E-BOX IS BUILT ON COMMON COMPONENTS AND FREE SOFTWARE STABLE Apache Web Server mod_perl CGI engine OpenLDAP Shared users and groups OpenSSL Cryptography Netfilter / iptables Firewalls Network Address Translation BIND Domain Name Server Squid Web proxy cache DansGuardian Content Filtering Postfix Email Server Jabber Instant Messaging Ntpd Date and Time Synchronization OpenVPN Virtual Private Networks Samba Shared Storage Shared authentication for Windows clients System Common Unix Printing (CUPS) Shared Printers Advanced Packaging Tool (APT) Installing and upgrading software Asterisk Voice over IP Snort Intrusion Prevention System based on network eGroupware Sharing calendar, contacts, webmail Dovecot IMAP and POP3 server The full distribution using Ubuntu 8.04 Hardy Heron