sandoche BALAKRICHENAN wrote:

I want to rewrite a query of the form "sgtin.5.4.0.0.0.1.3.2.4.5.6.7.6.id.onsam.test" to "sgtin.5.4.0.0.0.1.3.2.4.5.6.7.6.id.onseu.test" using NAPTR rewrite.

The NAPTR RR in the zone config is as follows:

sgtin.5.4.0.0.0.1.3.2.4.5.6.7.6.id.onsam.test IN NAPTR 0 0 "r" "" "!^sgtin\.([0-9])$!\1.id.onseu.test!" .

BIND does not  accept backref "\1" . It shows a syntax error.

Is the above regexp correct?

        NAPTR might not be the only way to express what you're
        trying to do.  Without knowing quite what that is [ 8-) ],
        I wonder whether you couldn't make do with a simple CNAME?
        The right-hand-side provisioning would then repeat part of
        the owner-name; this would be ugly, but would probably involve
        lighter application processing.

        /Niall

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