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DNS ServerIt is a domain name system or Domain Name Service. The domain name system assigns domain name addresses and IP addresses to hosts on the Internet. DNS software is a target that hackers are keen on and may cause security problems. This article provides 10 most effective methods to protect DNS servers. 1. Use a
DNS spoofing technology principle and Security Protection Technology Overview: What is DNS spoofing?DNS Spoofing is the art of changing the original IP address of DNS. For better understanding, let's look at an example. If you want to use your browser to search for some inf
65535.0Void main (void){Float chances;Int I, j;For (I = 0; IThe result is as follows:Queries50100150200250300350400500550650750Chances0.01850.07280.15690.26210.37850.49610.60690.70480.85170.90080.96040.9865We can see that the probability of 650 constructed replies is 0.960411 successful, almost 100%!For more information, read the following articles:Http://www.kb.cert.org/vuls/id/457875Http://www.securityfocus.com/guest/17905D) SummaryIn this article, I use www.google.com as an example, not beca
in the options statement: Options { Allow-query {210.10.0.0/8; 211.10.0.0/8 ;}; }; (4) separated DNS (split DNS) The split DNS technology is used to divide the DNS system into two parts: Internal and External. The external DNS system is located in the public service area an
It is a very basic requirement to ensure the security of the domain name resolution system on the Windows Server 2003 domain (domain Name System, for short, DNS). Active Directory (Active Directory, referred to as AD) uses DNS to locate resources (such as files, printers, messages, and so on) that are required for domain controllers and other domain Services. Sin
It is a very basic requirement to ensure the security of the domain name resolution system on the Windows Server 2003 domain (domain Name System, for short, DNS). Active Directory (Active Directory, referred to as AD) uses DNS to locate resources (such as files, printers, messages, and so on) that are required for domain controllers and other domain Services. Sin
Windows2000 Domain name resolution is based on dynamic DNS, the implementation of dynamic DNS is based on RFC 2136. Under Windows 2000, dynamic DNS is integrated with DHCP, WINS, and Active Directory (AD). There are three ways to implement DNS under Windows 2000 domains: integrated with Active Directory, primary
Article Title: DNS server security strategy under solaris10. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. A DNS server is a server that provides domain name resolution services for hosts on the network. Although Solaris 10
Security Gateway Model: Hillstone sg-6000-g2120 System version number: sg6000m-4.5r3p3.5 The company used to use telecommunications and unicom two lines of Internet access, each line has a separate router and firewall, a running business data, the other used for ordinary internet, is separate. But the engine room moved to the new office building, and then added a mobile exit, and to use the three export online, with the technical staff to communicat
Windows2000 domain name resolution is based on dynamic DNS, and the Implementation of Dynamic DNS is based on RFC 2136. In Windows 2000, Dynamic DNS is integrated with DHCP, WINS, and Active Directory (AD. There are three methods to implement DNS in Windows 2000 Domain: primary DNS
Under Windows 2000, dynamic DNS is integrated with DHCP, WINS, and Active Directory (AD). There are three ways to implement DNS under Windows 2000 domains: integrated with Active Directory, primary DNS integrated with Active directories, secondary DNS that is not integrated with active directories, primary
Several security questions about DNS Author: demonalex In the TCP/IP architecture, the most insecure is the data security at the application layer.Program/The remote buffer overflow and Script Injection of the operating system occur at this layer. Do you know how insecure it is ?! Today, I want to talk about the security
query information between internal and external DNS servers, this ensures the security of the system. In addition, this technology can effectively prevent information leakage. In BIND 9, you can use the view statement to separate DNS configurations. The view statement syntax is: View view_name { Match-clients {address_match_list }; [View_option;...] Zone_stateme
The role of a wildcard (wildcard) DNS wildcard domain name resolution can also be understood as a resolution record with wildcard characters. a dns record with wildcard characters is used to provide resolution request response methods for non-existent subdomains. For example, a domain example.com exists. If we set the wildcard record * .example.com, all subdomains that do not exist in the example.com domain
We all know that the DNS suffix of the client can be set in dhcpd. For example, if we set the DNS suffix to "sb.com", when we access www.sb.com, all clients will use the DHCP server and try the following sequence for resolution. Note: The following green fonts represent the primary domain name, and the red fonts represent the Host Name (second-level domain name header)1. If the
Small to big: Exploring the Security Application of DNS in Enterprise Domain Environments DNS applications within an enterprise are almost ubiquitous. As long as we don't want to remember the pure IP address information You need to use DNS to provide us with simple name memory, such as ing an IP Address: 192.168.10.1
users can tell others their online banking account passwords and online game account passwords in a confused manner.In this way, the email system will also be attacked by hackers. It is not for the Web server, but for the illegal address of the mail server, so that the system directs to the controlled mail server.Then, how does a hacker make the Cache Server Accept illegal addresses? When a DNS cache server receives a domain name request from a user,
Article Title: enhanced DNS Security: BIND can be run under Chroot. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Running BIND on chroot improves security. This article has been tested on Debian Sarge. You can modify other v
DNS Literacy Series 7: paying attention to domain name security and network security should not only be verbally concerned. It turns out that network security risks are everywhere on the Internet. Recently, Twitter and Baidu have the same problems. The following are some of my opinions that may not be comprehensive and
security risks, because the domain can still be resolved by the parser again and remains available until the next TTL expires. Generally, this is not a big problem, because the TTL value takes effect for a very short time, so the attack domain may only exist for several seconds or several minutes. In this article, we will discuss the recent DNS vulnerabilities in most
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