Enterprise Applications
ServiceNow CSA: Reporting and Performance Analytics
ServiceNow analytics has two different questions at its core: “What is true right now?” and “How is performance changing over…
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Browse practical guides, technical explanations and certification coverage.
Enterprise Applications
ServiceNow CSA: Tables, Records & Data Model
ServiceNow applications are built on tables, records, fields, and relationships. The user interface can make the platform feel like a…
Enterprise Applications
ServiceNow CSA: Update Sets & Deployment
ServiceNow update sets group configuration changes so administrators and developers can move those changes between instances as a controlled unit.…
Enterprise Applications
ServiceNow CSA: Users, Groups & Roles
ServiceNow user administration becomes much easier when three concepts stay separate. A user represents an identity that can sign in…
Cybersecurity
Google Cloud Security Engineer: Workload Identity Federation
Workload Identity Federation lets workloads authenticate to Google Cloud by exchanging credentials from an external identity provider for short-lived Google…
Networking
LPI 201-450: Linux Networking and Routing
Linux networking is a system-administration discipline that combines interface configuration, address management, routing, name resolution, diagnostics, and service behavior. The…
Infrastructure & Systems
LPI 201-450: Linux Kernel, Modules, and Boot Process
The Linux boot process connects firmware, a bootloader, the kernel, the initial RAM filesystem, device initialization, and the system's service…
Infrastructure & Systems
LPI 101-500: Bash Redirection, Pipes, and Text Processing
Bash becomes powerful when commands are connected rather than run one at a time. Redirection controls where input and output…
Infrastructure & Systems
LPI 101-500: Linux Filesystem Hierarchy and Mounting
A Linux administrator has to know more than how to create files. The system only becomes predictable when you understand…
Infrastructure & Systems
LPI 101-500: Linux Package Management Across Linux Distros
Package management is the mechanism that turns a Linux installation from a static image into a maintainable operating system. It…
Infrastructure & Systems
LPI 010-160: Containers and Virtualization on Linux
Containers and virtual machines are often introduced as competing technologies, but on Linux they solve different isolation and packaging problems…
Infrastructure & Systems
LPI 010-160: Linux Permissions & Ownership
Linux permissions answer a deceptively simple question: who is allowed to do what with this file or directory? The current…
Networking
LPI 010-160: Networking Basics for Linux and Cloud Platforms
Networking on Linux begins with a few durable ideas: an interface has addresses, routes decide where packets go, DNS translates…
Technology Fundamentals
LPI 010-160: Open Source Licensing for Technologists
Open source is both a development model and a legal framework. Source code may be visible, but the license determines…
Enterprise Applications
Salesforce ADM-201: Data Import, Export & Duplicates
Salesforce administrators spend a surprising amount of time protecting the quality of data that already exists while bringing in data…