Local Area Network security threats and cloud security technology in cloud computing

Currently, the private cloud Technology in cloud computing has been used in the enterprise's LAN, and security risks also occur from time to time, in this way, cloud security has become a major technical issue for enterprises to study. Many anti-virus software manufacturers have now launched cloud anti-virus software. In the concept of "cloud anti-virus, some cloud security knowledge is summarized through study and research, which is applied in LAN and summarized as follows.

1. Analyze the Local Area Network Security Threats

Insiders believe that the threats to the internal network of the Organization mainly come from outside the Organization, but from inside the organization. Therefore, it is wrong to focus on preventing the network from being attacked from outside the Organization, while ignoring the network security threats from within the Organization. According to statistics from the CISCO Security Department, more than 70% of security incidents (especially leaks) come from within the Organization. Therefore, due to insufficient awareness of internal network security threats, the security department of the organization has not taken proper scientific preventive measures, resulting in an increase in internal network security incidents. In addition to deployment defects of the security system, the internal network security risks of the Organization are more likely to be caused by the internal staff of the organization, as shown in:

(1) unordered management of mobile storage media;

(2) use pirated software and games to spread viruses;

(3) The user and user group permissions are unreasonably allocated;

(4) account and password management does not comply with strict regulations or are unreasonably set;

(5) Too many service ports are opened;

(6) the network administrator's workload is too large, the professional level is not high enough, and the sense of responsibility is not strong enough;

(7) user operation errors may damage network devices, such as host hardware, accidental deletion of files and data, and hard disk formatting;

(8) internal network attacks. Some employees turn to enemy spies in order to vent their anger or be turned back to them, and become unit secrets or Destructors. These employees are familiar with the internal network architecture of the Organization and can exploit management vulnerabilities to intrude into others' computers for damage;

(9) Internal attacks from wireless network users. If the enterprise LAN is deployed with wireless access AP, if security measures such as identity authentication are not taken to prevent such attacks, computers with wireless network adapters installed within the AP range and portable devices can be automatically added to the network of the Local Wireless LAN, which makes the local LAN vulnerable to illegal attacks.

Ii. Cloud Security Technology in cloud computing

After the emergence of the cloud computing industry, "cloud security" emerged ". "Cloud Security" is an important field in the Development of cloud computing. It cannot be ignored. We must take "cloud security" as the prerequisite for cloud computing development, the cloud computing industry attaches great importance to 'cloud security'. Without the protection of 'cloud security', our cloud computing development will also lose everyone's confidence.

So what is "cloud security? In layman's terms, "cloud security" refers to the virus code collected by the anti-virus manufacturer through the Internet by using the client, through analysis, processing, and processing. Finally, a solution is provided and distributed to the user, in this way, the entire Internet becomes a huge anti-virus software that safeguards users' computer security. You do not have to worry about upgrading the virus software library every day.

Some people say that the emergence of cloud computing technology indicates the arrival of the Post-PC era. During the evolution from the C/S architecture in the software industry to the B/S architecture, the client's hard disk needs will inevitably decrease, and the client's intelligent requirements will also decrease. In the future, personal PCs will no longer need to install any software, you do not need to download any software and install it on the PC. Instead, you can remotely call all application environments through a browser or professional device to make full use of the resources of cloud servers, reducing local load and TCO, make personal PCs greener.

What are the advantages of cloud security technologies over ordinary security technologies? In general, cloud security uses a large number of servers on the cloud. Cloud security technology does not occupy the memory of each user's computer, but anti-virus software currently occupies a large amount of memory on the customer's computer. Cloud security technology is used, if a client on the internet is attacked by a virus, cloud Security collects the virus code to protect other people on the Internet from the virus. Using Cloud security, the virus is intercepted before the arrival of the virus. Generally, the security technology of personal computers is that the antivirus software can be eliminated only after the virus occurs. Even if the antivirus software is not upgraded, it cannot be effectively protected.

Therefore, the cloud security technology idea is to use cloud servers to instantly collect a large amount of virus database information, and timely and effectively protect the user's local end, so as to achieve the purpose of sharing network information.