Help with Samba: "usershares are currently disabled"

Help
1

Hello,

absolutely new to NixOS and having an issue with Samba.

I started with the Samba wiki entry, copying & pasting the server example (adapting the paths).

After setting Credential used to access SMB shares I can connect to shared resources on other computers. So far, so good.

Issue starts when I try to share from NixOS.

Tried with Dolphin, but in the “Share” tab shows a “Samba is not installed on your system” message. I then installed kdeApplications.kdenetwork-filesharing (is this necessary?), and the issue persists.

A few attempts that I did.

# systemctl restart samba from the Wiki page fails. Perhaps Samba is actually not installed!, but the command # systemctl restart samba-smbd works. Nothing changes, but I assume now that Samba is installed. And it seems to be the case.

/etc/samba/samba.conf exists:

$ ls /etc/samba/smb.conf                
/etc/samba/smb.conf

services are enabled:

$ systemctl list-unit-files | grep samba
samba-nmbd.service                                               enabled        
samba-setup.service                                              linked         
samba-smbd.service                                               enabled        
samba-winbindd.service                                           enabled        
samba.target                                                     enabled

Probably not necessary, but I tried with smbpasswd etc.

Rebooted. Nothing. Tried something else:

$ net rpc user   
Enter WORKGROUP\max's password: 
max
$ net rpc share list -U max
Enter WORKGROUP\max's password: 
private
public
IPC$

Last try:

$ net usershare info --long
net usershare: usershares are currently disabled

Interesting… Can be this the problem?
After searching in the Wiki, Google, etc I have no clues: how to enable usershares in NixOS (if this is the point)?

If it can help, I have a gist with the excerpt that I use,

$  nix --version          
nix (Nix) 2.2.2
system.stateVersion = "19.03";
1 Like
2

Did you manage to get this working? I think I am getting into the same problem.

3

If you can list the shares from the local system it might be an issue with the firewall.
Check the firewall (“iptables -vnL” as root) to see if the dropped packages increase while you’re connecting from another system. Depending on your configuration that could also be logged, so also check “journalctl -f” as root while connecting.

Check the samba logs (not sure where they are on NixOS by default) for any indication of connection errors.

5

Thank you, and sorry for the late reply.

No, I can not list the shares neither from the local host.

I disabled the firewall. After restarting, with journalctl -f I still get (for localhost):

Jan 23 16:02:24 max-nixos smbd[8434]: [2020/01/23 16:02:24.207737,  0] ../../lib/util/access.c:365(allow_access)
Jan 23 16:02:24 max-nixos smbd[8434]:   Denied connection from 192.168.0.161 (192.168.0.161)
Jan 23 16:02:24 max-nixos smbd[8435]: [2020/01/23 16:02:24.211631,  0] ../../lib/util/access.c:365(allow_access)
Jan 23 16:02:24 max-nixos smbd[8435]:   Denied connection from 192.168.0.161 (192.168.0.161)
Jan 23 16:02:24 max-nixos xsession[2902]: kio_smb: open  "smb://"

From another host:

Jan 23 16:08:48 max-nixos smbd[16666]: [2020/01/23 16:08:48.279444,  0] ../../lib/util/access.c:365(allow_access)
Jan 23 16:08:48 max-nixos smbd[16666]:   Denied connection from 192.168.0.160 (192.168.0.160)
Jan 23 16:08:48 max-nixos smbd[16667]: [2020/01/23 16:08:48.280500,  0] ../../lib/util/access.c:365(allow_access)
Jan 23 16:08:48 max-nixos smbd[16667]:   Denied connection from 192.168.0.160 (192.168.0.160)

After systemctl restart samba-smbd.service a few times

Jan 23 16:14:24 max-nixos nmbd[23433]: [2020/01/23 16:14:24.747511,  0] ../../source3/nmbd/nmbd_become_lmb.c:397(become_local_master_stage2)
Jan 23 16:14:24 max-nixos nmbd[23433]:   *****
Jan 23 16:14:24 max-nixos nmbd[23433]: 
Jan 23 16:14:24 max-nixos nmbd[23433]:   Samba name server MAX-NIXOS is now a local master browser for workgroup WORKGROUP on subnet 172.17.0.1
Jan 23 16:14:24 max-nixos nmbd[23433]: 
Jan 23 16:14:24 max-nixos nmbd[23433]:   *****
Jan 23 16:14:24 max-nixos nmbd[23433]: [2020/01/23 16:14:24.747668,  0] ../../source3/nmbd/nmbd_become_lmb.c:397(become_local_master_stage2)
Jan 23 16:14:24 max-nixos nmbd[23433]:   *****
Jan 23 16:14:24 max-nixos nmbd[23433]: 
Jan 23 16:14:24 max-nixos nmbd[23433]:   Samba name server MAX-NIXOS is now a local master browser for workgroup WORKGROUP on subnet 192.168.0.161
Jan 23 16:14:24 max-nixos nmbd[23433]: 
Jan 23 16:14:24 max-nixos nmbd[23433]:   *****

Any idea?

6

Sorry for the late reply. Not really, I am back today to NiXOS and exploring @tokudan suggestion, but so far no news :slight_smile:

7

@breakds @tokudan thanks both. Solved. At some point I added #hosts deny = 0.0.0.0/0 and left the hosts allow before that line :man_facepalming:

@breakds check if it also your case.

Edit: then stopped to work again, silently failing :smiley:

8

I guess you didn’t mean you’ve got it to work with Dolphin. As can be seen in https://cgit.kde.org/kdenetwork-filesharing.git/tree/samba/filepropertiesplugin/sambausershareplugin.cpp , its Samba plugin currently looks for smbd in /usr to detect if Samba is installed. Empty /usr/sbin/smbd can be created as a temporary workaround.

1 Like