Questions tagged [smb]

Abbreviation for "Server Message Block"; an application-layer network protocol for sharing files and printers, popular in Windows environments

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47 views

Convert SMBv1 to newer SMB without modifying the server

A friend who is a medical doctor has a medical imaging device that exports small jpg files by providing a Samba share. It runs a heavily modified version of Windows 2000 and only supports SMBv1. SMBv1 ...
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1answer
61 views

Is it safe to use SMBv1 client/server after patching it, on Windows 10?

As you may know, after numerous ransomware attacks, Microsoft decided to disable SMBv1 by default on Windows OS's. However despite releasing a patch (MS17-010) to address those attacks, it seems that ...
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98 views

No access to smb shares on NAS after win10 local user certificate expires

So Today, I attempted to access my NAS over SMB (\\files) on my network workgroup. The window hung for a moment, and a dialog I've never seen before when connecting to a share, with the title "...
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20 views

icacls doesn't remove User permissions

I have connected to a SMB Share and navigated with CMD to a folder. When I want to delete a User called "pi" or better said it's access to the file with icacls the command line tells me it ...
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Creating permissions for a serverless Azure File Share?

I have not yet created the file share but have read different things online how people can give permissions on such a FS (be it via shared access signatures, or syncing AAD NTFS Permissions). However ...
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1answer
35 views

How to limit inbound SMB bandwidth?

Prologue: This is not a duplicate question. There are many questions and answers about that subject, but I haven't found a single one which deals with inbound traffic and provides a reasonable answer. ...
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45 views

Cannot connect to any devices on local network

When I try to ping my laptop it shows "Reply from my PC private IP : Destination host unreachable", however there's no problem when I pinging my router. Previously I was able to access my ...
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1answer
51 views

Single share across multiple locations Windows Server 2019

I would like to create a share that appears to the user as a single share, however it is actually a combination of two separate targets. I have a server with a D: drive that is backed up daily and is ...
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20 views

Samba sharing issues with file/folder with $ in filename

I have tried with Multiple Linux VMs on my Windows 10 laptop using Samba to share folders on the host that contain files encrypted with EFS that I am unable to access using Windows File sharing(SMB). ...
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1answer
63 views

Cannot access EFS encrypted files/folders using File Sharing (SMB)

https://www.tenforums.com/network-sharing/174475-cannot-access-efs-encrypted-files-folders-using-file-sharing-smb.html https://answers.microsoft.com/en-us/windows/forum/windows_10-files/cannot-access-...
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1answer
70 views

Mounting SMB Share in Windows Subsystem for Linux (Ubuntu)

How can I connect to a SMB share from Ubuntu running in Windows Subsystem for Linux (WSL)? This took me a while to sift through, a lot of questions and answers have been posted throughout the years, ...
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1answer
92 views

Is SMB 1.0 Client vulnerable to the port 139 hack or is it just the server?

I have an old Buffalo NAS that only supports SMB 1.0. The recent forced upgrade to Windows 10 turned off SMB 1.0 support by default. So, now the Windows box can’t access the shares on the server. I ...
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20 views

File sharing resource is online but not working

I have a Windows Server 2016 that needs to access a file share on a Netapp. I checked all firewall rules so the connection is allowed and I can see the system accessing the file share on port 445. In ...
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85 views

SMB Unable Resolve Host

I have issue with this one particular Windows 10 client unable to connect to any SMB share. Environment: Server: Windows Server 2019 Client: Windows 10 Pro Workstation 20H2 Internal LAN No domain ...
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2answers
135 views

What are the benefits of Windows “Map Network Drive”?

Windows Explorer offers to map SMB paths to a drive letter, i.e. right-click on \\some-computer\some-share, and select Map network drive..., choose a drive letter. Does a "mapped network drive&...
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1answer
26 views

If SMB can share serial ports, does that apply to USB Ports as well?

I was just taking a course and they said something I never heard of, that serial ports can be shared over SMB. That sounded kind of strange to me, but I guess I've never had a need to share a serial ...
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1answer
25 views

Mapped drives disconnecting

We have some NASDrives, I have them mapped to my Windows PC as they are used often. However, whenever my PC restarts, the drives are disconnected and I can't even browse to them through explorer if I ...
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1answer
100 views

What is the real danger of allowing SMB 1 client to access files on legacy device (which is not SMB 2 capable) on the local network?

