Package: rear

"rear" package binaries on CentOS:

/usr/sbin/rear /usr/share/rear/skel/default/bin/dhclient-script /usr/share/rear/skel/default/bin/dhcpcd.sh /usr/share/rear/skel/default/bin/ifup /usr/share/rear/skel/default/bin/login

You may install this package on CentOS with yum install rear