Trinux is a mini-distro that fits on a bootable floppy and contains a number of security tools. A typical version boots from 2 or 3 compressed floppies. It can run within 12-megabytes of RAM and can run on a 386 processor.
Trinux contains modules for:
firewalling packet filters, IP masquerading/NAT
scanning port scanning, SNMP scan, RPC, NFS and DNS
