Problema parecido al de instalar dig (yum install dig). La solución es igual de simple:
yum install net-tools
(sudo yum install net-tools si no eres root)
En un minutito ya lo tienes instalado:
================================================================================ Package Arch Version Repository Size ================================================================================ Installing: bind-utils x86_64 32:9.9.4-38.el7_3.3 updates 202 k Installing for dependencies: bind-libs x86_64 32:9.9.4-38.el7_3.3 updates 1.0 M Updating for dependencies: bind-libs-lite x86_64 32:9.9.4-38.el7_3.3 updates 730 k bind-license noarch 32:9.9.4-38.el7_3.3 updates 83 k Transaction Summary ================================================================================ Install 1 Package (+1 Dependent package) Upgrade ( 2 Dependent packages) Total download size: 2.0 M