Top 1,000 TCP and UDP ports (nmap default)Some quick notes on what nmap scans by default, the commands below will give you the ranges scanned, and there's also some lists suitable for copy/pasting. Top 1,000 TCP Ports: nmap -sT --top-ports 1000 -v -oG - Top 1,000 UDP Ports: nmap -sU --top-ports 1000 -v -oG - Ports ordered by frequency: sort -r -k3 /usr/share/nmap/nmap-services Example for specific services: nmap -sT -p*telnet* -v -oG - Co
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