【阿里云镜像】使用阿里巴巴DNS镜像源——DNS配置教程

@TOC

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

  1. [root@ecs-kunpeng ~]# vim /etc/resolv.conf
  2. [root@ecs-kunpeng ~]# cat /etc/resolv.conf
  3. # Generated by NetworkManager
  4. search openstacklocal
  5. #nameserver 100.125.1.250
  6. #nameserver 100.125.129.250
  7. options timeout:1 single-request-reopen
  8. nameserver 223.5.5.5
  9. nameserver 223.6.6.6
  10. [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

  1. [root@ecs-kunpeng ~]# vim /etc/resolv.conf
  2. [root@ecs-kunpeng ~]# cat /etc/resolv.conf
  3. # Generated by NetworkManager
  4. search openstacklocal
  5. #nameserver 100.125.1.250
  6. #nameserver 100.125.129.250
  7. options timeout:1 single-request-reopen
  8. nameserver 223.5.5.5
  9. nameserver 223.6.6.6
  10. nameserver 2400:3200::1
  11. 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

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

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

  1. [root@ecs-kunpeng ~]# yum install -y bind-utils-32:9.11.26-4.el8_4.aarch64
  2. CentOS-8 - AppStream                                                                     44 kB/s | 4.3 kB     00:00
  3. CentOS-8 - Base                                                                          40 kB/s | 3.9 kB     00:00
  4. CentOS-8 - Extras                                                                        15 kB/s | 1.5 kB     00:00
  5. Extra Packages for Enterprise Linux Modular 8 - aarch64                                  28 kB/s | 3.0 kB     00:00
  6. Extra Packages for Enterprise Linux 8 - aarch64                                          47 kB/s | 4.7 kB     00:00
  7. Dependencies resolved.
  8. ========================================================================================================================
  9.  Package                       Architecture           Version                            Repository                Size
  10. ========================================================================================================================
  11. Installing:
  12.  bind-utils                    aarch64                32:9.11.26-4.el8_4                 AppStream                445 k
  13. Installing dependencies:
  14.  bind-libs                     aarch64                32:9.11.26-4.el8_4                 AppStream                169 k
  15.  bind-libs-lite                aarch64                32:9.11.26-4.el8_4                 AppStream                1.1 M
  16.  bind-license                  noarch                 32:9.11.26-4.el8_4                 AppStream                102 k
  17.  fstrm                         aarch64                0.6.0-3.el8.1                      AppStream                 27 k
  18.  protobuf-c                    aarch64                1.3.0-6.el8                        AppStream                 37 k
  19.  python3-bind                  noarch                 32:9.11.26-4.el8_4                 AppStream                149 k
  21. Transaction Summary
  22. ========================================================================================================================
  23. Install  7 Packages
  25. Total download size: 2.0 M
  26. Installed size: 5.4 M
  27. Downloading Packages:
  28. (1/7): bind-license-9.11.26-4.el8_4.noarch.rpm                                          714 kB/s | 102 kB     00:00
  29. (2/7): bind-libs-lite-9.11.26-4.el8_4.aarch64.rpm                                       6.7 MB/s | 1.1 MB     00:00
  30. (3/7): fstrm-0.6.0-3.el8.1.aarch64.rpm                                                  892 kB/s |  27 kB     00:00
  31. (4/7): bind-utils-9.11.26-4.el8_4.aarch64.rpm                                           7.9 MB/s | 445 kB     00:00
  32. (5/7): protobuf-c-1.3.0-6.el8.aarch64.rpm                                               1.2 MB/s |  37 kB     00:00
  33. (6/7): python3-bind-9.11.26-4.el8_4.noarch.rpm                                          5.0 MB/s | 149 kB     00:00
  34. (7/7): bind-libs-9.11.26-4.el8_4.aarch64.rpm                                            714 kB/s | 169 kB     00:00
  35. ------------------------------------------------------------------------------------------------------------------------
  36. Total                                                                                   8.3 MB/s | 2.0 MB     00:00
  37. Running transaction check
  38. Transaction check succeeded.
  39. Running transaction test
  40. Transaction test succeeded.
  41. Running transaction
  42.   Preparing        :                                                                                                1/1
  43.   Installing       : protobuf-c-1.3.0-6.el8.aarch64                                                                 1/7
  44.   Installing       : fstrm-0.6.0-3.el8.1.aarch64                                                                    2/7
  45.   Installing       : bind-license-32:9.11.26-4.el8_4.noarch                                                         3/7
  46.   Installing       : bind-libs-lite-32:9.11.26-4.el8_4.aarch64                                                      4/7
  47.   Installing       : bind-libs-32:9.11.26-4.el8_4.aarch64                                                           5/7
  48.   Installing       : python3-bind-32:9.11.26-4.el8_4.noarch                                                         6/7
  49.   Installing       : bind-utils-32:9.11.26-4.el8_4.aarch64                                                          7/7
  50.   Running scriptlet: bind-utils-32:9.11.26-4.el8_4.aarch64                                                          7/7
  51.   Verifying        : bind-libs-32:9.11.26-4.el8_4.aarch64                                                           1/7
  52.   Verifying        : bind-libs-lite-32:9.11.26-4.el8_4.aarch64                                                      2/7
  53.   Verifying        : bind-license-32:9.11.26-4.el8_4.noarch                                                         3/7
  54.   Verifying        : bind-utils-32:9.11.26-4.el8_4.aarch64                                                          4/7
  55.   Verifying        : fstrm-0.6.0-3.el8.1.aarch64                                                                    5/7
  56.   Verifying        : protobuf-c-1.3.0-6.el8.aarch64                                                                 6/7
  57.   Verifying        : python3-bind-32:9.11.26-4.el8_4.noarch                                                         7/7
  59. Installed:
  60.   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
  61.   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
  62.   python3-bind-32:9.11.26-4.el8_4.noarch
  64. Complete!
  65. [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。

  1. [root@ecs-kunpeng ~]# dig alidns.com
  3. ; <<>> DiG 9.11.26-RedHat-9.11.26-4.el8_4 <<>> alidns.com
  4. ;; global options: +cmd
  5. ;; Got answer:
  6. ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57868
  7. ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
  9. ;; QUESTION SECTION:
  10. ;alidns.com.                    IN      A
  12. ;; ANSWER SECTION:
  13. alidns.com.             120     IN      A       203.119.175.226
  15. ;; Query time: 12 msec
  16. ;; SERVER: 223.5.5.5#53(223.5.5.5)
  17. ;; WHEN: Fri Dec 03 23:29:35 CST 2021
  18. ;; MSG SIZE  rcvd: 44
  20. [root@ecs-kunpeng ~]#

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