The domain parameter instructs the resolving function to append <domainname> to the end of the string to lookup if the string does not end with a . (period).
domain 参数指示如果字符串不以.(句点)结尾,则解析功能将 附加到要查找的字符串的末尾。
2
Listing 6 shows the output during a Domainname Server (DNS) lookup for a hostname.
清单6显示了域名服务器(DNS)查找某个主机名期间的输出。
3
Reduce DNS lookups: Whenever a user types in a domainname in their web browser address field, the browser performs a DNS lookup to the IP.