Distributed Checksum Clearinghouse (DCC) is a system of clients and servers that collect and count checksums related to mail messages. The counts can be used by SMTP servers and mail user agents to detect and reject bulk mail. DCC servers can exchange common checksums. The checksums include values that are "fuzzy", or constant across common variations in bulk messages.
Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. Knocker it is available for Linux, FreeBSD, many Unix platforms, and Windows 95/98/2000. Both a console version and a GTK+ version are available.
BitTorrent is a tool for copying files from one machine to another. FTP punishes sites for being popular. Since all uploading is done from one place, a popular site needs big iron and big bandwidth. With BitTorrent, clients automatically mirror files they download, making the publisher's burden almost nothing.
Socket++ library defines a family of C++ classes that can be used more effectively for using sockets than directly calling the underlying low-level system functions. One distinct advantage of Socket++ is that it has the same interface as that of the iostream so that the users can perform type-safe input/output.
Kelly is a JBuilder 4 & 5 plugin that makes it easy to deploy EJBs to JOnAS 2.x. Kelly can be installed and run with other JBuilder 4 & 5 plugins such as BEA WebLogicServer 5.1, BEA WLS 6, IBM WebSphere 3.5, Borland AS 4.5, etc. Kelly provides services to Jbuilder 4 & 5 java developers such as the ability to create any XML deployment files required by JOnAS 2.x, hot loading and unloading of any EJBs to JOnAS (only for JBuilder 5), control of JOnAS start-up from JBuilder 4 & 5, and the supply of JOnAS word dictionaries to JBuilder 4 & 5 in order to enhance the JBuilder 4 & 5 text completion services.