```

### Importing Configuration

**Via Admin UI**:
1. **System > Backup > Upload**
2. Select `fess*.json` file
3. Click **Import**

**Via API**:
```bash
curl -X POST "http://localhost:8080/api/admin/backup/upload" \
  -u admin:admin \
  -F "file=@fess-config-backup.json"
```

### System Properties

Critical system settings in `system.properties`:

```properties

import jakarta.annotation.Resource;

/**
 * Admin action for Backup management.
 *
 */
public class AdminBackupAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminBackupAction() {
        super();
    }

    /**
     * The role for this action.
     */
    public static final String ROLE = "admin-backup";

 */
package org.codelibs.fess.app.web.admin.backup;

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form class for backup file upload.
 * This form handles file uploads for backup and restore operations.
 */
public class UploadForm {

    /**
     * The backup file to be uploaded.
     */
    @Required

 * will be constant across algorithms).
 *
 * @author Pete Gillin
 * @since 20.0
 */
@NullUnmarked
enum QuantilesAlgorithm {

  /**
   * Sorts the dataset, and picks values from it. When computing multiple quantiles, we sort once
   * and pick multiple values.
   */
  SORTING {

    @Override
    double singleQuantile(int index, int scale, double[] dataset) {
      Arrays.sort(dataset);

    }

    /**
     * Downloads a specific backup file by ID.
     * Supports various backup formats including system properties, bulk data, and NDJSON logs.
     *
     * @param id the backup file ID to download
     * @return stream response containing the backup file data
     */
    // GET /api/admin/backup/file/{id}
    @Execute
    public StreamResponse get$file(final String id) {

    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="log"/>
        <jsp:param name="menuType" value="backup"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">

							<p><la:message key="labels.menu_search_list" /></p>
						</a></li></c:if>

					<c:if test="${fe:permission('admin-backup-view')}">
					<li class="nav-item">
						<a href="${fe:url('/admin/backup/')}" class="nav-link <c:if test="${param.menuType=='backup'}">active</c:if>" <c:if test="${param.menuType=='backup'}">aria-current="page"</c:if>>
							<i class='fa fa-genderless nav-icon' aria-hidden="true"></i>

    /**
     * Represents an API response containing a list of backup files.
     */
    public static class ApiBackupFilesResponse extends ApiResponse {
        /**
         * The list of backup files, where each file is represented by a map of strings.
         */
        protected List<Map<String, String>> files;
        /**
         * The total number of backup files.
         */
        protected long total = 0;

3173          ; mapped                 ; 1120          # 1.1  HANGUL LETTER PIEUP-TIKEUT
3174          ; mapped                 ; 1122          # 1.1  HANGUL LETTER PIEUP-SIOS-KIYEOK
3175          ; mapped                 ; 1123          # 1.1  HANGUL LETTER PIEUP-SIOS-TIKEUT
3176          ; mapped                 ; 1127          # 1.1  HANGUL LETTER PIEUP-CIEUC

labels.menu_wizard=Wizard
labels.menu_crawl_config=General
labels.menu_scheduler_config=Scheduler
labels.menu_dashboard_config=Dashboard
labels.menu_design=Page Design
labels.menu_dict=Dictionary
labels.menu_data=Backup/Restore
labels.menu_crawl=Crawler
labels.menu_web=Web
labels.menu_file_system=File System
labels.menu_data_store=Data Store
labels.menu_label_type=Label
labels.menu_key_match=Key Match