sbox is a CGI wrapper script that allows Web site hosting services to safely grant CGI authoring privileges to untrusted clients. In addition to changing the process privileges of client scripts to match their owners, it goes beyond other wrappers by placing configurable ceilings on script resource usage, avoiding unintentional and intentional denial of service attacks. It also optionally allows the Webmaster to place clients' CGI scripts in a chroot'ed shell restricted to the author's home directories.
sendPGPMail.cgi is a small CGI script for sending an encrypted PGP email message to a predefined receiver from an HTTPS secured Web page. The typical use of this script is to provide the users of a secure Web site the possibility to send a secure email to a predefined employee of a company. The CGI script gets its input from an HTML form and passes it on to gpg. The message and its attachments are encrypted using the PGP public key of the predefined receiver.
Sesame-wifi is a hot-spot management tool using dynamic firewall rules (netfilter/iptables) with an Apache-SSL interface based on Python-CGI. There are 2 kind of users. Normal users are supposed to have a static IP and MAC address, and their connection time can be summed. "Ticket" users are time-limited: they are allowed a connection for a certain time, after which their connection is destroyed.
silk web is a Web-based hypertext tool with an emphasis on linking. Creating links between nodes in silk requires just one mouse click -- you never need to manually type node identifiers (e.g. URLs or CamelCase node titles). It can also track links to the external Web, and you can manage these links with the same one-click functionality. It works well for organizing ideas and the connections between them (it was designed for personal note-taking), though it can also function as a public space for collaboration, much like a Wiki (like a Wiki with smooth linking).
suPHP is a combination of an Apache module (mod_suphp) and an executable which provides a wrapper for PHP. With both together, it is possible to execute PHP scripts with the permissions of their owner without having to place a PHP binary in each user's cgi-bin directory. suPHP doesn't need Apache's suExec, and provides a logging function.