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Ubuntu18. 04 implementation of ROS UDP server communication This section describes the udp Server sending and receiving data. UDP communication belongs to frame transmission. In the process of frame transmission, there is no requirement for the order and arrival of messages, and no verification is carried out. Therefore, UDP belongs to unrelia ...

Hello, I'm 😎 I wrote an article on hydrology earlier< Obtain the ip address and mac address of all connected devices under the current LAN >But what I didn't expect was that I was on the hot list, which was also my first article on the hot list, and the reading volume soared instantly 💥. However, few people have seen my hard core tech ...

1. Preface The previous article analyzes how the Consumer initiates an RPC call, and how the Request object Request is encoded from the client, then sent to the server through the network, and then decoded by the server. Next, it starts to analyze how the service Provider handles RPC call requests. ​ This paper will analyze from two dimension ...

1, Basic guidance (1) Get data through Ifram Get index2 through Ifram's contentWindow HTML data //index1 <iframe src="index2.html" id="myIframe"></iframe> <script type="text/javascript"> var myIframe = document.getElementById('myIframe'); window.name = 'mainWindow'; myIframe.onload = function(){ console. ...

Preface Log4j2's remote execution vulnerability has recently become so hot that I've been using logback s to save lives and lie in bed to watch the show this weekend. We don't need to, but we still need to know. Reproduction Control server ■ RMIServer RMIServer starts an rmi service, which starts two ports, a registry setting, and a ra ...

Introduction to Internet of things and communication module Embedded Internet of things: ARM architecture certification, Huawei Internet of things certification, Ministry of industry and information technology Communication technology of Internet of things: wired communication Ethernet OSI7 layer network structure: Application layer: t ...

In these examples, you can find different ways to create a simple proxy socket server. This is useful for a number of reasons: Capture traffic between clients and servers.Limit upload / download bandwidth to see how your website loads slow connections.View the system's response when there is a problem with the network."Dynamically" m ...

Interceptor chain should be one of the core of okhttp framework. Responsibility chain model The implementation of okhttp request Interceptor is a typical responsibility Chain mode, which generally requires the Interceptor class to implement the same interface. There is an Interceptor interface in okhttp. Both the default Interceptor and our c ...

introduction Prometheus' ability to collect and store indicators belongs to two independent components, Prometheus Server and alertmanager (general component). The former is only responsible for generating alarm notifications based on "alarm rules", and the specific alarm operations are completed by the latter. Alertmanager i ...