what is sip protocol

What does a VPN mean? The English full name of the VPN is "virtual private network", translation come Over is "the fictitious specialized network". As the name suggests, virtual private network we can understand him as a virtual enterprise internal line.---- This VPN's English full name is "Virtual private network",

address to which the node is assigned (2) MAC address: Refers to the fixed address that the NIC belongs to (3) Difference: The IP address can be transformed, but the MAC address is basically not changed. If you want to ensure that packets are routed to each other, you have to meet a variety of conditions, the most important of which are the IP address and the MAC address of the two.

following blog. It should be pointed out that Netfilter and IP protocol stack are seamlessly compatible, so if you have the foundation of the protocol stack, you will feel familiar when reading this article. Of course, it doesn't matter if it doesn't, because I will popularize the introduction of protocol stack at key points. It's just a matter of popularity. I

1. What is a servlet? * Server-side Java programs, Servlets need to be handed to the server to run. * Java program related to Javax.servlet.Servlet interface 2, how to use servlet? "Must" * Create a WEB project * Create a class and implement a servlet interface * to the server to run/web-inf/web.xmlRegister Servlets - servlet> Servlet-name>HelloWorldServlet-name> Servlet-cla

What is alg file? The Alg.exe process file is a program from Microsoft's Windows operating system that handles Microsoft Windows network Connection Sharing and network connection firewalls. Application Gateway Service, which provides support for Third-party protocol plug-ins for Internet Connection Sharing and Windows

What is the impact of the region chain structure on the data center? The impact is good or bad !, Regional data center With the emergence of distributed data center networks, their boundaries are getting closer and closer to the end users they serve, and the structure and functions of databases are also evolving. Its data security has obviously become a major pr

Original address: http://www.cnblogs.com/engeng/articles/5959335.htmlRecently, the interview is often asked this question, want to interview the interviewer wants to examine the network knowledge, see whether this knowledge has formed the architecture.When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?The following proce

When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?The following procedure is for personal understanding only:Domain name resolution--Initiates a TCP 3 handshake--initiates an HTTP request after the TCP connection is established--the server responds to the HTTP request, the br

What is the process of a complete HTTP transaction? statement: The statement in this article is only a summary of personal understanding, not necessarily completely correct, but can help to understand. For the HTTP protocol, refer to the following: HTTP protoco