CentOS 6 - chrony - 没有合适的同步源
NTP 服务器在端口 123/313 上可用 nc -v -u -z -w 3 1.rhel.pool.ntp.org 123 Connection to 1.rhel.pool.ntp.org 123 port [udp/ntp] succeeded! nc -v -u -z -w 3 2.rhel.pool.ntp.org 123 Connection to 2.rhel.pool.ntp.org 123 port [udp/ntp] succeeded! nc -v -u -z -w 3 3.rhel.pool.ntp.org 123 Connecti...