MetaCPAN Mirror

MetaCPAN provides an alternate mirror for CPAN, which is also a BackPAN (it includes deleted releases). It can be used if there are issues with the primary mirror, or you want to access older deleted releases via the cpan client.

The address for the mirror is https://cpan.metacpan.org/

Configuring the Mirror

cpanm

cpanm can use the MetaCPAN mirror using the -M option:

cpanm -M https://cpan.metacpan.org/ Module::To::Install

When using the MetaCPAN mirror, it may also be useful to use MetaCPAN's index. This can be done using the --metacpan option.

cpanm -M https://cpan.metacpan.org/ --metacpan Module::To::Install

These options can be set more permanently using the PERL_CPANM_OPT environment variable.

export PERL_CPANM_OPT='-M https://cpan.metacpan.org/ --metacpan'
cpanm Module::To::Install

cpan

CPAN.pm can be configured to use an alternate mirror using the urllist configuration setting. It also must be configured to use the urllist option by disabling the pushy_https option.

cpan
o conf urllist https://cpan.metacpan.org/
o conf pushy_https 0
o conf commit
install Module::To::Install
exit