I have an old device which is not SMB 2 capable. Much has been written about danger of using SMB1 (eg. https://techcommunity.microsoft.com/t5/storage-at-microsoft/stop-using-smb1/ba-p/425858). I would ...
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1answer
50 views

Mapping SMB Shared folder - Mac to Windows

Have set up a SMB shared folder on a Mac over a LAN. So my Mac is the host I want to simply enable this shared folder to always auto mount when I reboot -login on my Windows machine. I assume this ...
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Automate Xcode build based on file changes

Using SMB file sharing to network between a PC and Mac. All of my dev work is done on the PC. I publish from the PC to a shared folder and then on the Mac manually launch Xcode and build-deploy the ...
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28 views

btrfs quotas: Can't delete files when quota is exceeded

I set quotas on our smb server's /home/<name> subvolumes. These subvolumes are exposed over smb as \\server\<name> Now whenever someone tries to delete files in his/her /home folder and is ...
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189 views

How do I open/map a network drive share in Ubuntu (Nautilus)?

I just moved from Windows to Ubuntu 20.04.1 LTS and I'm still adapting, I'm using it on my work laptop and I need to reach network shared folders. In Windows I would just open the file explorer and ...
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Poor SMB performance with SoftEther VPN

I'm trying to setup a VPN connection for SMB shares and I'm finding a high degree of variability in performance with a lot of "rubber banding." The VPN host is a well-spec'd modern i5, 16GB ...
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1answer
50 views

Windows 10 sends wrong user to SMB share

I've got a small private network at home with several Windows 10 PCs / Laptops and a small Qnap Nas which provides a SMB access. It worked fine so far but for two days then one of the clients can't ...
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15 views

How to mount *multiple* SMB shares whithout entering passwords multiple times? (with key file?)

I know how to mount on Linux SMB shares from Windows: sudo mount -t cifs -o user=<name>,uid=<Linux user>,gid=<linux group> //<server>/<sharename#1> <path on linux1>...
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Is there a way to force unmapping of used network drive?

Is there a way to force un-map a network drive without identifying and killing all the processes which have handle on any of network drives? I'm trying to get rid of a problem with Explorer hanging ...
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1answer
75 views

Is there a way use SMB protocol without a router?

I'd like to transfer files from Windows to Ubuntu, with direct LAN cable, I previously got it working using router (wireless), but I can't get it working if I connect them directly using LAN cable ...
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21 views

Android: cannot connect to Windows 10, while it works to Windows 7 from same device through same box

On my phone I'm using File Manager +, Remote option, to connect to my 2 desktops, both linked to the same box via Ethernet cable. The first desktop uses Window 7, and all works fine. The other one ...
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1answer
24 views

Accessing shares on the same Windows 10 computer that hosts a VPN

I have a Windows 10 Pro system setup a VPN host, just using the built-in Windows VPN service. When I connect a client, the client can see other workstations on the VPN host's network, but not the VPN ...
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1answer
51 views

SMB user not authenticated on a specific workstation. How find and fix?

I have a server (Synology RS-820+ with DSM 6.2.3 OS and File Station application) in the cloud. SMB is active, no WINS specified, SMB min = SMB2, SMB max = SMB3. Few Windows 10 workstations share the ...
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104 views

Intermittent failed attempts to login to SMB using Windows account name

I'm having a problem with Windows 10 intermittently trying to login to a file server (SMB/CIFS) which I only found out about because the file server is a QNAP NAS with SMB shares and the NAS has ...
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55 views

Samba shares allow write from multiple users

I have 10 users: user1, user2, user3, ...., userN. (created both unix and samba users) Each user has it's own folder that should be accessible via samba and they can access only their own share with ...
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1answer
208 views

Windows 10 does not show “Always available offline” for my SMB network drive

I'm on Windows 10. I have connected a drive shared by a Raspberry Pi via SMB as a network drive. Access via Windows File Explorer works both for reading and writing. However, I can't seem to make it &...
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2answers
3k views

How to change SMB user in windows 10?

