Im not really understanding the concepts proxy server, port addresses. I have attaced a pic with this and ple

Question

ase tell me what are those? What are their roles and y do v use those ports and addresses separetely for http, secure, ftp, gopher, and y socks is left alone? Please make me understand it step by step... Moreover why "3128" is usedn as port? cant v use any other 4 digit number? see pic: http://img30.picoodle.com/img/img30/4/5/20/f_portm_b15719a.png

Answer 1

A proxy server is a piece of software that runs on a computer(server). It provides all sorts of functions but probably in your case it blocks various sites and adds security for your internal network. Basically it means that all the 4 communication protocols funnel through one place and can be inspected/changed/blocked depending what you are doing.



Your company proxy server is running on the computer that has the IP Address 192.168.200.254



The proxy server software listens for different types of communications (http,https etc) on specific PORT's. In your case the 4 different protocol types that are processed by the proxy server are all being listened for on the same port 3128.



You are correct in that it could be listening on almost any port number but your proxy server is setup to listen on port 3128.

Answer 2

some ports are reserved for some services. They are the same on all computers, so that the services could work. Proxy is used to create a barrier between your computer and the internet. The software communicated with the internet and your computer on the port specified in the proxy server setting.

Answer 3

The port is the only you're utilising for the provider you're searching for - in case you modify the port, you don't get the provider. (The server determines the port, no longer you or a proxy.) in case you elect to alter your IP handle, replace your provider. (besides the actuality that why you care what it extremely is, except you're attempting to stay sparkling of a ban - which will purely get you in deeper - is previous me. One IP handle is purely as sturdy as the different.)