Step 1: Install and Configure Samba

Samba is a tool for sharing files between Linux and Windows systems.

1. Install Samba

sudo apt update sudo apt install samba -y

2.  **Start Samba and enable it to run on boot**
 ```bash
sudo systemctl start smbd
sudo systemctl enable smbd

3. Open the firewall to allow Samba

sudo ufw allow samba

4.  **Create a Samba User**
 - Add a new user (skip if the user already exists):
   ```bash
  sudo useradd -M -s /sbin/nologin username
  ```
 - Set the Samba password:
   ```bash
  sudo smbpasswd -a username
  sudo smbpasswd -e username
  ```

### **Step 2: Set Up a Shared Folder**
1.  **Create the shared folder**
 ```bash
mkdir -p /var/shared
sudo chmod 777 /var/shared

2. Edit the Samba configuration file

   • Open the configuration file:

   sudo vim /etc/samba/smb.conf

   - Add the share settings to the end of the file:
   

   [shared] path = /var/shared browsable = no writable = yes read only = no guest ok = no create mask = 0777 directory mask = 0777

   P.S. It's best to set both `read only` and `guest ok` to `no`. I once had a worm drop some files into my Samba share.
   
   

3. Save and exit the configuration file

   • Press Ctrl+O to save, and Ctrl+X to exit.

4. Restart the Samba service

sudo systemctl restart smbd

### **Step 3: Access the Shared Folder from Windows 11**
1.  **Check your Ubuntu's IP address**
 ```bash
ip a

Take note of the IP address, which will look something like `192.168.x.x`.

2. Connect to the shared folder - Open File Explorer on Windows 11. - In the address bar, type: \\<Ubuntu_IP>\SharedFolder For example: \\192.168.1.100\SharedFolder

3. Test the connection If everything is working correctly, you should be able to see the contents of the shared folder.

Troubleshooting Tips

1. Manually open the required ports for Samba

sudo ufw allow proto tcp from any to any port 137,138,139,445 sudo ufw status

2.  **Check the Samba configuration file and directory permissions**
 - Confirm that the share settings in `/etc/samba/smb.conf` are correct.
 - Check the permissions of the shared folder:
   ```bash
  ls -ld /var/shared
  ```
   If necessary, adjust the permissions:
   ```bash
  sudo chmod 777 /var/shared
  ```

3.  **Check the Samba logs**
 ```bash
sudo tail -f /var/log/samba/log.smbd

4. Use the IP address instead of the hostname Use \<IP 地址>\shared in Windows to avoid potential name resolution issues.