Getting SERVFAIL when trying to reach domains

Joe Abley jabley at
Fri Jan 1 13:53:37 UTC 2021

On Jan 1, 2021, at 14:15, Gil Levy via Unbound-users <unbound-users at> wrote:

>> Are you running unbound in a chroot(8)?
> I don't know how to check that.

man chroot

for a better description of what chroot does, and how the interpretation of absolute pathnames differs inside and outside the chroot namespace.

man man

if you're unfamiliar with how manual pages are organised. If you don't have manual pages installed and can't add them as a package, it should not be hard to find collections of manual pages for your particular distribution if you search for them.

grep chroot unbound.conf

seems like a reasonable place to start to find configuration options in your environment that relate to chroot. You might also refer to the unbound documentation to understand the defaults and the specific meaning of individual parameters.

Another common error is to try and write log files to places where the process generating them does not have the necessary permissions. Determine the user that unbound is running as and check the permissions in the filesystem. 

If you don't know how unix filesystem permissions work, I would invest the time in finding out. This information is easy to find.

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