Stop named truncating

[Jim Reid]

>>>>> "Jens" == jugger2000  <jugger2000 at my-deja.com> writes:

    Jens> Hi all, asking the authoritive name server directly will
    Jens> gets the full content.  asking the authoritive name server
    Jens> via another name server will truncate after 512 characters.
    Jens> Question is it possible to change the parameters for named /
    Jens> BIND or disable the truncation?

You are mistaken. If *any* name server has to send >512 bytes of
answer, it sends a truncated response. Whether the server is
authoritative or not is irrelevant. The client that sent the query is
then supposed to repeat the query using a TCP connection to retrieve
all the data. You'd need to rewrite RFC1035 , get that agreed as a
standard and have every DNS implementation upgraded and deployed
world-wide to change that 512 byte limit. EDNS0 - defined in RFC2671 -
provides a backwards compatible mechanism for allowing larger payloads
in DNS UDP packets. However it's not yet widely implemented and
deployed. IIUC it's only implemented in BIND9.