Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsiTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
The highest-impact NAS changes are straightforward: remove unnecessary internet exposure, replace default administrator access, require multi-factor authentication (MFA), limit each account to the shares and apps it needs, enable failed-login protection, install firmware and application updates, and maintain both snapshots and a separate backup. Exact labels differ by NAS maker and software version, so verify every path on your installed release.
1. Remove unnecessary internet exposure first
A NAS is safest when its management interface and file services are reachable only from your home network. In your router, delete port-forwarding rules that point to the NAS and turn off UPnP-based automatic port mapping unless you have a specific, understood requirement for it. Do not put the NAS in the router’s DMZ, and keep the router firewall enabled.
QNAP advises disabling port forwarding and UPnP forwarding to avoid exposing NAS services. Its guidance describes direct forwarding as fast but vulnerable; the recommendation applies broadly even though menu names and defaults differ by vendor. See the QNAP security best-practice FAQ and the QNAP product-security overview.
Free tools Windows power users keep installed
One-click scans. No signup required.
Leave remote access off when you do not need it
If you only use files, photos, backups, or media while at home, disable the NAS vendor’s remote-access feature as well as router mappings. This removes an entire class of internet login attempts and avoids maintaining a service you do not use.
#1 Best Overall
- High-capacity add-on storage.Specific uses: Business, personal
- Fast data transfers
- Plug-and-play ready for Windows PCs
- WD quality inside and out
Choose a safer method when outside access is required
Remote access is a trade-off, not a single setting. Compare the practical choices before enabling one:
| Method | Exposure and setup | Trade-offs QNAP describes | Best fit |
|---|---|---|---|
| Direct port forwarding or UPnP | NAS services are reachable through a router port; setup can be automatic. | Fast and convenient, but vulnerable because services are exposed to the public internet. | Generally avoid for home administration and file access. |
| VPN on the router | Connect to the home network through a supported router VPN. | Relatively simple for users, but performance and client capacity can be limited by router hardware. | Households wanting remote access without publishing NAS services. |
| VPN hosted by the NAS | The NAS runs the VPN service and authenticates clients. | More configurable, but requires more setup and ongoing maintenance. | Users comfortable managing VPN software and updates. |
| Vendor relay service | A relay connects the client without exposing the NAS directly through a router port. | Easy to set up and avoids direct exposure, but connection speed can be slower and controls depend on the vendor. | Occasional remote access where simplicity matters more than maximum throughput. |
Whichever option you choose, restrict permitted users, require MFA where supported, and turn it off when no longer needed. A changed management port may reduce background scan noise, but it is not a security boundary and must never substitute for removing public exposure, patching, and controlling accounts.
2. Replace default administrator access and reduce permissions
Create and verify a named administrator
Known default usernames are attractive targets. Create a personal administrator account with a unique, long password, sign in successfully with it, and only then disable the default administrator account if your NAS supports that operation. QNAP specifically recommends disabling the default admin account where applicable. If your platform cannot disable it, use a different administrator name, a strong password, MFA, and failed-login protection.
QNAP’s FAQ gives an eight-character minimum with mixed character classes. That is a vendor-specific recommendation on a page last modified 2022-12-16, not a universal current standard; use a longer passphrase that is unique to the NAS and store it in a password manager.
Separate administration from everyday file use
Do not use an administrator account for ordinary file browsing, media playback, synchronization, or backup jobs. Create individual accounts for household members and services. Grant each account only the shared folders, applications, and operations it needs. Remove stale accounts promptly, and review inherited group permissions as well as direct permissions.
Rank #2
- Entry-level NAS Personal Storage：UGREEN NAS DH2300 is your first and best NAS made easy. It is designed for beginners who want a simple, private way to store videos, photos and personal files, which is intuitive for users moving from cloud storage or external drives and move away from scattered date across devices. This entry-level NAS 2-bay perfect for personal entertainment, photo storage, and easy data backup (doesn't support Docker or virtual machines).
- Set Your Devices Free, Expand Your Digital World: This unified storage hub supports massive capacity up to 64TB.*Storage drives not included. Stop Deleting, Start Storing. You can store 22 million 3MB images, or 2 million 30MB songs, or 43K 1.5GB movies or 67 million 1MB documents! UGREEN NAS is a better way to free up storage across all your devices such as phones, computers, tablets and also does automatic backups across devices regardless of the operating system—Window, iOS, Android or macOS.
