dnsPromises.resolve4(hostname[, options])
hostname
<string> 要解析的主机名。options
<Object>ttl
<boolean> 检索每条记录的生存时间值 (TTL)。 当为true
时,Promise
使用{ address: '1.2.3.4', ttl: 60 }
对象数组而不是字符串数组进行解决,TTL 以秒表示。
使用域名系统协议为 hostname
解析 IPv4 地址(A
记录)。
当成功时,Promise
使用 IPv4 地址数值(例如 ['74.125.79.104', '74.125.79.105', '74.125.79.106']
)解决。
hostname
<string> Host name to resolve.options
<Object>ttl
<boolean> Retrieve the Time-To-Live value (TTL) of each record. Whentrue
, thePromise
is resolved with an array of{ address: '1.2.3.4', ttl: 60 }
objects rather than an array of strings, with the TTL expressed in seconds.
Uses the DNS protocol to resolve IPv4 addresses (A
records) for the
hostname
. On success, the Promise
is resolved with an array of IPv4
addresses (e.g. ['74.125.79.104', '74.125.79.105', '74.125.79.106']
).