caching dns server centos

the use of extranet DNS resolution error, we can replace a different DNS server address to solve the problem. Fourth step: If the DNS server is displayed in the company's internal network address, so that your company's DNS reso

Domain Name Server saves the regional files of the specified domain.3. Slave Domain Name ServerObtain the corresponding files from the primary domain server and save them. Step 1: Check whether Bind and caching-nameserver software packages are installed.Rpm-qa | grep bindRpm-qa | grep cachingBind is the installation package of

domain name. You can write up to three addresses as the candidate dns server for the previous failure. "Domain zrs.com" specifies the default domain. File Content:Domain zrs.comNameserver 10.0.0.394. The "named. boot" file is the configuration file used by the bind software of earlier versions. Now the new version has already been stored in "named. conf ". Named. conf is the core file of

update your keys. See https://www.isc.org/bind-keys // ================================================ ======================================== DNSSEC-validation Auto; Auth-nxdomain no; # conform to rfc1035 Listen-on-v6 {Any ;}; }; Configure the primary DNS Server Create forward zone File Sudo Vim/etc/bind/named. conf. Local Add the following content [Plain]View plaincopy Zone "qyjob.net "{ Ty

;Ten }; One AZone"40.168.192.in-addr.arpa"In { - 　　 type master; - 　　 file "named.192.168.40"; theallow-update {none;}; -Allow-transfer {192.168.40.170;}; - notify yes; -};In addition, in the previous article, there are some optimizations and issues that need to be done to the DNS server, as shown in the following:1 vim/var/named/chroot/etc/named.conf 2 ~ ~ 3Options { 4 5 allow-query {any;};

these registry settings. The Hklmcurrentcontrolsetservicesdns key should only allow administrator and system accounts to access, and these accounts should have full control rights. 　　Using firewalls to control DNS access Firewalls can be used to control who can connect to your DNS server. For DNS servers that respo

Build WEB + NFS + DNS in CentOS This experiment uses two web, a php and mysql web1, 2 (172.16.31.30, 31.31) nfs 172.16.31.34 Php 172.16.31.32 mysql 172.16.31.32 Build 1. Set up web First # mount-t nfs 172.16.31.34:/mydata mount nfs The web version used in this compilation and the previous LAMP is the same. 1. Download the three packages of apr-1.5.0.tar.bz2 apr-util-1.5.3.tar.bz2 httpd-2.4.9.tar.bz2, ex

separate and additional query based on the server's answer, which is called an iteration. In summary, the DNS query process is done in two parts: first, the name query starts from the client and is routed to the resolver (DNS Client Service) for resolution, and secondly, the DNS server can be queried as needed to res

DNS, domainnamesystem, or domainnameservice (Domain Name System or multiple-Name Service ). The domain name system assigns domain name addresses and IP addresses to hosts on the Internet. When a user uses a domain name address, the system automatically converts the domain name address to an IP address. Domain Name Service is an internet tool that runs the domain name system. The server that executes the Dom

1. Universal theory The DNS servers are divided into:Master (Primary DNS server): A file that has zone data and manages the entire zone's data.Slave (from a server or a secondary server): a copy of the zone file with the primary DNS