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For a reliable recovery, preserve both the Nginx configuration files and the Nginx UI data/configuration directory. Nginx UI’s built-in history can restore earlier versions of managed configuration, while its encrypted export is intended for deployment and recovery; keep a copy of that export somewhere independent of the host. First identify your installation’s actual paths, then export or copy the required data and verify it after restoration.
What Nginx UI backs up—and what it may not
Nginx UI describes two different safeguards: automatic configuration backups after changes, with version comparison and restore capabilities, and encrypted exports of Nginx and Nginx UI configurations for deployment or recovery. The project README does not describe the automatic history as an off-host disaster-recovery copy. Treat it as useful in-application history, not a substitute for retaining an export or filesystem backup outside the machine.
A recovery copy should account for both the Nginx configuration tree and Nginx UI’s own data/configuration. The project’s restore advisory refers to an export containing inner nginx-ui.zip and nginx.zip archives. Do not assume that either the export or copied directories include every dependency on the host: certificates, private keys, scripts, external include files, DNS settings, and other referenced resources may be stored elsewhere.
Identify the paths for your installation
Do not assume every installation uses the same locations. Nginx UI’s getting-started guide documents installation-specific paths and, for Docker, demonstrates that Nginx and UI data can be mounted separately. Record the actual host paths and any overrides before making a backup.
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- Docker: The documented example mounts
/mnt/user/appdata/nginxat/etc/nginxand/mnt/user/appdata/nginx-uiat/etc/nginx-ui. Back up the host-side directories that are actually mounted in your deployment. - Linux installation script: The guide gives
/usr/local/etc/nginx-uias the default data path for the first-run secret, or$DATA_PATHwhen that setting is overridden. Confirm the configured path for your installation. - Homebrew or Windows Winget: The guide describes platform-specific app-data/configuration locations; Winget’s location is beside
app.ini. Follow the guide and your local configuration rather than applying a Linux or Docker path.
Nginx UI follows a Debian-style web-server configuration layout: created site files go in sites-available, and enabled sites are represented by symlinks in sites-enabled. The guide notes that other distributions may require adapting the nginx.conf include paths to that layout. Check the guide’s layout guidance and inspect your own includes before relying on a copied tree.
Make a backup before a change or migration
- Record the recovery context. Note the Nginx UI version, installation method, Nginx configuration root, UI data/configuration path, and any separately mounted or externally referenced files. This makes it possible to identify where the copy came from and what it needs to be restored alongside.
- Use Nginx UI’s export feature. Export the Nginx and Nginx UI configurations using the interface available in your installed version. The project advertises encrypted configuration export for deployment and recovery. Retain the resulting archive securely; it contains sensitive configuration material.
- Keep an independent copy. Store the export somewhere other than the host being protected—for example, in an access-controlled offsite backup location. This is general backup practice, not a Nginx UI-integrated storage service. Do not rely solely on an archive left on the same server.
- Optionally copy the underlying directories as well. Back up the actual Nginx configuration tree and Nginx UI data/configuration directory identified in the previous section, preserving their directory structure and relevant file permissions. This provides a filesystem-level recovery option in addition to the application export.
- Record what is outside those paths. Make a separate inventory or backup of referenced certificates, keys, include files, scripts, and other host-specific dependencies if your configuration uses them. The reviewed project documentation does not promise that every such dependency is included in the export.
Choose the right recovery copy
| Recovery option | Useful for | Important limit |
|---|---|---|
| Nginx UI automatic configuration history | Comparing and restoring earlier managed configuration versions after changes. | The project describes in-application history, not an independent off-host disaster-recovery copy. |
| Encrypted Nginx UI export | Deployment or recovery using an export of Nginx and Nginx UI configurations. | Keep it securely and independently; do not assume it contains external host dependencies. |
| Filesystem copy of both relevant paths | Recovering the Nginx configuration tree and UI data/configuration from host-level backups. | Paths vary by installation, and separate mounts or dependencies must be accounted for. |
Restore safely
Archive restoration is security-sensitive. Before restoring an export, check the installed Nginx UI version and the project’s current security advisories. The maintainer’s March 28, 2026 advisory says versions through 2.3.3 were affected by backup archive tampering and identifies 2.3.4 as patched. The project also published a separate advisory describing a restore path that overwrites app.ini. Consult the current advisories and release information before using an archive; encryption or possession of a token alone does not establish that an archive is trustworthy.
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- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
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- 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 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.
- Confirm the target installation and version. Identify its Nginx UI data path and Nginx configuration root. Review current project security advisories before using the restore function.
- Preserve the current state. Before replacing configuration or restoring application data, take a fresh copy of the target’s current Nginx and Nginx UI paths. This gives you a rollback point if the restore is incomplete or unsuitable.
- Restore using the matching Nginx UI workflow. Use the export/restore controls provided by your installed version and follow its prompts. Avoid manually extracting archive contents over a running installation unless the project’s instructions for that version explicitly call for it.
- Check the resulting paths and site links. Confirm that the restored
nginx.confincludes the directories actually present on the host and that site files and enabled-site symlinks are in the expected locations. If you use a non-Debian layout, adapt includes as needed. - Test before relying on the restored configuration. Run the configuration test and reload Nginx using the normal workflow for your installation. Nginx UI says it tests configuration and reloads Nginx after saves, but a restore should still be checked on the target host.
- Check referenced resources and application operation. Verify that certificates, keys, external include files, and any other dependencies are present and readable, then confirm that Nginx UI can manage the restored configuration.
Common recovery problems
- The UI opens, but sites are missing: Check that you restored the Nginx configuration tree as well as UI data, and inspect whether the expected
sites-availablefiles andsites-enabledsymlinks exist. - Nginx reports missing files or include paths: Compare the restored
nginx.confinclude directives with the target’s actual directory layout. A distribution-specific layout may differ from Nginx UI’s Debian-style convention. - The configuration test fails because a referenced file is absent: Find the missing certificate, key, include, or other resource in the configuration and restore it from its own backup. The Nginx/UI configuration copy may not include it.
- The archive is old, unexpected, or from an unknown source: Do not restore it until you have checked its origin and reviewed current security advisories for your installed version. Keep the target’s pre-restore copy intact.
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