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 ~]#
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 ~]#
