GeoToad is a geocaching query tool to help speed up the boring part of geocaching: choosing the cache and collecting the data. It allows you to generate any kind of complex query you want, and the program will go and poll the Geocaching query, grab the data, and output it to any format you want. The Geocache info can be synced straight to your GPS, iPod, PDA, or cell phone in over 20 different formats.
GARP (Gnome ARP) is an ARP monitoring program written on Gnome with the GTK toolkit and Ruby. It takes ARP tables and some system variables via SNMP and ARP protocols and determines whether any machines have changed their IP address. It is useful for detecting new machines on the network and detecting which machine have changed addresses. It is intended especially for network admins.
Bind DLZ on Rails is a Web-based user interface for managing BIND with the bind-dlz extensions on a MySQL 5.0 backend. BIND is a DNS server, and the bind-dlz extensions enhance BIND with support for database backeneds. This simplifies the management of thousands of zones and provides added redundancy (by way of database replication).