cmus is a small, fast, and powerful console music player for Linux and *BSD. It supports almost all common file formats, SHOUTcast/Icecast streaming, and multiple output plugins. cmus features multiple media library views, a playqueue, a directory browser, powerful filters, and vi-style search and keybindings. It also features gapless playback, ReplayGain, Unicode support, and customizable color schemes.
Vocatra is a console-based vocabulary trainer. It takes one or more vocabulary files, queries you for each word, and lets you try to give the correct answer. You can enable different learning modes. If you prefer to learn sequentially it has an order mode. Otherwise, there is also a random mode available.
check_writable is a Nagios plugin that checks if one or more directories are writable by checking that the supplied directory is indeed a directory, checking if the the filesystem permissions are OK, creating a temporary file, writing random data to the temporary file, and reading it back. It returns a critical status if one of the tests fails.
A 'honeypot' is designed to detect server-side attacks. In contrast, a 'honeyclient' is designed to detect client-side attacks. Specifically, a honeyclient is a dedicated host that drives specially instrumented applications to access remote servers to see if those servers are behaving in a malicious manner (by compromising the client). Honeyclients can proactively detect exploits against client applications without known signatures. This framework uses a client-server model with SOAP messaging as the primary communication method, and uses the free version of VMware Server as a means of virtualizing the client environment.
A reasonable way to achieve a long term backup of OpenPGP (GnuPG, PGP, etc) keys is to print them out on paper. Due to metadata and redundancy, OpenPGP secret keys are significantly larger than just the "secret bits". In fact, the secret key contains a complete copy of the public key. Since the public key generally doesn't need to be backed up in this way (most people have many copies of it on various keyservers, Web pages, etc), only extracting the secret parts can be a real advantage. Paperkey extracts just those secret bytes and prints them. To reconstruct, you re-enter those bytes (whether by hand or via OCR), and paperkey can use them to transform your existing public key into a secret key.
System and Process Monitor in Java provides a JNI (Java Native Interface) implementation for monitoring global system resources and processes (outside JVM) via a unified (cross-platform) interface. The Java interface and all native libraries are compiled into a single JAR and are loaded transparently on any architecture upon request. It should be easy to embedd this code into your Java applications, either as a separate JAR or as one single application archive.