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Questions tagged [server-message-block]

Server Message Block is a network file sharing protocol created by Microsoft. This is the protocol used for file and printer sharing on Windows networks.

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Can't create Windows 2012 Failover Cluster Share Resource for mounted folder

Here is a more detailed breakdown of our issue: We have two disk clusters in a Windows Failover Cluster.1. One of them is from a folder that is mounted on a Windows disk.1. Disk 1 has a file share ...
fedayn's user avatar
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Exchanging data with Windows XP workstations in a corporate network

We have Windows XP workstations that are used to exchange data with other computers on the network. USB media isn't an option. Equipment on both ends of the link expect a Windows share (SMB). For ...
jmr's user avatar
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1 answer
456 views

Properly mounting a Samba share in Ubuntu/Linux

I am working in a company that uses a Windows AD. We have a TrueNAS setup with some SMB shares that work well under Windows, but I don't really understand how to properly set them up under Ubuntu. So ...
n00by0815's user avatar
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1 answer
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How to implement virtual UNC mapping in a Windows user session?

I need to implement virtual SMB UNC mapping in a Windows user session. Similar to what "NET USE H: \\realhost\share" command does, but redirect "\\virtualhost\share" to "\\...
tchoha's user avatar
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1 answer
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Azure Files performance for a remote IPSEC VPN connected site

I have an Azure Files premium account which I setup SMB multichannel. I setup a test folder with 50,000 very small files. If I test with a single file at a remote IPSEC connected site I get around 5-...
WConsulting's user avatar
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236 views

Windows Server 2022 - Port 445/TCP Not Accessible from other machines

I have two physical copies of Windows Server 2022 running, both machines have firewalls completely disabled. I have enabled file and folder sharing on both machines on the domain, private and public ...
Richie086's user avatar
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1 answer
354 views

What am I doing wrong? access-based enumeration not working with share-subfolders

Create a share D:\Shares\DATA_AUTH_TEST. Make sure ABE is enabled, DOMAIN USERS is granted read permission. Create a folder in D:\Shares\DATA_AUTH_TEST\USER1, Disable inheritance, grant full control ...
tpcolson's user avatar
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Server not listening on port 445

I have a Windows Server 2016 server that is not listening on port 445. The Server service is running and the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters registry entry ...
F. Gil's user avatar
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2 votes
1 answer
202 views

How do I determine the current leasing mode of an SMB share?

I am preparing to migrate files from a Windows Server 2016 server to a new Windows Server 2022 server. There is a complicated set of NTFS and Share permissions that I need to replicate. I have found ...
M Herbener's user avatar
1 vote
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683 views

Unable to access SMB share with DNS Cache service disabled from Windows Server 2022 but it works on Server 2019

I have a requirement to disable the Windows DNS Cache on a new Windows Server 2022 RDS VM. Trying to access a SMB share hosted on a Windows Server 2022 file server, all my servers are joined to a AD ...
tezx's user avatar
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Logging Source IP of SMB Login Attempts

We have an TrueNAS System running TrueNAS-13.0-U5.3. It is bound to Active Directory and used solely for SMB file sharing. Recently there have been periodic event where SMB service quality is degraded ...
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Is there a web frontend for cifs/smb like Synology Filestation?

I´m looking for a Web-Frontend to browse, download and upload files exported from another Server via SMB. It has to offer ldap/AD-login for Users and honor the permissions from the Share. I know most ...
Jochen's user avatar
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0 answers
94 views

TCP capture show different user when attempting SMB connection

I'm attempting to map a SMB share on an Isilon server in windows 10. I have Ubuntu and Windows computers on the same network, can mount the SMB fine on the Ubuntu machine. But when trying windows ...
Geordie's user avatar
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Small read size by Windows SMB client

I am setting up a Linux server for high resolution online video editing. When I access the SMB share from a Windows 11 client, Wireshark analysis shows that the SMB Read requests are always a maximum ...
swami's user avatar
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net view (and WNetEnumResource) is not finding anything but the local computer after changing motherboard?

I was going to post in StackOverflow but it's more of a network issue than programming issue as I've used WNetEnumResource() for years with no problem. I upgraded my motherboard of my Windows 10x64 ...
user3161924's user avatar
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350 views

Cannot connect to Ubuntu Samba from Windows

I setup Samba on a Ubuntu 22.02 server. I cannot access the shared with Windows but I can with Linux. Ports 139 and 445 are open and listening on loopback and lan interface. I even made the share ...
LifeWithLucifer's user avatar
1 vote
2 answers
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Cannot connect to Samba share via VPN

I have a Wireguard site-to-site VPN that connects successfully. I can ping the remote Samba server using it's IP address 192.168.30.1 I cannot access a share over the VPN tunnel using its IP address \...
Dennis's user avatar
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Trouble debugging user access to Windows SMB shares

