Add this to cron to backup your Google Mini:
0 1 * * * /path/to/minibackup.pl
You can download this script here.
#!/usr/bin/perl
# automatically backup a Google Mini's config file
use WWW::Mechanize;
use IO::Socket::SSL;
use DateTime;
$dest = '/backups/miniconfigs'; # dir to save the backups
$base = 'https://mini.mars.planet:8443/'; # needs ending '/'
$username = ''; # usually admin
$passwd = '';
###
die "the directory $dest doesn't exist\n" if (!-d $dest);
$base = $base . '/' if ($base !~ /\/$/);
my $mech = WWW::Mechanize->new(autocheck => 1);
$mech->agent_alias('Windows IE 6');
$url = $base . 'EnterpriseController';
$mech->get($url);
$mech->reload();
$mech->form_name('login');
$mech->field('userName', $username);
$mech->field('password', $passwd);
$mech->click();
$url = $base . 'EnterpriseController?actionType=importExport';
$mech->get($url);
$mech->reload();
$mech->form_name('headersSetup');
$mech->field('password1', $passwd);
$mech->field('password2', $passwd);
$mech->click('export');
$dt = DateTime->now();
$date = $dt->day . '-' . $dt->month . '-' . $dt->year;
$file = "$dest/config.xml-$date";
open(OUT, ">$file");
print OUT $mech->content;
close OUT;