Every NAS owner eventually wants their files from outside the house. There is a fast way to arrange that which gets home NAS boxes hacked, and two or three slower ways that are genuinely safe. This page names the dangerous shortcut plainly, then grades the real routes - VPN, Tailscale-style access, and sharing through an app.
The rule underneath everything on this page is one line: your NAS should be reachable from the internet only through a locked door with your name on it - a VPN - never by simply opening its own ports to the world. Automated scanners sweep the internet for exposed file-sharing services around the clock, and a home NAS is exactly what they are looking for.
Example of the safe rule - the VPN is the only service the internet may knock on.
Forwarding the SMB port (445), the TrueNAS web interface, or SSH straight to the internet feels like a five-minute win. It is, instead, how home servers get found, forced open and encrypted for ransom - the scanners are automated and patient. However convenient it looks in a forum post, do not expose the NAS itself. Anything below that achieves the same goal is the door, the lock and the key in one.
A VPN makes your phone or laptop a temporary, encrypted member of your home network - after which the NAS behaves exactly as if you were on the sofa. WireGuard is the modern choice: it can run on many routers, or on the TrueNAS box itself, and setup is one configuration per device. This route costs a little effort once, depends on nobody else's service, and is the option this guide recommends for anything beyond a single shared photo.
Tools in the Tailscale family build the VPN for you: install on the NAS and on your phone, sign in, and the devices find each other through encrypted tunnels with no port forwarding at all. The honest trade: it is the easiest route by far, and it leans on a company's free tier and goodwill - fine for a home user today, worth re-checking once a year. For a small office that needs several people in, weigh the paid plans against running your own WireGuard.
Sometimes you do not need the NAS - you need one folder, reachable. Running a file app such as Nextcloud on the TrueNAS box gives you browser access, phone apps and share links for individual files, while the NAS admin interface stays invisible. Keep the app updated - an exposed, unpatched app is its own risk - and give each outside person their own login, never a shared one.
Every step shown live on screen - installation, pools, shares and the settings that matter.
▶️ Watch Full VideoOnly if you host the VPN yourself and your home connection's address changes - then a free dynamic-DNS name keeps your phone able to find home. The mesh-style tools remove even that, since their service introduces your devices to each other.
It offers a free tier aimed at personal use, which comfortably covers one household's NAS and phones. Treat any free tier as a pleasant arrangement to re-check yearly, not a law of nature - the self-hosted VPN route depends on nobody.
Yes - and you should. Use a share link from a file app like Nextcloud with an expiry date, rather than creating accounts or, worst of all, opening the NAS itself. One file gets one link; the archive stays behind the door.