outcoldman
outcoldman Denis Gladkikh

Ubuntu as a home server. Part 4. Samba server.

Ubuntu, Samba, Windows, and Linux
  1. Dynamic DNS.
  2. OpenVPN.
  3. AFP Server (for OS X).
  4. SMB server (for Windows and Linux).
  5. Reliability (Backups).

In Part 3 we have set up AFP file share for Apple devices, in this part we will configure file share for Windows devices (also this share is compatible with Linux as well). To do that we will use [Samba server](http://en.wikipedia.org/wiki/Samba_(software).

Samba server

You can configure samba server using UI or using samba configuration file. I found that using configuration file is much easier to do.

First of all you need to install samba if it is not installed yet

$ sudo apt-get update
$ sudo apt-get install samba

Now we are ready to configure it.

$ sudo vim /etc/samba/smb.conf

I kept default settings under section global and commented all other sections (by default only printers and print$ should be uncommented). I don’t need to share any printers, so I did not need this section. If you want to share printer, you probably want to keep it.

This is configuration which I’ve added

[user1]
    comment = user1
    path = /home/user1
    browsable = yes
    hide dot files = yes
    read only = no
    create mask = 0775
    directory mask = 0775
    valid users = user1 user2

[user2]
    comment = user2
    path = /home/user2
    browsable = yes
    hide dot files = yes
    read only = no
    create mask = 0775
    directory mask = 0775
    valid users = user1 user2

In my case I have only two users on my Ubuntu server and I want to allow each user to see other users home directories in read-only mode (the same way as I configured AFP server in previous part). Let’s take a look on most interesting settings

$ ls -l /home
drwxrwxr-x  9 user1 user1 4096 Nov 17 20:52 user1/
drwxrwxr-x 40 user2 user2 4096 Nov 20 22:54 user2/

As you can see both folders user1 and user2 has permissions r-x for others. If you want to do the same and for some reason you have different permissions you can do

$ sudo chmod -R o+rx /home/

After enable these two users for Samba server

$ sudo smbpasswd -a user1
$ sudo smbpasswd -a user2

These two commands will prompt you to enter passwords for these users which will be used when these users will try to access network share.

Auto mount Samba share in Linux machines

For one of my other Linux machines I wanted to configure auto mounting for shared folder from my server. For this will be better to use NFS shares, but as I said in previous part - it is much harder to configure NFS shares, so I keep using Samba for this.

For example if you have home folder /home/user1 configured as in my example above and you want to auto mount only one folder /home/user1/shared into /home/user1/shared_from_server on other Linux machine (assuming that on this Linux server you also have user user1) at first you need to create this folder on client Linux machine

$ mkdir /home/user1/shared_from_server

After that you will need to keep credentials for this share somewhere in secret on client machine, I placed it under /etc/samba

$ sudo vim /etc/samba/user

You need to put username and password in this file

username=user1
password=user1_p@ssword

Small protection, make this file read-only only for owner (which should be root, as we created this file with sudo command)

$ sudo chmod 0400 /etc/samba/user

After that modify /etc/fstab

$ sudo vim /etc/fstab

To include next line

//myserver/user1/shared /home/user1/shared_from_server cifs credentials=/etc/samba/user,noexec 0 0

Now you can try to reboot to test that share will be auto mounted.

Have feedback or questions? Looking for consultation?

My expertise: MongoDB, ElasticSearch, Splunk, and other databases. Docker, Kubernetes. Logging, Metrics. Performance, memory leaks.

Send me an email to public@denis.gladkikh.email.

The content on this site represents my own personal opinions and thoughts at the time of posting.

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