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CUPS / IPP (Port 631)

nmap

# run all cups-related nse scripts
nmap -sV -p631 --script=cups* <target>

# lists printers managed by the CUPS printing service
nmap -sV -p631 --script=cups-info <target>

# lists currently queed print jobs of the remote CUPS service grouped by printer
nmap -sV -p631 --script=cups-queue-info <target>

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