[Samba] issue joining domain and now logging in

Diego Franchini diego.tartol at gmail.com
Wed Oct 12 18:21:59 UTC 2022


this is an extract from my post on superuser and serverfault. I've been
suggested to seek help here too.

I'm constantly trying new solutions, literally anything I can find online,
but to this day nothing has completely fixed it.


*DISCLAMER:*
I'm still trying to fully learn and understand how to properly maintain a
samba domain controller.

*The Problem:*

I had a working samba installation with AD controlle but now, just a month
after my last computer join, it won't work anymore. On Windows it says
"unknown user or password" but I've checked them to be correct.

I tried setting the log level to 3 in "smb.conf" and while trying to join a
computer this gets logged:

[2022/10/04 12:11:58.018256,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ admuser at example.net from ipv4:172.27.2.58:50124 for
krbtgt/example.net at example.net
[2022/10/04 12:11:58.039839,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 128
[2022/10/04 12:11:58.040080,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- admuser at example.net
[2022/10/04 12:11:58.040191,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- admuser at example.net
[2022/10/04 12:11:58.040341,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- admuser at example.net
[2022/10/04 12:11:58.043598,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/04 12:11:58.054880,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ admuser at example.net from ipv4:172.27.2.58:50125 for
krbtgt/example.net at example.net
[2022/10/04 12:11:58.076255,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 128
[2022/10/04 12:11:58.076483,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- admuser at example.net
[2022/10/04 12:11:58.076587,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- admuser at example.net
[2022/10/04 12:11:58.077527,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- admuser at example.net
using aes256-cts-hmac-sha1-96
[2022/10/04 12:11:58.077840,  3]
../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user
[(null)]\[admuser at example.net] at [Tue, 04 Oct 2022 12:11:58.077747
CEST] with [aes256-cts-hmac-sha1-96] status [NT_STATUS_OK] workstation
[(null)] remote host [ipv4:172.27.2.58:50125] became
[EXAMPLE]\[admuser] [S-1-5-21-578677625-3635414378-1858279571-1104].
local host [NULL]
  {"timestamp": "2022-10-04T12:11:58.086113+0200", "type":
"Authentication", "Authentication": {"version": {"major": 1, "minor":
2}, "eventId": 4624, "logonId": "c61be2b0d84a3e12", "logonType": 3,
"status": "NT_STATUS_OK", "localAddress": null, "remoteAddress":
"ipv4:172.27.2.58:50125", "serviceDescription": "Kerberos KDC",
"authDescription": "ENC-TS Pre-authentication", "clientDomain": null,
"clientAccount": "admuser at example.net", "workstation": null,
"becameAccount": "admuser", "becameDomain": "EXAMPLE", "becameSid":
"S-1-5-21-578677625-3635414378-1858279571-1104", "mappedAccount":
"admuser", "mappedDomain": "EXAMPLE", "netlogonComputer": null,
"netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000",
"netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null,
"passwordType": "aes256-cts-hmac-sha1-96", "duration": 31663}}
[2022/10/04 12:11:58.160727,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2022-10-04T12:11:58 starttime: unset
endtime: 2022-10-04T22:11:58 renew till: 2022-10-11T12:11:58
[2022/10/04 12:11:58.161033,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: aes256-cts-hmac-sha1-96,
aes128-cts-hmac-sha1-96, arcfour-hmac-md5, 24, -135, 3, using
aes256-cts-hmac-sha1-96/aes256-cts-hmac-sha1-96
[2022/10/04 12:11:58.161206,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, canonicalize, renewable, forwardable
[2022/10/04 12:11:58.165799,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/04 12:11:58.178036,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed to verify authenticator checksum: Decrypt integrity
check failed for checksum type rsa-md5, key type
aes256-cts-hmac-sha1-96
[2022/10/04 12:11:58.178282,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed parsing TGS-REQ from ipv4:172.27.2.58:50126

As you can see, the authentication here is reported to be successful. So
far it's the same issue as here
<https://www.claudiokuenzler.com/blog/1065/windows-client-unable-join-domain-samba-4-domain-controller-logon-failure-unknown-user-name>,
so I tried the following commands:

 root at SMBDC1:~# host -t SRV _ldap._tcp.example.net
    _ldap._tcp.example.net has SRV record 0 100 389 smbdc1.example.net.
 root at SMBDC1:~# host -t SRV _kerebros._udp.example.net
    Host _kerebros._udp.example.net not found: 3(NXDOMAIN)
 root at SMBDC1:~# host -t A focal.exapmle.net
    Host focal.example.net not found: 3(NXDOMAIN)

 root at SMBDC1:~# dig -t SRV _kerebros._udp.frankini.net

    ; <<>> DiG 9.16.1-Ubuntu <<>> -t SRV _kerebros._udp.frankini.net
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 138
    ;; flags: qr aa rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

