shell:$ nslookup -timeout=2 -retry=1 'agri-peri.ac.ir' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: agri-peri.ac.ir Address: 185.143.234.235 Name: agri-peri.ac.ir Address: 185.143.233.235