掃描IP範圍的個別電腦服務port nmap

nmap -PN 10.56.40.48
nmap -PN 10.56.40.40-48 --no ping
nmap -sL 10.56.40.40-48 --List Scan - simply list targets to scan

nmap -sL 10.56.40.* | grep xxx.com.tw -- list網路內IP <-> hostname 對應
nmap -PI 10.56.34.* | grep "Interesting ports" -- list網路內IP <-> hostname 對應