nmap, telnet, hydra
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Open port highest but less than 10,000 nmap -p1-10000 [IP] answer: nmap -p1-10000 10.10.91.5
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Port outside of 1000 ports, above 10000 nmap -sT -p1-65535 [IP] -v answer: nmap -sT -p1-65535 10.10.91.5 -v
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TCP ports open count tcp ports
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HTTP Server Header telnet [IP] 80
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SSH Server Header telnet [IP] 22