Parent proxy on web-proxy

Hello

Please, may someone explain me exactly (maybe with one scenario) for what parent-proxy, on web proxy is used for?
Can I add another proxy cache and other proxy policies (on another machine) ?
Who will be primary (master)?

Thnx!

Hello


Have anyone any idea regarding this topic???

This is too short but might explain something

http://www.christianschenk.org/blog/using-a-parent-proxy-with-squid/

What OS must be installed in order to use squid? Can we add it on Mikrotik as Gest OS?

Thanks GuJack20.

Benny 30,
Squid is a part of Mikrotik RouterOS. It used on IP Web Proxy.