[Linux] install DNS domain name resolution service, linuxdns domain name resolution

[Linux] install DNS domain name resolution service, linuxdns domain name resolution

• In Linux, DNS is implemented using bind.
• Hardware and Configuration:

Machine IP Address	Machine name	Purpose
10.190.60.5	Hadoop01.ftgov	DNS host
10.190.60.6	Hadoop02.ftgov	DNS Client
10.190.60.7	Hadoop03.ftgov	DNS Client

Procedure

• Install bind

Command: yum-y install bind-utils bind-chroot

• Modify/etc/named. conf access permission

Command: vim/etc/named. conf

• Modify the/etc/named. rfc1912.zones file and add the forward and reverse resolution configurations.

Command: vim/etc/named. rfc1912.zones

Resolution: zone "ftgov" IN {// type master is being resolved when the input is similar to "ftgov" suffix such as hadoop01.ftgov; // This is the dns host file "named.ftgov.com "; // The resolution file will read the domain name and IP ing configuration of the named.ftgov.com file in the/var/named directory (generated later) allow-update {none ;};}; zone "60.190.10.in-addr. arpa "IN {// anti-resolution when the input is similar to" 10.190.60.xxx ". Pay attention to the Address Sequence type master; file" named.10.190.60.zone "; // The Reverse file is located in the configuration of named.10.190.60.zone in the/var/named directory (generated later) allow-update {none ;};};

• Generate the forward and reverse file required for the above Configuration
  • Open the directory cd/var/named
  • Generate file named.ftgov.com
  • • Configure named.ftgov.com
    • 
      
    • Generate file named.10.190.60.zone
    • Configuration

• Configure other DNS clients

1. First Use ifconfig to check which Nic is used by the current client, such as my host: eth1 Nic
2. Modify the file vim/etc/sysconfig/network-scripts/ifcfg-eth1 // specifically change to the last line of your current Nic name plus a line of DNS host IP 3. Restart the client network SERVICE
Command: service network restart 4. other clients perform the same operation

• Start the DNS server

Run the command: service named start to check whether the service is normal: tail-n 30/var/log/messages | grep named

• Test DNS Service

Positive result: reverse result: