certification

What Is RedHat Certification?

Hi, Do you know about Redhat Certification that is so popular nowadays. In IT world all we hear about are the various Certification that a candidate has obtained and how it helped them to land in their dream job.So lets Understand what Redhat means and what are the Certifications they provide. The terms RHCSA,RHCE, RHCA comes usually pops up when you search for Redhat Certifications. Before we get into what those are let us get a overall jist of what these are all about. Almost everything starts with RHEL — A secure foundation of Linux that can run on Bare metal, Virtualized environment, Private clouds or public clouds . If you want to built out a private Cloud — Openstack is going to be your cup of tea . Ansible will help you to automate nearly everything from your application to servers to network to storage. This helps take away cost from your system, is fast and more secure. Now when we talk about Managing — Cloudform allows you to manage Applications in your environment in Private as well as public cloud. Then as we start to build the applications — new or existing applications — that is where Containers comes into play . And Redhat has the no.1 Container Portfolio ,It starts with Openshift — This allows to deploy the containers in the private cloud as well as the public cloud. Like the foundation in a building with consistent operating model across a multi cloud environment . To control the applications comes the Middleware portfolio — for Java application, integration services, api gateways — these really allows developer to be super productive Now if you put all this together and you know its opensource and supported by Redhat , its going to be always secure and delivers a great portfolio RHCSA — Redhat Certified System Administrate This is the entry level Certification that Redhat provides This is the most successful Certification that Redhat has 6 months experience with Linux is an added advantage Basic Knowledge on Linux Fundamental RHEL Version 8 — (Red Hat Enterprise Linux )is the upgarded version After RHCSA you can become a RHCE RHCE- Redhat Certified Engineer Its about — ANSIBLE — Data center Automation It is not Linux — its a Linux based product that helps to manage Linux environment with other environments Lot of Ansible is found in Networking Environment — which could be used to manage instances in cloud , to manage network devices and windows The next Certification is the Redhat Certified Architect — RHCA To become a RHCA — you need to take 5 exams. These exams are about Performance optimisation Troubleshooting Openshift Security Advanced Ansible Openstack For each of the 5 exams a Certificate of Expertise is provided, it will add to your resume . Once all the 5 exams are taken you become a RHCA Tips to pass Redhat Exams Take a Redhat Certification Course Look up for Exam Objectives Get real time training Mock Exams Rest before your Exam For a great learning experience get in touch with CubenSquare.com , where complete guidance is given in terms of Training, Certification and Placement.

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Volkswagen & Redhat Openshift

WHAT IS OPENSHIFT? To develop applications faster and to deliver across hybrid cloud environments, enterprises are using micro services and containers . To make everything work they need the right platform, that is when Redhat Openshift comes into play. Openshift has 4 different flavours Origin — The original upstream open source project from which all other models are derived Openshift Online — This is Redhats publicly hosted version of Openshift Origin available for application development and hosting purposes Openshift dedicated — Its a managed private cluster on cloud platforms like AWS , Google Openshift Enterprise — Its the on-premise private paas offering of Openshift Openshift is a platform that allows you to run containerized applications and workloads and is powered by Kubernetes. The Kubernetes Platform provides a trusted platform for the on premises , multi cloud and hybrid deployments as per enterprises demands. With a streamlined management Redhat Openshift , Empowers development teams to build and deploy new applications. They have has access to — validated images and solutions from 100’s of partners . It also supports in Tooling that the developers prefer like jenkins, java, python and so on, to build their next app It Helps operations team to provision, manage and scale a kubernetes platform. The Operations team is given visibility into deployments with built in log in and monitoring When its ready to launch , Service Mesh Stream Lines deploys making sure that each services can communicate with each other , so that the developers could focus on coding . Now that you got an idea of what Openshift is lets jump into a case study where Volkswagen has implemented Redhat Openshift in their enterprise VOLKSWAGEN AND REDHAT OPENSHIFT The Biggest Automotive industry Volkswagen has implemented Redhat Openshift. To ensure that the cars are safe a new way of testing was need .Integration testing is one of the complex task in automotive industry. The electronics system in a car consists of server components such as sensor actuators and electronic control units. They consists of software components which interacts with each other . They communicate through different bus technologies like Ken, Ethernet and so on. These electronics system needs to pass an integration testing for each combination of components, for each equipment line of the car , for each model and for every version of software in the car. The more capabilities those systems gain in terms of over control of the car, the more test cases were needed . A virtual car with a virtual driver is built and run on an virtual environment for testing. The test subject would be the software component of a control unit or the control unit itself or the complete system which represents the customers function. So in the end of the integration test there is an approval that the car is reliable, safe and proper for the customers. This was reliable but it takes a long time. In terms of exponential growth they needed an upgrade for the long run. This is when Volkswagen found out about the importance of Redhat Openshift and the idea of containers came into play. JOURNEY TO REDHAT OPENSHIT Their goal was fully automtion and virtual testing , allowing to test functions earlier in trail development . Using Redhat Openshift platform they were able to test and validate new features for self driven cars, through a combination of software and hardware systems by simulating thousands of testing environments and scenarios for specific car functions such as autonomous driving in highways or even autonomous car parking. Along with vehicle software Openshift container technology helped them to put all the necessary tools, applications and simulation components in logical compounds . This helped them to run large quantities of test cases in parallel over a short amount of time . A Virtual Test Environment(VTE) was created Openshift Native Architecture — Kubernetes at the core Temporal, Short Lived Environments — VTE’s created for a certain period of time and then deleted Asynchronous, Event Driven — VTE’s Pull tests from Central System when ready Isolated — SDN ensures network isolation for multicast discovery Auto Healing — Possible to restart VTE’s in case of failure Standards and API driven — OpenAPI, AMQP, EIP Redhat Openshift container has been a vital to their success and as a result Volkswagen has experienced transformational outcomes allowing them to work and think in new ways by developing, testing and building codes. So what are you waiting for take the first step to success by learning about Openshift with CubenSquare.