- The Smarter Long-term Way to Store: Unlike cloud storage with recurring monthly fees, a UGREEN NAS enclosure requires only a one-time purchase for long-term use. For example, you only need to pay $459.98 for a NAS, while for cloud storage, you need to pay $719.88 per year, $2,159.64 for 3 years, $3,599.40 for 5 years. You will save $6,738.82 over 10 years with UGREEN NAS! *NAS cost based on DH2300 + 12TB HDD; cloud cost based on 12TB plan (e.g. $59.99/month).
- Blazing Speed, Minimal Power: Equipped with a high-performance processor, 1GbE port, and 4GB RAM on Board, this NAS handles multiple tasks with ease. File transfers reach up to 125MB/s—a 1GB file takes only 8 seconds. Don't let slow clouds hold you back; they often need over 100 seconds for the same task. The difference is clear.
- Let AI Better Organize Your Memories: UGREEN NAS uses AI to tag faces, locations, texts, and objects—so you can effortlessly find any photo by searching for who or what's in it in seconds. It also automatically finds and deletes similar or duplicate photo, backs up live photos and allows you to share them with your friends or family with just one tap. Everything stays effortlessly organized, powered by intelligent tagging and recognition.
Synology documents per-folder and per-application permissions, firewall controls, Auto Block, Account Protection, and MFA in its Security Solutions overview. The same principle applies to other platforms even when the labels differ.
Require MFA and block repeated failures
Enable MFA for every administrator and for other users who can access sensitive data or remote services. Supported DSM configurations can use app approval, one-time passwords, or compatible hardware security keys such as FIDO2/U2F devices. Turn on failed-login blocking or account-protection features, set a notification destination you monitor, and ensure the lockout policy does not prevent a legitimate recovery path.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →3. Disable unused services, applications, and accounts
Every enabled service adds code, credentials, and a possible attack surface. Uninstall applications no one uses and disable services such as Telnet, FTP, or SSH when they are not required. Check dependencies first: a backup job, scanner, camera system, or synchronization client may rely on a service you are considering disabling. If SSH is needed for administration, limit it to the local network or VPN, use key-based authentication when the platform supports it, and do not expose it through a router port.
Review the NAS application list for packages you did not install, remove unknown accounts, and investigate unfamiliar login alerts rather than dismissing them. Keep certificates valid for any encrypted web interface or service, and use the vendor’s security-notification controls so important events reach you.
4. Keep firmware and applications current
Enable automatic security updates when your model and household can tolerate automatic restarts; otherwise check the vendor’s update page regularly and install supported firmware and package updates promptly. Firmware availability depends on the exact model and software branch, so an instruction written for one generation may not match your interface.
Rank #3
- Value NAS with RAID for centralized storage and backup for all your devices. Check out the LS 700 for enhanced features, cloud capabilities, macOS 26, and up to 7x faster performance than the LS 200.
- Connect the LinkStation to your router and enjoy shared network storage for your devices. The NAS is compatible with Windows and macOS*, and Buffalo's US-based support is on-hand 24/7 for installation walkthroughs. *Only for macOS 15 (Sequoia) and earlier. For macOS 26, check out our LS 700 series.
- Subscription-Free Personal Cloud – Store, back up, and manage all your videos, music, and photos and access them anytime without paying any monthly fees.
- Storage Purpose-Built for Data Security – A NAS designed to keep your data safe, the LS200 features a closed system to reduce vulnerabilities from 3rd party apps and SSL encryption for secure file transfers.
- Back Up Multiple Computers & Devices – NAS Navigator management utility and PC backup software included. NAS Navigator 2 for macOS 15 and earlier. You can set up automated backups of data on your computers.
Synology says its NAS products will receive firmware and software updates for up to five years. That is a vendor statement, not a guarantee for every model or region; check the support status of your device. An old, unsupported NAS should not be exposed to the internet. Isolate it on the home network, place it behind a VPN, or replace it if it stores irreplaceable data.
QNAP’s best-practice FAQ also recommends current firmware and application versions, but the page was last modified in 2022. Use it for the security principle and verify the current update workflow in your installed interface.
5. Run the platform’s security checks
Synology DSM
In DSM 7.4, firewall, Auto Block, and Account Protection are under Control Panel > Security. The version-specific DSM 7.4 User’s Guide also documents certificates and MFA options. Synology’s Security Advisor can scan settings, identify malware or vulnerable configuration, and flag unusual login activity. Run it after major configuration changes and review each finding instead of blindly applying every suggestion.
QNAP and other platforms
QNAP provides tools including QuFirewall and Malware Remover, while other vendors use different names or package sets. Treat these tools as checks and detection aids, not substitutes for removing exposure, limiting permissions, and maintaining recoverable backups. Confirm that a package is supported by your model before installing it.
