Package: nmap

"nmap" package binaries on CentOS:

/usr/bin/ncat /usr/bin/ndiff /usr/bin/nmap /usr/bin/nping

You may install this package on CentOS with yum install nmap

"nmap" package binaries on Debian:

/usr/bin/ncat /usr/bin/nmap /usr/bin/nping

You may install this package on Debian with apt-get install nmap