Fast Scan (nmap -F ...)
Nmap scan (nmap ...)
Ping Scan (nmap -sP ...)
Port scan (nmap -sV -p 21,22,25,80,110,143,443,445 ...)
Scan OS information and Traceroute (nmap -A ...)
OS Detection (nmap -O ...)
CVE-2021-41773 Path Traversal (nmap --script=http-vuln-cve-2021-41773 -p 80,443,631,7080,8080,8443,8088,5800,3872,8180,8000 ...)
$ Forward-confirmed Reverse DNS (nmap -sn -Pn --script fcrdns ...)
$ Firewall Detection (nmap -sA ...)
$ Scan the top 5 ports (nmap --top-ports 5 ...)
$ Scan the top 20 ports (nmap --top-ports 20 ...)
$ Scan the top 100 ports (nmap --top-ports 100 ...)
$ Scan top TCP ports (nmap --top-ports 20 -sT ...)
$ Scan top UDP ports (nmap --top-ports 20 -sU ...)
$ Scan All TCP ports (nmap -p- ...)
$ Scan All UDP ports (nmap -sU -p- ...)
$ Detecting malware infections (nmap --top-ports 3 -sV --script=http-malware-host ...)
$ Banner grabber (nmap --script banner ...)
$ Display the HTTP headers (nmap --script http-headers -p 80,443,631,7080,8080,8443,8088,5800,3872,8180,8000 ...)
$ Check HTTP Vulnerabilities (nmap --script "http-vuln*" -p 80,443,631,7080,8080,8443,8088,5800,3872,8180,8000 ...)
Check log4shell or LogJam (nmap -T4 -v --script=dnslog-cn,http-log4shell,imap-log4shell,smtp-log4shell,ssh-log4shell ...)