=item cache_metadata

To considerably speed up the initial CPAN shell startup, it is
possible to use Storable to create a cache of metadata. If Storable is
not available, the normal index mechanism will be used.

Note: this mechanism is not used when use_sqlite is on and SQLLite is
running.

Cache metadata (yes/no)?

=item check_sigs

CPAN packages can be digitally signed by authors and thus verified
with the security provided by strong cryptography. The exact mechanism
is defined in the Module::Signature module. While this is generally
considered a good thing, it is not always convenient to the end user
to install modules that are signed incorrectly or where the key of the
author is not available or where some prerequisite for
Module::Signature has a bug and so on.

With the check_sigs parameter you can turn signature checking on and
off. The default is off for now because the whole tool chain for the
functionality is not yet considered mature by some. The author of
CPAN.pm would recommend setting it to true most of the time and
turning it off only if it turns out to be annoying.

Note that if you do not have Module::Signature installed, no signature
checks will be performed at all.

Always try to check and verify signatures if a SIGNATURE file is in
the package and Module::Signature is installed (yes/no)?

=item colorize_output

When you have Term::ANSIColor installed, you can turn on colorized
output to have some visual differences between normal CPAN.pm output,
warnings, debugging output, and the output of the modules being
installed. Set your favorite colors after some experimenting with the
Term::ANSIColor module.

Do you want to turn on colored output?

=item colorize_print

Color for normal output?

=item colorize_warn

Color for warnings?

=item colorize_debug

Color for debugging messages?

=item commandnumber_in_prompt

The prompt of the cpan shell can contain the current command number
for easier tracking of the session or be a plain string.

Do you want the command number in the prompt (yes/no)?

=item connect_to_internet_ok

If you have never defined your own C<urllist> in your configuration
then C<CPAN.pm> will be hesitant to use the built in default sites for
downloading. It will ask you once per session if a connection to the
internet is OK and only if you say yes, it will try to connect. But to
avoid this question, you can choose your favorite download sites once
and get away with it. Or, if you have no favorite download sites
answer yes to the following question.

If no urllist has been chosen yet, would you prefer CPAN.pm to connect
to the built-in default sites without asking? (yes/no)?

=item ftp_passive

Shall we always set the FTP_PASSIVE environment variable when dealing
with ftp download (yes/no)?

=item ftpstats_period

Statistics about downloads are truncated by size and period
simultaneously.

How many days shall we keep statistics about downloads?

=item ftpstats_size

Statistics about downloads are truncated by size and period
simultaneously.

How many items shall we keep in the statistics about downloads?

=item getcwd

CPAN.pm changes the current working directory often and needs to
determine its own current working directory. Per default it uses
Cwd::cwd but if this doesn't work on your system for some reason,
alternatives can be configured according to the following table: