Systems Administration, Networking & Cybersecurity (ARSCS)

This repository contains a collection of laboratory exercises and automation scripts focused on Systems Administration, Network Infrastructure, and Cybersecurity. The projects aim to demonstrate proficiency in managing secure environments, configuring robust networks, and implementing defensive security measures.

Core Competencies

The repository is divided into three main pillars:

• Systems Administration: Automated provisioning, user management, and server hardening (Linux/Unix environments).
• Networking: Configuration and troubleshooting of routing protocols, VLANs, and firewall rules (Cisco/Juniper/Virtual environments).
• Cybersecurity: Security auditing, vulnerability assessment, penetration testing scripts, and incident response simulations.

Technical Toolkit

• Languages: Bash, Python, PowerShell.
• Networking Gear/Simulators: Cisco Packet Tracer, GNS3, or Wireshark.
• Security Tools: Nmap, Metasploit, OpenVAS, and IPTables/NFTables.
• OS Focus: Debian/Ubuntu Server, RHEL, and Kali Linux.

Lab Examples

• Automated Backups: Shell scripts for secure remote backups using rsync and ssh.
• Network Hardening: Implementation of ACLs and VPN configurations.
• Log Analysis: Python scripts for parsing system logs to detect unauthorized access attempts.

Setup & Usage

1. Clone the repo:

   git clone [https://github.com/Cantellos/SysAdmin-Network-Security.git](https://github.com/Cantellos/SysAdmin-Network-Security.git)