How to Share Files Across Your Home Network Using a NAS

The moment a household has more than one computer, files start scattering. A document saved on the desktop, photos stuck on a laptop, a USB drive that lives in a drawer. Learning to share files across your home network using a NAS fixes that for good by putting one central, always-on location that every device can reach. The mechanism is SMB, a shared-folder protocol that Windows, macOS and Linux all speak natively, so once it is set up, every machine simply sees the folders.

Quick Answer

You share files from a NAS by creating shared folders, adding user accounts with SMB authentication, and setting per-user permissions, then connecting each device to those folders over SMB. The whole process takes under 30 minutes, and afterwards Windows, macOS and Linux machines all see the same central storage with no USB shuffling.

Plan before you click

Five minutes of planning saves an hour of cleanup. Before creating anything, jot down:

• Who needs access (each person and device in the home).
• Whether everyone gets the same access or some folders should be private.
• Whether a person needs read-and-write (can change files) or read-only (can view but not alter).

That short list decides how many shared folders you make and how you split permissions. A typical home ends up with one shared family folder everyone can use, plus a private folder per person. If you have not yet chosen a unit, the diskless NAS units at Evetech include a wide selection of enclosures suited to home file sharing.

Step-by-step setup

The exact menu names vary slightly between NAS brands, but the sequence is the same on every modern unit.

1. Create user accounts

In the NAS control panel, create a separate user account for each person, not one shared login. Give each a username and password, and make sure SMB or Samba authentication is enabled for that account. This is what lets you control who can touch which folders later. Avoid using the root or admin account for daily file access.

2. Create your shared folders

Create the folders you planned. A common structure is one Family or Shared folder for things everyone uses, and a private folder named for each person. On the NAS these are usually called shared folders, datasets or volumes depending on the brand.

3. Set per-user permissions

This is the heart of the job. For each folder, set who can access it and at what level:

• The shared family folder: grant read-and-write to everyone who should contribute.
• A private folder: grant full access to its owner only, and no access to others.
• A read-only folder (handy for things like a movie library): grant read-only to most users so they can watch but not delete.

Use the folder's permission or ACL screen to apply these. Granting access by user or by a built-in users group keeps it manageable as the household grows.

4. Turn on the SMB service

Enable the SMB (sometimes shown as Windows File Sharing or Samba) service in the NAS network settings if it is not already on. This is the protocol that makes the folders visible to every operating system. Note the NAS's local IP address, you will need it to connect.

5. Connect from each device

Now point each machine at the NAS:

• Windows: open File Explorer, type two backslashes followed by the NAS IP in the address bar (for example backslash-backslash-192.168.1.x), enter the user's NAS username and password, and the shared folders appear. Right-click to map one as a network drive so it returns after every reboot.
• macOS: in Finder choose Go then Connect to Server, enter smb:// followed by the NAS IP, sign in, and the folders mount in Finder.
• Linux: in the file manager use smb:// followed by the NAS IP, or mount the share with the cifs tools, and authenticate with the same account.

Each person logs in with their own account, so they see exactly the folders their permissions allow.

6. Test the permissions

Do not skip this. Log in as a normal user (not the admin) and confirm three things: the shared folder is writable, a private folder belonging to someone else is hidden or blocked, and a read-only folder genuinely refuses deletions. Fixing a permission gap now beats discovering it after someone overwrites a file. Picking up a quick SSD from the SSD best sellers at Evetech makes a solid choice for cache or system storage to keep transfers snappy.

Keep it healthy

A few habits keep a home NAS reliable:

• Give the NAS a fixed local IP (a DHCP reservation in your router) so the connection address never changes.
• Keep accounts personal, never share one login across people, or you lose the ability to control access.
• Back up the important shared folders elsewhere. A NAS centralises your files, but central does not mean backed up.

Frequently Asked Questions

Do all my devices need to be the same brand to access the NAS?

No. SMB is a cross-platform protocol, so Windows, macOS, Linux, Android and iOS can all connect to the same NAS shared folders regardless of brand. You set the folders up once and every device sees them using its native file manager.

Why give everyone separate accounts instead of one shared login?

Separate accounts are what make per-user permissions possible. With individual logins you can grant one person write access, another read-only, and keep private folders private. A single shared login removes all of that control and makes it impossible to tell who changed what.

Can I make some folders read-only for the kids?

Yes. When you set permissions on a folder, grant read-only access to the accounts that should view but not change files, such as a shared media library. Those users can open and play files but cannot delete or overwrite them, while you keep full control on your own account.

How do I make the NAS reconnect automatically after a reboot?

On Windows, map the share as a network drive and tick reconnect at sign-in. On macOS, add the mounted share to your login items. Giving the NAS a fixed IP through a router reservation also ensures the address never changes, so the saved connection keeps working.

Is SMB sharing secure on a home network?

Within your own home network it is fine for everyday use, provided you use strong per-user passwords and avoid exposing the NAS directly to the internet. Keep the NAS firmware updated, and if you ever need remote access, use a VPN rather than opening SMB to the outside world.