Samba - Rejecting connection request

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OttoG
Posts: 13
Joined: 08 Mar 2020, 20:17

Samba - Rejecting connection request

Post by OttoG »

Hoping that the community can help. I've tried to resolve this via Terramaster support (unsuccessfully). The last communication with support was "hi, our engineers are in the meeting currently, will e-mail you the feedback as soon as we have. Thanks for your patience in advance." That was on Oct 12 and.... Nothing since.

Device = F5-221
Version = 5.0.176-00227
Samba version = 4.15.6

The problem
When trying to map network drive From any device e.g.: Windows PC, Android Phone, the connection fails due to Samba rejecting the user credentials.
The user is an admin user on the NAS and is the one that I use to successfully log into it via the web browser and connect to it for FTP or SSH access.
Apart from being unable to Samba rejecting connection credentials, the NAS is functioning correctly.

Things I have tried:
1. Restart the NAS - no change
2. Restart Samba - no change
3. Reinitialised Samba (support suggestion) using script
"cp -rf /etc.default/samba/* /etc/samba
rm /etc/tos/config/smb.json
/etc/init.d/samba restart"

Didn't help.

4. Compared the Samba config files between the offending NAS and my Back-up NAS (Note: samba fine on the back-up NAS)
I don't see any any differences and the relevant user is registered in the smbp file.
5. I've also checked that my router isn't blocking the connection requests.

Below are the most recent lines in the log.smbd file that confirms that samba is rejecting the connection request.
----------------------
[2022/10/31 00:09:20.945247, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/04 18:06:02.357426, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/04 18:06:02.368352, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/04 18:15:38.907970, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/04 18:15:38.918631, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
----------------------

I'm at a loss as to what to try next/check next. Any help from the community would be much appreciated.
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TMSupport
TerraMaster Team
Posts: 2314
Joined: 13 Dec 2019, 15:15

Re: Samba - Rejecting connection request

Post by TMSupport »

Please try to modify the IP of TNAS and reconnect.
To contact our team, please send email to following addresses, remember to replace (at) with @
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
OttoG
Posts: 13
Joined: 08 Mar 2020, 20:17

Re: Samba - Rejecting connection request

Post by OttoG »

No Change - Samba still rejecting connections

Samba Log extract:
[2022/11/06 09:24:17.915917, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:24:17.928355, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:24:17.984924, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:24:17.995789, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:24:33.359391, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:24:33.370203, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:26:11.158280, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:26:11.171638, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:29:46.407487, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:29:46.417929, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:30:25.676303, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:30:25.687169, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
[2022/11/06 09:30:42.610155, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session setup failed : Authentication failure
[2022/11/06 09:30:42.620751, 0] ../../source3/auth/pampass.c:90(smb_pam_error_handler)
smb_pam_error_handler: PAM: session close failed : Authentication failure
The attached images are error messages on both my w11 PC and Samsung Mobile. (Note both devices happily establish samba connections to my back-up NAS.
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Samsung Mobile Error.jpg
Samsung Mobile Error.jpg (10.42 KiB) Viewed 1329 times
Windows PC error.jpg
OttoG
Posts: 13
Joined: 08 Mar 2020, 20:17

Re: Samba - Rejecting connection request

Post by OttoG »

Here is an extract from the Log Centre App on the NAS
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Log Centre.jpg
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TMroy
TerraMaster Team
Posts: 2578
Joined: 10 Mar 2020, 14:04
China

Re: Samba - Rejecting connection request

Post by TMroy »

{L_BUTTON_AT}OttoG

The PAM auth has been implemented in TOS 5, PAM auth applied for many services in TOS 5, including samba. From the samba log, it seems the samba auth request was rejected by the PAM auth. This could happen if you input more than 3 three times the wrong credentials. We need to check the PAM log so that we can know what really happened there.
To contact our team, please send email to following addresses, remember to replace (at) with @:
Support team: support(at)terra-master.com (for technical support only)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
OttoG
Posts: 13
Joined: 08 Mar 2020, 20:17

Re: Samba - Rejecting connection request

Post by OttoG »

Ok, what is the path to the PAM log and the PAM log file name?
OttoG
Posts: 13
Joined: 08 Mar 2020, 20:17

Re: Samba - Rejecting connection request

Post by OttoG »

How can I give you access to the PAM log or upload a copy if you cease responding?
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TMSupport
TerraMaster Team
Posts: 2314
Joined: 13 Dec 2019, 15:15

Re: Samba - Rejecting connection request

Post by TMSupport »

Please contact our tech team to check remotely.
To contact our team, please send email to following addresses, remember to replace (at) with @
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
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