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Our home network uses DNS Servers provided by talktalk a long time ago (Long time customers)
62.24.202.5
62.24.134.2
and it seems we don't have any issues resolving google.com from these.
ping google.com
PING google.com (173.194.41.167): 56 data bytes
...
nslookup google.com
Server: 192.168.2.254
Address: 192.168.2.254#53
Non-authoritative answer:
Name: google.com
Address: 173.194.41.169
Name: google.com
Address: 173.194.41.167
Name: google.com
Address: 173.194.41.174
Name: google.com
Address: 173.194.41.162
Name: google.com
Address: 173.194.41.165
Name: google.com
Address: 173.194.41.168
Name: google.com
Address: 173.194.41.161
Name: google.com
Address: 173.194.41.164
Name: google.com
Address: 173.194.41.166
Name: google.com
Address: 173.194.41.163
Name: google.com
Address: 173.194.41.160
All seems good here.
dig a google.com
;; ANSWER SECTION:
google.com. 232 IN A 173.194.41.133
google.com. 232 IN A 173.194.41.142
google.com. 232 IN A 173.194.41.128
google.com. 232 IN A 173.194.41.132
google.com. 232 IN A 173.194.41.129
google.com. 232 IN A 173.194.41.135
google.com. 232 IN A 173.194.41.131
google.com. 232 IN A 173.194.41.130
google.com. 232 IN A 173.194.41.136
google.com. 232 IN A 173.194.41.137
google.com. 232 IN A 173.194.41.134
whois 173.194.41.133
NetRange: 173.194.0.0 - 173.194.255.255
CIDR: 173.194.0.0/16
OriginAS: AS15169
NetName: GOOGLE
NetHandle: NET-173-194-0-0-1
Parent: NET-173-0-0-0-0
NetType: Direct Allocation
RegDate: 2009-08-17
Updated: 2012-02-24
Ref: http://whois.arin.net/rest/net/NET-173-194-0-0-1
...
However, if I use the @ns1.google.com address given in the blog post.
dig @ns1.google.com a google.com
;; ANSWER SECTION:
google.com. 300 IN A 78.144.6.221
google.com. 300 IN A 78.144.6.212
google.com. 300 IN A 78.144.6.222
google.com. 300 IN A 78.144.6.237
google.com. 300 IN A 78.144.6.231
google.com. 300 IN A 78.144.6.251
google.com. 300 IN A 78.144.6.247
google.com. 300 IN A 78.144.6.232
google.com. 300 IN A 78.144.6.241
google.com. 300 IN A 78.144.6.217
google.com. 300 IN A 78.144.6.226
google.com. 300 IN A 78.144.6.242
google.com. 300 IN A 78.144.6.216
google.com. 300 IN A 78.144.6.227
google.com. 300 IN A 78.144.6.246
google.com. 300 IN A 78.144.6.236
host 78.144.6.221
221.6.144.78.in-addr.arpa domain name pointer host-78-144-6-221.as13285.net.
whois 78.144.6.221
inetnum: 78.144.0.0 - 78.147.255.255
netname: OPAL-DSL
descr: Opal Telecom DSL
country: GB
...
person: Gavin Ditchfield
address: TalkTalk Communications Limited
address: Northbank Industrial Estate
address: Irlam
address: Manchester
address: M44 5BL
address: United Kingdom
...
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