Package: pdns-tools

"pdns-tools" package binaries on CentOS:

/usr/bin/dnsbulktest /usr/bin/dnsreplay /usr/bin/dnsscan /usr/bin/dnsscope /usr/bin/dnstcpbench /usr/bin/dnswasher /usr/bin/nproxy /usr/bin/nsec3dig

You may install this package on CentOS with yum install pdns-tools