Re: RRL and avoiding contributing to DDoS (Was: How to suppress ADDITIONAL SECTION per zone)

2013-07-05 Thread Vernon Schryver
> From: Dave Warren > I haven't been following the RRL discussions too closely, is this patch > scheduled to be included in BIND9 proper or will it remain a patch? } From: Evan Hunt each at isc.org } > It's not built into bind (yet). } } Correct. For the record, it'll be in 9.10.0 by default

RRL and avoiding contributing to DDoS (Was: How to suppress ADDITIONAL SECTION per zone)

2013-07-05 Thread Dave Warren
On 2013-07-05 07:21, John Wobus wrote: I endorse this suggestion: we were faced with such attacks and were naturally leery about issues we might run into running a patched bind and the additional tuning it could require. Our experience is: the RRL patch, used with its default parameters, simply

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-05 Thread Vernon Schryver
> From: John Wobus > > Other possibility is to implement packet rate limiting - a patch was > > discussed here a few days/weeks ago. > > I endorse this suggestion: we were faced with such attacks and were > naturally leery about issues we might run into running a patched bind > and the additional

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-05 Thread John Wobus
Other possibility is to implement packet rate limiting - a patch was discussed here a few days/weeks ago. I endorse this suggestion: we were faced with such attacks and were naturally leery about issues we might run into running a patched bind and the additional tuning it could require. Our exp

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-01 Thread Matus UHLAR - fantomas
On 01.07.13 04:02, blrmaani wrote: We are noticing that a handful of our domains are being used for amplification attacks and we would like to reduce outgoing (DNS response) packet size. One solution is to reduce the additional sections in the response for these handful zones and I would like to

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-01 Thread Phil Mayers
On 01/07/13 12:02, blrmaani wrote: We are noticing that a handful of our domains are being used for amplification attacks and we would like to reduce outgoing (DNS response) packet size. One solution is to reduce the additional sections in the response for these handful zones and I would like to

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-01 Thread Steven Carr
If these are authoritative DNS servers then just enable minimal-responses, so clients will only ever get the records that they requested. Steve On 1 July 2013 12:02, blrmaani wrote: > We are noticing that a handful of our domains are being used for > amplification attacks and we would like to r

Re: How to suppress ADDITIONAL SECTION per zone

2013-07-01 Thread blrmaani
We are noticing that a handful of our domains are being used for amplification attacks and we would like to reduce outgoing (DNS response) packet size. One solution is to reduce the additional sections in the response for these handful zones and I would like to know if there is any way to add s

Re: How to suppress ADDITIONAL SECTION per zone

2013-06-24 Thread Steven Carr
On 24 June 2013 08:14, Matus UHLAR - fantomas wrote: > You still have not answered my question, so I repeat it: > >>> > What is the point of your question? > I think what Matus wants to know is your reasoning/problem/issue about not returning records from the cache for those zones? The answer is

Re: How to suppress ADDITIONAL SECTION per zone

2013-06-24 Thread Matus UHLAR - fantomas
On Friday, June 21, 2013 11:26:25 AM UTC-7, Lawrence K. Chen, P.Eng. wrote: I thought I had read somewhere (which I can't locate), that additional-from-auth can be used in global or view scope. On 23.06.13 23:25, blrmaani wrote: Yes, works in Global view. I am trying to prevent additional rec

Re: How to suppress ADDITIONAL SECTION per zone

2013-06-23 Thread blrmaani
Yes, works in Global view. I am trying to prevent additional records being sent from a selected list of zone in our configuration.. blr On Friday, June 21, 2013 11:26:25 AM UTC-7, Lawrence K. Chen, P.Eng. wrote: > I thought I had read somewhere (which I can't locate), that > additional-from-aut

Re: How to suppress ADDITIONAL SECTION per zone

2013-06-21 Thread Lawrence K. Chen, P.Eng.
I thought I had read somewhere (which I can't locate), that additional-from-auth can be used in global or view scope. - Original Message - > On 21.06.13 02:00, blrmaani wrote: > >The additional-from-auth yes_or_no ; option is a global option. I > >would > > like to know if there is a per-

Re: How to suppress ADDITIONAL SECTION per zone

2013-06-21 Thread Matus UHLAR - fantomas
On 21.06.13 02:00, blrmaani wrote: The additional-from-auth yes_or_no ; option is a global option. I would like to know if there is a per-zone configuration to do the same in BIND9 configuration? I couldn't find it in BIND9 ARM. What is the point of your question? -- Matus UHLAR - fantomas, u

How to suppress ADDITIONAL SECTION per zone

2013-06-21 Thread blrmaani
The additional-from-auth yes_or_no ; option is a global option. I would like to know if there is a per-zone configuration to do the same in BIND9 configuration? I couldn't find it in BIND9 ARM. Thanks! Blr ___ Please visit https://lists.isc.org/mailm