Unable to read file using SMB option with Service Account

[HemanthGokula]

Hi,

I am trying to read files from a SMB File Share using a Service Account, This service account has access to the File Share and I can prove it by mapping the file share using same Service Account Logins.

I have tried the following options for User Name

DOMAIN/USERNAME
USERNAME/DOMAIN
USERNAME@DOMAIN
USERNAME

I get the below error

[2025-01-23 14:53:11.027] ERROR (com.mirth.connect.connectors.file.FileReceiver:27): Error polling in channel: 875a32b4-dffa-427e-9320-605f73ae0a44
com.mirth.connect.connectors.file.FileConnectorException: Error listing files in dir [/network-location-folder] for pattern [sample*]
at com.mirth.connect.connectors.file.filesystems.SmbFileConnection.listFiles(SmbFileConnection.java:223)
at com.mirth.connect.connectors.file.FileReceiver.listFiles(FileReceiver.java:647)
at com.mirth.connect.connectors.file.FileReceiver.poll(FileReceiver.java:239)
at com.mirth.connect.donkey.server.channel.PollConnectorJob.execute(PollConnectorJob.java:49)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)Caused by: jcifs.smb.SmbAuthException: Logon failure: unknown user name or bad password.
at jcifs.smb.SmbTransportImpl.checkStatus2(SmbTransportImpl.java:1464)
at jcifs.smb.SmbTransportImpl.checkStatus(SmbTransportImpl.java:1607)
at jcifs.smb.SmbTransportImpl.sendrecv(SmbTransportImpl.java:1014)
at jcifs.smb.SmbTransportImpl.send(SmbTransportImpl.java:1578)
at jcifs.smb.SmbSessionImpl.sessionSetupSMB2(SmbSessionImpl.java:557)
at jcifs.smb.SmbSessionImpl.sessionSetup(SmbSessionImpl.java:491)
at jcifs.smb.SmbSessionImpl.send(SmbSessionImpl.java:369)
at jcifs.smb.SmbSessionImpl.send(SmbSessionImpl.java:347)
at jcifs.smb.SmbTreeImpl.treeConnect(SmbTreeImpl.java:611)
at jcifs.smb.SmbTreeConnection.connectTree(SmbTreeConnection.java:614)
at jcifs.smb.SmbTreeConnection.connectHost(SmbTreeConnection.java:568)
at jcifs.smb.SmbTreeConnection.connectHost(SmbTreeConnection.java:489)
at jcifs.smb.SmbTreeConnection.connect(SmbTreeConnection.java:465)
at jcifs.smb.SmbTreeConnection.connectWrapException(SmbTreeConnection.java:426)
at jcifs.smb.SmbFile.ensureTreeConnected(SmbFile.java:559)
at jcifs.smb.SmbEnumerationUtil.doEnum(SmbEnumerationUtil.java:221)
at jcifs.smb.SmbEnumerationUtil.listFiles(SmbEnumerationUtil.java:279)
at jcifs.smb.SmbFile.listFiles(SmbFile.java:1270)
at com.mirth.connect.connectors.file.filesystems.SmbFileConnection.listFiles(SmbFileConnection.java:207)
... 5 more

Below is a screenshot when I do the test read

Has anyone tried to read files from SMB file shares using a Service Account?
What was the format for Username?

Any help is greatly appreciated.

Thanks

[ab-mg-23]

Formats that should work for a domain account are:

DOMAIN\USERNAME
DOMAIN/USERNAME
DOMAIN@USERNAME
DOMAIN:USERNAME
DOMAIN;USERNAME

Is the SMB share in a domain that has completely disabled all NTLM authentication?

[HemanthGokula]

The SMB is actually a S3 configured as a File Gate way and exposed as SMB that can be mounted on any Windows machine as a network drive and behaves as a network drive, we have Service Account that us to read files folders and the Service Accounts have permissions to Read and Write.

I am able to map the SMB as a Network Drive on my VM where Mirth is running using the same Service Account Credentials.

[ab-mg-23]

I'm pretty sure the issue is Mirth using NTLM authentication and the server wants Kerberos only. Also check the security level on the gateway as that could cause additional problems. The library Mirth uses for SMB, jcifs-ng, doesn't have full support for all of SMB3.

Mirth can read from S3 buckets so that might be your least painful way forward. Otherwise you can add code to a pre-deploy script for your channel to make the network drive mapping and then just use a local file reader to read off the mapped drive.