这是一套完整 DNS 查询解析工具, 相当于DOS/UNIX下的 nslookup, 相当好用. 可以让你知道要如何查网域的 MX, NS, Address 等数据, 是写网络程序的你一定要知道的知识!-This is a complete DNS inquiries analytic tools, the equivalent of DOS / UNIX under the nslookup. very handy. can let you know how to check domain MX, NS, Address data, is written procedures for the network you must know the knowledge!