I am having trouble with 2 PC of my domain, both on Windows 10 1909, which I'll call "01" and "02", using a domain service account (called "s_automate" to connect to a ...
Astra's user avatar
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1 vote
1 answer
1k views

Samba server - single user connection limit

Is there a limitation for samba server to allow multiple connection's from single user? (Multiple PC's connecting to same samba server with same account) User was created through smbpasswd -a [...
Thomas Brown's user avatar
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1 answer
281 views

NFS re-export between VPN-connected servers

I have two Linux NFS servers on two locations (two different networks), each providing at least one NFS share. Those servers are connected through VPN and each other NFS is mounted to folder on each ...
hemmond's user avatar
-1 votes
1 answer
4k views

Difference between SMB and NAS

I am getting aboard my family businesses and every thing is made with Microsoft. I see that 90% of the processes can be done with free software, and in this case, file sharing. My father always ...
ahwelp's user avatar
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1 answer
570 views

Mount smb remote storage on debian with local disk caching using FS-Cache for CIFS

I am trying to connect a smb remote storage to my debian server and use the available space on the local disk as a cache using FS-Cache for CIFS. I have already tried the following code but it doesn't ...
dami3n's user avatar
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1 vote
1 answer
630 views

SMB MultiChannel pinning a few CPU cores and not hitting NIC saturation

I have two servers with twin RDMA enabled 25GbE NICs installed. For the time being, during testing, they are direct connected... no switch between them. If I just make a single SFP28 connection ...
Craig's user avatar
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1 vote
1 answer
725 views

Why cannot I map an DSF/SMB share using New-SmbGlobalMapping?

I've got a DFS folder: \\my.domain\Storage$ I'd like to map it to a particular Windows Server Core machine using the New-SmbGlobalMapping PowerShell command using specific credentials. Alas, when I ...
MBender's user avatar
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0 answers
72 views

Network drives autoplay

I am having some trouble figuring out what some SMB requests to an AutoRun.inf file are. My situation is this, i have a fileserver Windows Server 2016, and all my workstations mount a shared drive ...
Teo B's user avatar
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2 votes
0 answers
4k views

Unable to mount SMB shared : mount error(95): Operation not supported

I have created a shared folder in QNAP TS-433. I can mount the SMB share on a Windows client. I am unable to mount the SMB share on Linux (Centos 6.8). mount -t cifs -o ver=3.0,user=test //172.17.134....
supmethods's user avatar
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3k views

Use smb share also as docker volume

I've one Debian 11 Server which has multiple smb-shares under /samba/. Now I'd like to run multiple instances of a file synchronisation software called Syncthing inside docker containers on this ...
vrudy_0o0's user avatar
0 votes
1 answer
600 views

Does an SMB share server "cache" permissions?

I'm trying to set up a somewhat complex access scenario for a shared folder (domain-joined Windows Server 2022) and I'm having some really weird things happen. I've created 3 groups in AD: Top Test ...
MBender's user avatar
  • 379
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0 answers
1k views

KRB5KRB_AP_ERR_MODIFIED trying to use SPN credentials

I'm trying to set up a Windows 2019 system as an SMB server to work with third-party software on an external, non-Windows system that uses Kerberos to authenticate to the SMB server. This SMB server ...
Steve Talmage's user avatar
1 vote
1 answer
893 views

CIFS Mount Share: Permissions on one File Seemingly Corrupted

I have a multi VM Windows (Server 2019) solution, hosted in a datacentre, with services which require a Redis cache. Due to security concerns, the Windows fork of Redis is not allowable. Therefore, I ...
Luke's user avatar
  • 577
1 vote
1 answer
1k views

Logging samba share network activity

For the purpose of this question, I have a server called server1 hosting the samba network share share1 on my local network. User1 can access this share with read and write permissions. I'm looking to ...
OJRICKETTS's user avatar
1 vote
1 answer
302 views

NFS + SMB sharing file locks

Is there any way to share file locks between samba(smbd) and nfs(-kernel-server)? I assume that this is hard to impossible on most linux distributions. The regular smb/nfs implementations have no way ...
Frank Vermeulen's user avatar
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0 answers
1k views

Hyper-V Failover Cluster without domain, possible to use an SMB share on the same cluster?

We are building a Windows Failover Cluster that will not be on a domain (a necessity), as outlined here. It will ultimately be just a Hyper-V cluster, hosting three Windows Server guests. The basic ...
Tie-Guy's user avatar
0 votes
0 answers
263 views

What does it mean if I don't receive a SMB Negotiate Protocol Response from server?

