what is sip protocol

I believe that many new online mobile phone developers want to know what is the difference between HTTP and socket connections, and hope that they can help beginners through their own simple understanding. 1. TCP Connection To understand the socket connection, you must first understand the TCP connection. The mobile phone can use the internet function because the mobile phone bottom layer implements the TC

) is a brand based on the IEEE 802.11 series standard Wireless network communication technology, designed to improve interoperability between wireless network products based on IEEE 802.11 standards, by Wi-Fi Federation (Wi-Fi Alliance holds, in short, WiFi is a wireless networking technology that used to connect computers over the Internet, and now it's connected by radio waves. And Wi-Fi Alliance (also kn

the application server, and then return the results to the client, here nginx role is reverse proxy server. It also brings a benefit, in case one server hangs up, as long as there are other servers running properly, it will not affect the user's use. Through Nginx's reverse proxy, we reached the Web server, the service-side script to process our requests, access to our database, get the content to get, and of course, this process involves a lot of co

TCP/IP protocol stack and gained a deeper understanding of many concepts. For example, TCP and UDP belong to the same transport layer and are jointly deployed on the IP layer (Network Layer. The IP layer is mainly responsible for transmitting data packets between nodes (end to end). The node here is a network device, such as a computer. Because the IP layer

What is Iptables-general Linux technology-Linux technology and application information? For more information, see. Iptables is a packet filtering management tool based on the netfilter architecture. It is mainly used for firewall or transparent proxy. Iptables has evolved from ipchains and

I do not know if you have noticed the HTTP part of the input URL, when you open the site to operate sometimes automatically jump to HTTPS format, this is why? What is the difference between HTTP and HTTPS? How to convert HTTP to HTTPS, for these problems, we did a collation.1. What

configuration problems, and the other half because of communication between the customer and the server. Traditional Windows Rich Client Applications Use DCOM to communicate with servers and call remote objects. Configuring DCOM to work properly on a large network is a challenging task and a nightmare for many IT engineers. In fact, many IT engineers prefer to endure the functional limitations imposed by browsers and do not want to run a DCOM on the

accepts a stream of bytes sent over a, then deserializes the target method name, method parameters, then executes the corresponding method call (possibly Localadd) and returns the result 30; A Accept Remote Call results The RPC framework is nothing more than the details I just said to encapsulate, to the user exposed to simple and friendly API use (PS: Some remote calls to choose the lower socket protocol