what is packet sniffing

No matter whether enterprise users are ready or not, IPv6 network deployment is just around the corner. The demand for advanced site selection technology is growing, and everything in life will be able to use this technology. At the same time, VoIP has become the mainstream technology and has become the basis of other network services. It is no longer the concep

maintenance department?At present, we lack clear role definition and responsibility division in the operation and management process, and automated integrated operation and maintenance management platform, so that it is difficult to find the reason quickly and accurately after the problem, and the lack of necessary tracking and recording after dealing with the fault.2 . Secrets hidden behind trafficNetwork interface of the end, the size of traffic, h

is the user's password,Once a packet is captured, the hacker obtains the data encrypted on the front end, and can log on in disguise. If the security requirements are high, you can still use https honestly, although it may also be attacked. If you use full-site https, an alarm is triggered for all http resources, b

in today's network era, rub net believe many friends are not unfamiliar. But have you ever thought of such a problem: routers are hackers rub the net, the user will have what harm? Will he threaten the owner, or will he be able to hack me? or the router is connected by a malicious stranger, what can they do? Today we are going to talk about

What is ping? Often a netizen asked me this question, in fact, the word ping originally originated from the sonar detection system, intended to refer to the pulse signal from the sonar equipment. In the development of the Internet, the process of detecting the connectivity between two nodes in the network is very similar to the sonar detection process, so the nam

Hub, the English name also known as the Hub, in the OSI model belongs to the data link layer. Cheap is its biggest advantage, but because the hub is a shared device, resulting in the heavy network, the efficiency becomes very low, so we can not see the hub in the medium and large network. Today's hubs generally use Full-duplex mode, the common market on the hub transmission rate

The core switch adopts the distributed CrossBar and distributed switching architecture to solve the large-capacity switching problem. Currently, all switches support full duplex. The advantage of full duplex is low latency and high speed, the following is a description. Applications are always the driving force behind technological development. In the face of increasingly complex business applications, the

to the sustainable development of the Internet and long-term. At present, the Internet organization has decided to set up two specialized working groups to develop corresponding international standards. IPv6 FAQ 1. What is IP? What is IPV4? What

Experts tell you what a layer-3 switch is. Now every household has their own computer and understands what a layer-3 switch is. At that time, the layer-3 switch was based on software and the forwarding speed was very slow, later, it was developed to implement layer-3 switching with hardware. In, a layer-3 switch was bo

Ask for php, a socket expert, and check what type of data format I sent in hexadecimal format, however, the packet capture tool does not know what type of data format it translates into. see the shadow in the figure. ------ solution -------------------- hexadecimal php, socket expert, see what type of data format this

1. The relationship between the HTTP protocol and the TCP/IP protocolLong connections and short connections to HTTP are essentially TCP long connections and short connections. HTTP belongs to the Application layer protocol, which uses the TCP protocol at the Transport Layer and IP protocol at the network layer. The IP protocol mainly solves the network routing and addressing problem, the TCP protocol mainly solves how to reliably pass the packet over

multiple clients on the Internet. Therefore, the normal Web proxy server does not support external access requests to the internal network. When a proxy server is able to proxy hosts on an external network, this proxy service is called a reverse proxy service when it accesses the internal network. At this point the proxy server is represented as a Web server, an

Some of the answers collected online: The connection was maintained on state, and I understood so is actually maintaining a variable on both the client and server side, this variable maintains the current state of data transmission, such as what is being transmitted, what data is