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Bring yourself up to speed with our introductory content.
Get started
Bring yourself up to speed with our introductory content.
built-in administrator account
In the Windows operating system, the built-in administrator account -- the first account created when the OS was installed -- has the highest permissions of any profile on the computer system. Continue Reading
Use Jenkins for deployment, support and provisioning in ops
IT organizations that keep Jenkins on the development side of the house miss out on the orchestrated workflow capabilities it brings to operations tasks. Continue Reading
Get started with Azure AD entitlement management automation
Identity governance tasks in Azure Active Directory can be overwhelming, but understanding how to use Microsoft Graph and PowerShell to work with these settings will help. Continue Reading
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Microsoft Identity Manager
Microsoft Identity Manager -- also called Microsoft Identity Manager 2016 or MIM -- is an on-premises tool that enables organizations to manage access, users, policies and credentials. Continue Reading
overprovisioning (SSD overprovisioning)
Overprovisioning, in a storage context, is the inclusion of extra storage capacity in a solid-state drive. Continue Reading
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Definitions to Get Started
- What is an API (application programming interface)?
- What is a SAN? Ultimate storage area network guide
- What is a data retention policy?
- What is multi-access edge computing? Benefits and use cases
- What is 5G?
- What is 6G? Overview of 6G networks & technology
- phase-locked loop (PLL)
- What is millimeter wave (mmWave)?
flash solid-state drive (SSD)
A flash solid-state drive (SSD) is a non-volatile storage device that stores persistent data in flash memory.Continue Reading
How to use abstracted repositories in dependency injection
Dependencies in software design can complicate matters. Dependency injection helps simplify it -- but it's not without its faults. Here's what you need to know.Continue Reading
Microsoft Windows Update
Microsoft Windows Update is a security service for Windows users that, once activated, automatically searches for and installs updates.Continue Reading
How to secure Kubernetes clusters in 7 steps
Kubernetes security is critical for an enterprise's welfare. To protect Kubernetes clusters, create a plan to implement security protocols and control access.Continue Reading
OSGi (Open Service Gateway Initiative)
The OSGi (Open Service Gateway Initiative) specification is a Java framework for developing and deploying modular software programs and libraries.Continue Reading
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How cost and complexity factor into AWS DR strategies
To choose the right AWS disaster recovery plan, understand how much downtime your business can tolerate -- and how DR scenarios affect your monthly costs.Continue Reading
mechanical refrigeration
Mechanical refrigeration, often referred to simply as refrigeration or air conditioning, is a process by which heat is removed from a location using a human-made heat exchange system.Continue Reading
kernel panic
A kernel panic refers to a computer error from which the system's operating system (OS) cannot quickly or easily recover.Continue Reading
Manage resource use with VMware Horizon application pools
Load balancing is challenging in any environment, but with virtual desktops, uniformity of user experience is high priority. Use VMware Horizon to distribute vital resources.Continue Reading
Serial-Attached SCSI (SAS)
Serial-Attached SCSI (SAS) is a method used to access computer peripheral devices that employs a serial -- one bit at a time -- means of digital data transfer over thin cables.Continue Reading
data center resiliency
Resiliency is the ability of a server, network, storage system or an entire data center to recover quickly and continue operating even when there has been an equipment failure, power outage or other disruption.Continue Reading
Developer vs. DevOps engineer similarities and differences
What does a DevOps engineer do? What does a developer do? The two roles sound alike, but their roles, skills and tools are quite different and require unique expertise.Continue Reading
Follow this 10-point virtualization security checklist
Failover clustering, encryption and prompt patching practices can help admins shore up their VMs in the face of online security threats from sources such as malware and bad actors.Continue Reading
Prepare for these common SRE interview questions
To ace that job interview, aspiring SREs should prepare to discuss everything from programming languages to network troubleshooting at varying levels of detail.Continue Reading
Discover disaster recovery and backup for edge networks
Proper backup and DR at the edge requires an awareness of the specific challenges edge devices present, and appropriate plans and tooling to help ease management.Continue Reading
utility storage
Utility storage is a service model in which a provider makes storage capacity available to an individual, organization or business unit on a pay-per-use basis.Continue Reading
How to use Pulumi Automation API, with examples
In this tutorial, integrate Pulumi's Automation API into existing projects -- and remove the need for CLI to perform infrastructure lifecycle changes in a CI/CD pipeline.Continue Reading
oversubscription
Oversubscription in a storage area network (SAN) is the practice of committing more network bandwidth to devices connected to that network than what is physically available.Continue Reading
A primer on the NVMe management ecosystem
The NVMe management ecosystem has a lot of moving parts and confusing acronyms. This overview details the various specifications and how they work together.Continue Reading
What is the role of machine learning in networking?
