Looking to get started in Linux? Develop a good working knowledge of Linux using both the graphical interface and command line across the major Linux distribution families with The Linux Foundation’s Intro to Linux online course. Enroll for free here. (Este curso también está disponible en español. Haga clic aquí para Introducción a Linux.) From smartphones to cars, supercomputers and home appliances, home desktops to enterprise servers, the Linux operating system is everywhere. Linux has been around since the mid-1990s and has since reached a user-base that spans the globe. Linux is actually everywhere: It’s in your phones, your thermostats, in your cars, refrigerators, Roku devices, and televisions. It also runs most of the Internet, all of the world’s top 500 supercomputers, and the world’s stock exchanges. But besides being the platform of choice to run desktops, servers, and embedded systems across the globe, Linux is one of the most reliable, secure and worry-free operating systems available. Here is all the information you need to get up to speed on the Linux platform.

Redis is often referred to as a data structures server. What this means is that Redis provides access to mutable data structures via a set of commands, which are sent using a server-client model with TCP sockets and a simple protocol. So different processes can query and modify the same data structures in a shared way. Data structures implemented into Redis have a few special properties: Redis cares to store them on disk, even if they are always served and modified into the server memory. This means that Redis is fast, but that it is also non-volatile. The implementation of data structures emphasizes memory efficiency, so data structures inside Redis will likely use less memory compared to the same data structure modelled using a high-level programming language. Redis offers a number of features that are natural to find in a database, like replication, tunable levels of durability, clustering, and high availability. Another good example is to think of Redis as a more complex version of memcached, where the operations are not just SETs and GETs, but operations that work with complex data types like Lists, Sets, ordered data structures, and so forth. If you want to know more, this is a list of selected starting points: Introduction to Redis data types. https://redis.io/topics/data-types-intro Try Redis directly inside your browser. https://try.redis.io The full list of Redis commands. https://redis.io/commands There is much more inside the official Redis documentation. https://redis.io/documentation

What is Pulsar Apache Pulsar is an all-in-one messaging and streaming platform. Messages can be consumed and acknowledged individually or consumed as streams with less than 10ms of latency. Its layered architecture allows rapid scaling across hundreds of nodes, without data reshuffling. Its features include multi-tenancy with resource separation and access control, geo-replication across regions, tiered storage and support for six official client languages. It supports up to one million unique topics and is designed to simplify your application architecture. Pulsar is a Top 10 Apache Software Foundation project and has a vibrant and passionate community and user base spanning small companies and large enterprises.