[Bug 251347] NFS hangs on client side when mounted from outside in Jail Tree (BROKEN NFS SERVER OR MIDDLEWARE)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251347

Alexandros Perdikomatis <alexandrosperdikomatis@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |alexandrosperdikomatis@gmai
                   |                            |l.com

--- Comment #12 from Alexandros Perdikomatis <alexandrosperdikomatis@gmail.com> ---
guys I have the same problem which I didn't have back at 11.0 kernel for both
client and server.
I never had any problems with insecure shares on both sides.
But I use full kerberos protection (krb5i) where the whole of all RPC calls are
passing through kerberos authentication.
Again, zero problems for both client and server at 11.0 kernel.
At 12.1 kernel client, I get this message again (I also had it back at version
9)
the "BROKEN NFS SERVER OR MIDDLEWARE" message refers to MIDDLEWARE for the RPC
CALL. The RPC call is the MIDDLEWARE.
Now, kerberos must issue a new key for each of the mounts. A TGT will be
produced at mount time and then all RPC calls are using KDC for key creation.
Theoretically this slows down the process, but today most hardware is armed
with CRYPTO hardware device on motherboard which is PERFECTLY used by the
FreeBSD kernel having as a result a very fast crypto process making it almost
transparent. Yes, there is a difference in speed but not that much to be
considered about.
I DO BELIEVE it is about file attributes not commonly translated.
But honestly, I have not a clear answer.
I hope I helped on what "MIDDLEWARE" is, but guys, I face the same here.
Have a nice day.
Alex

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