diego@localhost sdk/include/Poco/Net]# dig b.wpss.cn; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> b.wpss.cn;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6817;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0;; QUESTION SECTION:;b.wpss.cn. IN A;; ANSWER SECTION:b.wpss.cn. 575 IN CNAME a.wpss.cn.a.wpss.cn. 575 IN A 10.211.55.2a.wpss.cn. 575 IN A 10.211.55.3;; Query time: 17 msec;; SERVER: 10.211.55.1#53(10.211.55.1);; WHEN: Thu May 26 16:12:16 2016;; MSG SIZE rcvd: 75