U-NAPTR
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... Although this is defining a new and separate DDDS Application, dubbed
U-NAPTR, it is built from the same principles as the Straightforward
NAPTR (S-NAPTR ...
... miss to suit their needs.
This U-NAPTR is effectively a modest extension to S-NAPTR, to
accommodate the use of URIs ...
... Straightforward URI-Enabled NAPTR (U-NAPTR) ...
... S-NAPTR
specification [2]. The intention of U-NAPTR is to provide everything
that S-NAPTR does, except that it allows the use of the "U" flag in
...
...
U-NAPTR permits the same flags as S-NAPTR ("S", "A", or empty), plus
the "U" Flag. For the U-NAPTR ...
... U-NAPTR permits the same flags as S-NAPTR ("S", "A", or empty), plus
the "U" Flag. For the U-NAPTR DDDS Application, the presence of the
"U" Flag in the NAPTR record ...
...
U-NAPTR permits regular expressions of a form that does a complete
replacement of the matched string with a URI ...
... With this limited form of regular expression, applications using
U-NAPTR need not implement full regular expression parsers.
...
... Sample U-NAPTR DNS Records ...
... client obtains a NAPTR RR for a U-NAPTR-using
application that contains any other flag, that NAPTR RR ...
... requirements on IANA, but
provides the basis upon which U-NAPTR-using services can make use of
the existing IANA registries ...
... S-NAPTR; see
Section 8 of [2]. U-NAPTR has the additional consideration that
resolving URIs (from the result of the DDDS ...
... DNSSEC, client
software can be confident that the URI obtained using U-NAPTR is
indeed the one specified by the administrator of the domain ...