Measure the test taker's knowledge about the Intranet security of Internet cafes from the perspective of the hazards of ghost and shadow viruses.

1. Why is it known as the ghost movie virus?

Currently, windows xp can only be infected. The virus is parasitic on the disk Master Boot Record (MBR), so the virus cannot be cleared even if the system is formatted and reinstalled. While the ghost movie virus is hard to be cleared, it also ignores the anti-virus software in the system and downloads a large number of Trojans, which is the best virus in history.

2. Why does the ghost movie virus harm the Intranet security of Internet cafes?

As we all know, viruses are program code that harms system software and do not directly harm the network, however, when the virus is transmitted and the virus is "attacked", the infected host may cause damage to the network in the form of attack packets. Nowadays, the ghost and shadow virus is usually infected with tools and software, or even plug-ins downloaded by "players", on the hosts of Internet cafes, when a normal host changes to a ghost host, it becomes the source of the attack. What we cannot control is how the ghost host will attack, ARP? DOS? Flood attacks ?......, In this case, the Internet cafe encountered problems such as "card and disconnection. So how to defend against such dangers is the question to be discussed below.

3. How can I solve the problems caused by Intranet attacks, such as network card and disconnection?

1. When hosts in Internet cafes are infected with viruses or are carried by humans or plug-ins), they are likely to become the source of network attacks, in similar cases, Internet cafe administrators usually use various means to find the source of infected hosts and attacks. This solution increases the load on Internet cafe managers, it is often worried about complicated viruses and variants of attacks, especially in the face of "ghosting virus" that is difficult to solve, which makes Internet cafe managers have a headache; 2. When a manager finds that an attack has taken shape, it has already caused harm to Internet cafe operations. I believe that this method is not advisable.

2. Is there any way to solve the problem from the root, through network devices and the overall network architecture to solve the problem of Intranet attacks? Taking into account the customer's needs, feiyuxing technology put forward the new concept "ASN Security Linkage" defense system in the industry, that is, it hopes to form a whole network topology through the organic combination of network devices, all devices in the ASN system work together to defend against Intranet attacks.

Figure: topology of the Apsara stack Security Linkage Solution

Iv. Advantages of the Apsara stack Security Linkage Solution

L bring the Internet cafe a network that is permanently and without maintenance: When the Intranet host is infected with the ghost and shadow virus, some malicious traffic may cause the network to become stuck or dropped, in the ASN solution, routers with the "command" role can analyze the sources of malicious traffic and whether the traffic is under attack, when an attack is detected, the system can issue commands to allow the "execute" role's switch to effectively handle the attack. Even if the host is poisoned, it will not affect any other host on the Intranet. Set up and configure the ASN system solution at one time without worrying about the mainstream attack-Intranet attacks!

L linkage Configuration Management: as the "Command" in the solution, all devices in the network can be configured and managed in a unified manner, and all configurations can be improved and distributed in one click. Intelligent configuration can be implemented throughout the network, which is convenient and concise.

L clear troubleshooting: The penalty mechanism in the ASN solution can effectively discover infected hosts and give managers a clear picture of which hosts have problems in the intranet, and take effective measures.

L The ASN scheme is the same as the insurance scheme. At present, many Internet cafes usually encounter network problems-discovering problems-solving problems. The delay in time leads to the loss of Internet cafe operators. The ASN linkage solution can provide "insurance" for Internet cafes, rather than a "desperate" defense solution. It has done its utmost to reduce the operation losses of Internet cafes.

V. Summary

Currently, it is popular and has a tendency to expand. "ghost and shadow virus" makes it difficult for Internet administrators to solve the problem by conventional system re-engineering, the headache for Internet cafe operators lies in the huge loss caused by the severity of the virus, and the headache for players lies in the loss of virtual assets caused by many popular online game plug-ins. Through analysis and corresponding solution recommendations, this article helps users to properly apply and hope to provide substantial help to customers who are able to withstand the Intranet attacks caused by the ghost virus!