you can use a trivial file transfer protocol (tftp) configuration server to obtain configuration for multiple pix firewalls from a central source. however, tftp is inherently insecure so you should not use it over networks where sharing privileged information in clear text is a violation of your network security policy.

    you can also use tftp to download a .bin image from cco to a pix firewall to upgrade or replace the software image on the pix firewall. tftp does not perform any authentication when transferring files,so a username and password on the remote host are not required.