dnsdist for EL-6. This is not in EPEL because of the need for a newer gcc.
To install:
wget -O /etc/yum.repos.d/tjikkun-dnsdist-epel-6.repo \ https://copr.fedorainfracloud.org/coprs/tjikkun/dnsdist/repo/epel-6/tjikkun-dnsdist-epel-6.repo yum install dnsdist
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/tjikkun/dnsdist/