forked from DRAM-IT/Wiki
136 lines
5.5 KiB
Markdown
136 lines
5.5 KiB
Markdown
### **Computer Systems, Virtualization, and Linux Fundamentals**
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**Target Audience:** IT Professionals, System Administrators, or Developers
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**Prerequisites:** Basic computer literacy. Pre-install VirtualBox and download CentOS/RHEL ISO (instructions sent prior).
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---
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### **Schedule Breakdown**
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**Total Time:** 8 Hours (Excluding Breaks)
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---
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#### **1. Welcome & Overview (9:00 AM – 9:15 AM)**
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- **Objective:** Set expectations and outline the day.
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- **Activity:**
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- Quick introductions.
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- Overview of training goals and schedule.
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---
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#### **2. Lecture: Computer Systems & Network Fundamentals (9:15 AM – 10:15 AM)**
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- **Topics Covered:**
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- **What is a Computer System?**
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- **Hardware:**
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- CPU (Processor): The brain – what it does.
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- GPU (Specific Processor): The brain – what it does.
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- RAM (Memory): Short-term storage, faster speed access.
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- Storage (HDD/SSD): Long-term storage, medium speed access.
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- Motherboard: The central hub.
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- Input/Output Devices (Keyboard, Mouse, Monitor, Printer).
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- **Software:**
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- Operating System (OS): The manager (Windows, macOS, Linux).
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- Applications: Programs for specific tasks.
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- Basics of networking: IP addresses, DNS, DHCP, and subnets.
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- Role of OS in resource management.
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- **Learning Outcome:** Understand how hardware and software interact in networked environments.
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---
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#### **3. Lab 1: Basic Network Configuration (10:30 AM – 11:30 AM)**
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- **Tools Used:** Command-line (`ipconfig/ifconfig`, `ping`, `nslookup`).
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- **Activities:**
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- Check IP configuration and test connectivity.
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- Modify network settings (temporary IP change).
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- Troubleshoot a simulated DNS issue.
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- **Deliverable:** Screenshot of successful `ping` to a gateway and external domain.
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---
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#### **4. Lecture + Group Activity: Bare Metal vs Virtualization vs Containerization (11:30 AM – 12:30 PM)**
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- **Topics Covered:**
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- **Bare Metal:**
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- Definition: OS directly on hardware.
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- Pros: Maximum performance, direct hardware access.
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- Cons: Resource underutilization, difficult to manage multiple applications, hardware dependency.
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- **Virtualization:**
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- Concept: Running multiple virtual machines (VMs) on a single physical host.
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- Hypervisor (Type 1 vs. Type 2 - focus on Type 2 for VirtualBox): The software that manages VMs.
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- Pros: Resource isolation, efficient resource utilization, portability, disaster recovery.
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- Cons: Overhead from hypervisor, slightly lower performance than bare metal.
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- **Analogy:** An apartment building (bare metal) vs. a shared house with separate rooms (virtualization).
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- **Containerization (Brief Overview - for context):**
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- Concept: Lightweight, isolated environments sharing the host OS kernel.
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- Examples: Docker.
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- Pros: Even lighter than VMs, faster startup, highly portable.
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- Cons: Less isolation than VMs, shares host kernel.
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- **Analogy:** Virtualization is a separate house for each family; Containerization is separate apartments within one house.
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#### **5. Lunch Break (12:30 PM – 1:30 PM)**
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---
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#### **6. Demo + Lab 2: VirtualBox Setup & VM Creation (1:30 PM – 2:30 PM)**
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- **Topics Covered:**
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- Purpose of VirtualBox (cross-platform VM management).
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- System requirements (VT-x/AMD-V, 4GB+ RAM).
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- **Lab Steps:**
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1. Install VirtualBox (if not pre-installed).
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2. Create a VM: Allocate resources (2 CPU cores, 4GB RAM, 20GB disk).
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3. Attach CentOS ISO and start installation (pre-loaded ISO).
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- **Deliverable:** VM with CentOS installed (post-reboot).
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---
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#### **7. Lecture: Linux Fundamentals (CentOS/RHEL) (2:45 PM – 3:30 PM)**
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- **Topics Covered:**
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- History of Linux and key distributions (Debian vs RHEL).
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- Why enterprises prefer CentOS/RHEL (long-term support, security).
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- File system hierarchy (`/`, `/etc`, `/var`, `/home`).
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---
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#### **8. Lab 3: Linux Commands & File System (3:30 PM – 4:15 PM)**
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- **Activities:**
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- Navigate directories using `cd`, `ls`, `pwd`.
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- Create files (`touch`, `nano`), directories (`mkdir`).
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- Archive files with `tar` and search using `grep`.
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- **Deliverable:** A compressed log file containing specific error entries.
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---
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#### **9. Lab 4: User Permissions & Final Challenge (4:15 PM – 5:00 PM)**
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- **Activities:**
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- Create users/groups (`useradd`, `groupadd`).
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- Modify permissions (`chmod 755`, `chown`).
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- **Final Lab:**
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- SSH into a VM, create a secure directory for a team, and set permissions.
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- **Deliverable:** A shared folder accessible only to the `developers` group.
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---
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#### **10. Wrap-Up & Q&A (5:00 PM – 5:30 PM)**
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- **Activity:**
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- Recap key takeaways.
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- Distribute lab solution guides and additional resources.
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- Open floor for questions and feedback.
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---
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### **Training Materials Provided:**
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- Slide decks for lectures.
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- Step-by-step lab guides with commands.
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- Pre-configured CentOS VM template (for slower learners).
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- Cheat sheets for Linux commands and VirtualBox shortcuts.
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### **Instructor Notes:**
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- Emphasize hands-on troubleshooting during labs.
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- Encourage peer collaboration for complex tasks.
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- Adjust time allocations based on group pace.
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---
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This plan balances theory and practice, ensuring participants gain actionable skills in virtualization and Linux administration. |