Incorporating machine learning tools into a network can help teams predict traffic flows, generate smarter analytics, monitor network health, tighten security measures and more.Continue Reading
Why a successful software tester's skillset is more than just technical
How can you become a good software tester? It requires more than just technical expertise. Here are some important personality traits QA pros need to have.Continue Reading
How to work with an SCCM technical preview lab
System Center Configuration Manager technical previews give Microsoft customers a way to test and provide feedback to the company for its device management product.Continue Reading
write amplification factor (WAF)
Write amplification factor (WAF) is a numerical value that represents the amount of data a solid-state drive (SSD) controller writes in relation to the amount of data that the host's flash controller writes.Continue Reading
SecOps and cybersecurity basics for NetOps teams
To bridge the gap between NetOps and SecOps teams, network pros should know security fundamentals, including different types of attackers, attacks and available security services.Continue Reading
Red Hat Enterprise Linux (RHEL)
Red Hat Enterprise Linux (RHEL) is an enterprise Linux operating system (OS) developed by Red Hat for the business market.Continue Reading
How an AWS multi-region architecture can strengthen DR
Meet AWS outages head on by learning how to build a multi-region architecture that achieves resiliency in the event of disaster.Continue Reading
SMP (symmetric multiprocessing)
SMP (symmetric multiprocessing) is the processing of programs by multiple processors that share a common operating system and memory.Continue Reading
The basics of working with declarative programming languages
While imperative programming is often a go-to, the declarative approach has proved useful in the face of demands for complex, feature-heavy business applications.Continue Reading
Microsoft Windows Server 2016
Microsoft Windows Server 2016 is Microsoft's server operating system (OS).Continue Reading
NetOps vs. DevOps vs. NetSecOps: What's the difference?
DevOps, NetOps and NetSecOps ... oh my! These IT concepts have their differences, but at the end of the day, they're family. Here's how they relate.Continue Reading
6 DevOps soft skills and how they drive success
DevOps is built on collaboration and communication -- and soft skills make that foundation strong. Discover six soft skills to help set you apart.Continue Reading
Use Kubernetes and Terraform together for cluster management
Kubernetes and Terraform provide many container cluster management benefits -- but combining the two makes them even stronger. In this tutorial, discover how to use them together.Continue Reading
release
A release is the distribution of the final version or the newest version of a software application.Continue Reading
The NetOps 2.0 era is here: A primer for networking pros
Experts say inflexible legacy networks impede critical DevOps initiatives. Enter NetOps 2.0. This primer explains how automation and virtualization can help networks evolve.Continue Reading
Cloud Data Management Interface (CDMI)
The Cloud Data Management Interface (CDMI) is an international standard that defines a functional interface that applications use to create, retrieve, update and delete data elements from cloud storage.Continue Reading
location-based service (LBS)
A location-based service (LBS) is a software service for mobile device applications that requires knowledge about where the mobile device is geographically located.Continue Reading
Is Kubernetes free as open source software?
Kubernetes is available open source, but also from IT vendors. A complex tool, it enables container orchestration at scale. Which version will pay off for enterprise adopters?Continue Reading
Windows
Windows is Microsoft's flagship operating system (OS), the de facto standard for home and business computers.Continue Reading
What is user acceptance testing (UAT)?
