🔍 Server Security & Health Auditor

An automated Bash script that generates a full server security and health audit report — checking user access, network exposure, and system resource health in a single run.

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What It Checks

• System & Kernel Profile — OS and kernel details (uname -a)
• User & Access Security — flags all accounts with root-level (UID 0) privileges from /etc/passwd
• Active Network Ports — lists all listening ports (ss -tuln, with netstat fallback)
• Hardware Resources — disk space and memory usage snapshot (df -h, free -h)

Why This Exists

Manually checking a server's security posture and health means running several different commands and piecing the results together. This script automates that into a single, repeatable, timestamped report — the kind of lightweight audit tool a sysadmin might run before a security review or as part of routine health checks.

Output

Running the script generates a clean, structured SECURITY_REPORT.md file with all findings organized into clear sections — system profile, user/access audit, network ports, and hardware resource snapshot.

Usage

chmod +x audit_server.sh
./audit_server.sh

The report will be saved as SECURITY_REPORT.md in the same directory.

Requirements

• A Linux system (tested on Ubuntu Server)
• Bash shell
• Standard core utilities (awk, grep, ss/netstat, df, free)

Concepts Applied

• Bash scripting & output redirection
• awk for text processing
• File permissions & script execution
• Networking commands
• System/hardware monitoring

License

MIT License — see LICENSE for details.

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Built as part of my Linux SysAdmin Journey — 100 Days of DevOps & Cloud Engineering.