diff --git a/centos-after-install.sh b/centos-after-install.sh
index ea005dc..c4865ac 100755
--- a/centos-after-install.sh
+++ b/centos-after-install.sh
@@ -22,7 +22,7 @@ sudo yum -y install epel-release
 sudo yum -y groupinstall "Development Tools"
 sudo yum -y remove nodejs
 curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
-sudo yum -y install nodejs iftop vim-enhanced wget nmap traceroute net-tools telnet minicom iperf htop bwm-ng bash-completion bash-completion-extras
+sudo yum -y install nodejs iftop vim-enhanced wget nmap traceroute net-tools telnet minicom iperf htop bwm-ng bash-completion bash-completion-extras whois bind-utils
 sudo yum -y update
 sudo npm install -g nodemon
 sudo npm install -g mocha