6. Configure snapshots and an independent backup
Use snapshots for quick rollback
If your NAS supports snapshots, schedule them for the volumes that contain important files and define a retention policy that fits available capacity. A snapshot can help recover from accidental deletion or unwanted file changes, but it normally remains on the same storage system. A compromised administrator account, ransomware event, controller failure, or physical damage can affect both the live data and its snapshots.
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Rank #4
- Easily store and access 2TB to content on the go with the Seagate Portable Drive, a USB external hard drive
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
On QNAP systems, snapshots require a storage pool and volume. Other platforms have their own filesystem and capacity requirements, so check the model documentation before enabling them.
Keep a separate copy
Maintain at least one backup destination independent of the NAS. Vendor documentation names external storage, another NAS, and cloud storage as possible targets. Select a destination using these criteria:
| Destination | Physical separation | Recovery characteristics | Costs and constraints |
|---|---|---|---|
| External USB drive | Can be disconnected and stored separately from the NAS. | Fast local restores; versioning depends on the backup software and capacity. | One-time hardware cost; requires a rotation and safe-storage routine. |
| Another NAS at a different location | Can survive a local theft, fire, or power event if genuinely off-site. | Good for automated, versioned replication; restore speed depends on the link. | Requires second hardware, administration, and reliable connectivity. |
| Cloud storage | Normally off-site and provider-hosted. | Convenient remote recovery and versioning when the service supports it. | Recurring charges, upload bandwidth, region availability, and provider-account security. |
Encrypt backups when the platform and destination support it, protect the backup account with MFA, and keep at least one copy disconnected or otherwise protected from the same credentials that administer the NAS. Periodically restore a representative file or folder; a backup that has never been restored is an assumption, not a verified recovery plan.
RAID can help a system remain available after a disk failure, but it is not an independent backup. Treat redundancy and backup as separate controls.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
7. A practical hardening sequence
- Inventory access: list every router rule, UPnP mapping, remote-access feature, user, group, application, and enabled service.
- Close the perimeter: remove NAS port forwards, disable UPnP mapping, confirm the NAS is not in a DMZ, and turn off remote access you do not need.
- Secure recovery access: create and test a named administrator, then disable the default administrator where supported. Store recovery codes for MFA securely.
- Apply least privilege: create individual accounts, remove stale users, and review share and application permissions.
- Enable defenses: turn on MFA, failed-login blocking or account protection, firewall rules, and security notifications.
- Reduce services: remove unknown packages and disable unused Telnet, FTP, SSH, and similar services after checking dependencies.
- Patch: update firmware and applications, then run the platform’s security-advisor or malware-scan tools.
- Protect recovery: schedule snapshots, configure a separate backup destination, set retention, and perform a test restore.
8. Troubleshoot common problems without weakening security
You locked yourself out
Use the platform’s documented local recovery procedure or a second administrator account. Do not solve a lockout by re-enabling public port forwarding. After recovery, rotate affected credentials, review login logs, and regenerate MFA recovery codes if they may have been exposed.
Best Value
- Massive capacity, up to 22TB capacity. (1TB = one trillion bytes. Actual user capacity may be less depending on operating environment.).Specific uses: Personal
- Includes software for device management and backup with password protection (Download and installation required. Terms and conditions apply. User account registration may be required.)
- 256-bit AES hardware encryption
- SuperSpeed USB (5 Gbps); USB 2.0 compatible
- Trusted storage built with WD reliability
A remote connection stopped working
First verify whether the VPN or relay client is connected and whether the NAS service is listening on the local network. Check router and NAS firewall rules, certificate validity, DNS, and account permissions. Avoid opening a new public port as a quick fix; use the supported VPN or relay path and restrict it to the users who need it.
Snapshots consume too much space
Review snapshot frequency and retention, remove obsolete versions according to your recovery needs, and reserve capacity for normal file growth. Do not delete the separate backup merely to make room for snapshots; they protect against different failure modes.
The NAS has no more security updates
Disconnect it from the public internet immediately, restrict local access, migrate data to a supported platform, and verify that your independent backup can be restored. Unsupported firmware should not be treated as safe simply because the NAS is behind a router.
Recommended Free Tools
9. Recheck settings after changes
After a firmware upgrade, router replacement, new application install, or household-user change, repeat the exposure and permission review. Confirm that UPnP has not recreated a port mapping, that MFA still works, that notifications arrive, and that a recent backup and snapshot are visible. Vendor interfaces evolve, so use documentation for the exact model and release rather than copying a path from another product generation.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
