Kernel 5.10 removed support for RC4-HMAC (encryption type 23) for Kerberos. See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e33d2a7b3041d7f8cd1f0a2a4ca42a5bc112b14e You were probably using this specific encryption type to authenticate. You want to make sure your keytab contains and your KDC support AES (encryption types 17 and 18).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942905 Title: nfs secure and kernel 5.11.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.11/+bug/1942905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
