shell:$ nslookup -timeout=2 -retry=1 'down-update.qq.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
down-update.qq.com	canonical name = downupdate.lmtlego.sched.apdcdn.com.
Name:	downupdate.lmtlego.sched.apdcdn.com
Address: 43.152.182.24
Name:	downupdate.lmtlego.sched.apdcdn.com
Address: 43.152.182.20
Name:	downupdate.lmtlego.sched.apdcdn.com
Address: 43.152.182.65