1.named服务启动成功，但nslookup解析报错：
[root@xiamihost3 named]# service named restart 停止 named： [确定] 启动 named： [确定] [root@xiamihost3 named]# nslookup www.hngd.com ;; connection timed out; trying next origin ;; connection timed out; no servers could be reached [root@xiamih