User acceptance testing (UAT), also called application testing or end-user testing, is a phase of software development in which the software is tested in the real world by its intended audience.Continue Reading
NAND flash wear-out
NAND flash wear-out is the breakdown of the oxide layer within the floating gate transistors of NAND flash memory.Continue Reading
build
In a programming context, a build is a version of a program that, as a rule, is a pre-release version and is identified by a build number rather than by a release number.Continue Reading
Configure DHCP failover for Windows Server
DHCP is a critical service, and network admins should take the time to create fault tolerance. Windows Server makes it easy to configure both failover and load balancing.Continue Reading
data residency
Data residency refers to the physical or geographic location of an organization's data or information.Continue Reading
What to look for in a green cloud storage provider
Alongside cost and flexibility, a commitment to sustainability is a key consideration for organizations trying to choose a cloud storage provider.Continue Reading
64-bit processor (64-bit computing)
A 64-bit processor refers to a microprocessor that can process data and instructions in chunks of 64 bits.Continue Reading
Windows Server Failover Clustering (WSFC)
Windows Server Failover Clustering (WSFC) enables several computers to host a service, and if one has a fault, the remaining computers automatically take over the hosting of the service.Continue Reading
Micro apps vs. microservices: What developers should know
On the surface, the contrast between micro apps and microservices simply seems a matter of front-end vs. back-end concerns. But this isn't the only difference worth knowing.Continue Reading
solid-state storage garbage collection
Solid-state storage garbage collection, or SSD garbage collection, is an automated process by which a solid-state drive (SSD) improves write performance.Continue Reading
multicore processor
A multicore processor is an integrated circuit that has two or more processors attached for enhanced performance and reduced power consumption. These processors also enable more efficient simultaneous processing of multiple tasks, such as with ...Continue Reading
How to use Git to save PowerShell scripts
Git eases scripting by pushing developers into better habits -- especially around change documentation. Get familiar with the technology and how to use it with PowerShell.Continue Reading
Stay online with these 5 AWS disaster recovery best practices
Solve disasters in an AWS deployment by having a disaster recovery strategy in place. Learn how to pick the right recovery methods and prevent more problems.Continue Reading
Follow this Harness IO tutorial to get started with CI/CD
This tutorial gives an overview of the options and features available to users of Harness IO and walks through how to build and ship code in the CI/CD platform.Continue Reading
LUN masking
LUN masking is an authorization mechanism used in storage area networks (SANs) to make LUNs available to some hosts but unavailable to other hosts.Continue Reading
Open Web Application Security Project (OWASP)
The Open Web Application Security Project (OWASP) is a nonprofit foundation that provides guidance on how to develop, purchase and maintain trustworthy and secure software applications.Continue Reading
Hypertext Transfer Protocol Secure (HTTPS)
Hypertext Transfer Protocol Secure (HTTPS) is a protocol that secures communication and data transfer between a user's web browser and a website.Continue Reading
virtual LUN (virtual logical unit number)
A virtual LUN (virtual logical unit number) is a representation of a storage area that is not tied to any physical storage allocation.Continue Reading
raw device mapping
Raw device mapping (RDM) enables disk access in a virtual machine (VM) in the VMware server virtualization environment and allows a storage logical unit number (LUN) to be connected directly to a VM from the storage area network (SAN).Continue Reading
Try a network configuration quiz to study for Network+ exam
Use these sample questions from CompTIA's 'Official CompTIA Network+ Self-Paced Study Guide (Exam N10-008)' in preparation for your certification exam.Continue Reading
Study various network types, topologies for configuration
Those looking to earn a Network+ certification need to learn about network types, topologies, network design best practices and more. James Pengelly's book covers those topics.Continue Reading
Network design considerations for Network+ exam prep
One of the first things network pros should learn is how to design a network. In this Q&A, author James Pengelly discusses best practices for network configuration.Continue Reading
Exchange Management Console (EMC)
The Exchange Management Console (EMC), introduced by Microsoft in 2007, is an administrative tool with a graphical user interface (GUI) that's used to manage the components and resources of Microsoft Exchange Server.Continue Reading
Network Time Protocol (NTP)
Network Time Protocol (NTP) is an internet protocol used to synchronize with computer clock time sources in a network.Continue Reading
software documentation
In the software development process, software documentation is the information that describes the product to the people who develop, deploy and use it.Continue Reading
canonical name (CNAME)
A canonical name (CNAME) is a type of Domain Name System (DNS) database record that indicates that a domain name is the nickname or alias for another domain name.Continue Reading
How NetOps differs from traditional network operations
When comparing NetOps and conventional network operations, network teams focus on automating repeatable tasks that correct problems rather than introducing new ones manually.Continue Reading
Test your platform-as-a-service knowledge with this PaaS quiz
PaaS offerings continue to evolve, with a range of vendors and tools available to enterprise development teams. Use this quiz to see the strength of your PaaS knowledge.Continue Reading
IBM IMS (Information Management System)
IBM IMS (Information Management System) is a database and transaction management system that was first introduced by IBM in 1968.Continue Reading
Load sharing vs. load balancing: What's the difference?
