Proxy
Windows
In order to be used by cmd as well as the browsers you need to set the environmental variables:
HTTP_PROXY HTTPS_PROXY NO_PROXY
Set it via the environmental variables settings ui or via cmd with setx.
# show current proxies
netsh winhttp show proxy
# set env vars
setx HTTP_PROXY myproxy.de
setx HTTPS_PROXY myproxy.de
setx NO_PROXY ".mycompanydomain.de,localhost,127.0.0.*"
Linux
export HTTP_PROXY=myproxy.de
export HTTPS_PROXY=myproxy.de
export NO_PROXY=".mycompanydomain.de,localhost,127.0.0.*"