From: Andreas Gustafsson
In - implementation. +
+ +Stub zones can be used to eliminate the need for glue NS record +in a parent zone at the expense of maintaining a stub zone entry and +a set of name server addresses in named.conf. +This usage is not recommended for new configurations, and BIND 9 +supports it only in a limited way. +In BIND 4/8, zone transfers of a parent zone included the NS records -from stub children of that zone. This meant that, in some cases, -users could get away with configuring child stubs only in the master -server for the parent zone. 4/8, zone transfers of a parent zone +included the NS records from stub children of that zone. This meant +that, in some cases, users could get away with configuring child stubs +only in the master server for the parent zone. BIND 9 never mixes together zone data -from different zones in this way. Therefore, if a +9 never mixes together zone data from different zones in this +way. Therefore, if a BIND 9 master -serving a parent zone has child stub zones configured, all the slave -servers for the parent zone also need to have the same child stub -zones configured..
9 master serving a parent +zone has child stub zones configured, all the slave servers for the +parent zone also need to have the same child stub zones +configured. + +Stub zones can also be used as a way of forcing the resolution +of a given domain to use a particular set of authoritative servers. +For example, the caching name servers on a private network using +RFC2157 addressing may be configured with stub zones for +10.in-addr.arpa +to use a set of internal name servers as the authoritative +servers for that domain.
+Matches when the updated name is a subdomain -of the name in the name field.