diff --git a/db.js b/db.js
index 988b26a..73d1e1a 100644
--- a/db.js
+++ b/db.js
@@ -40,6 +40,10 @@ if (dbType === 'mysql' || dbType === 'mariadb') {
     // 2. ILIKE -> LIKE (MySQL LIKE is case-insensitive by default)
     translatedSql = translatedSql.replace(/\bILIKE\b/gi, 'LIKE');
 
+    // 2b. PostgreSQL regex ~* / ~ -> REGEXP
+    translatedSql = translatedSql.replace(/~\*/g, 'REGEXP');
+    translatedSql = translatedSql.replace(/~/g, 'REGEXP');
+
     // 3. PostgreSQL string concatenation '||' -> CONCAT(...) in ticket number generator
     translatedSql = translatedSql.replace(/md5\(random\(\)::text\s*\|\|\s*clock_timestamp\(\)::text\)/gi, 'MD5(CONCAT(RAND(), NOW()))');
 
diff --git a/public/css/style.css b/public/css/style.css
index 5b1972c..353a582 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -3062,4 +3062,32 @@ body {
   line-height: 1.2;
   margin: 0;
   white-space: pre;
+}
+
+/* Ricerca Spudorata - Info Modal / Popover & Regex */
+#spudorata-info-btn:hover {
+  background: var(--accent-primary) !important;
+  color: #ffffff !important;
+  box-shadow: 0 0 10px var(--accent-primary-glow);
+  transform: scale(1.08);
+}
+
+.spudorata-rules-popover {
+  animation: popoverFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+@keyframes popoverFadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(-6px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+#spudorata-regex-toggle:hover {
+  border-color: var(--accent-primary) !important;
+  background: var(--bg-card-hover) !important;
 }
\ No newline at end of file
diff --git a/public/js/views/ricercaSpudorata.js b/public/js/views/ricercaSpudorata.js
index 3f9740f..e131402 100644
--- a/public/js/views/ricercaSpudorata.js
+++ b/public/js/views/ricercaSpudorata.js
@@ -4,6 +4,7 @@
  */
 const RicercaSpudorataView = {
   searchTerm: '',
+  isRegex: false,
   cachedTickets: null,
   currentPage: 1,
   perPage: 50,
@@ -29,6 +30,10 @@ const RicercaSpudorataView = {
 
     const urlParams = new URLSearchParams((window.location.hash.split('?')[1]) || '');
     const qParam = urlParams.get('q');
+    const regexParam = urlParams.get('regex');
+    if (regexParam !== null) {
+      this.isRegex = regexParam === '1' || regexParam === 'true';
+    }
 