Load sharing and load balancing are two techniques that work to distribute traffic across a network. However, their methods of balancing differ significantly. Here's how.Continue Reading
versioning
Versioning is the creation and management of multiple releases of a product, all of which have the same general function, but are improved, upgraded or customized.Continue Reading
cloud washing
Cloud washing (also spelled cloudwashing) is the purposeful and sometimes deceptive attempt by a vendor to rebrand an old product or service by associating the buzzword 'cloud' with it.Continue Reading
VMkernel
VMkernel is a POSIX (Portable Operating System Interface)-like operating system developed by VMware.Continue Reading
Agile operations (AgileOps)
Agile operations, or AgileOps, is a digital business operating model that builds on Agile methodologies and DevOps techniques to help organizations adapt to change quickly and efficiently.Continue Reading
Why NetOps is a bridge to AIOps
As IT infrastructure grows more complex, NetOps teams should identify ways to ensure their networks remain operational and perform at peak levels. One option is AIOps.Continue Reading
Build your knowledge of Azure AD conditional access policies
The rapid pace of change in the modern workplace requires new methods to control who has access to what. This Azure Active Directory feature can help IT meet those security goals.Continue Reading
computer room air handler (CRAH)
A computer room air handler (CRAH) is a device used frequently in data centers to deal with the heat produced by equipment.Continue Reading
What it means to do 'everything as code' in IT operations
If the concept of 'everything as code' sounds overwhelming, don't worry. Learn what it means, how to get started and ways you might already be using it.Continue Reading
virtual appliance
Considered a software equivalent of a hardware device, a virtual appliance (VA) is a preconfigured software solution.Continue Reading
An intro to cloud-native microservices and how to build them
While there are a variety of ways to develop cloud-native microservices, focus on strategies that enable as much agility, resiliency and development simplicity as possible.Continue Reading
How to use PowerShell with the Azure REST API
With PowerShell automation coupled with the Azure REST API, it's easy to build a script to create, power on and remove virtual machines in Microsoft's cloud platform.Continue Reading
How to install and deploy Quay on Red Hat OpenShift
Quay enables Red Hat OpenShift users to store and manage container images -- with added advantages. Follow this tutorial to install and deploy the container registry.Continue Reading
best practice
A best practice is a standard or set of guidelines that is known to produce good outcomes if followed.Continue Reading
Unix
Unix -- trademarked as UNIX -- is a multiuser, multitasking operating system (OS) designed for flexibility and adaptability.Continue Reading
whole-team approach (team-based approach)
The whole-team approach (team-based approach) is a style of project management in which everyone on the project team is held equally responsible for the quality and success of the project.Continue Reading
Categories of twisted-pair cabling systems
A twisted-pair cabling system is a cable consisting of one or several pairs of copper wires.Continue Reading
Debian
Debian is a popular and freely available computer operating system (OS) that uses a Unix-like kernel -- typically Linux -- alongside other program components, many of which come from GNU Project.Continue Reading
Resource Description Framework (RDF)
The Resource Description Framework (RDF) is a general framework for representing interconnected data on the web.Continue Reading
How to create a runbook template for uniform documentation
To avoid inconsistencies and disaster, implement a runbook template to strengthen your existing runbooks -- this includes detailed and clear steps for structure and organization.Continue Reading
CI/CD tutorial: How to set up a pipeline
A CI/CD pipeline saves time and ensures software quality during development. Follow this tutorial to level up your project and reduce developer workload with automation.Continue Reading
Active Directory tree
An Active Directory (AD) tree is a collection of domains within a Microsoft Active Directory network.Continue Reading
access control list (ACL)
An access control list (ACL) is a list of rules that specifies which users or systems are granted or denied access to a particular object or system resource.Continue Reading
What to know about data center fire protection
Protect your data center from potential fire hazards through proper mitigation, detection and suppression. Then, create a plan for recovery in the event of a fire.Continue Reading
Network Data Management Protocol (NDMP)
Network Data Management Protocol (NDMP) is an open protocol to control data backup and recovery communications between primary and secondary storage in a heterogeneous network environment.Continue Reading
hierarchical storage management (HSM)
Hierarchical storage management (HSM) is policy-based management of data files that uses storage media economically and without the user being aware of when files are retrieved from storage.Continue Reading
Point-to-Point Protocol (PPP)
Point-to-Point Protocol (PPP) refers to a suite of computer communication protocols that provide a standard way to transport multiprotocol data over point-to-point links.Continue Reading
RAIN (redundant/reliable array of inexpensive/independent nodes)
A reliable array of independent nodes (RAIN) is a heterogeneous cluster of compute and storage nodes connected in a fault-tolerant network topology that incorporates multiple interfaces and redundant hardware.Continue Reading