nslookup 수행시 command not found 발생

문제풀이 에서 pod dns와 service dns 조회에서 nslookup이 수행 되지 않습니다.

one@master:~$ kubectl exec dns-deploy-66b6c48dd5-2nsb4 -it -- /bin/bash

root@dns-deploy-66b6c48dd5-2nsb4:/# nslookup 10.44.0.5

bash: nslookup: command not found

root@dns-deploy-66b6c48dd5-2nsb4:/# exit

exit

command terminated with exit code 127

one@master:~$ kubectl get pod dns-deploy-66b6c48dd5-2nsb4 -o wide

NAME                          READY   STATUS    RESTARTS   AGE   IP          NODE    NOMINATED NODE   READINESS GATES

dns-deploy-66b6c48dd5-2nsb4   1/1     Running   0          10m   10.44.0.5   node1   <none>           <none>

one@master:~$