创建一台虚拟机

1.安装VM

2.修改VMware网络

1)点击VMware的“虚拟网络编辑器” - “VMnet8” - “更改设置” - 子网IP:10.4.7.0/子网掩码:255.255.255.0
2)在上边1点的界面:“点击NAT设置” - 网关IP:10.4.7.254
3)“控制面板” - “网络和共享中心” - “更改适配设置”- “VMnet8” - “ipv4属性” - IP:10.4.7.1/子网掩码:255.255.255.0 - “高级” - 自动跃点:10

2.修改centos网络

~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE="Ethernet"
BOOTPROTO="none"
NAME="eth0"
DEVICE="eth0"
ONBOOT="yes"
IPADDR=10.4.7.12
NETMASK=255.255.255.0
GATEWAY="10.4.7.254"
DNS1="10.4.7.254"
~]# systemctl restart network
~]# hostnamectl set-hostname hdss7-12.host.com

如需修改网卡名则
~]# mv ifcfg-xxx ifcfg-eth0
~]# vi /etc/default/grub
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos_hadoop2/root rd.lvm.lv=centos_hadoop2/swap rhgb quiet net.ifnames=0 biosdevname=0"
~]# grub2-mkconfig -o /boot/grub2/grub.cfg
~]# reboot

修改主机名
~]# hostnamectl set-hostname XXX

3. 验证SELinux是否关闭

~]# getenforce
Disabled
~]# vi /etc/sysconfig/selinux
修改 SELINUX=disabled

4.验证内核版本,是否>3.8

~]# uname -a
Linux hdss7-200.host.com 3.10.0-1062.el7.x86_64 #1 SMP Wed Aug 7 18:08:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

5.关闭firewalld

/]# systemctl status firewalld
~ ]# systemctl stop firewalld
~ ]# systemctl disable firewalld
~ ]# systemctl list-unit-files | grep enabled --查看开机启动的列表
~ ]# systemctl is-enabled firewalld.service --查看是否开机启动

6.chrony同步服务器时间

1、安装 yum -y install chrony
2、启动:systemctl start chronyd 开机启动:systemctl enable chronyd 查看服务状态:systemctl status chronyd
3、配置chrony:vi /etc/chrony.conf #server 0.centos.pool.ntp.org iburst #server 1.centos.pool.ntp.org iburst #server 2.centos.pool.ntp.org iburst #server 3.centos.pool.ntp.org iburst server ntp.aliyun.com iburst 4.重启systemctl restart chronyd
5.校验时间 chronyc tracking

6.运行以下命令查看时间同步服务器列表。
chronyc -n sources -v

 

posted @ 2023-03-26 16:07  江曹  阅读(129)  评论(0编辑  收藏  举报