Tableutil is a utility for converting, aggregating, and performing operations (currently unions, differences, complements, and intersections) on lists of IP addresses. Its primary use is to convert files into a format pfctl(8) can read. It can read plain-text files with ranges (18.104.22.168-22.214.171.124), CIDR-style networks (192.168.0.0/24), single addresses (242.242.242.242), or host names (one.two.com). It can also read p2b files, the preferred file-format of PeerGuardian.
Yxorp is a reverse proxy for HTTP. All the fields in requests can be checked and modified by rules. Load balancing, virtual hosting, multiple TCP ports, and SSL are supported. The configuration can be modified on-line. Yxorp can be used to protect Web sites, place pages behind a login, rewrite URLs, etc.