【阿里云镜像】使用阿里巴巴DNS镜像源——DNS安装教程

大宝

一、参考链接

阿里巴巴开源镜像站:阿里巴巴开源镜像站

DNS安装教程:DNS安装教程

二、DNS简介

域名系统(服务)协议(DNS)是一种分布式网络目录服务,主要用于域名与 IP 地址的相互转换,以及控制因特网的电子邮件的发送。

三、配置方法

Linux 快速配置ipv4

编辑文件 "/etc/resolv.conf",根据情况修改文件内容。

只需要添加以下两行

nameserver 223.5.5.5
nameserver 223.6.6.6

[root@ecs-kunpeng ~]# vim /etc/resolv.conf
[root@ecs-kunpeng ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search openstacklocal
#nameserver 100.125.1.250
#nameserver 100.125.129.250
options timeout:1 single-request-reopen
nameserver 223.5.5.5
nameserver 223.6.6.6
[root@ecs-kunpeng ~]#

在这里插入图片描述

Linux 快速配置ipv6

编辑文件 "/etc/resolv.conf",根据情况修改文件内容。

只需要添加以下两行

nameserver 2400:3200::1
nameserver 2400:3200:baba::1

[root@ecs-kunpeng ~]# vim /etc/resolv.conf
[root@ecs-kunpeng ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search openstacklocal
#nameserver 100.125.1.250
#nameserver 100.125.129.250
options timeout:1 single-request-reopen
nameserver 223.5.5.5
nameserver 223.6.6.6
nameserver 2400:3200::1
nameserver 2400:3200:baba::1

保存退出,然后使用 dig 验证:

若显示以下错误信息

[root@ecs-kunpeng ~]# dig alidns.com
-bash: dig: command not found
[root@ecs-kunpeng ~]#
[root@ecs-kunpeng ~]# yum provides dig
bind-utils-32:9.11.26-4.el8_4.aarch64 : Utilities for querying DNS name servers
Repo        : AppStream
Matched from:
Filename    : /usr/bin/dig

使用yum源安装bind-utils-32:9.11.26-4.el8_4.aarch64组件

[root@ecs-kunpeng ~]# yum install -y bind-utils-32:9.11.26-4.el8_4.aarch64
CentOS-8 - AppStream                                                                     44 kB/s | 4.3 kB     00:00
CentOS-8 - Base                                                                          40 kB/s | 3.9 kB     00:00
CentOS-8 - Extras                                                                        15 kB/s | 1.5 kB     00:00
Extra Packages for Enterprise Linux Modular 8 - aarch64                                  28 kB/s | 3.0 kB     00:00
Extra Packages for Enterprise Linux 8 - aarch64                                          47 kB/s | 4.7 kB     00:00
Dependencies resolved.
========================================================================================================================
 Package                       Architecture           Version                            Repository                Size
========================================================================================================================
Installing:
 bind-utils                    aarch64                32:9.11.26-4.el8_4                 AppStream                445 k
Installing dependencies:
 bind-libs                     aarch64                32:9.11.26-4.el8_4                 AppStream                169 k
 bind-libs-lite                aarch64                32:9.11.26-4.el8_4                 AppStream                1.1 M
 bind-license                  noarch                 32:9.11.26-4.el8_4                 AppStream                102 k
 fstrm                         aarch64                0.6.0-3.el8.1                      AppStream                 27 k
 protobuf-c                    aarch64                1.3.0-6.el8                        AppStream                 37 k
 python3-bind                  noarch                 32:9.11.26-4.el8_4                 AppStream                149 k

Transaction Summary
========================================================================================================================
Install  7 Packages

Total download size: 2.0 M
Installed size: 5.4 M
Downloading Packages:
(1/7): bind-license-9.11.26-4.el8_4.noarch.rpm                                          714 kB/s | 102 kB     00:00
(2/7): bind-libs-lite-9.11.26-4.el8_4.aarch64.rpm                                       6.7 MB/s | 1.1 MB     00:00
(3/7): fstrm-0.6.0-3.el8.1.aarch64.rpm                                                  892 kB/s |  27 kB     00:00
(4/7): bind-utils-9.11.26-4.el8_4.aarch64.rpm                                           7.9 MB/s | 445 kB     00:00
(5/7): protobuf-c-1.3.0-6.el8.aarch64.rpm                                               1.2 MB/s |  37 kB     00:00
(6/7): python3-bind-9.11.26-4.el8_4.noarch.rpm                                          5.0 MB/s | 149 kB     00:00
(7/7): bind-libs-9.11.26-4.el8_4.aarch64.rpm                                            714 kB/s | 169 kB     00:00
------------------------------------------------------------------------------------------------------------------------
Total                                                                                   8.3 MB/s | 2.0 MB     00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                1/1
  Installing       : protobuf-c-1.3.0-6.el8.aarch64                                                                 1/7
  Installing       : fstrm-0.6.0-3.el8.1.aarch64                                                                    2/7
  Installing       : bind-license-32:9.11.26-4.el8_4.noarch                                                         3/7
  Installing       : bind-libs-lite-32:9.11.26-4.el8_4.aarch64                                                      4/7
  Installing       : bind-libs-32:9.11.26-4.el8_4.aarch64                                                           5/7
  Installing       : python3-bind-32:9.11.26-4.el8_4.noarch                                                         6/7
  Installing       : bind-utils-32:9.11.26-4.el8_4.aarch64                                                          7/7
  Running scriptlet: bind-utils-32:9.11.26-4.el8_4.aarch64                                                          7/7
  Verifying        : bind-libs-32:9.11.26-4.el8_4.aarch64                                                           1/7
  Verifying        : bind-libs-lite-32:9.11.26-4.el8_4.aarch64                                                      2/7
  Verifying        : bind-license-32:9.11.26-4.el8_4.noarch                                                         3/7
  Verifying        : bind-utils-32:9.11.26-4.el8_4.aarch64                                                          4/7
  Verifying        : fstrm-0.6.0-3.el8.1.aarch64                                                                    5/7
  Verifying        : protobuf-c-1.3.0-6.el8.aarch64                                                                 6/7
  Verifying        : python3-bind-32:9.11.26-4.el8_4.noarch                                                         7/7

Installed:
  bind-utils-32:9.11.26-4.el8_4.aarch64  bind-libs-32:9.11.26-4.el8_4.aarch64 bind-libs-lite-32:9.11.26-4.el8_4.aarch64
  bind-license-32:9.11.26-4.el8_4.noarch fstrm-0.6.0-3.el8.1.aarch64          protobuf-c-1.3.0-6.el8.aarch64
  python3-bind-32:9.11.26-4.el8_4.noarch

Complete!
[root@ecs-kunpeng ~]#

使用 dig 验证

若返回结果的 server 为阿里公共 DNS,则配置成功。

[root@ecs-kunpeng ~]# dig alidns.com

; <<>> DiG 9.11.26-RedHat-9.11.26-4.el8_4 <<>> alidns.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57868
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;alidns.com.                    IN      A

;; ANSWER SECTION:
alidns.com.             120     IN      A       203.119.175.226

;; Query time: 12 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Fri Dec 03 23:29:35 CST 2021
;; MSG SIZE  rcvd: 44

[root@ecs-kunpeng ~]#
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