shell:$ nslookup -timeout=2 -retry=1 'res.wx.qq.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
res.wx.qq.com	canonical name = reswx.tc.qq.com.
reswx.tc.qq.com	canonical name = jxt2rgi0.ovslegodl.sched.ovscdns.com.
Name:	jxt2rgi0.ovslegodl.sched.ovscdns.com
Address: 43.159.79.49
Name:	jxt2rgi0.ovslegodl.sched.ovscdns.com
Address: 43.152.2.154