Today I was trying to setup ACPI-CA source tree in my computer using the following command
git clone http://www.acpica.org/repos/acpica.git
but it gave me error when connecting to the site. I knew it was problem with my cygwin network settings. Since I have a proxy server in between, connections internet was failing.
Googleing internet for how to configure cygwin to use proxy didn’t yield any result. Two of my friends with Linux knowledge advised me to set an environment variable (http_proxy) to connect. After exporting it, everything worked fine.