Figaro's Password Manager (FPM) is a GNOME application that allows you to securely store your passwords, which are encrypted with the blowfish algorithm. It allows you to copy passwords or usernames to the clipboard or primary selection. If a password is for a Web site, FPM can keep track of the URLs of your login screens and can automatically launch your browser. You can also teach FPM to launch other applications. FPM can sort your passwords into categories. Finally, it has a password generator that can help you choose good passwords.
fireparse is an ADMLogger plugin that emails a report of all packets that have been logged by the kernel's packet filtering subsystem (iptables/netfilter or ipchains). The report includes source and destination ports, direction, logged packet count, matched rule, and fully resolved host names (if available). The email report can be formatted to plain text or a colored HTML table.
Firewall Builder consists of a GUI and set of policy compilers for various firewall platforms. It helps users maintain a database of objects and allows policy editing using simple drag-and-drop operations. The GUI and policy compilers are completely independent, which provides for a consistent abstract model and the same GUI for different firewall platforms. It currently supports iptables, ipfilter, ipfw, OpenBSD pf, Cisco PIX and FWSM, and Cisco routers access lists.
Firewall Log Daemon is a program written in C which will watch for ipchains or iptables log alerts in realtime. The program will start a small daemon process that parses and resolves firewall logs by reading a FIFO that syslog writes to. It can queue a batch of alerts and mail them to you, or can be used in a script to crunch an existing log file or data stream. It features hostname, port, protocol, and ICMP type/code lookup, with output formatted by a user-defined template.
fwmon is a firewall monitor for Linux. It integrates with ipchains/iptables to give you realtime notification of firewall events. It has fairly customizable output, allowing you to display a packet summary with hex and ASCII data dumps to stdout, a logfile, tcpdump-style capture files, and even syslog. It also boasts some simple security features such as the ability to chroot itself, and operate in a non-root environment.
floppyfw is a router and simple firewall on one single floppy. It uses Linux basic firewall capabilities, and has a very simple packaging system. It is perfect for masquerading and securing networks on ADSL and cable lines, using both static IP, DHCP, and PPPoE, and provides a simple installation, which usually involves editing of only one file on the floppy.
FrazierWall Linux is a single floppy distribution Linux firewall that is based on the Linux Router Project. It is designed for use with ethernet base internet connections (such as cable modems or xDSL lines). It allows you to share such a connection with several other computers on a LAN. It is easy to setup and maintain, and is available in a Linux configurable software version.
fsh is a tool for establishing an ssh tunnel for remote execution of commands without requiring an ssh authentication on every connection. Once the tunnel is established, remote commands can be executed almost instantaneously. This makes systems such as remote cvs over ssh much faster. It includes fcp, an rcp variant that uses fsh.