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Basic Linux Commands

BASIC LINUX COMMANDS Now to understand about the basic linux commands, first you need to know what Linux is all About!! WHAT IS LINUX? When using Windows — its high degree of compatibility is fine for every day use for many people. Since Windows is a proprietary operating system, developers and user more or less have to work with a relatively closed software environment with certain restrictions . Linux on the other hand has a completely open source kernel -The central part of the operating system that links your hardware with applications that can be used freely for tons of use case scenario. These different versions of Linux are commonly called as distributions or distros which provides different stacks of software tools and desktop environments all of which are tied to the Linux Kernel that combine to form a complete operating system. These distros can range from anything — Ubuntu or Mint which are popular desktop distributions often used as alternatives to windows . Linux is focused on security and stability,which as made it extremely popular for servers and other critical applications, whereas Windows is focused on ease of use. So now lets look into some of the basics Commands in Linux

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Redhat Openshift 4.10

WHAT’S NEW IN OPENSHIFT 4.10 New Updates Openshift Sandboxed Containers New Compliance Profiles Additional Infrastructure Providers and ARM Streamlined Disconnected Clusters More Powerful Tools for Seamless Upgrades OpenShift on Bare Metal MetalLB with BGP mode OpenShift Virtualization Brings Together Virtual Machines and Containers Test the Latest in OpenShift Serverless A Smarter OpenShift Console https://youtu.be/X5BwzjTIPe0   New users can accomplish the following tasks through the Getting Started: Create a project Grant view permissions Deploy a container image from Quay Examine and scale an application Deploy a Python application from GitHub Connect to a database from Quay Create a secret Load and view your application FEATURES The following features are supported for OpenShift Container Platform on ARM: OpenShift Cluster Monitoring RHEL 8 Application Streams OVNKube Elastic Block Store (EBS) for AWS AWS .NET applications NFS storage on bare metal The following Operators are supported for OpenShift Container Platform on ARM: Node Tuning Operator Node Feature Discovery Operator Cluster Samples Operator Cluster Logging Operator Elasticsearch Operator Service Binding Operator

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Redhat Remote Exam Preparation — CubenSquare

