오픈스택 클라우드 서버 구축(Stein)(1)-공통 기본 설정

#Controller, Network, Compute Node 설정

1. Install Chrony and Configure NTP server

 1) Install Chrony

[root@Controller]# yum -y install chrony

 

[root@Controller]# vi /etc/chrony.conf
#server 0.centos.pool.ntp.org iburst
#server 1.centos.pool.ntp.org iburst
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
server time.bora.net iburst

 

allow 10.0.0.0/24

 

[root@Controller]# systemctl start chronyd
[root@Controller]# systemctl enable chronyd

 2) 방화벽 설정 추가

[root@Controller]# firewall-cmd --add-service=ntp --permanent
success
[root@Controller]# firewall-cmd --reload
success