Re: Variable SOAs in negative responses

2014-01-28 Thread Dave Warren
On 2014-01-28 14:20, Mark Andrews wrote: In message <52e8258e.3060...@hireahit.com>, Dave Warren writes: On 2014-01-28 11:28, Matus UHLAR - fantomas wrote: On 27.01.14 18:23, John Levine wrote: A friend (really) asks this question: they have some DNSBLs, which get a lot of queries. Sometimes

Re: Variable SOAs in negative responses

2014-01-28 Thread Mark Andrews
In message <52e8258e.3060...@hireahit.com>, Dave Warren writes: > On 2014-01-28 11:28, Matus UHLAR - fantomas wrote: > > On 27.01.14 18:23, John Levine wrote: > >> A friend (really) asks this question: they have some DNSBLs, which get > >> a lot of queries. Sometimes the answer has A or TXT recor

Re: Variable SOAs in negative responses

2014-01-28 Thread John Levine
>>For addresses that aren't listed, some of the NXDOMAINs are a lot less >>likely to change than others, e.g, the address of an outbound mail >>server at a large mail provider is unlikely ever to be listed, but a >>random host at a hosting provider in India, who knows. So he'd like >>to have the T

Re: Variable SOAs in negative responses

2014-01-28 Thread Dave Warren
On 2014-01-28 11:28, Matus UHLAR - fantomas wrote: On 27.01.14 18:23, John Levine wrote: A friend (really) asks this question: they have some DNSBLs, which get a lot of queries. Sometimes the answer has A or TXT records, meaning the corresponding address is listed in the DNSBL, sometimes it's N

Re: Variable SOAs in negative responses

2014-01-28 Thread Matus UHLAR - fantomas
On 27.01.14 18:23, John Levine wrote: A friend (really) asks this question: they have some DNSBLs, which get a lot of queries. Sometimes the answer has A or TXT records, meaning the corresponding address is listed in the DNSBL, sometimes it's NXDOMAIN which means the address isn't. For addresse

Re: Variable SOAs in negative responses

2014-01-27 Thread Mark Andrews
In message <20140127182300.13609.qm...@joyce.lan>, "John Levine" writes: > A friend (really) asks this question: they have some DNSBLs, which get > a lot of queries. Sometimes the answer has A or TXT records, meaning > the corresponding address is listed in the DNSBL, sometimes it's > NXDOMAIN wh

Variable SOAs in negative responses

2014-01-27 Thread John Levine
A friend (really) asks this question: they have some DNSBLs, which get a lot of queries. Sometimes the answer has A or TXT records, meaning the corresponding address is listed in the DNSBL, sometimes it's NXDOMAIN which means the address isn't. For addresses that aren't listed, some of the NXDOMA