Getting Ready for your Red Hat remote exam System Requirements Computer:​ You will need a computer with a single active monitor. Red Hat Supports many Intel compatible X86_64-bit architecture computers. USB:​ One USB Drive (2.0 or higher) with at least 8 GB capacity. NOTE: The entire disk will be overwritten, so make sure you have saved any contents you may have on the disk before following the procedure for creating thelive exam environment. USB Hub​: ​One wired USB hub is allowed if a hub is needed to accommodate permitted peripheral devices as described below. Hard Drive:​ A hard drive with free storage capacity of at least 4 GB (for Live USB creation only). Mouse:​ A wired ​mouse is optional but recommended.​ A wireless mouse is not allowed. A wired mouse is required if you use a laptop in a closed and docked mode as described below. Keyboard: Only one keyboard is allowed for the exam. If you wish to use an external, wired keyboard with your laptop, you will have to use the laptop closed and docked. This will require the use of an external monitor and wired mouse as well. Wireless keyboards are not permitted. Webcam:​ One external webcam with at least a 1m cable. Monitors:​ Only one physical display will be allowed for the exam. Connecting an external monitor to a laptop: you are only allowed to use one monitor, one keyboard and one external mouse. If you chose to connect an external monitor to your laptop, the laptop lid must be closed throughout the duration of the exam session. You will be required to use a wired keyboard and a wired mouse. Sound and microphone:​ A working microphone is required. Verify that the audio and microphone are not set on mute prior to the exam. Operating system:​ N/A Firewalls:​ Firewalls that allow normal web activities will typically work. More restrictive firewalls that limit outgoing access and that require additional authentication may cause problems. Most firewall issues will show up when you run the compatibility test. RAM:​ Minimum 4GB of RAM are required. Internet connection speed:​ Download speed requirements are 768Kbps and upload speed requirements are 512Kbps. Network connection:​ Unless it is physically not possible, a wired network connection should be used, not wireless, to ensure the most reliable delivery of your exam. Laptop battery:​ If using a laptop, please ensure that the built-in battery is fully charged just in case there is an interruption of power. Do not rely on the battery as the principal power source. Power:​ Recommended to use an uninterrupted power supply (UPS) for your computer, external monitor (if used) and networking equipment to maintain internet connectivity during power outages. Create a Remote Exam Bootable Live USB Download the Remote Exam Bootable Live USB​ from ​here > https://static.redhat.com/downloads/training-certification/rhrexboot.iso and save it in the local hard drive. Connect the USB drive​ intended for creation of Live USB Download and install​ > http://s.bl-1.com/h/cRvkm70t?url=https://getfedora.org/en/workstation/download/ — to download ​ and install Fedora Media Writer. Use the Fedora Media Writer​ to write the downloaded .iso file to your USB drive. Launch Fedora Media Writer from the list of installed programs Select Custom Image. Navigate to the bootable live usb image (.iso) stored in your computer, click on Open’ and bring up the ‘Write Custom Image’ window. If you have a USB drive connected to your computer, Fedora Media Writer will display that as the target device to create a bootable image. ​ Note:​ Fedora Media Writer destroys all data on the USB stick while creating a Live USB media. We recommend you back up the contents of your USB drive beforehand. Select ‘Write To Disk’ to initiate the Live USB creation process. The ‘Write Custom Image’ window should identify the connected USB drive. 5. Close the window​ once the writing process is completed 6. Boot to the Remote Exam Bootable Live USB​ Booting to the Remote Exam Live USB Connect all the external devices you will be using during the remote exam to your computer before booting. These may include: – The remote exam LiveUSB, an external wired webcam, network cable (unless you plan on using wifi) and a wired mouse (optional) for laptops – The remote exam LiveUSB, an external wired webcam, network cable, wired keyboard and wired mouse for desktops -The remote exam LiveUSB, an external wired webcam, network cable, wired keyboard, wired mouse and external monitor for laptops with external display. – You will need to keep the laptop lid closed if an external display is used. Restart your computer/Mac and go to the boot menu. Select your boot device as USB drive Note: Boot menu is available in most computers to select the boot device temporarily without entering the BIOS Setup Utility. Depending on your hardware, the keystroke to enter the boot menu at start up may differ. The typical keys used for various brands of computers are, but not limited to the following: F12 — for most Lenovo, Dell, and Toshiba laptop models ESC and F9 for HP Look at the splash screen when your computer starts to know the key to interrupt the booting process and enter the temporary boot menu. For Mac systems, press and hold the Option ( ) or Alt key to access the start up manager and select the boot device. 3. Review boot order selection screen. An example of a typical Macintosh boot screen is as follows. Select any of the EFI boot icons. 4. Wait for the image to load 5. Allow the LiveUSB resources to be loaded to the random access memory. 6. Remove the USB drive and click Ok. 7. Use the settings page to make changes, such as mouse and touchpad speed, region and language, and sound levels. The hamburger button next to “settings” provides a list of available keyboard shortcuts. 8. Adjust display resolution. If the default resolution of your screen is higher than 1920*1080, we recommend adjusting it to 1920*1080 for better screen readability inside the exam environment. Leave the settings as is if the default screen resolution is less than 1920*1080. 9. Adjust the mouse/touchpad settings per your

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