    ;; QUESTION SECTION:
    ;_kerebros._udp.frankini.net.   IN      SRV

    ;; AUTHORITY SECTION:
    frankini.net.           3600    IN      SOA
    smbdc1.frankini.net. hostmaster.        frankini.net. 55 900 600 86400 3600

    ;; Query time: 3 msec
    ;; SERVER: 172.27.1.1#53(172.27.1.1)
    ;; WHEN: Fri Oct 07 21:44:12 CEST 2022
    ;; MSG SIZE  rcvd: 99

This originally worked but now i get "*Host not found*"... what could have
changed?

*My setup*

router:     172.27.0.1
smbdc:      172.27.1.1
dns:        172.27.1.2

dhcp range: 172.27.2.2 - 172.27.2.254

Samba runs on an Orange Pi Zero and I connect to it through Putty and FileZilla

I route communication between the xxx.xxx.0.xxx, xxx.xxx.1.xxx and
xxx.xxx.2.xxx ip ranges and set the network mask to be 255.255.0.0

*System*

 OS:    Armbian 22.05.3 Focal with Linux 5.15.48-sunxi
 SAMBA: Samba version 4.13.17-Ubuntu

*smb.conf*

# Global parameters
[global]
    dns forwarder = 172.27.1.2
    netbios name = SMBDC1
    realm = EXAMPLE.NET <http://example.net/>
    server role = active directory domain controller
    workgroup = EXAMPLE
    idmap_ldb:use rfc2307 = yes
    host msdfs = yes
    log level = 3

[sysvol]
    path = /var/lib/samba/sysvol
    read only = No

[netlogon]
    path = /var/lib/samba/sysvol/example.net/scripts
    read only = No

*UPDATE:*

I made an image of the disk as a backup, then did a bunch of tests with no
success. so I finally reverted the image to the disk as it was, and now
suddenly these commands work:

root at SMBDC1:~# host -t SRV _ldap._tcp.example.net
    _ldap._tcp.example.net has SRV record 0 100 389 smbdc1.example.net.
root at SMBDC1:~# host -t SRV _kerberos._udp.example.net
    _kerberos._udp.example.net has SRV record 0 100 88 smbdc1.example.net.
root at SMBDC1:~# host -t A SMBDC1.example.net <http://smbdc1.example.net/>
    SMBDC1.example.net <http://smbdc1.example.net/> has address 172.27.1.4

So the situation now is as follows:

I added the computer "*TESTING-W11*" to the domain with my domain admin
user, not with 'administrator'. It works only if i do "user at example.net"
and not "user", which used to work before. and if someone asks, yes I also
tried with administrator and it only work as "administrator at example.com"

after the computer rebooted I tried to login but it says wrong user or
password.

this is the log file of login attempt:

