similar to: How to turn on SMB3 POSIX extensions in Samba server?

The SMB3 POSIX extensions is different from the old Unix extensions. The Unix extensions can only support vers=1.0, but the new SMB3 POSIX extensions can support SMB3.1.1, vers=3.1.1. You can check this 2018 presentation slides: https://www.snia.org/sites/default/files/SDC/2018/presentations/SMB/Steve_French_SMB311.pdf Page 12 shows that POSIX extensions has been added. Page 22 shows that SMB3

On 05/10/2019 06:49, Chris Han via samba wrote: > Hi, I want to use the SMB3 POSIX extensions in the latest Samba (with > SMB3.1.1, vers=3.1.1). By following the user manual, I have added the > "posix" mount option when mounting, but it shows the following error > messages. > > Error messages: > [xxxxx] CIFS VFS: Server does not support mounting with posix SMB3.11

Hello! I recently tried enabling SMB3 POSIX extensions as I'm only using Linux clients and would like to make use of the standard unix permission bits. However, I'm running into an issue where a simple `cat` fails with -EINVAL when opening the file: openat(AT_FDCWD, "Shells.txt", O_RDONLY) = -1 EINVAL (Invalid argument) The weird thing is that it's intermittent.

On 11/28/24 9:46 PM, Andrew Gunnerson wrote: > Thanks for the replies! > > On Thu, Nov 28, 2024, at 04:34, Rowland Penny via samba wrote: >> I do not use the SMB3 Unix extensions, but perhaps you may not be >> either, have you tried replacing 'server min protocol = SMB2' (which is >> the default anyway) with 'server min protocol = SMB3' ? > > I

Thanks for the replies! On Thu, Nov 28, 2024, at 04:34, Rowland Penny via samba wrote: > I do not use the SMB3 Unix extensions, but perhaps you may not be > either, have you tried replacing 'server min protocol = SMB2' (which is > the default anyway) with 'server min protocol = SMB3' ? I took a packet capture and do see the the client making POSIX extension requests,

Hallo, perhaps someone hat a hint vor me. My centos 7 samba Server ist working fine using Win10 Clienst with Domaine-Integration. Shares are browseable and access is possible with a sepearte login. My problem: I want to mount this shares from a centos7 client. This fails with the following mesages. I tried several variations in my fstab found in the internet. Can anyone give me a hint to to

https://portal.msrc.micro...idance/advisory/adv200005 Published: 03/10/2020 ? Workarounds The following workaround may be helpful in your situation. In all cases, Microsoft strongly recommends that you install the updates for this vulnerability as soon as they become available even if you plan to leave this workaround in place: Disable SMBv3 compression You can disable compression to block

Hi all, Quick question - does Samba server still support Unix extensions when connecting over SMB3? My Linux client recently got upgraded to a CIFS module version that uses SMB3 by default, and since then I lost the ability to create symlinks on my CIFS shares. Running "mount" shows the share mounted with the "nounix" option. If I follow the advice in dmesg and add the

Hi, My name is Shyam Prasad. I work at Microsoft in the Azure Files team. For the past few days, I've been working on getting the Azure Linux VMs to join the AD domain in Azure, login as domain users, and mount Azure file shares over SMB3. Most things work fine. Except that I need perform a few Kerberos related tasks manually, for the SMB3 mount to work with domain user credentials. I did

Dear all, what is about the support for POSIX ACL in Samba protocol implementation of SMB2 and SMB3? >From what I extracted from SNIA and SambaXP developer conference talks and as well as the official Samba Wiki, support for POSIX ACL in SMB2 and SMB3 has been completely abandonned. Am I right? If so, is there any other possibility to allow Linux Clients to natively access access control lists

Hi All, The man page for smb.conf says that 'client max protocol = default' is the same as 'client max protocol = NT1' for the HEAD samba version. Is there some reason I should not change that to SMB3? Thanks! Chad.

Hi, I am running samba-4.1.4 on my Fedora OS. I have provided the "client max protocol = SMB3" and "server max protocol = SMB3" parameters in smb.conf file I'm able to get only SMB2.1 packets using wireshark after fileshare access from my windows 7 machine. And not SMB3 packets. SMB2->NegotiateProtocol Response 0x0202 0x0210 Samba-4.1.4 is supporting SMB3 also. So

On Tue, Feb 26, 2019 at 09:03:41AM -0800, Jeremy Allison via samba wrote: > > Check out the latest cifsfs code. I think Steve > and Aurelian and Ronnie added an ioctl for this. > > I'm here at Vault in Boston with Steve, I'll ask > him :-). Steve says there are two utilities in Linux, getcifsacl and setcifsacl that use a custom ioctl inside the Linux cifsfs kernel

Hello, How secure is SMB3 over Internet? I see that Microsoft Azure is doing SMB3 shares over internet so they seem to think it's secure. Does the SAMBA team recommend this type of scenario OR do they recommend instead running it over a SSH tunnel/VPN?

I know SMB2 support was added for the smbclient in samba 4.1.0, but was SMB3 support also added ? Is there a way to just make smbclient ? Mike

Hai,   ( not all on samba topic but one i wanted to share. )   I did read :  https://wiki.samba.org/index.php/LinuxCIFSKernel mainly because of, from that page, 4.7 Kernel Fix badlock regression for guest mounts (mount with -o guest can fail to Samba servers when patched for badlock). I encountered such a problem yesterday. Luckly not in the office..   The fix. Cifs.ko version

Hello, I am using Samba version 4.2.0rc4-GIT-4701d74. When using a connection in protocol smb2 or smb3, the unix client says symlinks are not supported, for example: # mount //ip.addr/Programs ./tmp -o vers=3.0 # cd tmp # ln -s bla blub ln: failed to create symbolic link ?blub?: Operation not supported # mount //ip.addr/Programs on /mnt/tmp type cifs

Hello.. My server have this settings in [global] section: max protocol = smb3 min protocol = smb2 When I try connect to server using my clients (Centos 7.3/Ubuntu 16.04) I can't because clients still trying NT1. I must explicity add in smb.conf on clients the option ' client max protocol = smb3' and the connections works again. The question is: If I have defined the min and max

Hi Jeremy, Hi Steve, Hi Ronnie, thanks for your replies and the profound discussion. I think, it's best to demonstrate my problem case along an real world example: The following log of a console sesssion shows how I am doing the mounts on behalf Linux Kernel CIFS-FS Module on the client side against a Samba 4.5 file server (both running on Debian Stretch 9.8) via SMB/CIFS resp. SMB2 protocol:

ACL management can be done for SMB2/SMB3 ACLs with two common tools depending on your preference. smbcacls (somewhat similar to using cacls.exe or icacls.exe in Windows but specifying the UNC name rather than a local path name). smbcacls sets up and tears down a network connection each time it is run and uses Samba user space code. or setcifsacl/getcifsacl (which calls cifs.ko to access the