diff --git a/EXE_Redis.cpp b/EXE_Redis.cpp
index 7d88629..1830f17 100644
--- a/EXE_Redis.cpp
+++ b/EXE_Redis.cpp
@@ -35,8 +35,14 @@ using namespace std ;
 // ---------------------------------------------------------------------------
 // Definizione variabili generali Redis
 // ---------------------------------------------------------------------------
-static int REDIS_MIN_DB = 0 ;
-static int REDIS_MAX_DB = 15 ;
+static const int REDIS_MIN_DB = 0 ;
+static const int REDIS_MAX_DB = 15 ;
+static const int DEFAULT_PORT = 6379 ;
+static const int DEFAULT_SENTINEL_MASTER_PORT = 26379 ;
+static const string DEFAULT_USER = "default" ;
+static const int DEFAULT_DATABASE = 0 ;
+static const int DEFAULT_TIMEOUT = 15000 ;   // [ms]
+static const int DEFAULT_ALIVE_TIME = 180 ;  // [s]
 
 // Contesto Sincrono
 static redisContext* s_pRedisContext = nullptr ;
@@ -45,6 +51,7 @@ static redisAsyncContext* s_pRedisAsyncSubContext = nullptr ;
 static redisAsyncContext* s_pRedisAsyncPubContext = nullptr ;
 static atomic<int> s_nPendingDataBase = REDIS_MIN_DB ;      // Default
 static string s_sPassword = "" ;                            // Default
+static string s_sUser = DEFAULT_USER ;                      // Default
 static atomic<bool> s_bSubConnected = false ;
 static atomic<bool> s_bPubConnected = false ;
 static atomic<bool> s_bPubLoopRunning = false ;
@@ -61,27 +68,22 @@ static const string KEY_TYPE_ZSET = "zset" ;         // non usato
 static const string KEY_TYPE_JSON = "ReJSON-RL" ;    // non usato, disponibile se versione >= 8 ( noi usiamo la 6)
 
 // struttura per parametri della stringa di Connessione
-static const int DEFAULT_PORT = 6379 ;
-static const int DEFAULT_SENTINEL_MASTER_PORT = 26379 ;
-static const int DEFAULT_DATABASE = 0 ;
-static const int DEFAULT_TIMEOUT = 15000 ;   // [ms]
-static const int DEFAULT_ALIVE_TIME = 180 ;  // [s]
 struct RedisConnectionInfo {
 
-   string sHost, sServiceName, sPassword ;
+   string sHost, sServiceName, sUser, sPassword ;
    int nPort, nDefaultDataBase, nKeepAlive, nConnectTimeout, nSyncTimeout, nAsyncTimeout ;
    bool bAbortConnect, bSsl, bAllowAdmin ;
 
    RedisConnectionInfo() {
-      sHost = "" ; sServiceName = "" ; sPassword = "" ;
+      sHost = "" ; sServiceName = "" ; sUser = DEFAULT_USER ; sPassword = "" ;
       nPort = DEFAULT_PORT ; nDefaultDataBase = DEFAULT_DATABASE ; nKeepAlive = DEFAULT_ALIVE_TIME ;
       nConnectTimeout = DEFAULT_TIMEOUT ; nSyncTimeout = DEFAULT_TIMEOUT ; nAsyncTimeout = DEFAULT_TIMEOUT ;
       bAbortConnect = false ; bSsl = false ; bAllowAdmin = false ;
    } ;
-   RedisConnectionInfo( string sMyHost, string sMyServiceName, string sMyPassword, int nMyPort,
+   RedisConnectionInfo( string sMyHost, string sMyServiceName, string sMyUser, string sMyPassword, int nMyPort,
                         int nMyDefaultDataBase, int dMyKeepAlive, int dMyConnectTimeout, int dMySyncTimeout,
                         int dMyAsyncTimeout, bool bMyAbortConnect, bool bMySsl, bool bMyAllowAdmin)
-      : sHost( sMyHost), sServiceName( sMyServiceName), sPassword( sMyPassword), nPort( nMyPort),
+      : sHost( sMyHost), sServiceName( sMyServiceName), sUser( sMyUser), sPassword( sMyPassword), nPort( nMyPort),
         nDefaultDataBase( nMyDefaultDataBase), nKeepAlive( dMyKeepAlive), nConnectTimeout( dMyConnectTimeout),
         nSyncTimeout( dMySyncTimeout), nAsyncTimeout( dMyAsyncTimeout), bAbortConnect( bMyAbortConnect),
         bSsl( bMySsl), bAllowAdmin( bMyAllowAdmin) {}
@@ -124,6 +126,7 @@ GetParamsFromConnectionString( const string& sConnection, RedisConnectionInfo& C
   // Recupero i parametri ( rimuovo tutti gli spazi )
    sParams.erase( remove( sParams.begin(), sParams.end(), ' '), sParams.end()) ;
    GetValInNotes( sParams, "serviceName", ",", ConnectionInfo.sServiceName) ;
+   GetValInNotes( sParams, "user", ",", ConnectionInfo.sUser) ;
    GetValInNotes( sParams, "password", ",", ConnectionInfo.sPassword) ;
    GetValInNotes( sParams, "DefaultDatabase", ",", ConnectionInfo.nDefaultDataBase) ;
    GetValInNotes( sParams, "keepAlive", ",", ConnectionInfo.nKeepAlive) ;
@@ -233,7 +236,7 @@ ExeRedisConnect( const string& sConnection)
 
