(unencrypted) as strings in base64 format.Network eavesdroppers can easily read data.
Use Basic verification only for security purposes. For example, if you do not need to protect your creden, or bind an HTTP network encryption protocol (such as SSL ),.
3.2 digest Verification
You also need to provide account information in the Login Dialog Box displayed in the browser. But the difference is that,Hash string used to verify the password passed b
@protocol MyProtocol @required//Declares what must be done, by default@required-(void) walk;-(void) speak;-(void) think; Think is not implemented in the class implementation warns!!!@optional-(void) sing;-(void) laugh;@endA protocol can declare a large stack of methods, but cannot declare member variables;Two agreements can not inherit, but the agreement may abide by another agreement;Subclasses can abide
This is an http-based resumable data transfer protocol, mainly using different httpmethods and related custom headers to implement the resumable data transfer function.Specific methods and headers:1. HEADThe head request is used to obtain the status of the uploaded file. The server returns the range of the files that have been written and those that have not been written.(PS, I just found that the Protocol
TCP (transmission Control Protocol, transmission Protocol) is a connection-oriented protocol,In other words, a reliable connection must be established with each other before sending or receiving data.A TCP connection has to be three "conversations" to build, and the process is very complex and simply describes the simple process of three conversations:
A
overturn.
My ideal is to be a knowledgeable person with a wealth of professional knowledge, enough to deal with problems at work. In addition to work, you can read books to improve your temperament.
1. what is TCP/IP?
If you want to know a person, you can chat from the group where he belongs. Our HTTP protocol is a member of the TCP/IP protocol family. we understand the status of HTTP in the entire netwo
Preface: Because OBJECT-C does not support multiple inheritance, it is often replaced with protocol (protocol). The Protocol (protocol) can only define a common set of interfaces, but cannot provide a specific implementation method. That is, it only tells you what to do, but specifically how to do it, it does not care.
First, protocol1. Basic use1> can be used to declare many methods, but cannot be used to declare member variables2> as long as a class complies with this protocol, it is equivalent to having all the method declarations in this agreement3> as long as the parent adheres to a protocol, the subclass also adheres to the2. FormatPreparation of the 1> protocol@
in C # writing code, many times you will encounter the HTTP protocol or TCP protocol, here is a simple understanding. The TCP protocol corresponds to the transport layer, while the HTTP protocol corresponds to the application layer, in essence, there is no comparability between the two. The HTTP
In terms of email, POP and IMAP are the most famous protocols. I don't need to talk about the POP protocol. Many users will be familiar with this protocol when setting some mailbox binding functions. Some friends may not understand the IMAP protocol. Here we will make a comparison between the two Protocols.
POP ProtocolPOP stands for Post Office
Protocol(protocol)(a) Introduction2.Protocol: For a single use, declare a whole bunch of methods (cannot declare member variables), cannot write implementation. 3. Features: The agreement only stipulates what to do, regardless of how it is done4. As long as a class complies with this agreement, it has all the method declarations in the agreement.5. As long as the
methods ("Private" method)2.Extension Features:A. Extension's grammatical format is similar to categoryB.It is equivalent to moving the category. h file into the. m file of the original class , and its implementation is done in the. m file of the original class .c. Extension is for its own class and must have a class of source codethe difference between 3.extension and categorydefine extension: Add extension to the person.m file:Iv. mastering The definition and use of
Chapter 2 route protocol Reading Notes and Chapter 3 route protocol
Chapter 2 route protocol Reading Notes
In a complex network structure, data needs to be sent to the target host through a reasonable route. The route control module determines the route.
7.1 definition of Route Control
7.1.1 IP address and route control
The Internet is composed of vro connected n
In C # writing code, many times you will encounter the HTTP protocol or TCP protocol, here is a simple understanding.The TCP protocol corresponds to the transport layer, and the HTTP protocol corresponds to the application layer, which is inherently not comparable. The HTTP protoco
The writes code in C #, and many times it encounters the HTTP protocol or the TCP protocol, which makes a simple understanding. The TCP protocol corresponds to the transport layer, and the HTTP protocol corresponds to the application layer, which is inherently not comparable. The HTTP
The TCP/IP state machine, as shown in:In the TCP/IP protocol, the TCP protocol provides a reliable connection service with a three-time handshake to establish a connection, as shown in 1. (SYN packet indicates flag bit SYN=1,ACK packet indicates flag bit Ack=1,syn+ack package represents flag bit syn=1,ack=1)(1) First handshake: When a connection is established, client A sends a SYN packet (SEQ_NUMBER=J) to
Java-like generics and interfaces for the type of 1. Define the agreement@protocol Client void) Defaultmethod; Default must implement @required// must -(void) Required; @optional// optional -(void) optional; @end 2. Compliance (Implementation) agreement #import "Client.h" @interfaceJackclient:nsobject@end @implementationjackclient-(void) defaultmethod{NSLog (@"This is Defaultmethod"); } -(void) required{NSLog (@"This is require
Opening remarks:
I personally think that the entire SAS protocol family is large, and there are many concepts that are hard to understand. I can only study the actual code at work while reading the protocol in detail. In this way, we can better understand the SAS protocol.
It is the best way to understand the protocol
AJP13 is a directional packet protocol. For performance reasons, use binary format to transfer readability text. The Web server is connected through a TCP connection and a servlet container. To reduce the cost of the process to generate a socket, the Web server and the servlet container try to maintain a persistent TCP connection and reuse a connection for multiple request/reply loops. Once the connection is assigned to a specific request, it is not a
The ARP Address Resolution protocol is a TCP/IP protocol that obtains physical addresses based on IP addresses. It works in the second layer of the OSI seven-layer model-the data link layer.Using the ARP Address Resolution protocol, the destination hardware address (MAC address) information can be resolved according to the IP address information in the IP packet
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