Package: dnsmasq-utils

"dnsmasq-utils" package binaries on CentOS:

/usr/bin/dhcp_lease_time /usr/bin/dhcp_release

You may install this package on CentOS with yum install dnsmasq-utils

"dnsmasq-utils" package binaries on Debian:

/usr/bin/dhcp_lease_time /usr/bin/dhcp_release

You may install this package on Debian with apt-get install dnsmasq-utils