attacker.At this point the attacker controls the traffic between PC A and computer B, and he can choose to passively monitor traffic, acquire passwords and other secret information, and falsify data to change the communication between Computer A and computer B.4, the harm of ARP spoofingARP spoofing can cause the target computer to fail communication with the gateway, which will lead to traffic redirection, and all data will pass through the attacker's machine, so there is a great
vro through the assigned IP address, so it is necessary to disable the DHCP function.
Wireless Network Security Settings II: Encryption
Nowadays, many wireless routers have the wireless encryption function, which is an important protection measure for wireless routers. Data Encryption in radio waves ensures the security of transmitted data information. Generally
can easily bypass the configuration of the corporate firewall. Skype uses 80 and 443 ports, and most firewalls open these ports to allow browsing of the network. In addition, Skype will change the transmission route if the assigned port is not available when the Skype is installed. As a result, Skype's ports can be changed according to demand, making it harder to block Skype with firewalls.
Skype also uses a unique AES 256-bit
Is your computer shared with people? If so, you will be concerned about the security of your personal files, and if you are using the Windows XP operating system, you can use some of the simple and efficient settings provided by Windows XP to maintain your file security.
1, how to let XP automatic networking
ie--tool--internet Option--Connection, check "network
wireless network.
Wireless Networks are exposed. Compared with wired networks, wireless networks rely only on radio waves for transmission and reception. As long as malicious users have certain knowledge about wireless networks, the security of enterprise wireless networks is quite a problem. Intruders can destroy and intrude through highly sensitive receiving devices.
The default Wireless LAN has no
protection measure for wireless routers. Data Encryption in radio waves ensures the security of transmitted data information. Generally, wireless routers and APs have the WEP encryption and WPA encryption functions. WEP generally includes 64-bit and 128-bit encryption types, you only need to enter 10 or 26 hexadecimal strings as the encryption password to protect the wireless network. The WEP protocol encr
take advantage of the vulnerability of the NetBIOS network protocol routine handler OOB to place some specific packets of data OOB on an open port on an IP address (usually 139, 137, 135) , causing your computer to crash suddenly; attacks on Windows 98 systems are primarily for the WINDOWS98 system's own blue-screen vulnerabilities, while Windows 2000 attacks are a number of denial of service vulnerabilities through itself. Here are a few common IP b
identification, and response ), improve the integrity of the information security infrastructure. It collects information from several key points in the computer network system and analyzes the information to check whether there are any violations of security policies and signs of attacks on the
, as the key equipment to maintain network security, occupies a pivotal position in the system of network security protection currently adopted. With the development of computer technology and the popularization of network applica
://www.tcpdump.org
Snort home page and related resources
http://www.snort.org
NSS report on the evaluation of IDS system
Http://www.nss.co.uk/ids/index.htm
Open Source Mounts IDS Challenge report
http://www.vnunet.com/News/1127283
Article "insertion, evasion, and denial of service:eluding network intrusion"
Http://secinf.net/info/ids/idspaper/idspaper.html
Stick Author homepage
Http://www.eurocompton.net/stick/projects8.html
E-GAP Products
Http://www.
This is no longer a secret-network threats have become more common and complex than ever before-it is difficult to rely solely on a single anti-virus solution.
Many malicious Trojans and worms, such as Koobface and Conficker, are used to snoop key records and plagiarize sensitive information, causing serious damage to the enterprise network. At the same time, man
effective detection methods for certain security incidents, such as DDoS attacks, worm viruses, etc.
4. Multiple network devices, or multiple mirroring on the switch to achieve packet capture, can cause network performance degradation.
The integration of intrusion detection, security audit and abnormal traffic, usin
strings can be produced in a variety of ways, the simplest way is to use the random () function to generate a random number and then use the format () function or inttostr () to produce a string.
Second, user login measures
In order to prevent the program from being illegally debugged so as to disclose the password, the client's login information must be processed on the server side, or a security layer can be specifically added to the client's log
operation of the business system, and so on.
(3) Knowledge "island".
Many cutting-edge security technologies are often only understood by a few people within the enterprise, and they lack the means to share these knowledge to improve the overall security level of the enterprise. At present, the security field is becoming larger and smaller, and the experts in
Author: panzhutingThis article describes the characteristics, implementation concepts, and principles of network security emergency response from the perspectives of "looking at emergency response", "Three Views", and "Three Views of emergency response. The article first introduces the unique position and complexity of emergency response in network
monitoring is not only a very large workload, but also very blind, efficiency is not high, but also easy to make students have a psychological resistance. Therefore, the school management and the parents of the students attach great importance to the industry in the application of security products for each of the comparison, Mr. Zhou finally locked in a new United States intelligence Web page filtering System products swf (SurfControl Web Filter) on
key:
1, open "Network Connection", click on the wireless network card properties.
2, select "Preferred Network", select or add an entry, and then click Properties.
3, open the wireless network properties after the following operations:
1) Modify "
As we all know, in windows, when Apache is installed as a service for the first time, it will run with the user "System" (Local System account. If all the resources of the web server are on the local system, this will have fewer problems, but it will have a lot of security permissions to affect the local machine, therefore, you must never enable the network permissions of the System account! Create a new ac
spending a lot of money. The key is the right setting.
The goal of each security management plan is to make the intrusion process more complex, require more time, and be caught in a higher probability to guard against potential intruders or attackers. Even if you are installing fences in your yard, lock the door, keep a dog in the yard, put a latch on the window and the door, install the burglar, and you
First, Checkpoint introduction: As one of the organizations and advocates of the Open Security Enterprise Interconnection Alliance (OPSEC), checkpoint company is committed to enterprise-level network security products research and development, according to IDC's recent statistics, its FIREWALL-1 firewall in the market share of more than 32%, "fortune" The top 100
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