     if (qParam && qParam !== this.searchTerm) {
       this.renderContainer(container);
@@ -62,12 +67,54 @@ const RicercaSpudorataView = {
   renderContainer(container) {
     container.innerHTML = `
       <!-- Hero Text Search Area -->
-      <div class="ricerca-spudorata-hero" style="background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: var(--space-lg); margin-bottom: var(--space-lg); box-shadow: var(--shadow-md);">
+      <div class="ricerca-spudorata-hero" style="background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: var(--space-lg); margin-bottom: var(--space-lg); box-shadow: var(--shadow-md); position: relative;">
         <div style="display:flex; align-items:center; justify-content:space-between; margin-bottom: var(--space-sm); flex-wrap:wrap; gap:10px;">
           <div style="display:flex; align-items:center; gap: 10px;">
             <div style="display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; background: linear-gradient(135deg, rgba(235, 114, 110, 0.2), rgba(160, 65, 71, 0.3)); border-radius: 50%; color: var(--accent-primary); font-size:1.2rem; font-weight:bold;">🚀</div>
             <div>
-              <h2 style="margin:0; font-size:1.2rem; font-weight:700; color:var(--text-primary);">Ricerca Testuale Spudorata</h2>
+              <div style="display:flex; align-items:center; gap: 8px;">
+                <h2 style="margin:0; font-size:1.2rem; font-weight:700; color:var(--text-primary);">Ricerca Testuale Spudorata</h2>
+                <div style="position: relative; display: inline-flex; align-items: center;">
+                  <button type="button" id="spudorata-info-btn" aria-label="Informazioni sulle regole avanzate e Regex" style="background: rgba(79, 70, 229, 0.1); border: 1px solid rgba(79, 70, 229, 0.25); border-radius: 50%; width: 22px; height: 22px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; color: var(--accent-primary); padding: 0; transition: all 0.2s ease;">
+                    <svg viewBox="0 0 24 24" width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round">
+                      <circle cx="12" cy="12" r="10"></circle>
+                      <line x1="12" y1="16" x2="12" y2="12"></line>
+                      <line x1="12" y1="8" x2="12.01" y2="8"></line>
+                    </svg>
+                  </button>
+
+                  <!-- Modal / Popover indicazioni regole avanzate -->
+                  <div id="spudorata-info-modal" class="spudorata-rules-popover" style="display:none; position:absolute; top:calc(100% + 10px); left:0; width:460px; max-width:90vw; background:var(--bg-card); border:1px solid var(--border-light); border-radius:var(--radius-lg); box-shadow:0 12px 32px rgba(0,0,0,0.22); z-index:1100; padding:18px; font-size:0.85rem; color:var(--text-primary); backdrop-filter:blur(12px);">
+                    <div style="display:flex; align-items:center; justify-content:space-between; margin-bottom:12px; border-bottom:1px solid var(--border-subtle); padding-bottom:8px;">
+                      <div style="display:flex; align-items:center; gap:6px; font-weight:700; font-size:0.95rem; color:var(--accent-primary);">
+                        <span>💡</span>
+                        <span>Guida Ricerca & Regole Avanzate (Regex)</span>
+                      </div>
+                      <span style="font-size:0.75rem; color:var(--text-muted); background:var(--bg-tertiary); padding:2px 6px; border-radius:4px;">Regole avanzate</span>
+                    </div>
+
+                    <div style="line-height:1.45; color:var(--text-secondary); margin-bottom:12px;">
+                      Puoi cercare normalmente per parole chiave o attivare l'opzione <strong>Regex</strong> per ricerche con espressioni regolari (POSIX / JavaScript) sia sul database che sui filtri in cache.
+                    </div>
+
+                    <div style="background:var(--bg-tertiary); border:1px solid var(--border-subtle); border-radius:var(--radius-md); padding:10px 12px; margin-bottom:12px;">
+                      <div style="font-weight:600; color:var(--text-primary); margin-bottom:6px; font-size:0.82rem;">Esempi di espressioni regolari:</div>
+                      <ul style="margin:0; padding-left:18px; display:flex; flex-direction:column; gap:6px;">
+                        <li><code style="background:rgba(79,70,229,0.12); color:var(--accent-primary); padding:1px 5px; border-radius:3px; font-family:monospace;">vpn|firewall</code> — Trova ticket contenenti <em>vpn</em> <strong>oppure</strong> <em>firewall</em></li>
+                        <li><code style="background:rgba(79,70,229,0.12); color:var(--accent-primary); padding:1px 5px; border-radius:3px; font-family:monospace;">\b(errore|fatal)\b</code> — Trova parole esatte "errore" o "fatal"</li>
+                        <li><code style="background:rgba(79,70,229,0.12); color:var(--accent-primary); padding:1px 5px; border-radius:3px; font-family:monospace;">^INC-[0-9]+</code> — Ticket o codici che iniziano per "INC-" seguito da cifre</li>
+                        <li><code style="background:rgba(79,70,229,0.12); color:var(--accent-primary); padding:1px 5px; border-radius:3px; font-family:monospace;">host(name)?.*down</code> — Trova "host down" o "hostname down" anche con parole in mezzo</li>
+                        <li><code style="background:rgba(79,70,229,0.12); color:var(--accent-primary); padding:1px 5px; border-radius:3px; font-family:monospace;">\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}</code> — Trova indirizzi IP nel corpo o nell'oggetto</li>
+                      </ul>
+                    </div>
+
+                    <div style="font-size:0.78rem; color:var(--text-tertiary); display:flex; flex-direction:column; gap:4px;">
+                      <div>⚡ <strong>Case-insensitive:</strong> Le ricerche con Regex non distinguono automaticamente tra maiuscole e minuscole.</div>
+                      <div>⚡ <strong>Cache locale:</strong> Anche il campo <em>"Cerca in Cache"</em> rispetta la modalità Regex o il formato <code>/pattern/</code>.</div>
+                    </div>
+                  </div>
+                </div>
+              </div>
               <p style="margin:2px 0 0 0; font-size:0.82rem; color:var(--text-secondary);">
                 Esegui la ricerca nel testo sui ticket. I filtri applicati successivamente operano <strong>istantaneamente in cache locale</strong> senza fare nuove richieste al server.
               </p>
@@ -78,11 +125,19 @@ const RicercaSpudorataView = {
 
