These people should run Split-horizon DNS;
| Host | Wrong IP address | Reason |
|---|---|---|
| dns01-farm8.kinghost.net | 10.5.8.2 | RFC 1918 |
| dns02-farm8.kinghost.net | 10.7.8.3 | RFC 1918 |
| ibauhns4.duhosting.ae | 10.79.128.22 | RFC 1918 |
| ibdxbns4.duhosting.ae | 10.198.18.14 | RFC 1918 |
| mail.easycaisoft.com | 192.168.1.200 | RFC 1918 |
| ns.telenettv.ru | 192.168.128.197 | RFC 1918 |
| ns02.foxinc.com | 10.215.244.27 | RFC 1918 |
| ns1.comeconnect.com | 64:ff9b::caa4:2051 | RFC 6052 |
| ns1.netplus.co.in | 64:ff9b::6729:17c2 | RFC 6052 |
| ns2.comeconnect.com | 64:ff9b::caa4:2052 | RFC 6052 |
| ns2.netplus.co.in | 64:ff9b::6729:17c3 | RFC 6052 |
| ns2.parspack.co | 10.201.2.199 | RFC 1918 |
| ns3.tataidc.co.in | 64:ff9b::6708:2d05 | RFC 6052 |
| ns4.tataidc.co.in | 64:ff9b::6708:2e05 | RFC 6052 |
| ns5.tataidc.co.in | 64:ff9b::6708:2c05 | RFC 6052 |
| secret-things.f00f.org | ::1 | IPv6 Localhost |
| viniro.com | ::1 | IPv6 Localhost |
| waterkaart.net | ::ffff:136.144.138.216 | IPv4-mapped IPv6 addresses |
| www.grame.fr | ::ffff:88.198.176.156 | IPv4-mapped IPv6 addresses |
Last update: Mon 22 Apr 06:02:01 UTC 2019
You can block answers like these with Bind's 'deny-answer-addresses' feature;
deny-answer-addresses {
// Unconfigured
0.0.0.0;
// RFC 1918
10.0.0.0/8;
172.16.0.0/12;
192.168.0.0/16;
// RFC 3927
169.254.0.0/16;
// IPv6
// :: to ::ffff:ffff:ffff.
// Includes ::, ::1, IPv4-Compatible IPv6 Addresses ::/96,
// and IPv4-mapped IPv6 addresses ::ffff:0:0/96
::/80;
// RFC 6052
64:ff9b::/96;
// Reserved for Documentation
2001:db8::/32;
// IPv6 Unique Local
fc00::/7;
// IPv6 Link local
fe80::/10;
// IPv6 Site local
fec0::/10;
// Your IPv6 address range(s)
Net/Mask
} except-from { "Your.Domain"; };
deny-answer-aliases { "Your.Domain"; };
The produces log entries like;
Aug 21 19:31:01 sput named[1601]: answer address 10.0.0.100 denied for spacefon.com/A/IN
Not blocking these addresses can be a serious security risk.