根据官网, 把rpm包转换为deb包,再安装
https://nmap.org/book/inst-linux.html#inst-debian
If you don't have the alien command, install it with a command such as sudo apt-get install alien
Download the Nmap RPMs for your platform (x86 or x86-64) from https://nmap.org/download.html. This description will use
nmap-5.21-1.x86_64.rpm
Verify the download integrity as described in the section called “Verifying the Integrity of Nmap Downloads”.
Generate a Debian package with a command such as sudo alien nmap-5.21-1.x86_64.rpm
Install the Debian package with a command such as sudo dpkg --install nmap_5.21-2_amd64.deb
Steps 2–5 can be repeated for the other Nmap RPMs such as Zenmap, Ncat, and Nping.