Simple
No-nonsense NZB download manager.

Runs everywhere
Windows, MacOS X and Linux versions.

UNRAR & PAR
Handles RAR and PAR2 files

Unbeatable price
Free!

Streaming
Preview media files while you download.

Secure
Supports SSL encryption and IPv6

Want to know what's really going on with your server? Then you need to know these essential commands. Once you've mastered them, you'll be well on your way to being an expert Linux system administrator.
Depending on the Linux distribution, you can run pull up much of the information that these shell commands can give you from a GUI program. SUSE Linux, for example, has an excellent, graphical configuration and management tool, YaST, and KDE's KDE System Guard is also excellent.
However, it's a Linux administrator truism that you should run a GUI on a server only when you absolutely must. That's because Linux GUIs take up system resources that could be better used elsewhere. So, while using a GUI program is fine for basic server health checkups, if you want to know what's really happening, turn off the GUI and use these tools from the Linux command shell.

Technology has done amazing things for music in the last decade. Sure, the large, traditional industry players are making less money, but there are now vastly more players, and the ecosystem that's emerging looks pretty amazing.

Despite all the music streaming services and startups out there, there still exists a major problem: Each one is its own little island of content, disconnected from the rest. This leaves the user in the unfortunate position of having to hunt and peck around the Web to find different music.

No matter how hard it tries, no one individual digital music service is ever going to have a 100% comprehensive library. There are complex rights licensing issues, high costs and hesitant artists, for starters.

Meanwhile, the number of artists is exploding as old structures crumble and record labels become less relevant. A band you've never heard could be recording an album you're going to love right now and upload it to SoundCloud next week, with or without the help of a label. The video they post on YouTube could be so well-crafted that it goes viral and lands in your Facebook news feed next Tuesday. This is the new radio.

GNU parallel is a shell tool for executing jobs in parallel using one or more computers. A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU parallel can then split the input and pipe it into commands in parallel.

If you use xargs and tee today you will find GNU parallel very easy to use as GNU parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel.

GNU parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU parallel as input for other programs.

For each line of input GNU parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU parallel can often be used as a substitute for xargs or cat | bash.

Although Puppet Enterprise gives you the wonderful tools to automate your Linux administration, you still cannot deploy a server with a single command. With the following script, you can.

Why is this so cool?

When, for instance, a new Tomcat server is needed, I create a DNS entry for that server and give a single command and get some coffee. Before it has cooled down enough to drink, the developer has his Tomcat-app deployed and the server is operational. (It takes about 8 minutes to get from scratch to a fully operational server.)

Mendeley is a free reference manager and academic social network that can help you organize your research, collaborate with others online, and discover the latest research.

Automatically generate bibliographies
Collaborate easily with other researchers online
Easily import papers from other research software
Find relevant papers based on what you’re reading
Access your papers from anywhere online
Read papers on the go, with our new iPhone app

Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.

Runs on Windows, Linux and Mac OS X. Gephi is open-source and free.

KNIME, pronounced [naim], is a modern data analytics platform that allows you to perform sophisticated statistics and data mining on your data to analyze trends and predict potential results. Its visual workbench combines data access, data transformation, initial investigation, powerful predictive analytics and visualization. KNIME also provides the ability to develop reports based on your information or automate the application of new insight back into production systems. KNIME Desktop is open-source and available under GPL license. It can be extended to include professional support and large enterprise functionality, providing the best of both worlds. Take a look at KNIME Desktop, or better yet simply download it and use it for free – try it!

Welcome to the Dell Linux Engineering Web. This site provides information that may be useful regarding your usage of Linux on your Dell equipment. While Dell partners with Red Hat, Novell / SuSE, and Ubuntu, many of our customers choose to run other distributions. Though we cannot have telephone support for all of the different flavors and configurations and patches you may be using, since these have not gone through our standard testing practices, we certainly can foster other methods that may provide you with help and resources. This website, along with our highly popular mailing lists, allow us to help you use your Dell equipment however you choose.

About

Hi, I’m Mickey and this is my blog about mastering Emacs. I’ve been using Emacs for eight years and I’d like to share with you all the things I’ve learned over the years.

The blog will cover all facets of Emacs and will be suitable for beginners and — I hope — experts alike.

Markdown is a simple markup language used to convert plain text into HTML.

MultiMarkdown is a derivative of Markdown that adds new syntax features, such as footnotes, tables, and metadata. Additionally, it offers mechanisms to convert plain text into LaTeX in addition to HTML.

peg-multimarkdown is an implementation of MultiMarkdown derived from John MacFarlane's peg-markdown. It makes use of a parsing expression grammar (PEG), and is written in C. It should compile for most any (major) operating system.

Thanks to work by Daniel Jalikut, MMD no longer requires GLib2 as a dependency. This should make it easier to compile on various operating systems.

