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Browse the latest tutorials, guides, and practical examples across Linux, DevOps, security, databases, and programming on GoLinuxCloud.

Explore the latest tutorials and guides across Linux, DevOps, programming, and more.

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3098 articles

Blog illustration with latest articles, tutorials, guides, and how-to content across Linux and DevOps topics
security

Scan Git Repositories for Secrets with TruffleHog

Scan Git repositories for secrets with TruffleHog on Kali Linux. Find API keys, private keys, and credentials in Git history, verify findings, and validate with git pickaxe in an authorized lab.

Deepak Prasad12 min read
programming

Python Rename File

Learn how to rename a file in Python with pathlib Path.rename(), Path.replace(), os.rename(), os.replace(), and shutil.move(), including extension changes, batch renames, overwrite rules, and cross-filesystem moves.

Deepak Prasad18 min read
security

theHarvester Tutorial: Email and Domain OSINT on Kali Linux

theHarvester tutorial for Kali Linux: passive reconnaissance with email enumeration, subdomain discovery, Hunter API key setup in api-keys.yaml, source selection, CLI commands, and JSON/XML export on Rolling 2026.2.

Deepak Prasad16 min read
security

SpiderFoot Tutorial: How to Install and Use SpiderFoot on Kali Linux

Learn how to install and run SpiderFoot on Kali Linux, start the web UI, run a passive OSINT scan, and read Summary, Browse, and Graph results, with CLI and deployment options.

Deepak Prasad13 min read
security

Open Source Intelligence (OSINT) Tools for Pentesters

OSINT tools for pentesters, organized by what you investigate — domain/IP, email, username, image metadata, and breach data. Compare theHarvester, Shodan, Censys, Sherlock, ExifTool, SpiderFoot, and more, with tested …

Deepak Prasad23 min read
security

How to Write a Penetration Test Report

Learn how to write a professional penetration test report, with an executive summary, technical finding example, CVSS guidance, remediation steps, and a copyable pentest report template.

Deepak Prasad19 min read
security

Collaboration, Communication, and Risk Articulation in Penetration Testing

Learn pentest collaboration and communication: peer review, stakeholder alignment, escalation paths, secure distribution, business impact analysis, and client acceptance for PenTest+ and client work.

Deepak Prasad14 min read
security

Manage Pentest Projects with Cervantes

Install Cervantes with Docker Compose, log findings per client and project, and export penetration test reports while you track engagement status from one workspace.

Deepak Prasad11 min read
security

Analyze Pentest Findings and Recommend Remediation

Learn how to analyze penetration test findings and recommend remediation across technical, administrative, operational, and physical controls, with prioritization guidance and worked mapping examples for CompTIA …

Deepak Prasad12 min read
security

Pentest Methodologies and Frameworks Compared

Compare PTES, OSSTMM, CREST, MITRE ATT&CK, OWASP and other pentest frameworks. Learn what each is for, their differences, and which to use for your engagement.

Deepak Prasad18 min read
security

Penetration Testing Rules of Engagement: Scope, Authorization, and Legal Boundaries

Learn penetration testing rules of engagement: scope, authorization, permitted techniques, testing windows, escalation, data handling, and a practical RoE outline.

Deepak Prasad13 min read
security

OpenSSL Create Certificate Chain: Root, Intermediate and Leaf

Create an OpenSSL certificate chain with a root CA, intermediate CA, and leaf certificate. Build fullchain.pem, set pathlen, and verify the chain.

Deepak Prasad21 min read
interview-questions

Tableau Developer Interview Questions and Answers

Tableau developer interview questions and answers for {year}: LOD expressions, calculated fields, joins vs relationships, dashboard performance, Tableau Server, RLS, extracts, and scenario-based prep.

Deepak Prasad37 min read
interview-questions

ServiceNow Developer Interview Questions and Answers

ServiceNow developer interview questions for {year}: platform tables, client and server scripting, GlideRecord, ACLs, Workflow Studio, REST, update sets, ITSM scenarios, and senior prep with sample answers.

