[SURBL-Discuss] Lookup web page not showing blacklisted urls?

[Raymond Dijkxhoorn]

Hi!

>> And here's two executed at York University, also in Toronto:
>>
>> $ dig +short @130.63.168.21 twitter.com.multi.surbl.org
>> 216.234.179.13
>> $ dig +short @130.63.237.99 twitter.com.multi.surbl.org
>> 203.161.230.171
>
> I confirm...
>
> [martins at localhost ~]$ host twitter.com.multi.surbl.org.
> Host twitter.com.multi.surbl.org. not found: 3(NXDOMAIN)
> [martins at localhost ~]$ host twitter.com.multi.surbl.org.
> twitter.com.multi.surbl.org has address 209.145.54.50
> Host twitter.com.multi.surbl.org not found: 3(NXDOMAIN)
> Host twitter.com.multi.surbl.org not found: 3(NXDOMAIN)
> [martins at localhost ~]$ host twitter.com.multi.surbl.org.
> Host twitter.com.multi.surbl.org. not found: 3(NXDOMAIN)
> [martins at localhost ~]$ host twitter.com.multi.surbl.org.
> twitter.com.multi.surbl.org has address 203.161.230.171
> Host twitter.com.multi.surbl.org not found: 3(NXDOMAIN)
> Host twitter.com.multi.surbl.org not found: 3(NXDOMAIN)

> twitter.com.multi.surbl.org has address 216.234.179.13
> [martins at localhost ~]$ host twitter.com.multi.surbl.org. | grep -v NXDOMAIN
> [martins at localhost ~]$ host twitter.com.multi.surbl.org. | grep -v NXDOMAIN
> twitter.com.multi.surbl.org has address 211.94.66.147
> [martins at localhost ~]$

Allmost sounds like either a broken DNS somewhere or ... cache poisoning.

Would be interesting to check this with a capture running so you see whaqt 
server is telling this.

Bye,
Raymond.