diff --git a/ServidorTFG.pro.user b/ServidorTFG.pro.user
index 225bbb2..b894de6 100644
--- a/ServidorTFG.pro.user
+++ b/ServidorTFG.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.8.2, 2020-05-11T02:55:05. -->
+<!-- Written by QtCreator 4.8.2, 2020-05-16T01:41:19. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
diff --git a/conexion.cpp b/conexion.cpp
index 7fc9da0..f429cd2 100644
--- a/conexion.cpp
+++ b/conexion.cpp
@@ -75,7 +75,7 @@ void conexion_client(int client){
   }else{
       session_manager* session = new session_manager(client);
       while(session->validate_pass());
-      session->execute();
+      session->start_dialog();
       delete (session);
       close(client);
   }
diff --git a/conexion_ssl.cpp b/conexion_ssl.cpp
index aade996..5e79848 100644
--- a/conexion_ssl.cpp
+++ b/conexion_ssl.cpp
@@ -122,7 +122,7 @@ void conexion_client(SSL_CTX *ctx,int client){
       else {
           session_manager* session = new session_manager_ssl(ssl);
           while(!session->validate_pass());
-          session->execute();
+          session->start_dialog();
           //SSL_write(ssl,std::to_string(la->execute()).data() , sizeof (int));
           delete (session);
         }
diff --git a/data_acces.h b/data_acces.h
index 4410a5f..946057b 100644
--- a/data_acces.h
+++ b/data_acces.h
@@ -12,6 +12,7 @@ public:
   virtual std::list<std::string> get_pinfo()=0;
   virtual void write_install(std::string package, std::string user)=0;
   virtual void write_remove(std::string)=0;
+  virtual bool get_package_exists(std::string package)=0;
 };
 
 #endif // DATA_ACCES_H
diff --git a/msql_acces.cpp b/msql_acces.cpp
index 61a537d..f8b65f3 100644
--- a/msql_acces.cpp
+++ b/msql_acces.cpp
@@ -52,3 +52,14 @@ void msql_acces::write_remove(std::string package){
   pstmt->setString(1,package);
   pstmt->executeUpdate();
 }
+
+bool msql_acces::get_package_exists(std::string package){
+  sql::PreparedStatement *pstmt = con->prepareStatement("select count(id) from packages where name=?");
+  pstmt->setString(1,package);
+  sql::ResultSet *res = pstmt->executeQuery();
+  int ret=0;
+  while(res->next())
+    ret = res->getInt(1);
+
+  return ret>0;
+}
diff --git a/msql_acces.h b/msql_acces.h
index e264482..290deaf 100644
--- a/msql_acces.h
+++ b/msql_acces.h
@@ -16,6 +16,7 @@ public:
   std::list<std::string> get_pinfo();
   void write_install(std::string package, std::string user);
   void write_remove(std::string);
+  bool get_package_exists(std::string package);
 private:
   sql::Connection *con;
   sql::Driver *driver;
diff --git a/session_manager.cpp b/session_manager.cpp
index bffeb04..9d65c01 100644
--- a/session_manager.cpp
+++ b/session_manager.cpp
@@ -45,8 +45,9 @@ void session_manager::start_dialog(){
 }
 
 int session_manager::execute(){
-  char* n_package = new char[256];
-  this->read_data(n_package, 256);
+  char* n_package = new char[250];
+  this->read_data(n_package, 5);
+  this->read_data(n_package, 250);
   char* use_conf=new char[256];
   this->read_data(use_conf,2);
   if(strcmp(use_conf,"y")==0){
@@ -62,7 +63,9 @@ int session_manager::execute(){
   if(result=="err"){
       return -1;
     }else{
-      this->data->write_install(n_package, user);
+      if(!this->data->get_package_exists(result)){
+          this->data->write_install(result, user);
+        }
       return 1;
     }
 }
@@ -74,7 +77,7 @@ int session_manager::remove(){
   if(result=="err"){
       return -1;
     }else{
-      this->data->write_remove(n_package);
+      this->data->write_remove(result);
       return 1;
     }
 }