Typically, these tools are made available under a liberal license and you may use them free of charge provided you observe the copying conditions. You may also be interested in the software on the Java page, some of which is security-related, and in Password Defender , an integrated set of defences against NT password cracking tools. If you would like to be notified of future releases of these tools, please use the form below. You will be subscribed to a low volume announcement list.
Further information is available .
Programs built on FFC can run on Linux, FreeBSD, Windows '95, or Windows NT, with just a recompile. FFC is free for commercial and non-commercial use, and comes with full source code. The current FFC version is alpha 2. Having said that, it's been in use here for several months, proxying LDAP, NNTP, and POP, and providing a userland NAT service, and for this role it has proved fairly robust. More complete information on FFC will be made available shortly.