System Administration Assignments

Table of Contents

• Introduction
• Task 1: System Monitoring Setup
• Task 2: User Management and Access Control
• Task 3: Backup Configuration for Web Servers
• Overall Report and Presentation

---

Introduction

This repository contains implementation details for three system administration tasks:

1. System Monitoring Setup
2. User Management and Access Control
3. Backup Configuration for Web Servers

Each task includes step-by-step implementation, configurations, relevant logs, and screenshots.

---

Task 1: System Monitoring Setup

Objective

To configure a monitoring system that ensures the development environment’s health, performance, and capacity planning.

Implementation Steps

1. Install Monitoring Tools
   • Installed htop for real-time system performance tracking.
   • Used df and du for disk usage monitoring.
2. Configure System Metrics Logging
   • Created a script to log CPU, memory, and process usage.
   • Set up cron to run the script every 1 minute.
3. Process Monitoring
   • Identified resource-intensive processes
4. Logging and Reporting
   • Configured log output to system_monitor.log.
   • Implemented a reporting structure for periodic review.

Expected Output

• Log files containing system performance snapshots.

  

• Screenshots of the monitoring setup in action.

• cron setup

  

---

Task 2: User Management and Access Control

Objective

To set up user accounts and configure secure access controls for new developers.

Implementation Steps

1. User Account Creation
   • Created user accounts for Sarah and Mike using useradd.
   • Set up secure passwords using passwd.
2. Directory Setup
   • Created isolated working directories:
     • /home/sarah/workspace
     • /home/mike/workspace
   • Set permissions using chown and chmod to restrict access.
3. Enforce Password Policies
   • Configured password expiration and complexity using chage and passwd.

Expected Output

• Confirmation of user creation and Screenshots of permission settings.

  

• Verification of password policy enforcement.

  

---

Task 3: Backup Configuration for Web Servers

Objective

To automate backups for Apache and Nginx web servers for data integrity and recovery.

Implementation Steps

1. Backup Script Development
   • Created a backup script to archive the following:
     • Apache: /etc/apache2/ and /var/www/html/
     • Nginx: /etc/nginx/ and /usr/share/nginx/html/
   • Compressed the backup files with timestamped filenames.
2. Cron Job Scheduling
   • Scheduled backups using cron to run every Sunday after 12:00 AM.
3. Backup Integrity Verification
   • Implemented a check to list the contents of the compressed files after creation.
   • Logged verification results in backup_YYYY-MM-DD-HH-MM-SS.log.

Expected Output

• Backup files stored in /backups/.

  

• Cron job configuration output.

  

• Verification log demonstrating backup integrity.

  

---

How to Use This Repository

1. Clone the repository:

   git clone https://github.com/Avinjay/Linux_assignment.git
   cd Linux_assignment

2. Review the scripts for monitoring, user management, and backups.
3. Execute scripts as needed following the documented steps.

---

Contributors

• Avinjay (avinjaymewada25@gmail.com)

---

This README serves as a comprehensive guide for setting up and managing essential system administration tasks efficiently.