diff --git a/server/db-schema-check.js b/server/db-schema-check.js
index c30a2ea..5218975 100644
--- a/server/db-schema-check.js
+++ b/server/db-schema-check.js
@@ -69,7 +69,6 @@ const SCHEMA = {
         latency_target VARCHAR(255),
         icp_filing VARCHAR(255),
         ps_filing VARCHAR(255),
-        network_data_sources TEXT,
         show_server_ip TINYINT(1) DEFAULT 0,
         ip_metric_name VARCHAR(100) DEFAULT NULL,
         ip_label_name VARCHAR(100) DEFAULT 'address',
@@ -101,8 +100,7 @@ const SCHEMA = {
       { name: 'latency_target', sql: "ALTER TABLE site_settings ADD COLUMN latency_target VARCHAR(255) AFTER latency_dest" },
       { name: 'icp_filing', sql: "ALTER TABLE site_settings ADD COLUMN icp_filing VARCHAR(255) AFTER latency_target" },
       { name: 'ps_filing', sql: "ALTER TABLE site_settings ADD COLUMN ps_filing VARCHAR(255) AFTER icp_filing" },
-      { name: 'network_data_sources', sql: "ALTER TABLE site_settings ADD COLUMN network_data_sources TEXT AFTER ps_filing" },
-      { name: 'show_server_ip', sql: "ALTER TABLE site_settings ADD COLUMN show_server_ip TINYINT(1) DEFAULT 0 AFTER network_data_sources" },
+      { name: 'show_server_ip', sql: "ALTER TABLE site_settings ADD COLUMN show_server_ip TINYINT(1) DEFAULT 0 AFTER ps_filing" },
       { name: 'ip_metric_name', sql: "ALTER TABLE site_settings ADD COLUMN ip_metric_name VARCHAR(100) DEFAULT NULL AFTER show_server_ip" },
       { name: 'ip_label_name', sql: "ALTER TABLE site_settings ADD COLUMN ip_label_name VARCHAR(100) DEFAULT 'address' AFTER ip_metric_name" },
       { name: 'custom_metrics', sql: "ALTER TABLE site_settings ADD COLUMN custom_metrics JSON DEFAULT NULL AFTER ip_label_name" }
diff --git a/server/index.js b/server/index.js
index acef9c3..5624b65 100644
--- a/server/index.js
+++ b/server/index.js
@@ -164,6 +164,16 @@ async function requireServerDetailsAccess(req, res, next) {
     const settings = await getSiteSettingsRow();
     req.siteSettings = settings; // Store for later use (e.g. IP stripping)
     
+    // 1. Mandatory source validation for detail access
+    const sourceName = req.query.source;
+    if (sourceName) {
+      const [sources] = await db.query('SELECT is_detail_source FROM prometheus_sources WHERE name = ?', [sourceName]);
+      if (sources.length === 0 || !sources[0].is_detail_source) {
+        return res.status(403).json({ error: '该数据源已禁用详情查看权限' });
+      }
+    }
+
+    // 2. Global login requirement check
     const requiresLogin = settings.require_login_for_server_details !== undefined
       ? !!settings.require_login_for_server_details
       : true;
@@ -175,7 +185,7 @@ async function requireServerDetailsAccess(req, res, next) {
     return requireAuth(req, res, next);
   } catch (err) {
     console.error('Server details access check failed:', err);
-    return res.status(500).json({ error: 'Failed to verify detail access' });
+    return res.status(500).json({ error: '权限验证失败' });
   }
 }
 
@@ -932,7 +942,7 @@ app.post('/api/settings', requireAuth, async (req, res) => {
     const { 
       page_name, show_page_name, title, logo_url, logo_url_dark, favicon_url, 
       default_theme, show_95_bandwidth, p95_type, require_login_for_server_details,
-      icp_filing, ps_filing, network_data_sources, show_server_ip, ip_metric_name, ip_label_name, custom_metrics
+      icp_filing, ps_filing, show_server_ip, ip_metric_name, ip_label_name, custom_metrics
     } = req.body;
 
     // 3. Prepare parameters, prioritizing body but falling back to current
@@ -966,9 +976,9 @@ app.post('/api/settings', requireAuth, async (req, res) => {
         id, page_name, show_page_name, title, logo_url, logo_url_dark, favicon_url, 
         default_theme, show_95_bandwidth, p95_type, require_login_for_server_details,
         blackbox_source_id, latency_source, latency_dest, latency_target, 
-        icp_filing, ps_filing, network_data_sources, show_server_ip, ip_metric_name, ip_label_name,
+        icp_filing, ps_filing, show_server_ip, ip_metric_name, ip_label_name,
         custom_metrics
-      ) VALUES (1, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) 
+      ) VALUES (1, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) 
       ON DUPLICATE KEY UPDATE 
         page_name = VALUES(page_name), 
         show_page_name = VALUES(show_page_name),
@@ -986,7 +996,6 @@ app.post('/api/settings', requireAuth, async (req, res) => {
         latency_target = VALUES(latency_target),
         icp_filing = VALUES(icp_filing),
         ps_filing = VALUES(ps_filing),
-        network_data_sources = VALUES(network_data_sources),
         show_server_ip = VALUES(show_server_ip),
         ip_metric_name = VALUES(ip_metric_name),
         ip_label_name = VALUES(ip_label_name),