怎样才能知道某个网站的web服务器域名和IP地址？

在命令行输入：ping 域名就可以看见了。
Pinging baiducom [6113516394] with 32 bytes of data:
Reply from 6113516394: bytes=32 time=52ms TTL=56
Reply from 6113516394: bytes=32 time=53ms TTL=56
Reply from 6113516394: bytes=32 time=50ms TTL=56
Reply from 6113516394: bytes=32 time=186ms TTL=56
Ping statistics for 6113516394:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 50ms, Maximum = 186ms, Average = 85ms

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