Google's free DNS server is 8.8.8.8.8, and the secondary server is 8.8.4.4.
The primary DNS server of opendns is 208.67.222.222, and the secondary server is 208.67.220.220.
DNS in Beiji
Simple DNS Server Configuration1: Install DNS-related packagesBind-chroot-9.3.4-10.P1.el5Bind-libs-9.3.4-10.P1.el5Ypbind-1.19-11.el5Bind-utils-9.3.4-10.P1.el5Bind-9.3.4-10.P1.el5Rpm-ivhFor example: rpm-ivh ind-chroot-9.3.4-10.P1.el5 others are also installed like this.2: you also need to install a DNS reference package
There is a lot of knowledge about DNS on the Internet, I will not talk about the principle of DNS and do noun explanation here. In this article we will take an example to describe the configuration of DNS, the experimental environment is as follows: Domain name: guoxuemin.cn, subdomain: shenzhen.guoxuemin.cn primary Domain Name
Set up a dns server on centos to resolve any domain name
Function:1. Recently, the company launched a new web server, such as 111.111.111.111.Colleagues are required to test whether the server is normal. In a LAN segment, it is difficult for everyone to modify the hosts. This method can be used.For example, yumaozdy.co
Some time ago, I changed the server to using ipfilter + ipnat + dhcp -- ipfilter + ipnat packet filtering, forwarding, and DHCP server architecture notes under freebsd5.4. However, I recently felt that the server is always offline, I opened another dns Cache service on the server
DNS is a naming system that converts a human-readable domain name into a computer that can recognize IP addresses. When a domain name query request that does not exist in the parser cache appears, the conversion process is from the root server to the top-level domain name, for example. com domain name) in the entire DNS hierarchy. Next, the top-level domain name
Construction of RHEL5--DNS Server
DNS server Construction
DNS (Domain Name System) is a distributed database that maps domain names and IP addresses on the Internet, allowing users to access the Internet more conveniently, instead of remembering the number of IP address stri
controlNote: Turn off the firewall of each machine first (the virtual machine network is simply set to the bridge mode to the common network with the host)Domain Control terminal1, configure the domain control IP,ipv6 removed, because the DNS server is installed on the domain control, so the preferred DNS server compl
In the previous section we talked about the auxiliary and stub areas, so let's take a closer look at them. One, the auxiliary area About creation and functionality of secondary zones I'll explain in more detail by creating a secondary server, and I'll start working on the relevant preparations. The first two virtual servers to create a basic configuration (due to previous knowledge of the explanation, here is no longer detailed) example: computer name
computer access the Internet? Open the "local connection" attribute of the network management station, check the network settings, and find that the preferred DNS server is "202.99.160.68", and the alternative DNS server is "202.99.166.6 ", the DNS of several other servers
Tag: Restore contains port TTL run using--Manage DNS forwardingFirst, configure the basic DNS server (including forward parsing and reverse parsing)Domain Name: abc.comServer ip:10.1.2.111. Edit the Master profile/etc/named.conf----------------------------------------------------Options {Listen-on Port: (any;}; Listen-on-v6 Port 53 {:: 1;};Directory "/var/named";
As we all know, Linux does not catch up with Windows popularity and ease of use on desktop applications, but it is precisely because of its seemingly troublesome command-line operations that make it more secure than Windows, which uses a graphical interface for ease of use, This makes Linux a very popular server, especially with the well-known Apache lamp and DNS server
Here we use the Linux Bind server software for the DNS service for this test.
BKJIA Editor note: BIND is a client/server system called a conversion program. It queries the information that generates domain names and then sends the information to the server. The server is cal
DNS server on the same machine. In other words, it is because there is a DNS server on one machine that it is not improper (and often beneficial) to redirect the DNS client activity of this machine to a DNS
Garbage station bloggers are still using the WIN7 system, recently through switches and routers are always not connected to the Internet, and other computers on the network can be networked, check found that the computer desktop in the lower right corner of the internet appears yellow exclamation point, after detection prompts "Windows can not communicate with the device or resource (primary DNS server)", I
1. How to Create a DNS server on Linux: Environment assumptions
One or two machines, one LINUX, The Machine name LINUX, the domain name tongqiang. cnIP address is 192.168.0.5, the other machine is WIN98, The Machine name tongqiang, And the IP address is obtained from the DHCP server on LINUX.
2. Create a DNS serverSupp
We should remember the two large-scale network-breaking events that occurred in China in the June. After analysis, both of these network events originated from the hacker's DNS server attack on the ISP caused by the domain name resolution storm. Thus, the importance of DNS servers for network operations. Similarly, DNS
Through this server, Intranet users can access the Internet normally. Here we use the BIND provided by FreeBSD to implement DNS resolution. In fact, many DNS servers on the Internet use this software. The basic procedure is as follows:
◇The information given to me by the DNS parent domain (edu.cn) is as follows:Dom
slave server
Abc. zone. db forward statement File
Reverse file Decoding for named.192.168.10
Service configuration file:
[Root @ localhost named] # vi/etc/named. caching-nameserver.conf
//// Named. conf//// Provided by Red Hat bind package to configure the isc bind named (8) DNS// Server as a caching only nameserver (as a localhost
Build a DNS server in CentOS
DNS performs forward and reverse resolution...
Full Qualified Domain Name Security Qualified host Name = Host Name. For example, www.tar ena.com.cn
Execute the program:/usr/sbin/named service Script:/etc/init. d/named default port: TCP/UDP 53
Virtual root environment:/var/named/chroot/Master configuration file:/etc/named. conf region
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