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设置静态网络
1、设置静态网络,一是用来不让地址飘忽不定,二来是为了访问外网。
命令如下:- [root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
复制代码 修改内容:- TYPE="Ethernet"
- BOOTPROTO="static" # 设置为静态网络static。
- DEFROUTE="yes"
- PEERDNS="yes"
- PEERROUTES="yes"
- IPV4_FAILURE_FATAL="no"
- IPV6INIT="yes"
- IPV6_AUTOCONF="yes"
- IPV6_DEFROUTE="yes"
- IPV6_PEERDNS="yes"
- IPV6_PEERROUTES="yes"
- IPV6_FAILURE_FATAL="no"
- IPV6_ADDR_GEN_MODE="stable-privacy"
- NAME="ens33"
- UUID="66f9933b-54eb-4156-81f4-8cb3f344124b"
- DEVICE="ens33"
- ONBOOT="yes"
- IPADDR="192.168.43.2" # 配置跟宿主机联网的同网段IP地址
- NETMASK="255.255.255.0" # 配置子网掩码
- GATEWAY="192.168.43.1" # 配置宿主机的网关
- DNS1="8.8.8.8" # 配置DNS解析服务器
复制代码 2、重启网络服务。- [root@localhost ~]# systemctl restart network
复制代码 3、查看IP地址是否已经更改。- [root@localhost ~]# ip add
- 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
- link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
- inet 127.0.0.1/8 scope host lo
- valid_lft forever preferred_lft forever
- inet6 ::1/128 scope host
- valid_lft forever preferred_lft forever
- 2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
- link/ether 00:0c:29:b2:e5:54 brd ff:ff:ff:ff:ff:ff
- inet 192.168.43.2/24 brd 192.168.43.255 scope global ens33 # 可以查看这里IP地址已经更改
- valid_lft forever preferred_lft forever
- inet6 2409:890c:39b0:630:1427:b41a:753c:ef8d/64 scope global noprefixroute dynamic
- valid_lft 3472sec preferred_lft 3472sec
- inet6 fe80::e458:494f:e11c:bbe8/64 scope link
- valid_lft forever preferred_lft forever
- 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
- link/ether 52:54:00:cd:f3:96 brd ff:ff:ff:ff:ff:ff
- inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
- valid_lft forever preferred_lft forever
- 4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
- link/ether 52:54:00:cd:f3:96 brd ff:ff:ff:ff:ff:ff
复制代码 4、验证网络是否联通。- [root@localhost ~]# ping www.baidu.com
- PING www.a.shifen.com (39.156.66.18) 56(84) bytes of data.
- 64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=1 ttl=50 time=51.6 ms
- 64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=2 ttl=50 time=69.3 ms
- 64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=3 ttl=50 time=57.5 ms
复制代码 关闭防火墙
1、关闭防火墙,防止以后服务会被防火墙挡掉。- [root@localhost ~]# iptables -F
- [root@localhost ~]# systemctl stop firewalld
- [root@localhost ~]# systemctl disable firewalld
- Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
- Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
- [root@localhost ~]# systemctl status firewalld
- ● firewalld.service - firewalld - dynamic firewall daemon
- Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
- Active: inactive (dead)
- Docs: man:firewalld(1)
- Mar 16 02:52:21 localhost.localdomain systemd[1]: Starting firewalld - dynami....
- Mar 16 02:52:27 localhost.localdomain systemd[1]: Started firewalld - dynamic....
- Mar 16 03:45:13 localhost.localdomain systemd[1]: Stopping firewalld - dynami....
- Mar 16 03:45:18 localhost.localdomain systemd[1]: Stopped firewalld - dynamic....
- Hint: Some lines were ellipsized, use -l to show in full.
复制代码 关闭selinux
1、临时关闭selinux。- [root@localhost ~]# getenforce
- Enforcing
- [root@localhost ~]# setenforce 0
- [root@localhost ~]# getenforce
- Permissive
复制代码 2、永久关闭selinux。
执行命令:- [root@localhost ~]# vim /etc/selinux/config # 这两种配置文件效果一样,任选其一。
- [root@localhost ~]# vim /etc/sysconfig/selinux
复制代码 修改内容:- # This file controls the state of SELinux on the system.
- # SELINUX= can take one of these three values:
- # enforcing - SELinux security policy is enforced.
- # permissive - SELinux prints warnings instead of enforcing.
- # disabled - No SELinux policy is loaded.
- # SELINUX=enforcing # 注释第一行即可
- # SELINUXTYPE= can take one of three two values:
- # targeted - Targeted processes are protected,
- # minimum - Modification of targeted policy. Only selected processes are protected.
- # mls - Multi Level Security protection.
- # SELINUXTYPE=targeted # 注释这一行即可
复制代码 修改主机名
修改命令如下:- [root@localhost ~]# hostnamectl set-hostname K8s-master
- [root@localhost ~]# bash
- [root@k8s-master ~]#
复制代码 配置主机和IP地址映射关系
1、修改配置文件。
执行命令:- [root@k8s-master ~]# vim /etc/hosts
复制代码 添加内容:- 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
- ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
- K8s-master 192.168.43.2 # 前面是主机名,后面是对应IP
- K8s-node01 192.168.43.3
- K8s-node02 192.168.43.4
复制代码 2、重载配置文件。- [root@k8s-master ~]# systemctl daemon-reload
复制代码 配置网络yum源
阿里云Centos7镜像下载地址:Centos7地址
1、安装wget工具。- [root@k8s-master ~]# yum -y install wget
复制代码 2、备份本地源。- [root@k8s-master ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
复制代码 3、下载阿里云镜像源。- [root@k8s-master ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
复制代码 4、生成缓存。- [root@k8s-master ~]# yum makecache
复制代码 5、安装epel扩展源(可以搜到更多的包)。- [root@k8s-master ~]# yum install -y epel-release
复制代码 来源:https://www.cnblogs.com/Bookcict/p/17224025.html
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