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charset=UTF-8 Content-Transfer-Encoding: 7bit We are starting to add some EL9 clients into the mix on our network. Autofs mounts are working fine when initiated by a regular user, but they are failing when initiated by root. This works fine from our EL8 clients. Client: kernel 5.14.0-362.18.1.el9_3.x86_64 nfs-utils-2.5.4-20.el9.x86_64 Keytab name: FILE:/etc/krb5.keytab KVNO Principal ---- -------------------------------------------------------------------------- 1 host/client.fqdn@NWRA.COM (aes256-cts-hmac-sha1-96) 1 host/client.fqdn@NWRA.COM (aes128-cts-hmac-sha1-96) Server: kernel 4.18.0-513.18.1.el8_9.x86_64 nfs-utils-2.3.3-59.el8.x86_64 Keytab name: FILE:/etc/krb5.keytab KVNO Principal ---- -------------------------------------------------------------------------- 1 host/server.fqdn@NWRA.COM (aes256-cts-hmac-sha1-96) 1 host/server.fqdn@NWRA.COM (aes128-cts-hmac-sha1-96) 1 nfs/server.fqdn@NWRA.COM (aes256-cts-hmac-sha1-96) 1 nfs/server.fqdn@NWRA.COM (aes128-cts-hmac-sha1-96) Client rpc.gssd: rpc.gssd[778]: handle_gssd_upcall(0x7f15a0299840): 'mech=krb5 uid=0 enctypes=20,19,26,25,18,17' (nfs/clnt3) rpc.gssd[778]: start_upcall_thread(0x7f15a0299840): created thread id 0x7f159f1fe640 rpc.gssd[778]: krb5_use_machine_creds(0x7f159f1fe640): uid 0 tgtname (null) rpc.gssd[778]: No key table entry found for client$@NWRA.COM while getting keytab entry for 'client$@NWRA.COM' rpc.gssd[778]: No key table entry found for CLIENT$@NWRA.COM while getting keytab entry for 'SRV-MRY01$@NWRA.COM' rpc.gssd[778]: No key table entry found for root/client.fqdn@NWRA.COM while getting keytab entry for 'root/client.fqdn@NWRA.COM' rpc.gssd[778]: No key table entry found for nfs/client.fqdn@NWRA.COM while getting keytab entry for 'nfs/client.fqdn@NWRA.COM' rpc.gssd[778]: find_keytab_entry(0x7f159f1fe640): Success getting keytab entry for 'host/client.fqdn@NWRA.COM' rpc.gssd[778]: gssd_get_single_krb5_cred(0x7f159f1fe640): Credentials in CC 'FILE:/tmp/krb5ccmachine_NWRA.COM' are good until Fri Mar 1 10:39:34 2024 rpc.gssd[778]: gssd_get_single_krb5_cred(0x7f159f1fe640): Credentials in CC 'FILE:/tmp/krb5ccmachine_NWRA.COM' are good until Fri Mar 1 10:39:34 2024 rpc.gssd[778]: create_auth_rpc_client(0x7f159f1fe640): creating tcp client for server server.fqdn rpc.gssd[778]: create_auth_rpc_client(0x7f159f1fe640): creating context with server nfs@server.fqdn rpc.gssd[778]: WARNING: Failed to create krb5 context for user with uid 0 for server nfs@server.fqdn rpc.gssd[778]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_NWRA.COM for server server.fqdn rpc.gssd[778]: WARNING: Machine cache prematurely expired or corrupted trying to recreate cache for server server.fqdn rpc.gssd[778]: No key table entry found for client$@NWRA.COM while getting keytab entry for 'client$@NWRA.COM' rpc.gssd[778]: No key table entry found for CLIENT$@NWRA.COM while getting keytab entry for 'SRV-MRY01$@NWRA.COM' rpc.gssd[778]: No key table entry found for root/client.fqdn@NWRA.COM while getting keytab entry for 'root/client.fqdn@NWRA.COM' rpc.gssd[778]: No key table entry found for nfs/client.fqdn@NWRA.COM while getting keytab entry for 'nfs/client.fqdn@NWRA.COM' rpc.gssd[778]: find_keytab_entry(0x7f159f1fe640): Success getting keytab entry for 'host/client.fqdn@NWRA.COM' rpc.gssd[778]: gssd_get_single_krb5_cred(0x7f159f1fe640): Credentials in CC 'FILE:/tmp/krb5ccmachine_NWRA.COM' are good until Fri Mar 1 10:39:34 2024 rpc.gssd[778]: gssd_get_single_krb5_cred(0x7f159f1fe640): Credentials in CC 'FILE:/tmp/krb5ccmachine_NWRA.COM' are good until Fri Mar 1 10:39:34 2024 rpc.gssd[778]: create_auth_rpc_client(0x7f159f1fe640): creating tcp client for server server.fqdn rpc.gssd[778]: create_auth_rpc_client(0x7f159f1fe640): creating context with server nfs@server.fqdn rpc.gssd[778]: WARNING: Failed to create krb5 context for user with uid 0 for server nfs@server.fqdn rpc.gssd[778]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_NWRA.COM for server server.fqdn rpc.gssd[778]: ERROR: Failed to create machine krb5 context with any credentials cache for server server.fqdn rpc.gssd[778]: do_error_downcall(0x7f159f1fe640): uid 0 err -13 mount.nfs4: mount(2): Permission denied mount.nfs4: access denied by server while mounting I don't seem to be getting any useful information from rpc.gssd on the server. Please include me in replies. -- Orion Poplawski he/him/his - surely the least important thing about me Manager of IT Systems 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion@nwra.com Boulder, CO 80301 https://www.nwra.com/ --------------ms080606080702070409050502 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC ClEwggUVMIID/aADAgECAhEArxwEsqyM/5sAAAAAUc4Y4zANBgkqhkiG9w0BAQsFADCBtDEU MBIGA1UEChMLRW50cnVzdC5uZXQxQDA+BgNVBAsUN3d3dy5lbnRydXN0Lm5ldC9DUFNfMjA0 OCBpbmNvcnAuIGJ5IHJlZi4gKGxpbWl0cyBsaWFiLikxJTAjBgNVBAsTHChjKSAxOTk5IEVu dHJ1c3QubmV0IExpbWl0ZWQxMzAxBgNVBAMTKkVudHJ1c3QubmV0IENlcnRpZmljYXRpb24g QXV0aG9yaXR5ICgyMDQ4KTAeFw0yMDA3MjkxNTQ4MzBaFw0yOTA2MjkxNjE4MzBaMIGlMQsw 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