Ruby 'gem install' won't work

I am behind a firewall with internet blocker installed. I have power user previlage so I was able to install from git etc. But I am facing this only when I try installing 'gem'. Here is what I get, I think it says it recieved some error instead of a gzip.

Is there any config that I need to change? or any port or anything?? does it use ftp???

Please help..

[root@max-desktop max # gem i开发者_StackOverflow社区nstall mongrel ERROR: While executing gem ... (Zlib::GzipFile::Error) not in gzip format

Check out the Rubygems page for Mongrel, where there is a download link.

$ wget http://rubygems.org/downloads/mongrel-1.1.5.gem
$ sudo gem install mongrel-1.1.5.gem

As a reminder, Mongrel has runtime dependencies that need to be installed first (you can use these same steps).

no idea, but maybe try upgrading rubygems? sudo gem update --system