Back in Windows land, it was only Chrome and IE and few other softwares that used IE's internal proxy settings. I'm interested to know how does it work in Ubuntu/Linux in general?
Often just setting the HTTP_PROXY environment variable would be caught by the program, it seems to me, but it is all that open network-proxy does ? Can softwares neglect this setting, by making direct connections? Is it actually up to them to decide ? Or if once I set a system wide proxy setting, it re-routes everything ?