A simple Echo server (RFC 862) written in Java. It works via HTTP/1.0. It has several modes of operation. For further information run it with the --help option. Use telnet or a web browser to access the server.
This actually extends the Socket Java class giving an opportunity to go via an HTTP proxy server with HTTP Basic authentication (BA). By itself, this program would be useful for receiving information in a command-line interface (CLI). Feel free to find another use for this class.
JINX is a Java-based multi-user Unix-like environment that allows each user to remotely run their own java programs. Also the home of CurseHTTPD, a non-blocking java HTTPserver.
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Rock: Crashed Plane (R2) (http://www.dillfrog.com/games/r2/) is an open source multi-user dungeon (dimension, or sometimes domain) coded in the perl programming language and licensed under the GNU General Public License.
The majority of the code was open-sourced as a courtesy when the original server was taken offline. The codebase is largely abandoned, and has not been updated to follow best practices.