diff --git a/ci/ruby-bind-utils/Dockerfile b/ci/ruby-bind-utils/Dockerfile
new file mode 100644
index 0000000..0a5a13c
--- /dev/null
+++ b/ci/ruby-bind-utils/Dockerfile
@@ -0,0 +1,7 @@
+FROM fedora
+
+MAINTAINER Brian Cunnie <brian.cunnie@gmail.com>
+
+# need ruby to run dns-check.rb & bind-utils for dig & nslookup
+RUN dnf update -y; \
+  dnf install -y ruby bind-utils