diff --git a/spec/fixtures/defaults_config.yaml b/spec/fixtures/defaults_config.yaml
index 55f14fd..71b57fe 100644
--- a/spec/fixtures/defaults_config.yaml
+++ b/spec/fixtures/defaults_config.yaml
@@ -73,9 +73,10 @@ encoding:
   hextile_improved_compression: true
 
 server:
+  http:
+    httpd_directory: /usr/share/kasmvnc/www
   advanced:
     x_font_path: auto
-    httpd_directory: /usr/share/kasmvnc/www
     kasm_password_file: ~/.kasmpasswd
     x_authority_file: auto
   auto_shutdown:
diff --git a/unix/KasmVNC/CliOption.pm b/unix/KasmVNC/CliOption.pm
index 1088d4b..e696e2b 100644
--- a/unix/KasmVNC/CliOption.pm
+++ b/unix/KasmVNC/CliOption.pm
@@ -33,6 +33,16 @@ sub new {
 
         scalar $self->configValues() > 0;
       },
+      toStringSub => $args->{toStringSub}  || sub {
+        my $self = shift;
+        
+        my $derivedValue = $self->deriveValue();
+        if (defined($derivedValue)) {
+          return "-$self->{name} " . "'$derivedValue'";
+        }
+
+        "-$self->{name}";
+      },
       errors => []
     }, $class;
 }
@@ -75,12 +85,7 @@ sub toString {
 
   return unless $self->isActive();
 
-  my $derivedValue = $self->deriveValue();
-  if (defined($derivedValue)) {
-    return "-$self->{name} " . "'$derivedValue'";
-  }
-
-  "-$self->{name}";
+  $self->{toStringSub}->($self);
 }
 
 sub toValue {
diff --git a/unix/kasmvnc_defaults.yaml b/unix/kasmvnc_defaults.yaml
index a6a4211..a4997e2 100644
--- a/unix/kasmvnc_defaults.yaml
+++ b/unix/kasmvnc_defaults.yaml
@@ -15,6 +15,7 @@ network:
   udp:
     public_ip: auto
     port: auto
+    stun_server: auto
   ssl:
     pem_certificate: /etc/ssl/certs/ssl-cert-snakeoil.pem
     pem_key: /etc/ssl/private/ssl-cert-snakeoil.key
@@ -117,9 +118,13 @@ encoding:
   hextile_improved_compression: true
 
 server:
+  http:
+    headers:
+      - Cross-Origin-Embedder-Policy=require-corp
+      - Cross-Origin-Opener-Policy=same-origin
+    httpd_directory: /usr/share/kasmvnc/www
   advanced:
     x_font_path: auto
-    httpd_directory: /usr/share/kasmvnc/www
     kasm_password_file: ${HOME}/.kasmpasswd
     x_authority_file: auto
   auto_shutdown:
diff --git a/unix/vncserver b/unix/vncserver
index 96709cc..cae50ac 100755
--- a/unix/vncserver
+++ b/unix/vncserver
@@ -1962,11 +1962,32 @@ sub DefineConfigToCLIConversion {
         name => 'httpd',
         configKeys => [
           KasmVNC::ConfigKey->new({
-            name => "server.advanced.httpd_directory",
+            name => "server.http.httpd_directory",
             type => KasmVNC::ConfigKey::ANY
           })
         ]
     }),
+    KasmVNC::CliOption->new({
+        name => 'http-header',
+        configKeys => [
+          KasmVNC::ConfigKey->new({
+            name => "server.http.headers",
+            type => KasmVNC::ConfigKey::ANY
+          })
+        ],
+        toStringSub => sub {
+          $self = shift;
+
+          my @values = @{ listify($self->configValues()) };
+          
+          my $valuesStr = "";
+          foreach $value (@values) {
+            $valuesStr = $valuesStr . "-http-header '$value' "
+          }
+          chop($valuesStr);
+          return $valuesStr;
+        }
+    }),
     KasmVNC::CliOption->new({
         name => 'IgnoreClientSettingsKasm',
         configKeys => [
@@ -2199,6 +2220,24 @@ sub DefineConfigToCLIConversion {
         isActiveSub => sub {
           $self = shift;
 
+          my $value = $self->configValue();
+          isPresent($value) && $value ne 'auto';
+        }
+    }),
+    KasmVNC::CliOption->new({
+        name => 'StunServer',
+        configKeys => [
+          KasmVNC::ConfigKey->new({
+            name => "network.udp.stun_server",
+            validator => KasmVNC::PatternValidator->new({
+              pattern => qr/^(auto|\S+)$/,
+              errorMessage => "must be 'auto' or an IP address/hostname"
+            }),
+          })
+        ],
+        isActiveSub => sub {
+          $self = shift;
+
           my $value = $self->configValue();
           isPresent($value) && $value ne 'auto';
         }
@@ -2644,7 +2683,9 @@ sub ConfigToCmd {
   %optFromConfig = %{ ConstructOptFromConfig() };
 
   my @cmd = map { $cliArgMap{$_}->toString() } (keys %optFromConfig);
-  " " . join " ", @cmd;
+  my $cmdStr = " " . join " ", @cmd;
+
+  return $cmdStr;
 }
 
 sub ValidateConfig {