On the campus network security management _2540

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On the campus network security management
 
 
[Abstract] information technology has become the focus of university development, the campus network as the main carrier of information technology, network security has become the campus network construction in college the most important issue can not be ignored. This paper describes the university network security status and characteristics, the corresponding preventive measures.  [Key words] status of the campus network security precautions   With the improvement in the level of information, many schools have been established and put into use the campus network, which is no doubt speed up information processing, improve efficiency, reduce labor intensity, the sharing of resources have played invaluable role. Network openness, transparency and value-added flexible and effective multi-service capability makes it more vulnerable to attack itself. Network security has become the most difficult to solve the most difficult issues, the campus network as the main carrier of information technology, campus security has become the network construction in college the most important issue can not be ignored.   A campus network status and impact of   1. Computer and Internet connected, but did not install the antivirus software and firewall  operating system security vulnerability, network trojan, virus and hacker attacks affect the security of the system. Most computer systems are more or less the school there are various loopholes open to the campus network and the community, so that as long as the INTERNET users can access the campus web server attacks, and many popular network viruses, such as launched, the Trojan to open a service in the machine, through the service of your computer information, data out transfer.  2.  Against the virus with the rapid development of network, raising the level of network virus maker, virus spread through the network has a huge destructive. Especially in recent years, network software, the combination of viruses and hackers, network virus outbreaks led directly to the user's privacy and important data leaks, and also a great drain on network resources, resulting in a sharp decline in network performance and even cause serious congestion throughout the local area network and paralysis. As the most popular worm, by e-mail, network share or active scanning mode from the client's Web server campus network infection, change the directory page to reproduce itself, and by sending spam and scan the network, resulting in network Services Therefore, the computer virus is a direct threat to network security.  3. To hackers and hacker intrusion  network refers to the network of illegal users. Some hackers often through access to passwords, steal privileges, network monitoring, place selectively destroy the effectiveness and integrity of information, resulting in the loss of a large number of user data, hardware damage and even paralysis of the system. Unlawful invasion of the user's attack there is a campus network security.  4. Network equipment damage caused by mismanagement of the damage  equipment mainly refers to the destruction of hardware devices on the network. The campus network, the network equipment distributed throughout the campus, very difficult to manage, these devices can not always comprehensive monitoring. If the device does not have any protective measures or protection measures properly, then it may be intentionally or unintentionally damaged. Network facilities once destroyed, will result in partial or total paralysis of the campus network.   Second, the campus network security measures   1. Firewalls control. Network and technology is developing rapidly, the network is open, transparent and in software design and development is difficult to avoid defects and vulnerabilities to malicious attacks have resulted in a variety of opportunity. Install a firewall is to prevent malicious attacks such key measures,You are not allowed to view links. Register or Login, the firewall is used to prevent network hackers to access a network of institutions barrier. It is the implementation of control strategies between the two networks the system is used to limit external illegal (unauthorized) users access internal network resources through the appropriate network established communication to isolate the internal control system and external network to stop the intrusion of the external network to prevent theft or malicious attacks from the damaging effects. According to the current technology used in the different firewall, it can be divided into four basic types: packet filter type, network address translation-NAT, proxy-based and monitoring-type, the best safety performance monitoring type, as the campus network firewall should be to monitor firewall, supplemented by other types of firewall. Firewall can monitor the data on the active layers, real-time monitoring, in an analysis of these data, based on the layers can effectively determine the illegal invasion. At the same time, this firewall also with distributed detectors, these detectors placed in a variety of application servers and other network nodes being not only able to detect external attacks from the network, while from the inside of vandalism, there are the strong preventive role. Firewall security monitoring has been beyond the packet filtering and proxy-based firewall, but because of firewall technology to monitor real- box the high is not easy to manage, which requires all colleges and universities attach great importance to the leadership the construction of the campus network, increase investment to maintain the security of the campus network.