My Linux(redhat6) server has to use http proxy to connect to outside world. While it works for other things like wget, it doesn't work for cabal.
cabal update -v3
shows errors like this:
407 - proxy authentication required cabal: Failed to download http://hackage.haskell.org/packages/archive/00-index.tar.gz : ErrorMisc "Unsucessful HTTP code: 407"
I tried to change http_proxy environment variable to format like http:// user: passwd at proxy:port, but it doesn't work either.
The same problem has been asked here
But I'm not allowed use a proxy server like polipo, is there any other way to make cabal work behind a proxy?