diff --git a/src/RaspAP/System/Sysinfo.php b/src/RaspAP/System/Sysinfo.php
index 0cb84f07..cfb641d3 100755
--- a/src/RaspAP/System/Sysinfo.php
+++ b/src/RaspAP/System/Sysinfo.php
@@ -102,15 +102,15 @@ class Sysinfo
         $revisions = array(
         '0002' => 'Raspberry Pi Model B Rev 1.0',
         '0003' => 'Raspberry Pi Model B Rev 1.0',
-        '0004' => 'Raspberry Pi Model B Rev 2.0 (256 MB)',
-        '0005' => 'Raspberry Pi Model B Rev 2.0 (256 MB)',
-        '0006' => 'Raspberry Pi Model B Rev 2.0 (256 MB)',
+        '0004' => 'Raspberry Pi Model B Rev 2.0',
+        '0005' => 'Raspberry Pi Model B Rev 2.0',
+        '0006' => 'Raspberry Pi Model B Rev 2.0',
         '0007' => 'Raspberry Pi Model A',
         '0008' => 'Raspberry Pi Model A',
         '0009' => 'Raspberry Pi Model A',
-        '000d' => 'Raspberry Pi Model B Rev 2.0 (512 MB)',
-        '000e' => 'Raspberry Pi Model B Rev 2.0 (512 MB)',
-        '000f' => 'Raspberry Pi Model B Rev 2.0 (512 MB)',
+        '000d' => 'Raspberry Pi Model B Rev 2.0',
+        '000e' => 'Raspberry Pi Model B Rev 2.0',
+        '000f' => 'Raspberry Pi Model B Rev 2.0',
         '0010' => 'Raspberry Pi Model B+',
         '0013' => 'Raspberry Pi Model B+',
         '0011' => 'Compute Module',
@@ -128,9 +128,9 @@ class Sysinfo
         'a220a0' => 'Compute Module 3',
         'a020a0' => 'Compute Module 3',
         'a02100' => 'Compute Module 3+',
-        'a03111' => 'Model 4B Revision 1.1 (1 GB)',
-        'b03111' => 'Model 4B Revision 1.1 (2 GB)',
-        'c03111' => 'Model 4B Revision 1.1 (4 GB)',
+        'a03111' => 'Raspberry Pi 4B Rev 1.1 (1 GB)',
+        'b03111' => 'Raspberry Pi 4B Rev 1.1 (2 GB)',
+        'c03111' => 'Raspberry Pi 4B Rev 1.1 (4 GB)',
         'a03140' => 'Compute Module 4 (1 GB)',
         'b03140' => 'Compute Module 4 (2 GB)',
         'c03140' => 'Compute Module 4 (4 GB)',
@@ -158,6 +158,8 @@ class Sysinfo
 
     /**
      * Determines if ad blocking is enabled and active
+     *
+     * @return bool $status
      */
     public function adBlockStatus(): bool
     {
@@ -171,5 +173,30 @@ class Sysinfo
         $status = $dnsmasq_state && $enabled ? true : false;
         return $status;
     }
+
+    /**
+     * Determines if a VPN interface is active
+     *
+     * @return string $interface
+     */
+    public function getActiveVpnInterface(): ?string
+    {
+        $output = shell_exec('ip a 2>/dev/null');
+        if (!$output) {
+            return null;
+        }
+        $vpnInterfaces = ['wg0', 'tun0', 'tailscale0'];
+
+        // interface must have an 'UP' status and an IP address
+        foreach ($vpnInterfaces as $interface) {
+            if (strpos($output, "$interface:") !== false) {
+                if (preg_match("/\d+: $interface: .*<.*UP.*>/", $output) &&
+                    preg_match("/inet\b.*$interface/", $output)) {
+                        return $interface;
+                }
+            }
+        }
+        return null;
+    }
 }