How to put an application through the proxy list?

Question

proxy

How to put an application through the proxy list? So that every new request (well, or every tenth, for example) goes through a new proxy.
Better for Linux, but also for Windows

Answer 1

1. Raise two proxies.
2. Raise DNS in LAN.
3. Enable, prescribe round robin to both proxy addresses.
4. In the browser, register the proxy by dns name.
5. For half a day you rack your brains why half of the sites are not loaded, after the first page, authorization on sites and videos on YouTube does not always work.
6. It dawns on you that you smoked bad network equipment. You stop suffering from garbage and start using which proxy switcher thread and make sure that the session does not jump from proxy to proxy.