I've always been a fan of putting aftermarket firmware on consumer-grade routers. Whether it's DD-WRT, Tomato, OpenWRT or whatever your favorite flavor of "better than stock" firmware might be, it...
Whenever a server is accessible via the Internet, it's a safe bet that hackers will be trying to access it. Just look at the SSH logs for any server you use, and you'll surely find lots of "...
SSH is a Swiss Army knife and Hogwart's magic wand all rolled into one simple command-line tool. As often as we use it, we sometimes forget that even our encrypted friend can be secured more than it...

Multitenant Sites

For some time now, there has been tremendous growth in the world of Web applications. It's quite amazing to see what you can do just via a Web browser—not only can you buy just about anything, but also a growing number of sites offer "software as a service", often abbreviated as SaaS. The idea is that in exchange for a monthly service fee, you get access to a service. more>>

Linux for Astronomers

I've looked at specialty distributions that were created for engineers and biologists in previous articles, but these aren't the only scientific disciplines that have their own distributions. So in this article, I introduce a distribution created specifically for astronomers, called Distro Astro. more>>

Elementary, My Dear Linux User

I suspect there are as many Ubuntu-based Linux distributions as there are all other distributions combined. Many of them are designed with a specific purpose in mind. Whether the desire is for a different looking desktop, custom kernel or just pre-installed packages, there's probably a version of *buntu out there to fit every need. more>>

Real-Time Rogue Wireless Access Point Detection with the Raspberry Pi

Years ago, I worked for an automotive IT provider, and occasionally we went out to the plants to search for rogue Wireless Access Points (WAPs). A rogue WAP is one that the company hasn't approved to be there. So if someone were to go and buy a wireless router, and plug it in to the network, that would be a rogue WAP. more>>

Non-Linux FOSS: Homebrew

I use OS X quite often during my day job. I'm able to tolerate it largely due to the terminal. If I couldn't do my work with green text on a black background, I think I'd go crazy (or crazier). Unfortunately, OS X doesn't come with all the command-line tools I need. That's where Homebrew comes in to save the day. more>>

Many Drives, One Folder

RAID is awesome, and LVM is incredibly powerful, but they add a layer of complexity to the underlying hard drives. Yes, that complexity comes with many benefits, but if you just want to spread your files across multiple storage locations, there's a much easier way. more>>

You're the Boss with UBOS

UBOS is a new Linux distro that I like for two reasons. One is that it works toward making it easy for muggles to set up their own fully independent personal home servers with little or no help from wizards. The other is that it comes from my friend Johannes Ernst. more>>

February 2015 Issue of Linux Journal: Web Development

Under Construction

I think it was in the late 1990s, possibly into the 2000s, when it was common to put a cutesy graphic on the bottom of your Web page letting everyone know your site more>>

PostgreSQL, the NoSQL Database

One of the most interesting trends in the computer world during the past few years has been the rapid growth of NoSQL databases. The term may be accurate, in that NoSQL databases don't use SQL in order to store and retrieve data, but that's about where the commonalities end. NoSQL databases range from key-value stores to columnar databases to document databases to graph databases. more>>

HPC Cluster Grant Accepting Applications!

Silicon Mechanics, Inc. has announced the open submission period for its 4th annual Research Cluster Grant Program.  This competitive grant will award two complete high performance compute clusters to two institutions of higher education and research. The competition is open to all US and Canadian qualified post-secondary institutions, university-affiliated research institutions, non-profit research institutions, and researchers at federal labs with university affiliations.

more>>

Sharing Admin Privileges for Many Hosts Securely

The problem: you have a large team of admins, with a substantial turnover rate. Maybe contractors come and go. Maybe you have tiers of access, due to restrictions based on geography, admin level or even citizenship (as with some US government contracts). more>>

Red Hat Enterprise Linux 7.1 beta available on IBM Power Platform

Two open source titans put their rings together and joined forces to announce that Red Hat Enterprise Linux v7.1 beta is now available on the IBM Power Development platform. Last month Red Hat announced that v7.i beta supported IBM Power Systems based on little endian mode. more>>

Designing with Linux

3-D printers are becoming popular tools, dropping in price and becoming available to almost everyone. They can be used to build parts that you can use around the house, but more and more, they also are being used to create instruments for scientific work. more>>

Wondershaper—QOS in a Pinch

In past articles, I've discussed my BirdCam setup and how it automatically archives video footage from my bird feeders to YouTube every night. That's a really cool process, but unfortunately, it saturates my upstream bandwidth in the evening. more>>

Ideal Backups with zbackup

Data is growing both in volume and importance. As time goes on, the amount of data that we need to store is growing, and the data itself is becoming more and more critical for organizations. It is becoming increasingly important to be able to back up and restore this information quickly and reliably. Using cloud-based systems spreads out the data over many servers and locations. more>>

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