[2022/10/12 19:39:25.980185,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE from ipv4:172.27.2.26:50574 for
krbtgt/EXAMPLE at EXAMPLE
[2022/10/12 19:39:26.008882,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 128
[2022/10/12 19:39:26.009229,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE
[2022/10/12 19:39:26.009433,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE
[2022/10/12 19:39:26.009709,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- user2 at EXAMPLE
[2022/10/12 19:39:26.013190,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.024021,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE from ipv4:172.27.2.26:50575 for
krbtgt/EXAMPLE at EXAMPLE
[2022/10/12 19:39:26.051743,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 128
[2022/10/12 19:39:26.052093,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE
[2022/10/12 19:39:26.052302,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE
[2022/10/12 19:39:26.052948,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- user2 at EXAMPLE using
aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.053349,  3]
../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user [(null)]\
[user2 at EXAMPLE] at [Wed, 12 Oct 2022 19:39:26.053205 CEST] with
[aes256-cts-hmac-sha1-96] status [NT_STATUS_OK] workstation [(null)]
remote host [ipv4:172.27.2.26:50575] became [EXAMPLE]\[user2]
[S-1-5-21-578677625-3635414378-1858279571-1105]. local host [NULL]
  {"timestamp": "2022-10-12T19:39:26.053767+0200", "type":
"Authentication", "Authentication": {"version": {"major": 1, "minor":
2}, "eventId": 4624, "logonId": "d3433331ec6a5bf7", "logonType": 3,
"status": "NT_STATUS_OK", "localAddress": null, "remoteAddress":
"ipv4:172.27.2.26:50575", "serviceDescription": "Kerberos KDC",
"authDescription": "ENC-TS Pre-authentication", "clientDomain": null,
"clientAccount": "user2 at EXAMPLE", "workstation": null,
"becameAccount": "user2", "becameDomain": "EXAMPLE", "becameSid":
"S-1-5-21-578677625-3635414378-1858279571-1105", "mappedAccount":
"user2", "mappedDomain": "EXAMPLE", "netlogonComputer": null,
"netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000",
"netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null,
"passwordType": "aes256-cts-hmac-sha1-96", "duration": 30203}}
[2022/10/12 19:39:26.089947,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2022-10-12T19:39:26 starttime: unset
endtime: 2022-10-13T05:39:26 renew till: 2022-10-19T19:39:26
[2022/10/12 19:39:26.090338,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: aes256-cts-hmac-sha1-96,
aes128-cts-hmac-sha1-96, arcfour-hmac-md5, 24, -135, 3, using
aes256-cts-hmac-sha1-96/aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.090474,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, canonicalize, renewable, forwardable
[2022/10/12 19:39:26.097520,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.106943,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed to verify authenticator checksum: Decrypt integrity
check failed for checksum type rsa-md5, key type
aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.107170,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed parsing TGS-REQ from ipv4:172.27.2.26:50576
[2022/10/12 19:39:26.110456,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.114239,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50577 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.127198,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 128
[2022/10/12 19:39:26.127410,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.127580,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.127768,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.130816,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.140450,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50578 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.152897,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 128
[2022/10/12 19:39:26.153102,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.153210,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.153583,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- user2 at EXAMPLE.NET
using aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.153816,  3]
../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user
[(null)]\[user2 at EXAMPLE.NET] at [Wed, 12 Oct 2022 19:39:26.153732
CEST] with [aes256-cts-hmac-sha1-96] status [NT_STATUS_OK] workstation
[(null)] remote host [ipv4:172.27.2.26:50578] became [EXAMPLE]\[user2]
[S-1-5-21-578677625-3635414378-1858279571-1105]. local host [NULL]
  {"timestamp": "2022-10-12T19:39:26.154039+0200", "type":
"Authentication", "Authentication": {"version": {"major": 1, "minor":
2}, "eventId": 4624, "logonId": "869dfe1fc68f82a8", "logonType": 3,
"status": "NT_STATUS_OK", "localAddress": null, "remoteAddress":
"ipv4:172.27.2.26:50578", "serviceDescription": "Kerberos KDC",
"authDescription": "ENC-TS Pre-authentication", "clientDomain": null,
"clientAccount": "user2 at EXAMPLE.NET", "workstation": null,
"becameAccount": "user2", "becameDomain": "EXAMPLE", "becameSid":
"S-1-5-21-578677625-3635414378-1858279571-1105", "mappedAccount":
"user2", "mappedDomain": "EXAMPLE", "netlogonComputer": null,
"netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000",
"netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null,
"passwordType": "aes256-cts-hmac-sha1-96", "duration": 13913}}
[2022/10/12 19:39:26.182189,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2022-10-12T19:39:26 starttime: unset
endtime: 2022-10-13T05:39:26 renew till: 2022-10-19T19:39:26
[2022/10/12 19:39:26.182483,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: aes256-cts-hmac-sha1-96,
aes128-cts-hmac-sha1-96, arcfour-hmac-md5, 24, -135, 3, using
aes256-cts-hmac-sha1-96/aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.182612,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, canonicalize, renewable, forwardable
[2022/10/12 19:39:26.187831,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.197162,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed to verify authenticator checksum: Decrypt integrity
check failed for checksum type rsa-md5, key type
aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.197385,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed parsing TGS-REQ from ipv4:172.27.2.26:50579
[2022/10/12 19:39:26.202216,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.206268,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50580 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.218896,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 128
