Re: Truncated DNS message over UDP

2012-06-27 Thread Jay Ford
On Wed, 27 Jun 2012, Sebastiano Di Paola wrote: Hello everyone, before sending this email I tried do some seaches on this topic, but no luck so far...so before bothering bind-workers here's my question I was wondering if a configuration option exists in order to force bind server to send a "mini

Re: Truncated DNS message over UDP

2012-06-27 Thread Sebastiano Di Paola
Hi, Mark you are right saing "When it's possible..." But I want to address the the situation when the DNS server is made to limit response on 512 Bytes (i.e. for bind server parameter udp-max-size 512) and the answer is bigger. (Imagine I have a big TXT record for example) As bind up to version

RE: Truncated DNS message over UDP

2012-06-27 Thread Marc Lampo
Hello, Several RFC's on DNS do state that name servers (not only Bind) should avoid, if possible, to send messages that would require the TC bit set in the reply. Replies can be stay shorter if some sections (authority/additional) are not included in the reply. I know for sure that DNSSEC related