Install Ruby gems behind NTLM proxy -

i trying install ruby gems behind ntlm proxy. os windows 7. these solutions tried, non of them working.

using http_proxy:

set http_proxy=http://domain\user:pass@proxy.company.com:8080 set http_proxy=http://domain\\user:pass@proxy.company.com:8080 set http_proxy=http://domain\\user:pass@proxy.company.com:8080/ 

all above response bad uri

set http_proxy=http://user:pass@proxy.company.com:8080 

response: bad response proxy authentication required 407

using -p or --http-proxy parameter ruby

gem install -p "http://domain\user:pass@proxy.company.com:8080" rake  gem install -p "http://domain\\user:pass@proxy.company.com:8080" rake  gem install -p http://domain\user:pass@proxy.company.com:8080 rake  gem install -p http://domain\\user:pass@proxy.company.com:8080 rake  gem install --http-proxy "http://domain\user:pass@proxy.company.com:8080" rake  gem install --http-proxy "http://domain\\user:pass@proxy.company.com:8080" rake  gem install --http-proxy http://domain\user:pass@proxy.company.com:8080 rake  gem install --http-proxy http://domain\\user:pass@proxy.company.com:8080 rake 

all response: invalid argument

try options above without domain or encode \ %5c receive reponse: bad response proxy authentication required 407 

what did miss in these command or setup?

you can use cntlm http://cntlm.sourceforge.net/, have local proxy requires no authentication (which in turns connects ntlm proxy).

also: how update ruby gems behind proxy (isa-ntlm)