【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

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

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 NetworkManagersearch openstacklocal#nameserver 100.125.1.250#nameserver 100.125.129.250options timeout:1 single-request-reopennameserver 223.5.5.5nameserver 223.6.6.6nameserver 2400:3200::1nameserver 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 digbind-utils-32:9.11.26-4.el8_4.aarch64 : Utilities for querying DNS name serversRepo        : AppStreamMatched 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.aarch64CentOS-8 - AppStream                                                                     44 kB/s | 4.3 kB     00:00CentOS-8 - Base                                                                          40 kB/s | 3.9 kB     00:00CentOS-8 - Extras                                                                        15 kB/s | 1.5 kB     00:00Extra Packages for Enterprise Linux Modular 8 - aarch64                                  28 kB/s | 3.0 kB     00:00Extra Packages for Enterprise Linux 8 - aarch64                                          47 kB/s | 4.7 kB     00:00Dependencies resolved.======================================================================================================================== Package                       Architecture           Version                            Repository                Size========================================================================================================================Installing: bind-utils                    aarch64                32:9.11.26-4.el8_4                 AppStream                445 kInstalling 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 kTransaction Summary========================================================================================================================Install  7 PackagesTotal download size: 2.0 MInstalled size: 5.4 MDownloading 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     00:00Running transaction checkTransaction check succeeded.Running transaction testTransaction 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                                                         7/7Installed:  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.noarchComplete![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 ~]#