I have understood this attack for a long time and do not understand what it means to "rebind. After A little understanding, I found that the attack principle is literal. Refresh the DNS A record and bind it to another address.
In the following section, I reference the note of a fairy
"To mount a DNS rebinding attack, the attacker need onlyRegister a domain name, such as attacker.com, and attractWeb tra defa
DNS is currently one of the most indispensable servers on the Internet, and every day we surf the web with the help of DNS. The DNS server can resolve the domain name for us, locate the e-mail server, and locate the domain controller in the domain ... In the face of such an important server role, we need to do some in-depth research, this article tries to explore
Most DNS cache servers exist in small enterprises. they are not responsible for domain name resolution and are only used to help users query domain name information from other DNS servers. The queried information is saved locally to facilitate the next use of the domain name. it is valid to shorten the domain name query time and save the local information. The following is... information
Most
The previous section mentioned some of the content of the recursive query, but said very little, but also very general, this section will be based on the principle and the case two aspects of DNS recursion and iterative query.
Before that, we need to learn some background to better understand today's topic.
In the Internet, a smooth resolution of a domain name is inseparable from two types of domain name servers, only by the two types of domain name
1. view the Host IP address resolved by the DNS host name
Host CommandPurposeResolve a host name to an Internet address or an Internet address to a host name.SyntaxHost [-n [-a] [-c Class] [-d] [-r] [-t Type] [-v] [-w] [-z] Hostname | Address [Server]Hostnew [-a] [-c Class] [-d] [-r] [-t Type] [-v] [-w] [-z] Hostname | Address [Server]DescriptionThe/usr/bin/host command returns the Internet Address of a host (when the Hostname parameter is specified)
# # # #三-Master DNS DNS Encryption # # # #1. Configuration of master-slave DNS1) Configure two DNS servers.2) where the DNS server is configured as follows:Vim/etc/named.rfc1912.zones---------------------------------------Zone "Westos.com" in {Slave type;Masters {172.25.254.100;};The file "Slaves/westos.com.zone";allow
Originally in this verse to explain the installation of DNS, but I found that in fact before this, but also need to explain a few basic concepts, first of all, the DNS suffix.
In the previous basic chapters, we know that a domain name can be divided into the main and suffix 2 parts, where the host we can understand as a host or a network terminal name, the suffix directly determines the nature of the domai
Problem phenomenon:AD The domain controller operating system is WIN2008R2, and a rejected error occurs when a DNS host (A) or alias (CNAME) record is manually added in DNS Manager. However, after you join the client to the domain, you can see the DNS host (A) record for the corresponding client in DNS Manager. In the s
What is DNS
DNS (domain Name System, name Systems), a distributed database that maps to each other as domain names and IP addresses on the Internet, makes it easier for users to access the Internet without remembering the number of IP strings that can be read directly by the machine. The process by which the host name corresponds to the IP address is called Domain name resolution (or host name resolution).
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DNS is the abbreviation for the domain Name System and is a core service of the Internet as a distributed database that maps domain names and IP addresses to each other, making it easier for people to access the Internet without remembering the number of IP strings that can be read directly by the machine. This is also the official statement of DNS
Configure the DNS service in Liunx and the DNS service in Liunx
When you Ping the host name, you can map the IP address of the host, and vice versa. Configure and specify the DNS server to quickly deploy the cluster. You do not need to modify the HOSTS file on each host to resolve the IP address and host name. In Linux, DNS
Use bind, dlz, and MySQL to build intelligent DNS. The DNS data can be put into MySQL.
Yum list all | grep BIND contains an SDB package. You can also put our data in the database.
How can I enable the DNS log function? It is not recommended to enable the log function. If the log function is enabled, the DNS performan
Every time we enter any domain name in the browser to access a website, we use the Dns protocol to perform a "Domain Name: IP" query. As a command line user, the Nslookup command is the most widely used dns-related command. As a programmer, taking c # as an example, the ip address of a domain name is probably the same as the line "System. net. dns. getHostByName
Today, the DNS system has already exceeded the originally set "Address Book" function. With the popularization of the Internet, more and more malicious intrusions and DDoS attacks have emerged. A modern DNS system should be designed to address these issues and provide end users with a fast and easy-to-use interface.The entry point for the DNS system is for the we
I don't know where you are. Anyway, I have a place called the ISP bandwidth service provider, Dr. Peng ... As the original credulous landlord said the legendary telecommunications plus the Great Wall Broadband dual service, the last to pull the landlord's net. As a result, I have never encountered my own IP address is telecommunications. Dr. Peng has always been the bar called the Great Wall broadband. I'm going to go oh ~ ~Always hijack my DNS, and,
@ Zheng yu Summary
I. symptom: Java httpclient initiates an HTTP request to the WebService interface under the x××× open. x××. com domain name from the master station data center, which is extremely slow. Troubleshooting:
1.1. wget test results No
Specify the IP protocol and the interface for wget to access it. The time is 4.163 seconds, which is basically a waste of host parsing.
If the IP protocol of the specified wget is IPv4, The wget test takes only 0.096 seconds.
1.2. WGEtCompari
Document directory
DNS structure:
Header section:
Question:
Resource Structure:
Every time we enter any domain name in the browser to access a website, we use the DNS protocol to perform a "Domain Name: IP" query. As a command line user, the NSLookup command is the most widely used DNS-related command. As a programmer, taking C # as an example, the IP add
When
NetlogonWhen the service cannot register or cancel registering multiple resource records, the System Event Log will recordNetlogon5781Error message. The event description does not contain the names of these resource records. In addition, the event description may be "no ",DNS servers are available ", note: the common cause of these errors is that the domain controller references itself as the DNS
[Daily] DNS iterative Query Process and dns query Process
DNS is an application layer protocol, and the port numbers are tcp/53 and udp/53.DNS query process, such as accessing www.test.com1. The client queries www.test.com2. query the preferred DNS server, in Linux/etc/re
In the previous blog, we described how to create a common DNS record in a DNS server, and in this article we'll show you how to configure a secondary server for DNS, as well as a stub zone similar to a secondary zone.
A DNS secondary server is a fault-tolerant design, considering that once a
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