<div dir="ltr"><div><span style="font-family:monospace,monospace">[ </span><span style="font-family:monospace,monospace"><span style="font-family:monospace,monospace">~</span>]# <b>nslookup <a href="http://centos.mirror.iweb.ca">centos.mirror.iweb.ca</a></b><br>Server:        172.21.241.18<br>Address:    172.21.241.18#53<br><br>** server can't find <a href="http://centos.mirror.iweb.ca">centos.mirror.iweb.ca</a>: NXDOMAIN<br><br><br><br>But ...<br><br><br><br>[ ~]$ <b>nslookup <a href="http://iweb.ca">iweb.ca</a></b><br>Server:        172.21.241.18<br>Address:    172.21.241.18#53<br><br>Non-authoritative answer:<br>Name:    <a href="http://iweb.ca">iweb.ca</a><br>Address: 174.142.1.18<br><br>[ ~]$ <b>nslookup <a href="http://mirror.iweb.ca">mirror.iweb.ca</a></b><br>Server:        172.21.241.18<br>Address:    172.21.241.18#53<br><br>Non-authoritative answer:<br>Name:    <a href="http://mirror.iweb.ca">mirror.iweb.ca</a><br>Address: 192.175.120.177<br><br>[ ~]$ <b>nslookup <a href="http://centos.mirror.iweb.ca">centos.mirror.iweb.ca</a></b><br>Server:        172.21.241.18<br>Address:    172.21.241.18#53<br><br>Non-authoritative answer:<br>Name:    <a href="http://centos.mirror.iweb.ca">centos.mirror.iweb.ca</a><br>Address: 192.175.120.169</span><br><br><br><br></div>What am I missing?  There is definitely something I do not understand.<br><br><br></div>