Linux fundamentals WEEK 3

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Linux Fundamentals

1. Advanced File Permissions and Ownership

• Changing Ownership:

  • Use the chown command to change ownership of files and directories.

  • Manage user and group ownership effectively.

• File Permissions Management:

  • Explore symbolic and numeric modes for chmod.

  • Apply recursive permission changes with ease.

2. Disk and Storage Management

• Commands for Disk Management:

  • Analyze disk space usage with df.

  • Summarize directory sizes using du.

  • Inspect block device information with lsblk.

• Mounting and Unmounting Drives:

  • Master mount and umount commands.

  • Automate drive mounts through /etc/fstab.

3. System Monitoring and Performance

• Monitoring Tools:

  • Use htop or top for real-time process monitoring.

  • Monitor disk I/O with iotop.

• Log Analysis:

  • Navigate systemd logs using journalctl.

  • Monitor real-time logs with tail -f.

4. Shell Scripting Basics

• Automation with Shell Scripts:

  • Create scripts to automate everyday tasks.

  • Utilize variables, loops, and conditionals.

• Best Practices:

  • Enhance readability with comments.

  • Handle errors gracefully in your scripts.

5. Networking in Linux

• Network Configuration:

  • Configure network interfaces using ifconfig or ip commands.

• Network Monitoring Tools:

  • Explore active connections with netstat or ss.

  • Diagnose issues using ping, traceroute, and tcpdump.

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Networking Topics

1. Proxy, VPN, Firewall, and DMZ Concepts

• Firewall Configuration:

  • Set up rules using iptables or ufw.

• VPN Basics:

  • Understand VPN protocols and configurations.

• DMZ Concepts:

  • Learn the role of DMZ in network security.

2. Advanced IP Addressing

• CIDR Notations:

  • Calculate subnets and subnet masks.

• Static and Dynamic IPs:

  • Configure static IP addresses.

  • Understand DHCP for dynamic IP assignment.

3. Ports and Protocols

• Common Ports and Protocols:

  • Dive into HTTP, HTTPS, FTP, SMTP, and more.

• SSL/TLS Encryption:

  • Grasp the basics of secure communication protocols.

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Git and GitHub

1. Git Collaboration

• Remote Repository Management:

  • Add and manage remote repositories.

  • Fetch and pull updates seamlessly.

• Pull Requests and Merge Conflicts:

  • Create and review pull requests.

  • Master strategies for resolving conflicts.

2. Git Tags and Releases

• Tagging:

  • Create lightweight and annotated tags.

• Versioning:

  • Use tags for effective software release management.

3. Git Hooks

• Automating Tasks:

  • Set up client-side and server-side hooks.

  • Implement pre-commit and post-commit hooks for efficiency.

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Additional Tools and Concepts

1. Virtualization vs. Containers

• Virtualization:

  • Get hands-on with VirtualBox or VMware.

• Containers:

  • Explore Docker basics.

  • Understand Kubernetes fundamentals.

2. Troubleshooting and Debugging

• Network and System Issues:

  • Apply common troubleshooting techniques.

  • Use diagnostic commands effectively.

• Script Debugging:

  • Identify and fix errors in shell scripts.

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I am proud to share that I have successfully completed this learning plan. Each concept learned has enriched my understanding and skills. I look forward to applying this knowledge in real-world scenarios and continuing my learning journey.

Happy learning!