print DDumper make_list_2( file => $BBSs, headings => [qw(name domain ip site)] );

{   Abyss            => {
        domain           => 'abyss.monad.net',
        ip               => '204.97.16.51',
        name             => 'Abyss',
        site             => undef
        },
    'Aloha BBS'      => {
        domain           => 'alohabbs.org.mx',
        ip               => undef,
        name             => 'Aloha BBS',
        site             => undef
        },
    Apocalypse       => {
        domain           => undef,
        ip               => '208.215.35.204',
        name             => 'Apocalypse',
        site             => undef
        },
    Astro            => {
        domain           => 'astro.sci.muni.cz',
        ip               => undef,
        name             => 'Astro',
        site             => 'astro.sci.muni.cz'
        },
    Atlantis         => {
        domain           => 'bbs.resus.univ-mrs.fr',
        ip               => '139.124.29.1',
        name             => 'Atlantis',
        site             => undef
        },
    }