In this chapter, you'll build an expense tracker that reads a plain Telegram message, uses a free AI model to pull out the amount and category, and logs it.

The only Claude Code course that takes Linux sysadmins from pasting questions into a chat window to building autonomous agents with custom Skills, MCP servers, and compliance-ready audit trails runnin...

In this chapter, you'll create a Telegram bot, connect it to n8n, trigger workflows from incoming messages, find your chat ID, and reply from the workflow.

In this chapter, you'll use the Set node to rename fields, build nested objects, drop what you do not need, and fix data before it reaches the next node.

In this chapter, you'll create your first n8n credential, connect Airtable with a scoped token, read records with filters, and write form submissions to a base.

In this chapter, you'll build a complete n8n workflow that collects applications through a form, scores each one, routes it with an IF node, and replies.

In this chapter, you'll set workflows to run on intervals or cron expressions, read cron syntax field by field, handle timezones, and avoid overlapping runs.

In this chapter, you'll write JavaScript in the n8n Code node, choose between running once per item or across all items, and return data in the right shape.

In this chapter, you'll write n8n expressions to pull data from earlier nodes, reach into nested fields and arrays, handle dates, and cope with missing values.

In this chapter, you'll use the HTTP Request node to call any API, send query parameters and JSON bodies, authenticate safely, and handle paginated responses.

In this chapter, you'll learn about the n8n editor, including the canvas, the node panel, the input and output views that show your data, and the executions list.

In this chapter, you'll deploy n8n on a Linux VPS with Docker and PostgreSQL, put Nginx in front of it, and secure it with a free Let's Encrypt certificate.

In this chapter, you'll deploy n8n to Railway, get a public HTTPS address for webhooks, set the encryption key and webhook URL, and understand the billing.

In this chapter, you'll install Docker, run n8n in a container with a persistent volume, write a Compose file, update the image, and back up your data.

In this chapter, you'll install n8n with npm, choose a supported Node.js version, start the editor on localhost, claim a free licence, and fix installation errors.

In this chapter, you'll learn what n8n is, how nodes and workflows fit together, the three ways to run it, and where it beats Zapier and Make.com.

In this chapter, you'll learn what separates an AI agent from a workflow, why that difference decides how you build, and how both look inside n8n.

Learn n8n through 39 practical chapters covering installation and self-hosting, nodes and expressions, Airtable and Telegram automations, AI workflows, and AI agents.

A complete 600+ page certification preparation guide to help IT beginners pass the Linux Foundation Certified IT Associate (LFCA) exam, covering Linux, cloud, security, DevOps, and project management ...

In this chapter, you'll connect Claude Code and Claude API to n8n workflows for event-driven automation: alert triage, log summarization, and cross-tool sysadmin pipelines.

In this chapter, you'll build a complete daily server health report that collects system metrics, analyzes them with Claude Code in headless mode, and delivers a structured summary by email and to a l...

Learn SSH from first connection to enterprise Zero-Trust infrastructure in 54 comprehensive chapters covering authentication, security, tunneling, automation, MFA, and compliance.

Learn SSH from first connection to enterprise Zero-Trust infrastructure in 54 comprehensive chapters covering authentication, security, tunneling, automation, MFA, and compliance.

In this chapter, you'll learn how to build a centralized SSH key management system, automate key distribution across server fleets, and deprovision access when team members leave.

In this chapter, you'll learn how to use Claude Code to reconstruct an incident timeline from logs, produce a structured postmortem draft, and turn a painful writing task into a 10-minute process.

In this chapter, you'll learn how to set up an SSH Certificate Authority, issue short-lived SSH certificates, and revoke them, replacing long-lived keys with a more secure certificate-based model.

In this chapter, you'll learn the rules of engagement for using Claude Code safely during a live production incident, what it should handle, what to keep human, and how to stay in control under pressu...

In this chapter, you'll learn how to log SSH sessions for forensics and compliance, set up audit trails for SOC2, PCI-DSS, and HIPAA, and use Teleport for session recording.

In this chapter, you'll connect Claude Code to Prometheus using an existing MCP server, then build a simple custom MCP server in Python for your own monitoring stack.

In this chapter, you'll connect Claude Code to your team's internal documentation so it can answer questions grounded in your actual runbooks, not general knowledge.

In this chapter, you'll learn how to use SSH verbose mode to debug connection issues, read handshake output, diagnose authentication failures, and interpret client and server side logs.

In this chapter, you'll connect Claude Code to the GitHub MCP server, then use it for pull request reviews, issue triage, and correlating commits with service incidents.

In this chapter, you'll learn how to use YubiKey and FIDO2 hardware security keys with SSH, generate ed25519-sk keys, and set up hardware-backed authentication that requires physical presence.

In this chapter, you'll learn what the Model Context Protocol is, how it connects Claude Code to your existing tools, and why it matters for sysadmin work specifically.

In this chapter, you'll learn how to set up TOTP-based multi-factor authentication for SSH using Google Authenticator and configure PAM for an extra layer of security.

Install herdr on Linux to run and monitor multiple AI coding agents in one terminal, with panes, workspaces, and remote SSH sessions.

In this chapter, you'll learn how to manage AWS EC2, DigitalOcean, Hetzner, and Linode servers over SSH, and how to set up SSH access for Raspberry Pi and IoT devices.

Learn how to install Flyline on Linux to add syntax highlighting, fuzzy history search, mouse support, and AI-powered commands to your Bash terminal.

In this chapter, you'll build a backup-verify Skill that checks archive freshness, validates integrity, and reports anomalies every time you invoke it.

In this chapter, you'll learn how SSH works in containerized environments, when to use SSH versus kubectl exec, and how to set up SSH access in Docker, Podman, and Docker Compose.

Learn how to install uutils-coreutils on Linux, test it alongside GNU coreutils, compare performance, and benchmark Rust-based core utilities safely.

Learn how to use Nushell on Linux to query files, processes, JSON, and CSV with structured pipelines. Includes installation and practical examples.

In this chapter, you'll learn how to run parallel SSH with pssh and GNU parallel, automate SSH key rotation, and manage SSH access securely across large server fleets.

A standardized way to give AI agents new capabilities and expertise.

Learn how to install codebase-memory-mcp on Linux, connect it to your AI coding agent, build your first code index, and start running fast context queries.

In this chapter, you'll learn how Ansible uses SSH for agentless automation, how to configure SSH for Ansible inventory, and how Terraform uses SSH provisioners for infrastructure bootstrapping.

Learn how to install and configure Unbound as a caching DNS resolver on Rocky Linux 10, RHEL 10, and AlmaLinux 10, with real query benchmarks.

In this chapter, you'll learn what the IT project management lifecycle is, what each phase covers, how the project triple constraint works, and how projects relate to IT and Linux infrastructure work.

In this chapter, you'll learn what Claude Code Skills are, how the SKILL.md format works, and why they change how you approach repetitive sysadmin tasks.

Learn how to safely downgrade packages on RHEL, Fedora, Rocky, and Alma Linux using dnf, with version locking, RPM cache recovery, and transaction rollback.