LXD Microsoft Server

Most people use Microsoft file services either peer to peer or hosted on a NAS, a media server, or a Microsoft system configured for file services. In this video we review a very simple way to create shared folders inside of a LXD container and share them to users.

We have covered LXD configuration many times on the channel. Assuming you already have LXD installed and configured with the “lxd init” command, let’s review how to convert your LXD host ethernet interface to be a software bridge and also how to create a LXD profile that uses that bridge.

To reconfigure your ethernet device on your host, head over to the netplan configuration location.

sudo su
cd /etc/netplan

Edit your netplan yaml file (your name may differ):

sudo nano 00-installer-config.yaml

Replace the content with the following adjusting your physical Ethernet adapter name from enp3s0 to yours, setting a static address which is unused on your network, and setting your gateway address:

  version: 2

      dhcp4: false
      dhcp6: false

      interfaces: [enp3s0]
      addresses: []
         - to: default
        stp: true
        forward-delay: 4
      dhcp4: no

Once you have edited the file to your liking, save and apply it:

sudo netplan apply

Next, create a new lxd profile to use the bridge:

lxc profile create bridgeprofile

Cut and paste the following into your terminal for this new profile:

lxc profile create untagged
cat <<EOF | lxc profile edit untagged
description: Untagged macvlan LXD profile
    name: eth0
    nictype: bridged
    parent: bridge0
    type: nic

The purpose of the bridge and the bridge profile is to be able to easily create LXD containers with the address of your main LAN. Here’s how we create our new container:

lxc launch ubuntu:22.04 CIFS-Server --profile default --profile bridgeprofile -c limits.memory=2048MB -c limits.cpu.allowance=20% -c boot.autostart=true 

Once the container is created, connect to its console:

lxc exec CIFS-Server bash

Update the container and create a user account for yourself. Also, install net-tools for convenience.

adduser scott
usermod -aG sudo scott
apt install net-tools

Install Samba and backup the samba configuration file:

apt install samba -y
sudo cp -pf /etc/samba/smb.conf /etc/samba/smb.conf.bak

We added a group called smgrp for a group share. We created a new user named “shares” and we granted the shares user and the scott user access to the smgrp:

sudo addgroup smbgrp
sudo useradd shares -G smbgrp
sudo usermod -aG smbgrp scott

We created Samba passwords for both user accounts:

sudo smbpasswd -a scott
sudo smbpasswd -a shares

We created the folder for the shares account, set permission and changed ownership accordingly for group access.

sudo mkdir -p /samba/shares
sudo chmod -R 0770 /samba/shares
sudo chown root:smbgrp /samba/shares

To see how you Samba server is running and show is connected:


Edit the Samba configuration file, and add share definitions at the end:

sudo nano /etc/samba/smb.conf

I added definitions for the group share and for a personal share to the end of the file:


comment = Group Share Folder
path = /samba/shares
valid users = @smbgrp
browsable = yes
writable = yes
read only = no


path = /home/scott
valid users = scott
browsable = yes
writable = yes
read only = no

Save the file out. To make sure there are no errors:


You can remove a user’s access by deleting their Samba password:

sudo smbpasswd -x scott

NOTE: In some instances, it is necessary to restart the Samba server to get a configuration to update:

sudo systemctl restart smbd