At present, we have encountered a series of problems when we are doing a data leak prevention solution for our customers. Our customers do not like the solution very much. Let's see if Zhihu has a big god to give fulcrum advice. Customer basic information and needs: the customer is a hospital, the internal network can not be connected to the external network. They want to make a film in the hospital.
Create an autorun.inf file in your USB drive. As simple as that, autorun.inf is one of the more common files used by our computers, and its function is to allow a specified file to be run automatically when you double-click the disk. But in recent years, there has been the use of autorun.in
How to solve the risk of data file transfer? The important and core data files at the bottom of the system are often faced with update and transmission. It is impossible to avoid accidents, quickly locate the causes of accidents, and recover disasters in time only by preventing copying data files. Then "quickly locate the cause of the accident and recover in time."
A few days ago, a friend said that there was a small advertisement at the bottom of the page of the visiting website. The content was a little indecent. My friend took a screenshot and sent it to me, teasing me about how to put this kind of advertisement. I wondered, at the beginning of the operation of the website, there was never any advertisement, not to mention indecent advertising. Another problem encountered recently is that the website
SNMP V3 supports triple security mechanism, which is more secure than V2C, V2 and V1. NMS needs authentication to establish a connection with Agent, encryption for message transmission, and group name for interaction. 1. ZTE 89 Series switch SNMP v3 configuration template: snmp enab
The demand and driving force of SDN many network colleagues will have a series of questions after understanding the architecture of SDN (Software Defined Networking) for the first time: where is the real customer demand of ① SDN and what problems can it solve? ② centralized control
Information security construction is a very meticulous and important work. To do a good job in the construction of information security, first of all, we need to conduct in-depth and comprehensive research on the historical situation of the development of organizational informatization, know the family background, master the situation, and carry out the overall development planning according to the main contents of information security. In the previous article
Today we experiment with one-arm routing to implement inter-VLAN routing. The most fundamental purpose of dividing VLAN is to increase the number of broadcast domains, reduce the scope of broadcast flooding, and limit broadcasting to one broadcast domain, so as to optimize the utilization of bandwidth and facilitate management. The so-called single arm
1. Source routing means that the routing path of data communication is determined by the source host, so that the data can take a specific route to bypass the faulty network, and the throughput of a particular network can be tested. 2. Record routing, that is, the IP address of each hop route from the source host to the destination host in data communication.
Noun explanation: [ssh] ssh, the abbreviation of Secure Shell, is a protocol similar to telnet, except that ssh encrypts data in the process of information transmission. [key] key is a way to encrypt data during transmission, which is divided into symmetric key and
Experimental purpose: Trunk's principle of dealing with pvid for Access and Hybrid, pvid is an interface to tag a frame without tag, from scratch to existence, while for Trunk, if tag = = pvid in an outward frame, ta
Pointer 1. Use a pointer. What is a pointer? What is the memory address? What is the value of the pointer? A pointer is a variable that stores the memory address of a computer. Reading data from the memory that the pointer points to is called the value of the pointer. Pointers can point to specific types of variable addresses, such as int, long
Singleton mode: there is only one instance. Singleton pattern singleton mode: ensures that a class can generate only one instance while the program is running, and provides a global access point to it. This class is called a singleton class. For example, in a project, there is only one database access object.
1. Frame Relay parsing 1, belonging to connected layer 2 network technology. DLCI (data Link connection Identification) identifies PVC between router and frame Relay switch, local valid 3, PVC (permanent virtual circuit) 4, LMI (local management interface) router and frame Relay switch.
"Network Marshal" is an auxiliary software for local area network management, which adopts the underlying network protocol and can penetrate each client firewall to monitor every host in the network (in this paper, the host refers to all kinds of computers, switches and other network devices equipped with IP), and uses the network card number (MAC) to identify users with high reliability.
The intra-if judgment parameter used in shell programming-b returns true-c when file exists and is a block file, returns true-d when file exists and is a character file, returns true-e when pathname exists and is a directory
In the part of HTTP, the related knowledge of URL is introduced in detail. The url module in nodejs provides some practical functions for URL processing and parsing. This article will introduce URLURL objects in nodeJS in detail. Parsing URL objects has the following contents, depending on them.
Mainly refer to the fusion of the online relatively hot VIM configuration documents, coupled with my usage habits. Thank them for their dedication! Basically, there are comments on every line of configuration. I believe you will understand it if you read it carefully. "Don't use vi's keyboard mode, but vim's own set no.
The preface aims at the "Eternal Blue" blackmail worm that has ravaged the world recently, in order to effectively prevent the virus and minimize the loss after being caused by the virus, all units have taken relevant emergency measures, but there is no way to verify whether the solution is effective. Fortunately, Paulin
1. Signal 1 > Information: people's understanding of the mode of existence or movement of things in the real world 2 > data: specific values used to describe certain attributes of things 3 > signals: media for information transmission 2, classification of signals 1, analog signals: continuously changing physical quantities 2, data signals: discontinuous objects
