startvnc.pl is a script to start VNC on a system-determined port. Placed in /etc/skel/bin/ or the like, it allows each user to start VNC on his own port without having to guess or use trial-an-error on which port he should use. Based on his numerical ID (from /etc/password), this script autogenerates a static port number which should not change.
SHA_HTTP_Auth is a Perl module which allows secure HTTP Authentication using salted password hashes stored in MySQL or another database. Since (presumably) all Web traffic is wrapped in SSL and the passwords themselves are not plaintext, HTTP Basic Authentication is all that's needed to ensure secure Web logins to a protected site. Furthermore, since the user is authenticated by the Web server at layer 4, the need for session cookies is eliminated.
iSPARQL is the OpenLink interactive SPARQL Query Builder, a utility for building and executing SPARQL queries. It may be used on any standard SPARQL endpoint, but can utilize the full power of Virtuoso Sponger when connected to a Virtuoso endpoint. The queries, together with various parameters, may be saved in a WebDAV-capable file server.
Goozzee allows you to easily create, browse, and share knowledge bases and documentation repositories using topic maps. It can be used standalone with an embedded database or in multi-user mode with a MySQL or MariaDB server to store its data. It can store notes and files of any type and size, create links between notes and files, browse through your knowledge base by following these links, or search notes using the fast and powerful full text search engine.
DHCPD Configuration Editor (DCE) is a Web service that allows you to update MAC addresses in the dhcpd.conf of an ISC DHCP server. It can load a dhcpd.conf file from a server, save a modified dhcpd.conf file to a server, import a dhcpd.conf file from the local filesystem, export a modified dhcpd.conf to the local filesystem, and change the MAC address of previously declared host entries. It can be used with the minimalist General Configuration Form Manager server, or with Apache and its PHP module.
PAFCalc (Planted Aquarium Fertilizers Calculator) for Android is a useful utility that helps in calculations related to DIY fertilizers for planted aquariums. It has been completely written with the Android developer studio, which should ensure portability to tablets and smartphones. The app doesn't access any external functions on your device.