I just changed my username account in my laptop, But when I tried to connect my smb client on my another device, I had to login using my old username. How to change login username?
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1answer
29 views

Windows network shares slow only with external drive

I have two windows (updated) 10 machines connected to my wifi. Both get excellent speeds for both upload and download. Speeds are also good when copying files using the built in windows file sharing, ...
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1answer
33 views

Could I use an external ssd connected to router via usb 3 and to computer va SMB as my plex server?

I have an external SSD attached via USB 3 to my router, an ASUS RT-AC series. I don't have any of the special file sharing services offered by 'Asuswrt' on at all, no Aicloud or anything, just the ...
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1answer
546 views

Windows 10: Getting the SMB version in use for a specific remote host?

I have set up a SAMBA server on Ubuntu. I set the minimum protocol to SMB2, maximum to SMB3. Now, I can connect to the shared path from Windows, and I want to know which protocol (SMB2 or SMB3) Window ...
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1answer
44 views

clearing SMB credentials on Windows 10

I have tried net use * /DEL to no avail, says cannot find anything, tried net use \\server /del to no avail, and the credentials don't show up on the credential manager either. This PC has read ...
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1answer
222 views

Fragmented network file transfer with 256KB bursts

My upload speed suddenly seems to be limited to 355KB/s (which by the way seems to be some magic number, if you Google it, it get's mentioned in many speed related issues) I first noticed it while ...
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183 views

Clear cached SMB session (password)

I have accessed \\myshare and now I want to clear the cached password, so I am asked again for a password when connecting. I can't do it as I have medium integrity level: net session \\myshare /delete ...
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1answer
193 views

Is port 445 enough for SMB?

I have a ssh tunnel from my Windows 10 machine to a Linux server (192.168.10.2 in a LAN, with port 22 exposed on the Internet and forwarded there) that also serves SMB. I tried to forward my local 127....
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1answer
902 views

Why is SMB Client not capable of using RSS although its enabled?

If I transfer a file through a 10G network, my client (W10) becomes laggy because it heavily maxes out one core: Now I found this explanation how to use multiple cores: This typical configuration ...
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1answer
79 views

Files missing when copying from Linux to Windows

I have a weird situation and I don’t know how to fix it: I have a Windows 10 running on a virtual machine that shares a directory. This directory gets mounted on a Linux machine using SMB. The problem ...
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1answer
84 views

Ubuntu with sssd: How to allow user to access smb shares without ssh

I have joined my ubuntu (version 20.04) to my Active directory domain with sssd and net ads. I also have setup a smb share (on the ubuntu sever), with all the proper permissions. A user can access the ...
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281 views

What causes high “NumOpens” of Get-SmbConnection?

I'm having some trouble with parallel transfers to my Unraid server through SMB. While checking different commands I found one strange thing. Get-SmbConnection returns an extreme high value of open ...
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1answer
79 views

What could prevent a device from being pingable by other devices on the same LAN?

I was troubleshooting SMB shares on a Windows PC being inaccessible by an Android TV device (Nvidia Shield TV) when I discovered that it likely was not a SMB/sharing issue, because the Nvidia device ...
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227 views

Slow synology transfer - in one direction

I got a Synology Diskstation (220+) and in setting it up, tried copying files to and from it. I was surprised to see ~500KB/s when transferring files to it from my laptop. I can copy files from the ...
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2answers
53 views

How to share windows folder on internet

Is there any way to share windows folder from one pc to other over internet. Like we can share folder on same network by going to properties of that folder and then enable sharing an then on other pc ...
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1answer
364 views

Connecting to network share from Windows Server fails with “organizations's security policies block unauthenticated guest access”

I am trying to connect from Windows Server to CIFS share. Either using command net use z: \\ip\sharename /USER:user pasword /PERSISTENT:yes or using mouse click on This PC and then *Map Network Drive&...
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305 views

Very slow AFP / SMB / FTP file transfer from Mac to Raspberry Pi running Ubuntu 18.04

File transfer speed via AFP / SMB / FTP from my MacBook to Raspberry Pi is very slow. Less than 2Mbit/s. Hardware MacBook Pro 2017 (Mojave) Raspberry Pi 4 B 4GB (Ubuntu 18.04 server) NetGear R6350 ...

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