         <div style="display:flex; align-items:center; gap: var(--space-sm); flex-wrap:wrap; margin-top: var(--space-md);">
           <div style="position:relative; flex:1; min-width:300px;">
-            <input type="text" id="spudorata-search-input" class="form-input" placeholder="Cerca nel testo (oggetto, corpo, numero ticket, cliente)..." value="${App.escapeHtml(this.searchTerm)}" style="width:100%; height:42px; font-size:0.95rem; padding-left:14px; padding-right:36px; border-radius:var(--radius-md);" />
+            <input type="text" id="spudorata-search-input" class="form-input" placeholder="${this.isRegex ? 'Cerca con espressione regolare (es. vpn|firewall, ^INC-\\d+)...' : 'Cerca nel testo (oggetto, corpo, numero ticket, cliente)...'}" value="${App.escapeHtml(this.searchTerm)}" style="width:100%; height:42px; font-size:0.95rem; padding-left:14px; padding-right:36px; border-radius:var(--radius-md);" />
             <button id="spudorata-input-clear" style="position:absolute; right:10px; top:50%; transform:translateY(-50%); background:none; border:none; color:var(--text-muted); cursor:pointer; display:${this.searchTerm ? 'flex' : 'none'}; align-items:center; justify-content:center;" title="Cancella testo">
               ✕
             </button>
           </div>
+
+          <!-- Toggle Regex -->
+          <label id="spudorata-regex-toggle" style="display:inline-flex; align-items:center; gap:6px; cursor:pointer; user-select:none; height:42px; padding:0 12px; background:var(--bg-secondary); border:1px solid ${this.isRegex ? 'var(--accent-primary)' : 'var(--border-light)'}; border-radius:var(--radius-md); font-size:0.85rem; font-weight:600; color:${this.isRegex ? 'var(--accent-primary)' : 'var(--text-secondary)'}; transition:all 0.15s ease;" title="Abilita ricerca tramite Regular Expression">
+            <input type="checkbox" id="spudorata-regex-checkbox" ${this.isRegex ? 'checked' : ''} style="cursor:pointer; accent-color:var(--accent-primary);" />
+            <span style="font-family:monospace; font-size:0.95rem; font-weight:700;">.*</span>
+            <span>Regex</span>
+          </label>
+
           <button class="btn btn-primary" id="spudorata-search-btn" style="height:42px; padding:0 var(--space-xl); font-size:0.9rem; font-weight:600; min-width:130px; display:flex; align-items:center; justify-content:center; gap:6px;">
             <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" style="width:18px;height:18px;"><circle cx="11" cy="11" r="8"/><path d="M21 21l-4.35-4.35"/></svg>
             <span>Cerca</span>
@@ -194,6 +249,15 @@ const RicercaSpudorataView = {
       return;
     }
 
+    if (this.isRegex) {
+      try {
+        new RegExp(query);
+      } catch (e) {
+        Toast.error('Espressione regolare non valida: ' + e.message);
+        return;
+      }
+    }
+
     this.searchTerm = query;
     this.isFetching = true;
 
