Linux

Are You Sure This Is the Source Code?

Software freedom is an interesting concept, but being able to study the source code is useless unless you are certain that the binary you are running corresponds to the alleged source code. It should be possible to recreate the exact binary from the source code, but a simple analysis shows that this is very hard

Ethtool and iftop

Ethtool allows you to modify your Ethernet adapter settings inside of Linux. Fun with ethtool article tells you how you can use it for various tasks. You can easily get driver information and statistics with command: ethtool -i eth0 Ever had to trace what physical network card was recorded in linux as ethX? Follow the

sshpass

The recommended way when you need to do SSH communications (let it be SSH or SCP) from a script is to use secure public key authentiaction to authenticate with the other end. With this you can open SSH connections without putting any passwords to your scripts. But sometimes the best solution is what you can

Arduino Yún has WiFi connectivity and Linux

Arduino platform seems to interest many Internet of Things developers. There are now many Arduino compatible platforms with wireless connectivity as you can see in my New interesting Arduino platforms article and it’s comment. Also Google has done some Arduino based IoT. Arduino launches Yún for WiFi connectivity under Linux article tells that Arduino has

Unix box in pocket

Addressable markets for high-end phones article has some interesting statistics: There were about 5.2bn adults on earth at the end of 2012 and roughly 1.1bn of them had ’smartphones’ at the end of 2012. Around 900m of smartphones ran either the iOS or Android. Both iOS and Android are based on Unix technology (iOS is

Four primary principles of success of Linux

Jim Zemlin at TEDx: What We’ve Learned from Linus Torvalds article tells that Linux Foundation Executive Director Jim Zemlin was recently invited to speak at TEDx about what the technology industry has learned from Linux, and specifically its creator Linus Torvalds, and how some of those lessons can be applied to a variety of efforts

Linux system monitoring

Need to monitor Linux server performance? Try these built-in commands and a few add-on tools mentioned in 20 Linux System Monitoring Tools Every SysAdmin Should Know article. Most Linux distributions are equipped with tons of monitoring.

Free and Open—and Their Opposites

Free and Open—and Their Opposites article gives a a linguistic look at some tenets of Linux. I found it interesting reading because I have written articles to magazines on open source software to magazines and I have needed to think about the right words to use for writing. Here are some information picked from that

How to Deploy A Server

How to Deploy A Server article discusses the current state of the art when it comes to deploying servers. Through the years, the ways that sysadmins have installed and configured servers has changed as they have looked for ways to make their jobs easier. The Beginning: by Hand First Generation: Images Second Generation: the Post-Install

Enterprise Network Firewall trends

2013 Gartner Magic Quadrant for Enterprise Network Firewalls give a view to current firewall markets: Gartner states, “Advances in threats have driven mainstream firewall demand for next- generation firewall capabilities. Buyers should focus on the quality, not quantity, of the features and the R&D behind them. This market includes mature vendors and new entrants.” Palo