Port Scanning


Discovering Open TCP Ports

CommandDescription
sudo nmap <target> --top-ports=10Top 10 TCP Ports
sudo nmap <target> -p- --packet-trace -Pn -n --disable-arp-pingTracing the Packets
sudo nmap <target> -p- --packet-trace --disable-arp-ping -Pn -n --reason -sTConnect Scan

Discovering Open UDP Ports

CommandDescription
sudo nmap <target> -F -sUUDP Port Scan

Saving the Results in Different Formats

CommandDescription
sudo nmap <target> -p- -oA targetSaves the results in all formats
cat target.nmapNormal Output
cat target.gnmapGrepable Output
cat target.xmlXML Output
xsltproc target.xml -o target.htmlStyle Sheets (XML to HTML)