   // Verifico se richiesta autenticazione
    if ( ! ConnectionInfo.sPassword.empty()) {
-      redisReply* reply = ( redisReply*)redisCommand( s_pRedisContext, "AUTH %s", ConnectionInfo.sPassword.c_str()) ;
+      redisReply* reply = ( redisReply*)redisCommand( s_pRedisContext, "AUTH %s %s", ConnectionInfo.sUser.c_str(), ConnectionInfo.sPassword.c_str()) ;
       if ( reply == nullptr  ||  reply->type == REDIS_REPLY_ERROR) {
          LOG_INFO(GetCmdLogger(), "Error : Authentication failed") ;
          if ( reply == nullptr)
@@ -638,10 +641,28 @@ GetPendingDataBase()
    return s_nPendingDataBase ;
 }
 
+// ---------------------------------------------------------------------------
+// Funzione per Memorizzare l'utente di autenticazione [Callback]
+// ---------------------------------------------------------------------------
+static void
+SetPendingUser( string sUsr)
+{
+   s_sUser = sUsr ;
+}
+
+// --------------------------------------------------------------------------
+// Funzione per ottenere l'utente di autenticazione [Callback]
+// --------------------------------------------------------------------------
+static string
+GetPendingUser()
+{
+   return s_sUser ;
+}
+
 // ---------------------------------------------------------------------------
 // Funzione per Memorizzare la Password di autenticazione [Callback]
 // ---------------------------------------------------------------------------
-static bool
+static void
 SetPendingPassword( string sPsw)
 {
    s_sPassword = sPsw ;
@@ -709,8 +730,10 @@ ExeRedisAsyncConnect( const string& sConnection)
    if ( s_pRedisAsyncPubContext != nullptr  ||  s_pRedisAsyncSubContext != nullptr)
       ExeRedisAsyncDisconnect() ;
 
-  // Memorizzo il valore del DataBase, la selezione del DataBase deve avvenire una volta
-  // che la connessione sia effettivamente stabilita e corretta ( -> CallBack di connessione)
+  // Memorizzo il valore dello User, della Password e del DataBase, serviranno una volta
+  // che la connessione è effettivamente stabilita e corretta ( -> CallBack di connessione)
+   SetPendingUser( ConnectionInfo.sUser) ;
+   SetPendingPassword( ConnectionInfo.sPassword) ;
    if ( ! SetPendingDataBase( ConnectionInfo.nDefaultDataBase)) {
       LOG_INFO( GetCmdLogger(), "Error : DataBase number must be in range [0,15]") ;
       return false ;
@@ -796,7 +819,7 @@ ExeRedisAsyncConnect( const string& sConnection)
                      nullptr, "SELECT %d", GetPendingDataBase()
                   ) ;
                },
-               nullptr, "AUTH %s", GetPendingPassword().c_str()
+               nullptr, "AUTH %s %s", GetPendingUser().c_str(), GetPendingPassword().c_str()
             ) ;
          }
         // Se nessuna autenticazione -> SELECT
@@ -857,32 +880,7 @@ ExeRedisAsyncConnect( const string& sConnection)
                      nullptr, "SELECT %d", GetPendingDataBase()
                   ) ;
                },
-               nullptr, "SELECT %d", GetPendingDataBase()
-            ) ;
-           // --- Autenticazione richiesta
-            redisAsyncCommand(
-               s_pRedisAsyncSubContext,
-               []( redisAsyncContext* ctx, void* r, void*) {
-                  redisReply* reply = static_cast<redisReply*>( r) ;
-                  if ( reply == nullptr) {
-                    // --- Nulla
-                     LOG_INFO( GetCmdLogger(), "Error : Null Authentication reply") ;
-                     return ;
-                  }
-                  if ( reply->type == REDIS_REPLY_STATUS  &&  strcmp( reply->str, "OK") == 0) {
-                    // --- Valida
-                     LOG_INFO( GetCmdLogger(), "Valid Authentication for Pub connection")
-                     s_bPubConnected = true ;
-                     return ;
-                  }
-                  else {
-                    // --- Errore
-                     string sErrMsg = ( reply->str != nullptr ? reply->str : "Null asnwer") ;
-                     LOG_INFO( GetCmdLogger(), ( string{ "Error : Authentication -> "} + sErrMsg).c_str())
-                     return  ;
-                  }
-               },
-               nullptr, "AUTH %s", GetPendingPassword().c_str()
+               nullptr, "AUTH %s %s", GetPendingUser().c_str(), GetPendingPassword().c_str()
             ) ;
          }
         // Se nessuna autenticazione -> SELECT