What does it mean to not get an SMB Negotiate Protocol Response from server? Unable to mount fileshare drive (a third-party fileshare outside Azure). The architecture is similar to this one: https://...
Mel J's user avatar
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0 votes
0 answers
1k views

SMB share/Hyper-V - error 551 and error 1009

Setup: Hypervisors: HV1 (Server 2019) HV2 (Server 2019) Storage: Storage0 (Server 2019) Storage1 (Server 2019) From the above -- you can see i have two file and two HV servers. I'm trying to use ...
slay3r9903's user avatar
0 votes
1 answer
495 views

Slow rsync from Linux to Windows

I backup files using rsync from RHEL Linux to Windows 10 Pro using SMB/CIFS share. It works fine except it is much slower than Linux to Linux. Both computers are fairly modern Dell OptiPlex, having 6-...
Vinod Gupta's user avatar
2 votes
1 answer
1k views

Why does connecting to SMB share also use wsman

When I connect to a file share using \servername\share in Windows explorer (windows 10 to a windows server share), I notice that there are also connections from my host to the destination server over ...
dcom-launch's user avatar
3 votes
0 answers
291 views

Options to improve container volume mount's SMB metadata operations performance

Question Are there any ways to improve metadata operation performance between a Linux based container running under Azure App Service and a mounted volume hosted in Azure Files? Context I recently ...
JohnLBevan's user avatar
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0 votes
1 answer
777 views

Temporarily prevent SMB file from being locked in-use - Windows

I have a file \\server\share\myApp\app.exe that a handful of people run directly from the share. I need to update that file occasionally, but it is usually locked due to the open SMB sessions. My ...
Cpt.Whale's user avatar
  • 412
0 votes
1 answer
101 views

How to install UWP apps on a Truenas SMB share

Overview: Is it possible to install a UWP app on truenas via a smb network share? I know the whole encryption thing and acl will cause issues, but is there either a way to spoof encryption/acl? ...
user avatar
3 votes
1 answer
3k views

Why does a MS GPO option break SMB shares that use a hosts file for the machine name?

We've set "Microsoft network server: Server SPN target name validation level" to "Required from client" on our test GPO. Our test systems have some custom machine aliases in their ...
dlanod's user avatar
  • 133
0 votes
0 answers
835 views

Samba file lock prevents media unmount

I have a small server with a samba share that sometimes I use to share removable disks connected in the hot swap bays. After mounting a disk and accessing it, I try to unmount it, but umount refuses (...
Alessandro Campolo's user avatar
1 vote
2 answers
5k views

SMB connection to server fails with "The Network path was not found", SMB attempts to connect over HTTP

Issues with one user unable to connect to any SMB shares on any Windows Servers. The user and shares are in different domains, that have a trust between the domains. The user has permission to the ...
Plasma's user avatar
  • 21
0 votes
0 answers
207 views

Video post production storage server - slow transfer speeds of small-ish files (1-2M) over SMB to ZFS pool. (CinemaDNG format)

I'm a Camera OP / Video editor, but I manage our post infrastructure for our team of 2 people at small production company. We're having an issue with slow transfer speeds over the network from one of ...
Bence Szentiványi's user avatar
1 vote
1 answer
863 views

How to use SMB Multichannel over VPN?

According to this article SMB Multichannel can provide the following capability: Increased Throughput - The file server can simultaneously transmit additional data by using multiple connections for ...
Appleoddity's user avatar
  • 3,870
0 votes
1 answer
555 views

How can I set up Unix permission sync properly with Samba SMB 3.1.1 [closed]

I currently have a NAS for our household (called Waitress) which is running Debian 11 with Samba using SMB 3.1.1. It is connected to a 1TB USB-SS HDD. I also have an Ubuntu machine which is my own ...
Lennon McLean's user avatar
0 votes
0 answers
907 views

Backup (SeBackupPrivilege) and restore privilege(SerestorePrivilege).for domain user

How do I verify the if the domain user has backup (SeBackupPrivilege) and restore privilege(SerestorePrivilege)? I tried added the domain user to backup operators group. But Whoami /priv command ...
suresh's user avatar
  • 241
1 vote
1 answer
1k views

Is UID required when providing a GID in an fstab entry for an ntfs drive?

I have an Ubuntu Server 20.04 installed on a Raspberry Pi 4. I am trying to mount a hard drive that should be accessible by two different samba users (user1, uid=1001 and user2, uid=1002). I created a ...
Prateek Verma's user avatar
4 votes
1 answer
25k views

No write permission on mounted CIFS drive

I'm on a Linux machine trying to mount an SMB share inside a big network via my Active Directory username: mount -t cifs -o username=myuser,domain=mydomain //server/share /mount/path After the ...
R-obert's user avatar
  • 141
1 vote
0 answers
904 views

NetFT - Validation Failed - SMB Network Path Not Found

Two new Windows Server 2019 Datacenter edition servers setup in a Failover Cluster, cluster validation is failing at 'Validate CSV Settings' as follows: Validating Server Message Block (SMB) share ...
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