Accessing Samba shares from Linux
Recent Linux Kernels contain the userspace filesystem FUSE. This allows you to use all sorts of new an inovative ways for mounting remote fileystems with normal user privileges. Samples are the "gnome userspace virtual filesystem" and "sshfs" based on SSH.
All graphical desktop file managers must use FUSE based solutions to access remote SMB/CIFS filesystems because they are running with normal user privileges.
In all cases, the share will be mounted in:
in order to be able to access from the command line.
As documented in Workstations/FindYourData the share //itet-stor.ee.ethz.ch/$USER is a good place to find all your accessible CIFS resources. Technical this share is an implementation of a "Distributed File System (DFS)" root for your account. Unfortunately not all desktop file managers can handle this special kind of a share. With the KDE file managers Konqueror and Dolphin you can't use this share (see Konqueror, Dolphin).
Recent Debian releases limit the maximum protocol version of Samba to a lower version than commonly offered by modern Windows servers. This is easily remedied by creating a minimal Samba configuration with the following string of commands:
1 mkdir ~/.smb && echo -e '[global]\client max protocol = SMB3' > ~/.smb/smb.conf
You can also connect to a Samba share on the command line. After you run that command, you can browse the share in Nautilus.
pmuster@testclient:~> gvfs-mount smb://itet-stor.ee.ethz.ch/pmuster Password required for share pmuster on itet-stor.ee.ethz.ch User [pmuster]: pmuster Domain [WORKGROUP]: d Password: ********
To unmount a share on the command line, just add the -u flag:
pmuster@testclient:~> gvfs-mount -u smb://itet-stor.ee.ethz.ch/pmuster
smbclient is something like an interactive shell to the file server and also a good troubleshooting tool for connection problems. To connect your personal DFS root share enter:
pmuster@testclient:~$ smbclient -W d //itet-stor.ee.ethz.ch/pmuster Enter pmuster's password: Domain=[D] OS=[Windows 6.1] Server=[Samba 4.2.10-Debian] smb: \> smb: \> ls . D 0 Thu Oct 13 15:27:09 2016 .. D 0 Thu Nov 24 04:55:59 2016 home D 0 Thu Oct 13 15:27:09 2016 project01 D 0 Thu Oct 13 15.27:09 2016 47929224 blocks of size 1024. 37295664 blocks available smb: \> cd home smb: \home\> smb: \home\> ls . D 0 Thu Nov 24 09:35:24 2016 .. DA 0 Thu Nov 24 08:17:38 2016 public_html D 0 Wed Feb 3 15:34:27 2016 Desktop D 0 Mon May 23 14:57:56 2016 Downloads D 0 Mon May 23 14:50:26 2016 .... 1536000 blocks of size 1024. 1340637 blocks available smb: \home\> exit pmuster@testclient:~$
With the command help you get a list of all available commands inside the shell.
You can also mount your Samba home area with CIFS. This method is only available on computers where you have root access (i.e. this does not work on Linux workstations managed by us). If the command returns an error message saying "wrong fs type", make sure the packages "cifs-utils" and "keyutils" are installed.
$ sudo su # mkdir /itet-stor # mount -t cifs -o user=<nethz_login>,domain=d //itet-stor.ee.ethz.ch/<nethz_login> /itet-stor
Desktop File Managers
Select on the left side Connect to network and enter the name of the share in the Server Address field, e.g. as smb://itet-stor.ee.ethz.ch/pmuster.
Enter the details as given in the screenshot below.
Open the Connect to Server application and enter the details similar to the screenshot below.
As mentioned above Konqueror and Dolphin can't be used to access smb resources over \\itet-stor\username.
Open your Konqueror or Dolphin Filemanager/Webbrowser.
As location, use smb://server/share followed by <Enter>. Type your username and password in the following dialog box.
ID home share
The share-<?>-$ part of the location is dependant on the first character in your username. If your username is kpelle, this part of the location must be changed to share-k-$.
D-ITET home share
Password: yourPrivatePasswordThe homes are distributed over multiple itet_isg_homes_<nn> shares, to see the number to use you can look at the NFS path of your home:
pmuster@testclient:~$ ssh login.ee.ethz.ch "df ." firstname.lastname@example.org's password: Filesystem 1K-blocks Used Available Use% Mounted on nas-itet-01.ethz.ch:/sco_itet_005/itet_isg_homes_03/pmuster 1536000 195072 1340928 13% /home/pmuster pmuster@testclient:~$
So the location for pmuster's home is: smb://nas-itet-01/itet_isg_homes_03/pmuster.
D-ITET project share
Password: yourPrivatePasswordAgain the NFS path of the project home is needed:
pmuster@testclient:~$ ssh login.ee.ethz.ch "df /home/mare" Filesystem 1K-blocks Used Available Use% Mounted on itetnas02:/usr/itetnas02/data-project-01/mare 3170549760 620497920 2539297792 20% /home/mare pmuster@testclient:~$
So the location for the mare project home is: smb://itetnas02.ee.ethz.ch/mare.
Depending on the way of accessing a Samba share, error messages similar to the following might appear:
gvsf-mount: Error mounting location: Failed to mount Windows share: Connection timed out
nautilus: Unhandled error message: Failed to mount Windows share: Connection timed out
smbclient: protocol negotiation failed: NT_STATUS_CONNECTION_RESET
This indicates a failed protocol negotiation between the Samba server and your client in case the protocol version offerd by the server is higher than the client accepts. To fix this apply the protocol configuration mentioned above.
smbclient accepts the parameter "-m" to set the protocol level directly without the need to apply the protocol configuration:
pmuster@testclient:~$ smbclient -W d -m SMB3 //itet-stor.ee.ethz.ch/pmuster
SSH File System
$ mkdir ~/tardis-home $ sshfs <d\your_tardis_login>@login.ee.ethz.ch: ~/tardis-home
But please note, that you can't do sshfs on homes.ee.ethz.ch - use login.ee.ethz.ch instead!
You can also unmount it again by typing:
$ fusermount -u ~/tardis-home
Please note that sshfs is not officially supported by the ISG.EE