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Update u_e-unbound-fwd.md

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Add additional details why public revolvers shouldn't be used
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Dmitriy Alekseev 2021-11-19 16:05:52 +02:00 committet von GitHub
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If you want or have to use an external DNS service, you can either set a forwarder in Unbound or copy an override file to define external DNS servers: If you want or have to use an external DNS service, you can either set a forwarder in Unbound or copy an override file to define external DNS servers:
!!! warning !!! warning
Please do not use a public resolver like we did in the example above. Many - if not all - blacklist lookups will fail with public resolvers. Please do not use a public resolver like we did in the example above. Many - if not all - blacklist lookups will fail with public resolvers, because blacklist server has limits on how much requests can be done from one IP and public resolvers usually reach this limits.
**Important**: Only DNSSEC validating DNS services will work. **Important**: Only DNSSEC validating DNS services will work.
## Method A, Unbound ## Method A, Unbound