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 223.5.5.5nameserver 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 ~]#
文章图片
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::1nameserver 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 - AppStream44 kB/s | 4.3 kB00:00
CentOS-8 - Base40 kB/s | 3.9 kB00:00
CentOS-8 - Extras15 kB/s | 1.5 kB00:00
Extra Packages for Enterprise Linux Modular 8 - aarch6428 kB/s | 3.0 kB00:00
Extra Packages for Enterprise Linux 8 - aarch6447 kB/s | 4.7 kB00:00
Dependencies resolved.
========================================================================================================================
PackageArchitectureVersionRepositorySize
========================================================================================================================
Installing:
bind-utilsaarch6432:9.11.26-4.el8_4AppStream445 k
Installing dependencies:
bind-libsaarch6432:9.11.26-4.el8_4AppStream169 k
bind-libs-liteaarch6432:9.11.26-4.el8_4AppStream1.1 M
bind-licensenoarch32:9.11.26-4.el8_4AppStream102 k
fstrmaarch640.6.0-3.el8.1AppStream27 k
protobuf-caarch641.3.0-6.el8AppStream37 k
python3-bindnoarch32:9.11.26-4.el8_4AppStream149 kTransaction Summary
========================================================================================================================
Install7 PackagesTotal download size: 2.0 M
Installed size: 5.4 M
Downloading Packages:
(1/7): bind-license-9.11.26-4.el8_4.noarch.rpm714 kB/s | 102 kB00:00
(2/7): bind-libs-lite-9.11.26-4.el8_4.aarch64.rpm6.7 MB/s | 1.1 MB00:00
(3/7): fstrm-0.6.0-3.el8.1.aarch64.rpm892 kB/s |27 kB00:00
(4/7): bind-utils-9.11.26-4.el8_4.aarch64.rpm7.9 MB/s | 445 kB00:00
(5/7): protobuf-c-1.3.0-6.el8.aarch64.rpm1.2 MB/s |37 kB00:00
(6/7): python3-bind-9.11.26-4.el8_4.noarch.rpm5.0 MB/s | 149 kB00:00
(7/7): bind-libs-9.11.26-4.el8_4.aarch64.rpm714 kB/s | 169 kB00:00
------------------------------------------------------------------------------------------------------------------------
Total8.3 MB/s | 2.0 MB00:00
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.aarch641/7
Installing: fstrm-0.6.0-3.el8.1.aarch642/7
Installing: bind-license-32:9.11.26-4.el8_4.noarch3/7
Installing: bind-libs-lite-32:9.11.26-4.el8_4.aarch644/7
Installing: bind-libs-32:9.11.26-4.el8_4.aarch645/7
Installing: python3-bind-32:9.11.26-4.el8_4.noarch6/7
Installing: bind-utils-32:9.11.26-4.el8_4.aarch647/7
Running scriptlet: bind-utils-32:9.11.26-4.el8_4.aarch647/7
Verifying: bind-libs-32:9.11.26-4.el8_4.aarch641/7
Verifying: bind-libs-lite-32:9.11.26-4.el8_4.aarch642/7
Verifying: bind-license-32:9.11.26-4.el8_4.noarch3/7
Verifying: bind-utils-32:9.11.26-4.el8_4.aarch644/7
Verifying: fstrm-0.6.0-3.el8.1.aarch645/7
Verifying: protobuf-c-1.3.0-6.el8.aarch646/7
Verifying: python3-bind-32:9.11.26-4.el8_4.noarch7/7Installed:
bind-utils-32:9.11.26-4.el8_4.aarch64bind-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.aarch64protobuf-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 【【阿里云镜像】使用阿里巴巴DNS镜像源——DNS安装教程】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.INA;
;
ANSWER SECTION:
alidns.com.120INA203.119.175.226;
;
Query time: 12 msec
;
;
SERVER: 223.5.5.5#53(223.5.5.5)
;
;
WHEN: Fri Dec 03 23:29:35 CST 2021
;
;
MSG SIZErcvd: 44[root@ecs-kunpeng ~]#