@@ -202,13 +266,14 @@ const RicercaSpudorataView = {
       resultsArea.innerHTML = `
         <div class="loading-screen" style="padding: 60px 0;">
           <div class="spinner"></div>
-          <p>Ricerca testuale nel server in corso per "${App.escapeHtml(query)}"...</p>
+          <p>Ricerca testuale ${this.isRegex ? 'con Regex ' : ''}nel server in corso per "${App.escapeHtml(query)}"...</p>
         </div>
       `;
     }
 
     try {
-      const data = await App.api(`/api/tickets?search=${encodeURIComponent(query)}&per_page=2000`);
+      const regexParam = this.isRegex ? '&is_regex=1' : '';
+      const data = await App.api(`/api/tickets?search=${encodeURIComponent(query)}${regexParam}&per_page=2000`);
       this.cachedTickets = data.tickets || [];
       this.otrsBaseUrl = data.otrsBaseUrl || '';
       this.hasSearched = true;
@@ -216,7 +281,7 @@ const RicercaSpudorataView = {
       this.selectedIds.clear();
       this.selectedOrder = [];
 
-      Toast.success(`${this.cachedTickets.length} ticket caricati in cache locale per "${query}"`);
+      Toast.success(`${this.cachedTickets.length} ticket caricati in cache locale per "${query}"${this.isRegex ? ' (Regex)' : ''}`);
       this.renderContainer(document.getElementById('view-container'));
       this.bindEvents();
       this.renderLocalResults();
@@ -361,8 +426,22 @@ const RicercaSpudorataView = {
     const s = Filters.state;
 
     if (s.sub_search) {
-      const q = String(s.sub_search).toLowerCase().trim();
-      if (q) {
+      const rawQ = String(s.sub_search).trim();
+      if (rawQ) {
+        let regexMatcher = null;
+        if (this.isRegex) {
+          try {
+            regexMatcher = new RegExp(rawQ, 'i');
+          } catch (e) {
+            // If invalid while typing, fallback or ignore
+          }
+        } else if (rawQ.startsWith('/') && rawQ.length > 2 && rawQ.endsWith('/')) {
+          try {
+            regexMatcher = new RegExp(rawQ.slice(1, -1), 'i');
+          } catch (e) {}
+        }
+
+        const qLower = rawQ.toLowerCase();
         list = list.filter(t => {
           const fields = [
             t.tn,
@@ -379,7 +458,10 @@ const RicercaSpudorataView = {
             t.customer_id,
             t.customer_user_id
           ];
-          return fields.some(f => f && String(f).toLowerCase().includes(q));
+          if (regexMatcher) {
+            return fields.some(f => f && regexMatcher.test(String(f)));
+          }
+          return fields.some(f => f && String(f).toLowerCase().includes(qLower));
         });
       }
     }
@@ -529,6 +611,78 @@ const RicercaSpudorataView = {
       });
     }
 
