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Description of problem:
Adding zones to same file in slave server results in error
Version-Release number of selected component (if applicable):
9.11
How reproducible:
Always
Steps to Reproduce:
1. Add same file to different zones in slave server
2. Start bind server
3. named service doesn't start
Actual results:
writeable file 'slave/zone1.txt': already in use: name.conf:1221
writeable file 'slave/zone2.txt': already in use: name.conf:1285
writeable file 'slave/zone3.txt': already in use: name.conf:1391
...
Expected results:
named service should start normally and not die
Additional info:
https://www.mail-archive.com/bind-users@lists.isc.org/msg20553.html
In bind 9.11 and later, in-view VIEWNAME can be used to share common data. It saves the bandwidth, memory and files.
Could be used this way:
view "public" {
# ...
zone "some.example.org" {
type slave;
masters { 10.1.1.1; };
file "some.example.org.db";
};
};
view "private" {
# ...
zone "some.example.org" {
in-view "public";
};
};
It is not possible on BIND 9.9 in RHEL 7.6 and RHEL 6, unique names for each writeable zone managed by bind have to be used. In later versions, unique names or in-view have to be used. Please visit ISC article [1], explaining proper configuration of views.
Even if it is possible to configure more slaves pointing to single file, it would result in unpredictable behaviour. Two views would race together and write into journals without proper synchronization. It is wrong configuration and cannot be fixed by software change. If we have some systems exporting it this way, it has to be fixed.
No error in bind package, closing.
1. https://kb.isc.org/docs/aa-00851