shell:$ nslookup -timeout=2 -retry=1 'signin.samsungknox.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	signin.samsungknox.com
Address: 13.226.238.78
Name:	signin.samsungknox.com
Address: 13.226.238.113
Name:	signin.samsungknox.com
Address: 13.226.238.22
Name:	signin.samsungknox.com
Address: 13.226.238.41
Name:	signin.samsungknox.com
Address: 2600:9000:201f:d800:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:2a00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:7400:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:b600:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:9600:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:3400:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:1e00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:6c00:12:78c2:8b80:93a1