Amazon EC2 is among the more potent items in Amazon's web services arsenal. You've probably heard of many of the other services such as S3 for storage and FPS for payments. EC2 is all about the "elastic compute cloud." In layman's terms, it's a server. In slightly less layman's terms, EC2 lets you easily run and manage many instances (like servers) and given the proper software and configurations, have a scalable platform for your web application, outsource resource-intensive tasks to EC2 or for whatever you would use a server farm.

One minor issue with EC2 is that they supply the kernel, and that already caused difficulties with my first EC2 tutorial – the image I created doesn’t let you create a new snapshot from a running image since the EC2 kernel lacks loopback support, and I didn’t supply a matching kernel module.

Amazon has a nice guide on how to do it – here is a gentoo-specific one.

The Amazon Linux AMI is a supported and maintained Linux image provided by Amazon Web Services for use on Amazon Elastic Compute Cloud (Amazon EC2). It is designed to provide a stable, secure, and high performance execution environment for applications running on Amazon EC2. It also includes packages that enable easy integration with AWS, including launch configuration tools and many popular AWS libraries and tools. Amazon Web Services provides ongoing security and maintenance updates to all instances running the Amazon Linux AMI. The Amazon Linux AMI is provided at no additional charge to Amazon EC2 users.

Guard is a command line tool to easily handle events on file system modifications.

If you have any questions please join us in our Google group or on #guard (irc.freenode.net).
Features

FSEvent support on Mac OS X.
Inotify support on Linux.
Directory Change Notification support on Windows.
Polling on the other operating systems.
Automatic and super fast file modification detection when polling is not used. Even new and deleted files are detected.
Support for visual system notifications.
Tested against Ruby 1.8.7, 1.9.2, 1.9.3, REE and the latest versions of JRuby & Rubinius.

Guard watches files and runs a command after a file is modified. This allows you to automatically run tests in the background, restart your development server, reload the browser, and more.

Anki is a program which makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.

Anyone who needs to remember things in their daily life can benefit from Anki. Since it is content-agnostic and supports images, audio, videos and scientific markup (via LaTeX), the possibilities are endless. For example:

learning a language
studying for medical and law exams
memorizing people's names and faces
brushing up on geography
mastering long poems
even practicing guitar chords!

Graylog2 features and components presentation

Graylog2 is a free and open source log management solution that provide you a centralized repository and access to all your infrastructures logs. All the logs are stored in MongoDB, a scalable and high-performance database.

Graylog2 is composed of a server written in Java that will accept Syslog messages via TCP, UDP or AMQP (Advanced Message Queuing Protocol). AMPQ is an open standard for Messaging Middleware that allow different platforms in different languages to send messages to one another. Graylog2 is also using Drools Expert to evaluate all incoming messages against user defined rule file.

Just last week, Amazon Web Services rolled out the first production release of the Amazon Linux AMI and with it some powerful new features for CloudFormation. There’s a lot there (like updating stacks and IAM integration) but we at DevStructure are most excited about Application Bootstrapping.

The new Amazon Linux AMI comes with the aws-cfn-bootstrap package, which can unpack tarballs, place configuration files, install packages, and restart services at provision time. Sound familiar? That’s right, this new section of the CloudFormation template language uses the blueprint(5) file format!

FreePBX is an easy to use GUI (graphical user interface) that controls and manages Asterisk, the world's most popular open source telephony engine software. FreePBX has been developed and hardened by thousands of volunteers over tens of thousands man hours. FreePBX has been downloaded over 5,000,000 times and estimates over 500,000 active phone systems. If you don't know about FreePBX, you are probably paying too much for your phone system.

Blueprint
Blueprint reverse-engineers servers

Easy configuration management.
Detect relevant packages, files, and source installs.
Generate reusable server configs.
Convert blueprints to Puppet or Chef.
No DSLs, no extra servers, no workflow changes.

Blueprint looks inside popular package managers, finds changes you made to configuration files, and archives software you built from source. It runs on Debian- and RPM-based Linux distros with Python >= 2.6 and Git >= 1.7.
Blueprint I/O moves blueprints around

Centralized configuration management.
Export and backup server configurations.
Push and pull blueprints anywhere.
Bootstrap servers painlessly.

Blueprint I/O pushes and pulls blueprints to and from a Blueprint I/O Server, making it easy to use blueprints anywhere. DevStructure provides a free Blueprint I/O Server at https://devstructure.com, which stores blueprints in Amazon S3. Alternatively, you can build your own backend server implementing the Blueprint I/O API.

What is ControlTier? ControlTier is a community driven, cross-platform software system used to coordinate application service management activities across multiple nodes and application tiers. The project is fully open source and many of the project contributions come from DTO Solutions ongoing consulting work for large scale e-commerce, software-as-a-service, and financial services operations. Go to Installation to get and install the software.

