2. yum install 명령어를 이용해 iptables-services를 설치합니다.
[root@controller etc]# cd [root@controller ~]# yum install iptables-services Loaded plugins: fastestmirror base | 3.6 kB 00:00:00 centos-ceph-hammer | 2.9 kB 00:00:00 centos-openstack-mitaka | 2.9 kB 00:00:00 centos-qemu-ev | 2.9 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 Loading mirror speeds from cached hostfile * base: mirror.navercorp.com * extras: mirror.navercorp.com * updates: mirror.navercorp.com ... Transaction Summary =========================================================================== Install 1 Package Total download size: 50 k Installed size: 24 k Is this ok [y/d/N]: y Downloading packages: iptables-services-1.4.21-16.el7.x86_64.rpm | 50 kB 00:00:00 ... Installed: iptables-services.x86_64 0:1.4.21-16.el7 Complete!