[2022/10/12 19:39:26.219112,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.219220,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.219367,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.226212,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.236585,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50581 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.249060,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 128
[2022/10/12 19:39:26.249272,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.249377,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.249842,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- user2 at EXAMPLE.NET
using aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.250084,  3]
../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user
[(null)]\[user2 at EXAMPLE.NET] at [Wed, 12 Oct 2022 19:39:26.250002
CEST] with [aes256-cts-hmac-sha1-96] status [NT_STATUS_OK] workstation
[(null)] remote host [ipv4:172.27.2.26:50581] became [EXAMPLE]\[user2]
[S-1-5-21-578677625-3635414378-1858279571-1105]. local host [NULL]
  {"timestamp": "2022-10-12T19:39:26.250309+0200", "type":
"Authentication", "Authentication": {"version": {"major": 1, "minor":
2}, "eventId": 4624, "logonId": "b111aea5f91526ac", "logonType": 3,
"status": "NT_STATUS_OK", "localAddress": null, "remoteAddress":
"ipv4:172.27.2.26:50581", "serviceDescription": "Kerberos KDC",
"authDescription": "ENC-TS Pre-authentication", "clientDomain": null,
"clientAccount": "user2 at EXAMPLE.NET", "workstation": null,
"becameAccount": "user2", "becameDomain": "EXAMPLE", "becameSid":
"S-1-5-21-578677625-3635414378-1858279571-1105", "mappedAccount":
"user2", "mappedDomain": "EXAMPLE", "netlogonComputer": null,
"netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000",
"netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null,
"passwordType": "aes256-cts-hmac-sha1-96", "duration": 13999}}
[2022/10/12 19:39:26.278425,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2022-10-12T19:39:26 starttime: unset
endtime: 2022-10-13T05:39:26 renew till: 2022-10-19T19:39:26
[2022/10/12 19:39:26.278721,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: aes256-cts-hmac-sha1-96,
aes128-cts-hmac-sha1-96, arcfour-hmac-md5, 24, -135, 3, using
aes256-cts-hmac-sha1-96/aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.278850,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, canonicalize, renewable, forwardable
[2022/10/12 19:39:26.284069,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.293333,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed to verify authenticator checksum: Decrypt integrity
check failed for checksum type rsa-md5, key type
aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.293567,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed parsing TGS-REQ from ipv4:172.27.2.26:50582
[2022/10/12 19:39:26.297119,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.301280,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50583 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.314043,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 128
[2022/10/12 19:39:26.314253,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.314361,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.314507,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.317995,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.328064,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ user2 at EXAMPLE.NET from ipv4:172.27.2.26:50584 for
krbtgt/EXAMPLE.NET at EXAMPLE.NET
[2022/10/12 19:39:26.340620,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 128
[2022/10/12 19:39:26.340832,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.340934,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- user2 at EXAMPLE.NET
[2022/10/12 19:39:26.341304,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- user2 at EXAMPLE.NET
using aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.341534,  3]
../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user
[(null)]\[user2 at EXAMPLE.NET] at [Wed, 12 Oct 2022 19:39:26.341453
CEST] with [aes256-cts-hmac-sha1-96] status [NT_STATUS_OK] workstation
[(null)] remote host [ipv4:172.27.2.26:50584] became [EXAMPLE]\[user2]
[S-1-5-21-578677625-3635414378-1858279571-1105]. local host [NULL]
  {"timestamp": "2022-10-12T19:39:26.341761+0200", "type":
"Authentication", "Authentication": {"version": {"major": 1, "minor":
2}, "eventId": 4624, "logonId": "4baa7d35daccf446", "logonType": 3,
"status": "NT_STATUS_OK", "localAddress": null, "remoteAddress":
"ipv4:172.27.2.26:50584", "serviceDescription": "Kerberos KDC",
"authDescription": "ENC-TS Pre-authentication", "clientDomain": null,
"clientAccount": "user2 at EXAMPLE.NET", "workstation": null,
"becameAccount": "user2", "becameDomain": "EXAMPLE", "becameSid":
"S-1-5-21-578677625-3635414378-1858279571-1105", "mappedAccount":
"user2", "mappedDomain": "EXAMPLE", "netlogonComputer": null,
"netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000",
"netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null,
"passwordType": "aes256-cts-hmac-sha1-96", "duration": 13987}}
[2022/10/12 19:39:26.369985,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2022-10-12T19:39:26 starttime: unset
endtime: 2022-10-13T05:39:26 renew till: 2022-10-19T19:39:26
[2022/10/12 19:39:26.370274,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: aes256-cts-hmac-sha1-96,
aes128-cts-hmac-sha1-96, arcfour-hmac-md5, 24, -135, 3, using
aes256-cts-hmac-sha1-96/aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.370405,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, canonicalize, renewable, forwardable
[2022/10/12 19:39:26.375775,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'
[2022/10/12 19:39:26.385121,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed to verify authenticator checksum: Decrypt integrity
check failed for checksum type rsa-md5, key type
aes256-cts-hmac-sha1-96
[2022/10/12 19:39:26.385343,  3]
../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed parsing TGS-REQ from ipv4:172.27.2.26:50585
[2022/10/12 19:39:26.388686,  3]
../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection -
'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'

is there something wrong in the log file?


Thank you,

Diego


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