There are many solutions, such as using Windows2000 or WindowsServer2003 to provide Network Load balancing services, but the settings for this service are complex. And it is a simple method to realize Network Load Balancing through DNS server.
The author takes the Web server in the enterprise network as an example to introduce how to use the
At present, many enterprises and institutions have set up units within the LAN, the internal network are equipped with related servers (such as Web, FTP and other servers). Internal network users want all servers to use domain names to access, network administrators can use the way to build a DNS server to achieve.
Set up a DNS
Environment:
The primary Dns:win 2003 domain Master Controller zone is automatically generated by the system (abbreviation a)
Host to be installed as secondary DNS: Win 2003 is not joined to the domain (abbreviation b)
Area: region.com
Action method:
1. Open the dns--> of a to expand the server name--> the right "forward
1. Main DNS configuration files
/Etc/hosts-a list file of the Host-contains a list of known hosts (in the local network). If the system IP address is not dynamically generated, you can use it, for simple host name resolution (dot notation/Etc/host. conf-Conversion Program Control File-tells the network Domain Name Server how to find the host (usually/etc/hosts, and then the Domain Name
1. Use nslookup to determine whether a DNS resolution fault is true: (This step is to confirm whether a DNS error is caused ), to fully determine whether a DNS resolution fault exists, you must use the NSLOOKUP provided by the system.1. Choose Start> Run> enter CMD and press enter to enter the command line mode;2. Enter the nslookup command and press enter to go
the name used to search for a website on the internet. It is an important identifier on the internet and is equivalent to a host's house number. Each host corresponds to an IP address. Each IP address consists of a series of numbers, such as 101.25.11.34. In order to facilitate memory, people use domain names instead of these numbers to search for hosts, such as mydomain.com. Each domain name corresponds t
: [ OK ]starting named: [ OK ]Without any error message, it means that our bind service is up and running.This time we can test to verify that our DNS master server is configured successfully, if it is another machine, we just need to point its DNS address to my host address, here I a
Because it's all Windows platforms, it's nothing. Well, take a look at our environment:
Original DNS server:
Host name: WIN08-01 IP Address: 10.200.201.11
New DNS server (temporary hostname and IP address), because after successful migration, the host name and IP address will be changed to the same as the
Set up a DNS server on the internal network that allows users to enter the IP address of the internal network DNS server in their computed DNS server IP address. A forward, directional lookup zone is established on the
) used by the NetWare network. Gateways are also known as IP routers.What is the default gateway? The default gateway means that if a host cannot find an available gateway, it sends the packet to the default designated gateway, which handles the packet. The gateway used by the host is now generally referred to as the default gateway.DNS server:DNSRefers to the domain name server. InThe domain name on the internet is one by one corresponding to the IP
Work Assignment DescriptionCompany name is ABC company, build DNS server. Head office in Beijing, the company's registered domain name is ht.com. Your company has two branches, the first for Asian companies (Asia), the company is headquartered in Beijing, the second is a European company (Europe), please set up a DNS on the head office
relationship on the DNS server.
So when we want to bind a domain name to an IP address, we can do so by adding a resolution entry in the Hosts file.
Step one: Start-> search, and then look for files called hosts.
Step two: Of course, the reader who already knows his path can go directly to the C:\windows\ System32\Drivers\Etc directory to find the Hosts file.
, and also as a client machine, the AGS-03 is another client machine.
The configurations of the two client machines are basically the same. First, modify the network configuration file, which is stored in the/etc/sysconfig/network-scripts directory. For example, if the current network name is auto_eth1, then the corresponding configuration file path is:/etc/sysconfig/network-scripts/ifcfg-Auto_eth1, open the file, such:
Another configuration file/etc/resolv. conf records the
can be a fully qualified domain name for the computer, such as hosta.hello.company.com, and the specified query type is used to search for an address resource record through that name. The system will use DNS query as a client to the server two parts of the problem, such as "for the computer named Hostname.hello.company.com, you have address resource records?" W
DNS server is actually a domain name resolution system, the prerequisite is only that two virtual machines can ping the same can, so can be in the basic network configuration alone, or you can follow the DHCP server to practice, but we used to ping the IP address, now become ping domain name (example: Ping www.qq.com)DNS
Event Causes and analysis
This incident is a linkage event, mainly divided into two parts:
1, the Dnspod site's DNS server by more than 10Gbps traffic DDoS attack the suspect because it is the competition between the network game between the business, causing a server operators launched thousands of zombie hosts to Dnspod launched a DDoS flood attack, Causes the
Tutorial Background:The company's current network environment is accessible to all users above the internet, and the DNS used is obtained through the DHCP server, the DNS address entered on the DHCP server is a registered DNS server
Tags: file handle relative path CDC receive sbin data notation Windows ASI"The main content of this blog post"
Introduction to bind server (including Introduction to Client Tools Dig)
Configuring forward parsing DNS servers
Configure Reverse resolution DNS server
Configuring a secondary
First, you must have a domain name that belongs to you. For example: ABC.com. No domain name must first register a domain name.
Second, register a DNS domain name in the International Domain name Center to make your DNS server globally effective.
1, in the domain name registrars (such as new network, new network interconnection) of the Domain name Control Panel i
Request -----> Local/etc/hosts# If there is resolution in the host file, the parsing result of the host file will be returned without any further steps
----> Local DNS Cache# Search for the local DNS Cache. If yes, the system returns the result and there is no next step.
----> Find the first dns
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