Aaron Shober

• Flatiron School (Live Instruction)
• Completed July 2023
• Completed a rigorous, instructor-led program centered on foundational cybersecurity concepts, system administration, and network security Developed practical skills through hands-on labs and projects involving Linux and Windows environments, shell scripting, security monitoring, vulnerability assessment, and incident response Gained experience with a variety of tools and techniques essential for securing and managing modern IT infrastructures in both operational and security-focused roles
• Key Linux & Systems Administration Skills:
• Linux Server Setup & Configuration

Installed and configured Ubuntu Server systems, performing initial setup including user management, file permissions, and service configuration Managed system packages using APT and practiced applying security patches and updates to maintain system integrity Configured SSH for secure remote access, including key-based authentication and disabling root login to enhance security Set up basic firewall rules using UFW (Uncomplicated Firewall) to control inbound and outbound traffic

• User & Permission Management
• Created and managed users and groups, assigned appropriate permissions using chmod, chown, and Access Control Lists (ACLs)Implemented best practices for password policies and sudo privileges to enforce least privilege access

• System Monitoring & Logging
• Used core Linux commands and tools such as top, htop, df, du, and ps to monitor system resource usage Analyzed system logs with journalctl and traditional log files in /var/log to troubleshoot and identify issues
• Service & Network Management Configured essential network services like DNS, DHCP, and NFS for file sharing in lab environments Employed network troubleshooting tools including ping, netstat, ss, traceroute, and tcpdump Gained familiarity with basic network security concepts such as IP filtering and port management
• Security & System Hardening
• Implemented Linux security best practices: disabling unused services, managing firewall rules Practiced vulnerability scanning and patch management to maintain system security posture
• Incident Response Basics
• Performed basic forensic investigations on Linux systems by analyzing logs and system activity Gained experience with common command-line tools to detect unauthorized activity and remediate security incidents