cpan[1]> o conf init /proxy/

    If you're accessing the net via proxies, you can specify them in the CPAN configuration or via environment variables. The variable in the $CPAN::Config takes precedence.

    Your ftp_proxy? []

    Your http_proxy? [] 10.12.8.9:3128

    Your no_proxy? []

    If your proxy is an authenticating proxy, you can store your username permanently. If you do not want that, just press RETURN. You will then be asked for your username in every future session.

    Your proxy user id? [] my_net_id

    Your password for the authenticating proxy can also be stored permanently on disk. If this violates your security policy, just press RETURN. You will then be asked for the password in every future session.

    CPAN: Term::ReadKey loaded ok (v2.30) Your proxy password? Please remember to call 'o conf commit' to make the config permanent!

    cpan[2]> o conf commit commit: wrote '/usr/lib/perl5/5.10.0/CPAN/Config.pm'