K8S(一)——集群部署

声明:安装来自视频https://www.bilibili.com/video/BV1PJ411h7Sw?p=13

一、集群规划如图:

所用机器:CentOS7 minial,所有机器均为网卡nat模式

 

一、安装epel源,关闭防火墙和selinux

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

二、安装必要工具

yum install wget net-tools telnet tree nmap sysstat lrzsz dos2unix bind-utils -y

三、DNS初始化

1.在10.4.7.11主机安装

yum install -y bind

 2.配置DNS

主配置文件
vim /etc/named.conf // 修改 listen-on port 53 { 10.4.7.11; }; // listen-on-v6 port 53 { ::1; }; allow-query { any; }; forwarders { 10.4.7.254; }; // 上级DNS,此处指向网关 dnssec-enable no; dnssec-validation no;
配置区域文件 vim /etc/named.rfc1912.zones // 添加
  zone "host.com" IN {    type master;     file "host.com.zone";     allow-update { 10.4.7.11; };   };   zone "xyly.com" IN { type master; file "xyly.com.zone"; allow-update { 10.4.7.11; }; };
配置数据文件 cp -a /var/named/named.localhost /var/named/host.com.zone
vim /var/named/host.com.zone
  $TTL 600        ; 10 minutes
  @       IN SOA  dns.host.com. dnsadmin.host.com. (
                                          2020051400      ; serial
                                          1D              ; refresh
                                          1H              ; retry
                                          1W              ; expire
                                          3H )            ; minimum
          NS      dns.host.com.
  $TTL 60 ; 1 minute
  dns     A       10.4.7.11
  SX7-11  A       10.4.7.11
  SX7-12  A       10.4.7.12
  SX7-21  A       10.4.7.21
  SX7-22  A       10.4.7.22
  SX7-200 A       10.4.7.200
cp -a /var/named/named.localhost /var/named/xyly.com.zone
vim /var/named/xyly.com.zone
  $ORIGIN xyly.com.
  $TTL 600        ; 10 minutes
  @       IN SOA  dns.xyly.com.  dnsadmin.xyly.com. (
                                        2020051401      ; serial
                                        1D              ; refresh
                                        1H              ; retry
                                        1W              ; expire
                                        3H )            ; minimum
          NS      dns.xyly.com.
  $TTL 60 ; 1 minute
  dns     A       10.4.7.11

启动服务
 systemctl start named

 3.测试DNS

dig -t A sx7-12.host.com @10.4.7.11 +short

4.配置DNS客户端(所有机器均需修改)

sed -i '/^DNS/s/254/11/'  /etc/sysconfig/network-scripts/ifcfg-ens32
systemctl restart network
sed -i '1asearch host.com ' /etc/resolv.conf

测试结果

 

posted @ 2020-05-14 22:34  跑起来啊  阅读(322)  评论(0编辑  收藏  举报