fBuilder Plus is a Web-based utility for building and configuring your ipchains/iptables-based Linux firewall. It performs all actions in real-time and includes a Firewall Creation Wizard, edit, insert, and delete capabilities for firewall rules, rule shifting, support for DHCP clients, DMZ creation through firewall wizard, NAT capabilities, support for IP aliases, custom protocols, user defined chains, limit matches, automatic log rule creation, state checking, log reporting, email alerts, export capabilities, and an enhanced firewall log parsing utility.
fb is a binary file viewer, editor, and manipulator. It can be used as a filter, an interactive browser, or to simply dump a file in either binary, decimal, hexadecimal, or octal and/or characters. Either overwrite bytes in either of the four bases or characters or dump to a file and edit the resulting text file with any text editor, then fb can translate from either of the four bases back into a binary file. In summary, fb is a versatile tool for binary file creation, manipulation, and examination.