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The basic concept involved with the use of the osquery application is the "tabular abstraction" of many aspects of the operating system, such as processes, users, etc. The data is stored in tables which can be queried using SQL syntax, directly via the osqueryi shell, or via the osquerydemon. In this tutorial we will see how to install the application, how to run basic queries, and how to use FIM (File Integrity Monitoring).

Install Onionshare in Linux and use it to send files over Tor. The developer of Onionshare officially supports Ubuntu with a PPA. Enable it on your system, and install Onionshare.Debian is in an unusual situation. Only the testing and unstable releases have updated versions of Onionshare in their repositories. Stable doesn't have it at all. So, if you're running testing or unstable, just install it. Otherwise, you're going to need to use Apt pinning.

Do you wish there was a more secure option for sending text messages and even making calls from your phone? Wouldn't it be great if that option utilized end-to-end encryption to ensure that your communications were entirely protected? Well, that option exists in the form of Signal.

The objective of this article is to show how to change timezone on Ubuntu 18.04 Bionic Beaver Linux. It explains how to check current timezone settings, show all available timezones, change timezone and confirm the timezone change.

OpenCV is a multi-platform open source, computer vision library and it is a part of Ubuntu's universe package repository. The objective of this article is to install OpenCV on Ubuntu 18.04 Bionic Beaver Linux and provide a simple OpenCV example.

Systemd has nowadays become the de facto standard init system for all the major Linux distributions. Superseding SysV and upstart, it also replaced the classical way of defining system runlevels, using system targets, a special type of unit. In this tutorial we will see how to boot an Ubuntu 18.04 system into the emergency and rescue systemd targets, and what kind of environment they provide to the users.

Blizzard's games are wildly popular, and most of them work very well in Wine on Linux. Sure, they're not officially supported, but that doesn't mean that it's hard to get them running on Ubuntu.

Before you get started, make sure that you have the latest graphics drivers for your system installed. Playing games would be kind of hard without them.

The objective is to first configure a basic ProFTPD server on CentOS 7. Once we have a basic FTP server setup, we will then add FTP passive mode and increase security by adding Transport Layer Security ( TLS ).

Lastly, we add an optional anonymous configuration to allow anonymous user to login to FTP server without username and password.

Setting up a firewall can be a huge pain. Iptables isn't exactly known for its friendly syntax, and management isn't much better. Fortunately, UFW makes the process a lot more bearable with simplified syntax and easy management tools.

There are tons of ways to manage torrents on Linux. Many of the available clients are excellent, but some have distinct advantages. If you're looking to manage large numbers of torrents and manage them over your network, Deluge is easily the best option.

There are a bunch of reasons that you'd want to benchmark your Linux system. Most people benchmark out of pure curiosity or to measure the system's performance for games. Benchmarking can also help you identify problems with your system, though, and improve weak points for a smoother and more efficient experience. Benchmarking also helps you identify possible software issues and problematic upgrades with regressions.

In a relational database system the data is organized in tables, composed by rows and columns. Each row is an instance of the entity represented by the table, with the columns used as its properties. Relationships between tables are established by the use of foreign keys, and the statement with which we can perform queries that span over multiple tables it's called a join. In this tutorial we will see the different type of joins available when using MySQL or MariaDB.

The SysRq key combination can be used to send commands directly to the Linux kernel in some specific circumstances: the kernel will respond to commands sent with command keys immediately, unless it is completely locked. Various command keys achieve specific tasks, and they can be combined to restore the system to a safe state, or to obtain a clean reboot when nothing else works: this is what we can obtain with the reisub sequence.

Whether or not you like it, WordPress is a huge deal. It powers a gigantic portion of the Internet, and it remains one of the easiest ways to get a website online. Installing WordPress is dead simple, once you have a LAMP or LEMP server running on Ubuntu. This guide piggy-backs on the existing PHP server guides to get you running WordPress in as little time as possible.

When it comes to self hosted cloud storage Nextcloud is definitely the best option. It's fully open source, and allows you full control over your server. You can, of course, create your own user accounts and manage access too. There are a couple of options when it comes to setting up Nextcloud on Ubuntu. You can use Docker or you can follow the traditional install method. Either one will work. The Docker method will probably work better if you don't want to configure and manage the entire server yourself.

If you're looking to build and host web applications with Python, Django is the most popular choice. Since Python is so tightly integrated into the Linux, it's not too hard to get a Django server set up on Ubuntu. There isn't one set way to host Django projects, but a stack consisting of PostgreSQL, Nginx, Gunicorn, and Django is pretty much the standard.

DRM sucks. There, now that that's out of the way, you can focus on getting rid of it from all of your ebooks. It's pretty hard to deny that DRM has a negative impact on ebooks. You can't share them. You can't use them across devices. In short, it prevents you from using your legally purchased property the way you want.

Overwatch is one of the most popular PC games right now. It has a thriving esports scene and a community of millions playing it regularly worldwide. Unfortunately, it's also completely unsupported on Linux and likely never will be.

Have you ever installed a program from an outside source and wished that it had a convenient entry in your desktop environment's menu? More often than not, Linux applications installed through any channel other than a software repository don't include a proper desktop entry. Don't worry, though. They're actually quite simple to create for yourself.

While ssh is a vital tool for every system administrator, being it the most used and secure protocol for remote administration, even capable to grant access to the X11 display server, via X11 forwarding, it is not the right tool to use when the desired target is to share an entire desktop session. In that case the vnc protocol is our friend. By using it, we can completely control another machine, sharing even keyboard or mouse events.