1. Virtual Private Network Daemon Vpnd is a daemon which connects two networks on network level either via TCP/IP or a (virtual) leased line attached to a serial interface. All data transfered between the two networks are encrypted using the unpatented free Blowfish encryption algorithm (see http://www.counterpane.com/) with a key length of up to 576 bits (may be downgraded to a minimum of 0 bits to suit any legal restrictions). From Debian 3.0r0 APT