IT Glossary & Dictionary

10 terms covering Linux, Python, DevOps, Networking, Databases, and more.

Clear definitions and in-depth explanations for beginners and professionals.

All Cloud Computing (35) Databases (51) DevOps (60) Linux (60) Networking (46) Programming Concepts (40) Python (55) Security (40) Web Development (53)

A-Z: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Clear

S

SAST (Static Application Security Testing)

Security

Automated analysis of source code to find security vulnerabilities without executing the application.

Secret Management

Security

The practice of securely storing, accessing, and rotating sensitive credentials like API keys, passwords, and certificates.

Security Audit

Security

A systematic examination of an information system to assess compliance with security policies, identify vulnerabilities, and verify controls.

Security Hardening

Security

The process of reducing a system's attack surface by disabling unnecessary services, applying patches, and configuring security controls.

Security Headers

Security

HTTP response headers that instruct browsers to enable security features like XSS protection, framing prevention, and content type enforcement.

Session Hijacking

Security

An attack where an adversary takes over a legitimate user session by stealing or predicting the session identifier.

SIEM (Security Information and Event Management)

Security

A platform that collects, correlates, and analyzes security events from across an organization to detect threats and incidents.

SOC (Security Operations Center)

Security

A centralized team and facility responsible for monitoring, detecting, analyzing, and responding to cybersecurity threats 24/7.

SQL Injection

Security

An attack where malicious SQL code is inserted into application queries through user input to access or manipulate the database.

Supply Chain Attack

Security

A cyberattack that targets less-secure elements in the software supply chain to compromise downstream users and organizations.

How Our IT Glossary Helps You

More than just definitions — our glossary is a learning tool that connects concepts to practical resources.

📚 Clear Definitions

Every term has a short definition for quick reference and a detailed explanation for deeper understanding.

🎯 Difficulty Levels

Each term is tagged as Beginner, Intermediate, or Advanced so you know if it matches your current knowledge.

🔗 Linked to eBooks

Terms link to relevant eBooks so you can go from a quick definition to in-depth learning in one click.

🔭 9 Categories

Browse by topic area — filter by category and A-Z letter to find exactly what you need in seconds.

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Frequently Asked Questions

What is the Dargslan IT Glossary?

The Dargslan IT Glossary is a comprehensive dictionary of 10 information technology terms covering 9 categories including Cloud Computing, Databases, DevOps, Linux, Networking, Programming Concepts. Each term includes a clear definition, an in-depth explanation, difficulty level, and links to related eBooks for further learning.

How many terms does the glossary contain?

The glossary currently contains 10 terms across 9 categories. We regularly add new terms to keep the glossary current with the latest technologies and concepts.

Who is this glossary for?

The glossary is designed for anyone working in or learning about IT — from complete beginners encountering unfamiliar terms to experienced professionals looking for precise definitions. Each term includes a difficulty badge (Beginner, Intermediate, or Advanced) so you can find content at your level.

Can I browse terms by category?

Yes. Use the category pills at the top of the glossary to filter terms by topic such as Cloud Computing, Databases, DevOps, Linux, Networking, Programming Concepts. You can also use the A-Z letter filter to jump to terms starting with a specific letter, or combine both filters.

How are glossary terms linked to eBooks?

Many glossary terms are linked to relevant eBooks in our store. When you read a term definition, you will see recommended books that cover that topic in depth — making it easy to go from a quick definition to comprehensive learning.

Is the glossary free to use?

Yes, the entire IT glossary is completely free. Browse, read, and learn from all 10 terms without any registration or payment required.

How do I find a specific term?

You can use the A-Z letter navigation to jump to terms starting with a specific letter, filter by category to narrow results, or use the search bar in the header to find any term by name. Each term has its own dedicated page with a full explanation.