Preface: These aren’t objects in the “ object-oriented programming” sense of the word; instead, they are the building blocks on which PDF stands. There are nine types of objects: null, Boolean, integer, real, name, string, array, dictionary, and stream. Background: The Pegasus spy program created by NSO uses a zero-day vulnerability in Apple’s operating system…

Preface: You can use Citrix Hypervisor in an unlicensed state. However, you do not have access to some features. To access Citrix hypervisor is easy, go through XenCenter then input user ID and password. Background: Citrix Hypervisor is a high-performance hypervisor optimized for virtual app and desktop workloads and based on the Xen Project hypervisor.…

Preface: OpenStack Neutron is an SDN networking project focused on delivering networking-as-a-service (NaaS) in virtual compute environments. Neutron has replaced the original networking application program interface (API), called Quantum, in OpenStack. Background: The Web Server Gateway Interface (WSGI) is a simple calling convention for web servers to forward requests to web applications or frameworks written…

Preface: Windows RCE vulnerabilities have targeted Office users, and Microsoft urgently provides mitigation instructions. Background: The MS web browser COM control adds browsing, document, viewing, and downloading capabilities to your applications. Parsing and rendering of HTML documents in the WebBrowser control is handled by the MSHTML component which is an Active Document Dynamic HTML (DHTML)…

Preface: Dashboard, a popular design trend concept in the digital world.Dashboard, a popular design trend concept in the digital world.As the cloud and the Internet of Things force the network to evolve. Even operational work and network security can be managed in thesame dashboard. Background: Permission checks will typically use the authentication information in the…

Preface: Big data analysis can understand data by discovering trends and patterns. Machine learning can accelerate this process with the help of decision-making algorithms. It can classify incoming data, recognize patterns, and transform the data to do the technology development. In addition, it is a way to develop artificial intelligence. Background: What is Apache Zeppelin…

Preface: Cyberark provides the perfect authentication solution for enterprises. Because of their solutions, traditional authentication methods have evolved. However, there is no absolute anti-hacking solution in the world. The following explanation is to let you quickly understand this vulnerability. Even if this is not the right way, you will find out what they are doing.…

Preface: IEC 60870-5-104 protocol (aka IEC 104) is a part of IEC Telecontrol Equipment and Systems Standard IEC 60870-5 that provides a communication profile for sending basic telecontrol messages between two systems in electrical engineering and power system automation. Background: IEC 104 enables communication between control station and a substation via a standard TCP/IP network.…

Preface: Log event collection without data normalization , it is hard to managed. And you will be crazy. If you do not have log event aggregation and correlation functions. Your IT life will become not easy. Background: vRealize Log Insight delivers indexing and machine learning based Intelligent Grouping, to enable searching, for faster troubleshooting across…