network-diag

Run network diagnostics including ping, DNS resolution, port checks, and traceroute.

Usage

# Quick connectivity check
python3 scripts/netdiag.py check google.com

# Check if a port is open
python3 scripts/netdiag.py port example.com 443

# DNS resolution
python3 scripts/netdiag.py dns example.com

# Full diagnostic report
python3 scripts/netdiag.py full example.com

Commands

• check — Ping-style connectivity check
• port — Check if a TCP port is open
• dns — Resolve DNS for a hostname
• full — Run all diagnostics on a host