shell:$ nslookup -timeout=2 -retry=1 'csr.onet.pl'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	csr.onet.pl
Address: 13.227.87.10
Name:	csr.onet.pl
Address: 13.227.87.45
Name:	csr.onet.pl
Address: 13.227.87.54
Name:	csr.onet.pl
Address: 13.227.87.29