Deepak Prasad33 min read
interview-questions

Salesforce Data Engineer Interview Questions and Answers

Salesforce Data Engineer interview questions for {year}: SQL, Data 360, CDC pipelines, system design, coding, and behavioral prep for senior and lead roles.

Deepak Prasad51 min read
interview-questions

SQL Technical Interview Questions and Answers

SQL technical interview questions for {year}: joins, window functions, CTEs, GROUP BY traps, practice problems, and data analyst prep with sample answers.

Deepak Prasad43 min read
interview-questions

Semiconductor Machine Design Engineer Interview Questions and Answers

Technical interview questions for semiconductor machine design engineers in {year}: vacuum systems, wafer handling, precision motion, GD&T, FEA, thermal design, and troubleshooting for equipment roles at ASML, Lam, and …

Deepak Prasad50 min read
interview-questions

React Interview Questions and Answers

React and React JS interview questions and answers for {year}: hooks, Virtual DOM, state, performance, React 19, Server Components, coding challenges, and senior frontend prep.

Deepak Prasad30 min read
interview-questions

wget Interview Questions and Answers

wget interview questions for {year}: downloads, resume, mirroring, authentication, scripts, and wget vs curl—with practical command examples for Linux admin and DevOps interviews.

Deepak Prasad23 min read
interview-questions

TypeScript Interview Questions and Answers

TypeScript and interview questions on TypeScript for {year}: types, generics, utility types, narrowing, satisfies, strict mode, React/Node prep with elaborate answers.

Deepak Prasad25 min read
interview-questions

Terraform Interview Questions and Answers

Terraform interview questions for {year}: IaC architecture, HCL, providers, state, modules, count and for_each, drift, workspaces, import, CI/CD, and troubleshooting—with links to hands-on Terraform Associate lessons.

Deepak Prasad23 min read
interview-questions

Selenium Interview Questions and Answers

Selenium interview questions and answers for {year}: WebDriver architecture, Java, TestNG, locators, waits, Page Object Model, Grid, parallel execution, and SDET prep.

Deepak Prasad30 min read
interview-questions

Interview Questions on React JS for Experienced Developers

Interview questions on React JS for {year}: basic React JS questions, experienced hooks and architecture, scenario-based senior prep, React 19.2, and live coding answers.

Deepak Prasad27 min read
interview-questions

Python Developer Interview Questions and Answers

Python developer interview questions for {year}: core language, OOP, decorators, GIL, asyncio, Django, FastAPI, full stack APIs, pytest, and senior production prep with sample answers.

Deepak Prasad33 min read
interview-questions

Technical Program Manager Interview Questions and Answers

Technical Program Manager interview questions with sample answers for {year}: program sense, roadmap and launch readiness, migrations, system design, cross-functional leadership, STAR behavioral prep, and metrics-driven …

Deepak Prasad36 min read
interview-questions

Prometheus Interview Questions and Answers

Prometheus interview questions for {year}: architecture, metrics, labels, scraping, exporters, service discovery, PromQL, rate/irate, recording rules, Alertmanager, federation, TSDB, Kubernetes monitoring, and …

Deepak Prasad23 min read
interview-questions

PostgreSQL Interview Questions and Answers

PostgreSQL interview questions, postgresql developer interview questions, and postgresql dba interview questions for {year}: MVCC, indexes, EXPLAIN, JSONB, vacuum, replication, and tuning with elaborate answers.

Deepak Prasad29 min read
interview-questions

Platform Engineer Interview Questions and Answers

Platform engineer interview questions for {year}: internal developer platforms, golden paths, self-service, Kubernetes and Terraform substrate, GitOps, DevEx metrics, adoption, and 2026 platform scenarios.

Deepak Prasad21 min read
interview-questions

Pandas Interview Questions and Answers

Pandas and python pandas interview questions for {year}: DataFrame, groupby, merge, cleaning, vectorization, time series, performance, and data analyst prep with answers.

Deepak Prasad23 min read
interview-questions

Operating System Interview Questions and Answers

Operating system and Linux OS interview questions for {year}: processes, threads, scheduling, virtual memory, deadlocks, synchronization, and systems prep with answers.

Deepak Prasad28 min read