whats dns server

DNS Overview: DNS is the domain Name System, which is a distributed database, organized into a domain hierarchy of the structure of the computer and Network service naming system. Its role is: to transform the domain name into a network can identify the IP address, the results of the query to save, and told the client. Second, DNS query process 1. Local resolut

DNS server is not unfamiliar to everyone, the site to do the domain name resolution to the corresponding IP address so as to achieve the purpose of resolution. Webmaster daily to do the station outside the optimization, select the site server and whether the DNS will become a hidden in the site behind the killer? The s

Reference URL: http://www.unixmen.com/dns-server-installation-step-by-step-using-centos-6-3/DNS (Domain name System) translates host names or URLs into IP addresses. For example, if "www.unixmen.com" is in the browser,DNS server translates the domain name into an IP address

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 th

About the dns resolution and mx record of the email server! How do I make MX resolution records for domain names? --------------------------------------------------------------------------------Most SMTP requests an MX record to point to a host name. Therefore, specify an MX record to a host name instead of an IP address. For example, to set 218.5.1.249

One, the type of DNS server①Primary DNS Server (Master)A domain's master server holds the zone configuration file for that domain, and all of the configuration and changes are made on that server, and this essay explains how to co

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

Ubuntu's network parameters are saved in the file/etc/network/interfaces,The default setting uses DHCP, which is obtained by dynamic IP. Here's how to set up a static IP: 1) Edit/etc/network/interfaces1.1) Add DHCP line shield # The primary network Interfaceauto eth0#iface eth0 inet DHCP 1.2) Add and static IP parameters # The primary network interfaceiface eth0 inet staticaddress 192.168.1,151netmask 255.255.255.0gateway 192.168.1.12) Edit/etc/resolv.conf, set

Final preparations for Lync Server===dns Record Preparation1) Turn off the IPV6 of all servers first650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M00/84/8E/wKiom1eUf1miflHuAABAZDcZSGk894.png "style=" float: none; "title=" 2016-07-24_102936.png "alt=" Wkiom1euf1miflhuaabazdczsgk894.png "/>2). Pool.jacksi.win (If you have two servers in the pool, you need to create two pool.jacksi.win and then point

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/7E/7A/wKiom1cBTPeBv6k-AAIxxaH4J80280.jpg "title=" The interaction between the empty justifying and the DNS Space station box. jpg "alt=" wkiom1cbtpebv6k-aaixxah4j80280.jpg "/>This article is from the "flag, MO" blog, please be sure to keep this source http://mflag.blog.51cto.com/6969164/1760001Interaction diagram between guest/user and DNS

Article Title: explores the running status of the Linux System DNS server. 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. In Linux, it also provides a popular BIND server, which is the most commonly used

Primary DNS Server Setupbuild a domain name server that manages the hngd.com domain name on this machine1. Ensure that the following bind domain name servers are installed[[email protected] Master ~]# rpm-qa |grep ^bindbind-chroot-9.8.2-0.17.rc1.el6.x86_64bind-libs-9.8.2-0.17.rc1.el6.x86_64bind-9.8.2-0.17.rc1.el6.x86_64bind-utils-9.8.2-0.17.rc1.el6.x86_642. In th

Believe that on weekdays, many friends have encountered the DNS server did not respond to the problem, then what is the cause of this failure? And how should we solve it? The DNS server supports multi-line parsing, especially for operators with multiple export lines. DNS se

Article Title: LINUX Study Notes: DNS server settings. 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. Install and learn REDHAT LINUX7.0 half a month ago. As a newbie to Linux, I encountered some inevitable problems. By reading books and materials, viewing BBS, I tried t

DNS server is responsible for the work of domain name resolution, its importance is self-evident. If there is a problem with the DNS server in the network or if the information data is lost, the server will not be able to complete the domain name parsing work. Therefore, you

The service provided by the DNS server is the task of converting the host name and domain name to an IP address. Why do I need to convert the hostname and domain name to an IP address? This is because when a client on a network accesses a resource on a server, the user enters the browser's address bar with the easy to remember host name and domain name. The conne

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is more intuitive and easier for users to remember than making the 01231317202103 7 a a month.DNS system in the networkThe role is to maintain a number of addresses are connected, which recorded a variety of h

DNS CacheWhat is a DNS cache?The dns server can cache DNS records received from other DNS servers. can also use caching in DNS customer service as a way to cache information cached by

{192.168.200.103; }; };Modify the listener address of the master profile "/etc/named.conf" from the server and allow the query address to any,To modify a zone file:[Email protected] yum.repos.d]# vim/etc/Named.rfc1912.zones Zone"dns.com"In {type slave; Masters {192.168.200.102; }; File"Slaves/slave.dns.com.zone"; 　　}; Zone"200.168.192.in-addr.arpa"{type slave; Masters {192.168.200.102; }; File"Slaves/slave.192.168.200.arpa"; };Add to boot start item

1, the concept of universal Domain name resolution: If the user login mageedu.com, input error, input ww.mageedu.com, mageedu.com NS Server is unable to judge ww this domain name. So in order to prevent this error. The configuration of the NS server for a small web site can be defined in an item *.mageedu.com. To boot the user who entered the error can also access the site. But some of the big Web sites