System tagged posts

System Cleanup and Maintenance

It is important to keep computer systems running at optimal performance. However, the Linux system may accumulate cache and unneeded files, need updates, retain old data, etc. Thankfully, there are many ways Linux users can clean their system and maintain the best performance. In addition, there are ways to optimize a freshly installed system.

The first way to better maintain and optimize the system is to properly take care of the package management system. Remove (or disable) any repositories/PPAs that are not needed and not used. If the users on the system never download source code from the repos, then disable all “Source” repositories and PPAs. Doing so reduces the size of the local indexes that are created when updating the repo list (such as “apt-get update”)...

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Cleaning up Ubuntu 14.10,14.04,13.10 system

We have already discussed Cleaning up a Ubuntu GNU/Linux system and this tutorial is updated with new ubuntu versions and more tools added.

If you want to clean your ubuntu machine you need to follow these simple steps to remove all unnecessary junk files.

Remove partial packages

This is yet another built-in feature, but this time it is not used in Synaptic Package Manager. It is used in the Terminal. Now, in the Terminal, key in the following command

sudo apt-get autoclean

Then enact the package clean command. What this commnad does is to clean remove .deb packages that apt caches when you install/update programs. To use the clean command type the following in a terminal window:

sudo apt-get clean

You can then use the autoremove command...

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How to Stream Content from a Linux System to Chromecast

Chromecast dongle

chromecast app loginChromecast is one of the most used devices in my household. After using it for over a year now, I believe there is no longer a market for the so-called ‘smart TV’. Inexpensive devices like Chromecast can turn any HDMI-enabled TV into a smart TV with immense possibilities to expand its features.

Google continues to add new features to Chromecast, except for one much-needed feature: native support for playback of local content. There is no _easy_ way to stream content sitting on your smart phone or desktop to Chromecast. Let me be honest, there are some Chrome apps which can play videos stored on your computer, but none offer a desirable solution.

However, nothing is impossible for a Linux user. 

What’s desirable? The Chromecast is plugged into the TV in the living room whereas my PCs a...

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Slow System? iotop Is Your Friend

Back in 2010, Kyle Rankin did an incredible series on Linux Troubleshooting. In Part 1, he talked about troubleshooting a system struggling with a high load. At that point, I’d already been a system administrator for more than a decade, but it was the first time I’d ever heard of iotop.

If you weren’t a subscriber in 2010, I highly recommend you read Kyle’s entire series. Either way, I use iotop so often, I felt it was prudent to mention it again all these years later. The concept is pretty simple. It’s like the top program, but instead of CPU and memory usage, it monitors disk I/O. If you have a system that is extremely slow to respond, but can’t seem to figure out what is going on, give iotop a try...

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What Are Useful CLI Tools for Linux System Admins

System administrators (sysadmins) are responsible for day-to-day operations of production systems and services. One of the critical roles of sysadmins is to ensure that operational services are available round the clock. For that, they have to carefully plan backup policies, disaster management strategies, scheduled maintenance, and security aud… – All Content

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LiVES – The video editing system

LiVES mixes realtime video performance and non-linear editing in one professional quality application. It will let you start editing and making video right away, without having to worry about formats, frame sizes, or framerates. It is a very flexible tool which is used by both professional VJ’s and video editors — mix and switch clips…

Ubuntu Geek

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gWakeOnLan – Turn the machines on through the Wake On LAN system

gWakeOnLan is a free application to turn the machines on through the Wake On LAN system, regardless of their installed operating system…
Ubuntu Geek

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