Escaneo de puertos
Bash
for PORT in {1..65535}; do (echo > /dev/tcp/X.X.X.X/$PORT) >/dev/null 2>&1 && echo $PORT is open; done
for PORT in {1..65535}; do timeout 1 bash -c "</dev/tcp/X.X.X.X/$PORT >/dev/null" && echo "port $PORT is open"; doneNetcat
nc -zv <target> 1-65535Nmap
Escaneo de puertos TCP
# Principales 1000 puertos TCP
nmap -sS --open -n <target> -oN nmap-main-tcp-ports.txt
# Todos los puertos TCP
nmap -sS -p- --open -n <target> -oN nmap-all-tcp-ports.txtEscaneo de puertos UDP
Escaneo de puertos TCP y UDP
Invoke-Portscan
Idle scan
Nmap
Hping
Evasión de firewall/IDS
Nmap
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