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How To Add Swap Space on CentOS 7

Thu, 12/13/2018 - 15:15
Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are moved from the RAM to the swap space. This tutorial explains how to add a swap file on CentOS 7 systems.

PDFArranger: Merge, Split, Rotate, Crop Or Rearrange PDF Documents (PDF-Shuffler Fork)

Thu, 12/13/2018 - 10:23
PDFArranger is an application for merging or splitting PDF files, as well as rotating, cropping and rearranging PDF document pages, using a simple graphical user interface. The tool, which is a graphical front-end for PyPDF2, is a fork of PDF-Shuffler that aims to "make the project a bit more active".

About ncurses Colors

Thu, 12/13/2018 - 08:00
Why does ncurses support only eight colors? If you've looked into the color palette available in curses, you maywonder why curses supports only eight colors.

How to Set Up Mattermost Slack Alternative on a Ubuntu Server

Thu, 12/13/2018 - 07:35
Mattermost is an excellent open-source and self-hosted replacement for chat software like Slack. Learn how to install it on Ubuntu with Docker.

How to Install Jitsi Meet Video Conference Platform on Ubuntu

Thu, 12/13/2018 - 06:21
Jitsi Meet is a free, open source, secure, simple and scalable video conferencing solution that you use as a standalone app or embed in your web application. The Jitsi Meet client runs in your browser. In this tutorial, we will be going to learn how to install Jitsi Meet video conferencing service on an Ubuntu 18.04 server.

Lessons in Vendor Lock-in: Shaving

Thu, 12/13/2018 - 05:07
Freedom is powerful. When you start using free software, a whole world opens upto you, and you start viewing everything in a different light. You startnoticing when vendors don't release their code or when they try to lock youin to their products with proprietary protocols. These vendor lock-in techniquesaren't new or even unique to software. Shaving companies long have tried to forcecustomer loyalty with incompatible proprietary products that make you stay on anupgrade treadmill.

Taking notes with Standard Notes

Thu, 12/13/2018 - 03:52
Online note-taking tools seem to have bloomed like 100 flowers. The tallest ones in that garden are usually proprietary, closed source applications like Evernote, Zoho Notebook, Google Keep, and Notion.read more

How to install Redis on a Raspberry Pi using Docker

Thu, 12/13/2018 - 01:24
We learn how to install Redis on a Raspberry Pi using Docker. Using Docker enables us to install the latest releases of Redis long before they are available in the Raspbian package repository.

Bitnami Kubernetes Production Runtime released

Thu, 12/13/2018 - 00:09
Want a trustworthy, full-featured Kubernetes package that[he]#039[/he]s not tied to a specific vendor? Then you should talk to Bitnami.

Aliases: DIY Shell Commands

Wed, 12/12/2018 - 22:55
Aliases, in the context of the Linux shell, are commands you build yourself by packing them with combinations of other instructions that are too long or too hard to remember.

Cybersecurity books recommended by top security researchers

Wed, 12/12/2018 - 21:41
If you’re looking to get into the field, let the security researchers whose names you know share the books that got them started and the books they recommend for today’s hackers.

How to Install InvoicePlane with Nginx on CentOS 7

Wed, 12/12/2018 - 20:26
InvoicePlane is a free and open source invoicing application. Its source code can be found on this Github. This tutorial will show you how to install InvoicePlane on a fresh CentOS 7 system.

Putting information into a table from the table's filename

Wed, 12/12/2018 - 19:12
Example: how to extract a date from a filename and add it to each record in the file. An example of this data-processing task would be grabbing the date part of a date-stamped filename and adding it to the table records (assuming they don't have a date), so that the files can be combined for a time-series study.

New Ebook Offers Comprehensive Guide to Open Source Compliance

Wed, 12/12/2018 - 17:58
The Linux Foundation has released the second edition of Open Source Compliance in the Enterprise by Ibrahim Haddad, which offers organizations a practical guide to using open source code and participating in open source communities while complying with both the spirit and the letter of open source licensing.

How to Build a Netboot Server, Part 2

Wed, 12/12/2018 - 16:43
The article How to Build a Netboot Server, Part 1 showed you how to create a netboot image with a “liveuser” account whose home directory lives in volatile memory. Most users probably want to preserve files and settings across reboots, though. So this second part of the netboot series shows how to reconfigure the netboot image from […]

15 Best Linux Games on Steam

Wed, 12/12/2018 - 15:29
Before Valve ported their popular Steam gaming platform to Linux, gaming on the operating system seemed like a hopeless pursuit. Most Linux gaming came in the form of a handful of open source games or messy Wine configurations to get Windows games to work, albeit at a huge performance hit. Now, the picture is much different, thanks in large part to Steam.

Top 5 configuration management tools

Wed, 12/12/2018 - 14:15
DevOps is evolving and gaining traction as organizations discover how it enables them to produce better applications and reduce their software products' time to market.DevOps' core values are Culture, Automation, Measurement, and Sharing (CAMS), and an organization's adherence to them influences how successful it is.read more

moneyGuru – free personal finance management software

Wed, 12/12/2018 - 13:00
moneyGuru is an open source personal finance management application. With this software, you can evaluate your financial situation and then make informed financial decisions. It has the double-entry accounting system.

Jellyfin: Free Software Emby Media Server Fork Is Announced After Emby Becomes Proprietary

Wed, 12/12/2018 - 11:46
After the news that Emby server is now proprietary, with only some plugins being open source, a free software fork of Emby was created, called Jellyfin.