Your infrastructure has hundreds of log files spread across dozens of machines. For monitoring deployments and troubleshooting, you need to instantly see composite streams of log messages in a single user interface.
How does Log.io work?

Harvesters watch log files for changes, send new log messages to the server, which broadcasts to web clients. Users create stream and history screens to view and search log messages.
Low latency, no persistence

Log.io has no persistence layer. Harvesters are informed of file changes via inotify, and log messages hop from harvester to server to web client via socket.io. The result is fast; internal benchmarks have exceeded 5000 messages/sec.

What is Ganglia?

Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. It leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization. It uses carefully engineered data structures and algorithms to achieve very low per-node overheads and high concurrency. The implementation is robust, has been ported to an extensive set of operating systems and processor architectures, and is currently in use on thousands of clusters around the world. It has been used to link clusters across university campuses and around the world and can scale to handle clusters with 2000 nodes.

Did you ever want to keep track of how much time you really spend on all of your projects? Sure, you can try to remember to keep running estimates of your time in the hope that you can aggregate those estimates later into some meaningful data. But sometimes you forget, or an error creeps into your estimate. And those errors add up. Quickly.

You can try some tracking software that depends on you to start and stop timers. But what happens if you forget to start or stop one of those timers?

What you need is a passive system that will take care of all of this for you, so you can focus on the actual work, which is where WatchTower comes into play.

WatchTower runs in the background and keeps track of the time spent editing each file with one of the supported editors (listed below). Since WatchTower keeps track of the time spent on each file, and it knows which project each file belongs to, you can view details and statistics on each project, right down to the file level.

Sphinx is an open source full text search server, designed from the ground up with performance, relevance (aka search quality), and integration simplicity in mind. It's written in C++ and works on Linux (RedHat, Ubuntu, etc), Windows, MacOS, Solaris, FreeBSD, and a few other systems.

Sphinx lets you either batch index and search data stored in an SQL database, NoSQL storage, or just files quickly and easily — or index and search data on the fly, working with Sphinx pretty much as with a database server.

A variety of text processing features enable fine-tuning Sphinx for your particular application requirements, and a number of relevance functions ensures you can tweak search quality as well.

AFS is a distributed filesystem product, pioneered at Carnegie Mellon University and supported and developed as a product by Transarc Corporation (now IBM Pittsburgh Labs). It offers a client-server architecture for federated file sharing and replicated read-only content distribution, providing location independence, scalability, security, and transparent migration capabilities. AFS is available for a broad range of heterogeneous systems including UNIX, Linux, MacOS X, and Microsoft Windows

The oVirt Project is an open virtualization project providing a feature-rich server virtualization management system with advanced capabilities for hosts and guests, including high availability, live migration, storage management, system scheduler, and more.

collectd is a daemon which collects system performance statistics periodically and provides mechanisms to store the values in a variety of ways, for example in RRD files.
What does collectd do?

collectd gathers statistics about the system it is running on and stores this information. Those statistics can then be used to find current performance bottlenecks (i.e. performance analysis) and predict future system load (i.e. capacity planning). Or if you just want pretty graphs of your private server and are fed up with some homegrown solution you're at the right place, too ;).

Usually one graph says more than a thousand words, so here's a graph showing the CPU utilization of a system over the last 60 minutes:

Do you need your machines to automatically alert you when new packages are available? apticron might be just the package you've been looking for.

apticron is a simple shell script that is called from cron once a day.

Why Puppet

As system administrators acquire more and more systems to manage, automation of mundane tasks is increasingly important. Rather than develop in-house scripts, it is desirable to share a system that everyone can use, and invest in tools that can be used regardless of one’s employer. Certainly doing things manually doesn’t scale.

Reposado, together with Python, the "curl" binary tool and a web server such as Apache 2, enables you to host a local Apple Software Update Server on any hardware and OS of your choice.

Reposado contains a tool (repo_sync) to download Software Update catalogs and (optionally) update packages from Apple's servers, enabling you to host them from a local web server.

Additionally, Reposado provides a command-line tool (repoutil) that enables you to create any arbitrary number of "branches" of the Apple catalogs. These branches can contain any subset of the available updates. For example, one could create "testing" and "release" branches, and then set some clients to use the "testing" branch catalog to test newly-released updates. You would set most of your clients to use the "release" branch catalog, which would contain updates that had been through the testing process.

radmind - A suite of Unix command-line tools and a server designed to remotely administer the file systems of multiple Unix machines. For Mac OS X, there's also a graphical interface.

At its core, radmind operates as a tripwire. It is able to detect changes to any managed filesystem object, e.g. files, directories, links, etc. However, radmind goes further than just integrity checking: once a change is detected, radmind can optionally reverse the change.

QTM is a blogging client which is presently capable of composing, formatting and submitting blog entries to a weblog. QTM will work with blogs based on most of the major blogging systems available today: Wordpress (including wordpress.com), Movable Type, Drupal and so on.