diff --git a/client/src/app/about/about.component.html b/client/src/app/about/about.component.html
index bcb4ed2be..bad90d161 100644
--- a/client/src/app/about/about.component.html
+++ b/client/src/app/about/about.component.html
@@ -13,14 +13,26 @@
     <div class="section-title">Terms</div>
 
     <div [innerHTML]="termsHTML"></div>
+  </div>
 
-    <div *ngIf="userVideoQuota !== -1;else noQuota">
-      This instance provides a baseline quota of {{ userVideoQuota | bytes: 0 }} space for the videos of its users.
+  <div class="signup">
+    <div class="section-title">Signup</div>
+
+    <div *ngIf="isSignupAllowed">
+      User registration is allowed and
+
+      <ng-template [ngIf]="userVideoQuota !== -1">
+        this instance provides a baseline quota of {{ userVideoQuota | bytes }} space for the videos of its users.
+      </ng-template>
+
+      <ng-template [ngIf]="userVideoQuota === -1">
+        this instance provides unlimited space for the videos of its users.
+      </ng-template>
+    </div>
+
+    <div *ngIf="isSignupAllowed === false">
+      User registration is currently not allowed.
     </div>
-    
-    <ng-template #noQuota>
-      This instance provides unlimited space for the videos of its users.
-    </ng-template>
   </div>
 
   <div id="p2p-privacy">
diff --git a/client/src/app/about/about.component.scss b/client/src/app/about/about.component.scss
index 09e9c68cb..2a22b9528 100644
--- a/client/src/app/about/about.component.scss
+++ b/client/src/app/about/about.component.scss
@@ -7,6 +7,6 @@
   margin-bottom: 5px;
 }
 
-.description, .terms {
+.description, .terms, .signup {
   margin-bottom: 30px;
 }
diff --git a/client/src/app/about/about.component.ts b/client/src/app/about/about.component.ts
index 7edc013e1..2fd48f0d3 100644
--- a/client/src/app/about/about.component.ts
+++ b/client/src/app/about/about.component.ts
@@ -27,6 +27,10 @@ export class AboutComponent implements OnInit {
     return this.serverService.getConfig().user.videoQuota
   }
 
+  get isSignupAllowed () {
+    return this.serverService.getConfig().signup.allowed
+  }
+
   ngOnInit () {
     this.serverService.getAbout()
       .subscribe(
diff --git a/server/controllers/api/config.ts b/server/controllers/api/config.ts
index 8d7fc8cf1..88f047adc 100644
--- a/server/controllers/api/config.ts
+++ b/server/controllers/api/config.ts
@@ -117,14 +117,17 @@ async function deleteCustomConfig (req: express.Request, res: express.Response,
 async function updateCustomConfig (req: express.Request, res: express.Response, next: express.NextFunction) {
   const toUpdate: CustomConfig = req.body
 
-  // Need to change the videoQuota key a little bit
-  const toUpdateJSON = omit(toUpdate, 'videoQuota')
+  // Force number conversion
+  toUpdate.cache.previews.size = parseInt('' + toUpdate.cache.previews.size, 10)
+  toUpdate.signup.limit = parseInt('' + toUpdate.signup.limit, 10)
+  toUpdate.user.videoQuota = parseInt('' + toUpdate.user.videoQuota, 10)
+  toUpdate.transcoding.threads = parseInt('' + toUpdate.transcoding.threads, 10)
+
+  // camelCase to snake_case key
+  const toUpdateJSON = omit(toUpdate, 'user.videoQuota', 'instance.defaultClientRoute', 'instance.shortDescription')
   toUpdateJSON.user['video_quota'] = toUpdate.user.videoQuota
   toUpdateJSON.instance['default_client_route'] = toUpdate.instance.defaultClientRoute
   toUpdateJSON.instance['short_description'] = toUpdate.instance.shortDescription
-  delete toUpdate.user.videoQuota
-  delete toUpdate.instance.defaultClientRoute
-  delete toUpdate.instance.shortDescription
 
   await writeFilePromise(CONFIG.CUSTOM_FILE, JSON.stringify(toUpdateJSON, undefined, 2))