+    const regexCheckbox = document.getElementById('spudorata-regex-checkbox');
+    if (regexCheckbox) {
+      regexCheckbox.addEventListener('change', () => {
+        this.isRegex = regexCheckbox.checked;
+        const toggleLabel = document.getElementById('spudorata-regex-toggle');
+        if (toggleLabel) {
+          toggleLabel.style.borderColor = this.isRegex ? 'var(--accent-primary)' : 'var(--border-light)';
+          toggleLabel.style.color = this.isRegex ? 'var(--accent-primary)' : 'var(--text-secondary)';
+        }
+        if (searchInput) {
+          searchInput.placeholder = this.isRegex 
+            ? 'Cerca con espressione regolare (es. vpn|firewall, ^INC-\\d+)...' 
+            : 'Cerca nel testo (oggetto, corpo, numero ticket, cliente)...';
+          searchInput.focus();
+        }
+        // If we already have cached tickets, update the local filtered view immediately
+        if (this.hasSearched && this.cachedTickets) {
+          this.currentPage = 1;
+          this.renderLocalResults();
+        }
+      });
+    }
+
+    // Info button & hover modal
+    const infoBtn = document.getElementById('spudorata-info-btn');
+    const infoModal = document.getElementById('spudorata-info-modal');
+    if (infoBtn && infoModal) {
+      let closeTimeout = null;
+
+      const openModal = () => {
+        if (closeTimeout) {
+          clearTimeout(closeTimeout);
+          closeTimeout = null;
+        }
+        infoModal.style.display = 'block';
+      };
+
+      const closeModalWithDelay = () => {
+        if (closeTimeout) clearTimeout(closeTimeout);
+        closeTimeout = setTimeout(() => {
+          infoModal.style.display = 'none';
+        }, 250);
+      };
+
+      infoBtn.addEventListener('mouseenter', openModal);
+      infoBtn.addEventListener('mouseleave', closeModalWithDelay);
+
+      infoModal.addEventListener('mouseenter', () => {
+        if (closeTimeout) {
+          clearTimeout(closeTimeout);
+          closeTimeout = null;
+        }
+      });
+      infoModal.addEventListener('mouseleave', closeModalWithDelay);
+
+      // Also toggle on click for touch/mobile devices or explicit clicks
+      infoBtn.addEventListener('click', (e) => {
+        e.stopPropagation();
+        if (infoModal.style.display === 'block') {
+          infoModal.style.display = 'none';
+        } else {
+          openModal();
+        }
+      });
+
+      document.addEventListener('click', (e) => {
+        if (!infoBtn.contains(e.target) && !infoModal.contains(e.target)) {
+          infoModal.style.display = 'none';
+        }
+      });
+    }
+
     if (resetCacheBtn) {
       resetCacheBtn.addEventListener('click', () => {
         this.invalidateCache();
diff --git a/routes/tickets.js b/routes/tickets.js
index da7304d..048b5e6 100644
--- a/routes/tickets.js
+++ b/routes/tickets.js
@@ -212,20 +212,45 @@ router.get('/', async (req, res) => {
     }
     const searchTerm = search || sub_search;
     if (searchTerm) {
-      conditions.push(`(
-        t.title ILIKE $${paramIdx} OR 
-        t.tn ILIKE $${paramIdx} OR
-        EXISTS (
-          SELECT 1 FROM article art
-          LEFT JOIN article_data_mime adm ON art.id = adm.article_id
-          WHERE art.ticket_id = t.id AND (
-            adm.a_subject ILIKE $${paramIdx} OR
-            adm.a_body ILIKE $${paramIdx}
+      const isRegex = req.query.is_regex === 'true' || req.query.is_regex === '1';
+      if (isRegex) {
+        // Validate regex pattern to prevent DB syntax error
+        try {
+          new RegExp(searchTerm);
+        } catch (regexErr) {
+          return res.status(400).json({ error: `Espressione regolare non valida: ${regexErr.message}` });
+        }
+
+        conditions.push(`(
+          t.title ~* $${paramIdx} OR 
+          t.tn ~* $${paramIdx} OR
+          EXISTS (
+            SELECT 1 FROM article art
+            LEFT JOIN article_data_mime adm ON art.id = adm.article_id
+            WHERE art.ticket_id = t.id AND (
+              adm.a_subject ~* $${paramIdx} OR
+              adm.a_body ~* $${paramIdx}
+            )
           )
-        )
-      )`);
-      params.push(`%${searchTerm}%`);
-      paramIdx++;
+        )`);
+        params.push(searchTerm);
+        paramIdx++;
+      } else {
+        conditions.push(`(
+          t.title ILIKE $${paramIdx} OR 
+          t.tn ILIKE $${paramIdx} OR
+          EXISTS (
+            SELECT 1 FROM article art
+            LEFT JOIN article_data_mime adm ON art.id = adm.article_id
+            WHERE art.ticket_id = t.id AND (
+              adm.a_subject ILIKE $${paramIdx} OR
+              adm.a_body ILIKE $${paramIdx}
+            )
+          )
+        )`);
+        params.push(`%${searchTerm}%`);
+        paramIdx++;
+      }
     }
 
     const whereClause = conditions.length > 0