scada protocols

The previous article described how to customize the protocol for the application, so a friend would ask, I want to register multiple protocols for my app, different protocols to handle different things, can I? The answer is yes.method is mainly on the configuration manifest file, here I give an example, the sample application will register two protocols, respecti

The ports and protocols used by the Samba service:1) Port 137 (UDP)-NetBIOS name service; NMBD2) port 138 (UDP)-NetBIOS Datagram Service 3) port 139 (TCP)-File and print sharing, SMBD (SMB (Server Message Block) protocol, mainly used on LAN, file sharing protocol) 4) port 3 (TCP)-for LDAP (Active Directory Mode) 5) port 445 (TCP)-NetBIOS service uses this port in WinDOS 2000 and later versions (Common Internet File System , CIFS, which is the SMB prot

Https://en.wikipedia.org/wiki/Lists_of_network_protocols Protocol Stack:list of the network Protocol stacks Wifi/wimax protocols Bluetooth protocol Fibre Channel Network Protocols Internet Protocol Suite or TCP/IP model or TCP/IP stack OSI protocols family of information exchange standards developed jointly by the ISO and the ITU-T Routing

XMPP and xmpp protocolsXMPP-instant messaging technology Overview (IM -- Instant Messaging) supports real-time online conversations. If you want to send a message, you need to open a small window so that users and their friends can enter the information and both parties can see that there are many IM systems in the conversation content, for example, AOL, Yahoo IM, MSN, and QQ, the biggest difference lies in the implementation of their respective communication

Preface Since Richard Stallman founded Free Software found in 1985, open source has sprung up and has been developing in full swing. Small to a Java or JS component and a Linux operating system. Open-source software has evolved from only open-source software to more features such as innovation, compilation, fast, and elasticity. Of course, open-source freedom does not mean that there is no limit at all. Different open-source software has different open-source

A very important feature of Bluetooth is that all Bluetooth products do not need to implement all Bluetooth specifications. To make it easier to maintain compatibility between bluetooth devices, the profile is defined in the Bluetooth specification. Profile defines how a device implements a connection or application. You can understand profile as a connection layer or application layer protocol.(1) The Bluetooth host controller module, as the underlying layer of Bluetooth, is a typical hardware

Http://inthirties.com: 90/viewthread. jsp? Tid = 1396 frombbs = 1 Today, a former company colleague asked me about the types of open source protocols. Common open-source protocols include GPL, lgpl, Apache, and BSD. Some special Java open-source projects do not fully comply with the mainstream open-source protocols.Note. Therefore, when choosing your own technical framework and introducing open-source pac

HTTP vs TCP/IPthe TCP (transmission Control Protocol) and UDP (User Datagram Protocol) protocols belong toTransport Layeragreement. Where TCP provides data in an IP environmentReliable transmission, it provides services that includeData flowtransmission, reliability, effective flow control, full-duplex operation, and multiplexing. Through connection-oriented, end-to-end, and reliableData packagesent. Popularly said, it is to send the data in advance t

Here we will introduce the IPv6 network protocol. This protocol is an upgraded version of IPv4. However, at present, the Internet is in an excessive phase of Two-Protocol handover, which leads to an important problem-security. In this unstable situation, security vulnerabilities may easily occur. How can we prevent them? First, let's take a look at some basic knowledge about IPv6 network protocols. You may know what are the main factors driving IPv6 a

At present, the development of the routing protocol is very rapid, so I have studied the introduction of the routing protocol, here to share with you, hope to be useful to everyone. With the rapid development of the Internet, TCP/IP has become the mainstream protocol for data network interconnection. Vrouters running on various networks are responsible for controlling traffic that may be the most important information of this century. The collaboration between hundreds of vrouters is inseparable

For network security, this is a more complex structure and engineering. Many factors can affect our network environment. In the network, we define various network security protocols for effective protection. Next we will compare and analyze different protocols. SSL and IPSec (1) SSL protects the security of data transmitted on the transport layer. In addition, IPSec also protects the security of data packet

There are many small details about the routing protocol, which deserves our attention. There are also many categories that indicate the different functions of different routing protocols. Now we will talk about the routing information protocol. For more information about the specific functions and features of this protocol, refer to them. The routing information protocol was originally designed for Xerox PUP (PARC universal protocol). In 1981, the rou

This article mainly introduces the self-organizing network routing protocols used in the self-group network. This article gives some specific instructions on these protocols, I believe that reading this article will help you. The cluster head gateway switch routing (CGSR) protocol is designed based on the DSDV protocol and the hierarchical routing mechanism. CGSR uses the least clusterchange (LOC) algorithm

Application Layer functions and Protocols 1. In the application layer, software programs or processes access the network in two forms: applications and services. Applications can interact with us. Is the user software. If the device is a computer, the application is usually started by the user. Although there are many levels of support below, the application software provides interfaces between people and hardware. When you click the send button or pe

This article mainly introduces a simple WebSocket server that is compatible with the old and new Socket protocols in Python, if you need it, you can refer to the WebSocket technology introduced in HTML5 that needs to be used in a recent project. I thought it would be easy to handle it, who knows that there are a lot of troubles after the development is really started? although we are a long-experienced team in development and design, we have never bee

In the network, we usually use routers to allocate IP addresses. In the network protocol, the protocol that regulates the routing status is the routing selection protocol. Now let's take a look at the specific content of the routing protocol. First, let's take a look at its basic concepts and definitions. The routing selection protocol enables the router to dynamically broadcast and acquire paths and determine which paths are available for selection, and which one is the best path to transmit da

The network routing protocol is essential in the network. As a protocol for address management and allocation, there are many types of protocols. Next we will summarize several important routing protocols for you to explain. Generally, there are two typical routing Methods: Static Routing and dynamic routing ｡ Static Routing is a fixed route table set in a vro. Static Routing does not change unless the netw

objc_method_list *class_methods OBJC2_UNAVAILABLE; // 类方法列表 struct objc_protocol_list *protocols OBJC2_UNAVAILABLE; // 分类所实现的协议列表} This structure mainly contains the instance and class methods of the classification definition, where the Instance_methods list is a subset of the method list in Objc_class, and the Class_methods list is a subset of the meta-class method list.ProtocolProtocol is defined as follows:typedef struct objc_obj

objc_method_list *class_methods OBJC2_UNAVAILABLE; // 类方法列表 struct objc_protocol_list *protocols OBJC2_UNAVAILABLE; // 分类所实现的协议列表} This structure mainly contains the instance and class methods of the classification definition, where the Instance_methods list is a subset of the method list in Objc_class, and the Class_methods list is a subset of the meta-class method list.ProtocolProtocol is defined as follows:typedef struct objc_obj

Multicast routing is a good technology. It broadcasts data over the Internet. Unlike broadcast, due to broadcast storms, the router prohibits cross-route transmission of broadcast data. Multicast solves this problem. Currently, m$ software such as NetMeeting and WMS are widely used in multicast. Here we will discuss how to build your Linux into a multicast router.(Generally, gateways and routers do not support multicast data packets ). 1. Transmission Protocol Network Cameras provide many IP-b