Open Source Java Systems Administration Software for Linux

Pretty Damn Quick (PDQ) analytically solves queueing network models of computer and manufacturing systems, data networks, etc., written in conventional programming languages. Generic or customized reports of predicted performance measures are output.

ForEachBox is a scripting and automation tool for various Cisco devices. It supports the command line interface of the Cisco Nexus, IOS and ASA series. It is implemented as a Java GUI and requires the Plink tool that is included in PuTTY.

Are you tired of keeping your bookmark collections up-to-date for each of your browsers separately? Groab helps you by merging the bookmark collections of several browsers (Konqueror, Netscape, IE) and redistributing the merged collection.

Hannibal is a tool to help monitor and maintain HBase-Clusters that are configured for manual splitting. While HBase provides metrics to monitor overall cluster health via JMX or Ganglia, it lacks the ability to monitor single regions in an easy way. This information is essential when your cluster is configured for manual splits, especially when the data growth is not uniform. This tool tries to fill that gap by answering the following questions: How well are regions balanced over the cluster? How well are the regions split for each table? How do regions evolve over time? See https://github.com/sentric/hannibal

Liberatio is open source systems management built on the Java platform. Liberatio currently collects an asset inventory and communicates via JXTA - allowing communication regardless of network obstacles.

mkpass is a simple command line utility to generate secure random passwords. You can easily redirect these to a clipboard or copy and paste as needed. I use a password manager and generate random passwords every time I need one. And while most password managers include a generator, there are times I need one outside of that. The code is written in java so it should run on any OS that supports it. Lastly, the idea and core code came from a Wikipedia article. I just took this and expanded upon it. https://en.wikipedia.org/wiki/Random_password_generator This is a single executable JAR file. While you will need Java installed, there is no need to install this program. Just download the JAR file, please it somewhere convenient, and execute it from the command line: java -jar mkpass.jar See home page for additional details and usage instructions. https://github.com/frossm/mkpass

Code for reference implementations of identity brokers and simple single sign-on (SSO) mechanisms that utilize XDI and link contracts to manage the dataweb.

Tstconfig is a system administration tool that tests (a large number of) configuration files automatically. Mainly intended for security, it can be used to test any configuration file on a Linux system. The distribution includes examples for testing sshd, ufw, fail2ban, apache, php, mysql, /etc/passwd, and more.

Westhawk's lightweight SNMP stack in Java with extensive examples. The stack provides manager functionality for SNMPv1, SNMPv2c and SNMPv3 (authentication and privacy)! It is capable of sending and receiving PDUs, but has limited agent functionality.

A (really pretty) regular expression testing tool.