to the application server?
Does that imply that a web server doesn't necessarily have the ability to work with any application server?



Thanks.



enter image description here









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    0















    When using ssh client and server in port forwarding, the programs involved communicate in a sequence:



    application client <-> SSH client/server <-> SSH server/client <-> application server



    When using web server and client with application server (note that here I am asking about concepts, so I guess that it is better to "separate" web server and application server), I found an diagram from https://stackoverflow.com/a/24097629/156458. Where is the application client located? Is it behind web client, like the case of using ssh client and server in port forwarding?



    Does a web server need to have the ability to work as a client to the application server?
    Does that imply that a web server doesn't necessarily have the ability to work with any application server?



    Thanks.



    enter image description here









    share



























      0












      0








      0








      When using ssh client and server in port forwarding, the programs involved communicate in a sequence:



      application client <-> SSH client/server <-> SSH server/client <-> application server



      When using web server and client with application server (note that here I am asking about concepts, so I guess that it is better to "separate" web server and application server), I found an diagram from https://stackoverflow.com/a/24097629/156458. Where is the application client located? Is it behind web client, like the case of using ssh client and server in port forwarding?



      Does a web server need to have the ability to work as a client to the application server?
      Does that imply that a web server doesn't necessarily have the ability to work with any application server?



      Thanks.



      enter image description here









      share
















      When using ssh client and server in port forwarding, the programs involved communicate in a sequence:



      application client <-> SSH client/server <-> SSH server/client <-> application server



      When using web server and client with application server (note that here I am asking about concepts, so I guess that it is better to "separate" web server and application server), I found an diagram from https://stackoverflow.com/a/24097629/156458. Where is the application client located? Is it behind web client, like the case of using ssh client and server in port forwarding?



      Does a web server need to have the ability to work as a client to the application server?
      Does that imply that a web server doesn't necessarily have the ability to work with any application server?



      Thanks.



      enter image description here







      ssh webserver





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      edited 1 min ago







      Tim

















      asked 9 mins ago









      TimTim

      27.4k78264474




      27.4k78264474






















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