虛擬機初始化時需要做的幾件事。
Centos7
1、配置IP
vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=“Ethernet”
BOOTPROTO=“static”
NAME=“ens33”
DEVICE=“ens33”
ONBOOT=“yes”
IPADDR=192.168.100.4
NETMASK=255.255.255.0
DNS1=192.168.100.2
GATEWAY=192.168.100.2
systemctl restart network
ping www.baidu.com
備註：使用的NAT網絡，192.168.100.1是本機的虛擬網卡的IP，192.168.100.2是vmware中網卡的IP？有待商榷。總之，網關和DNS要使用192.168.100.2。配置完成後本機可使用xshell或securitycrt來連接虛擬機進行下面的步驟。
2、配置yum倉庫
cd /etc/yum.repos.d/
mv CentOS-Base.repo CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
sed -i -e ‘/mirrors.cloud.aliyuncs.com/d’ -e ‘/mirrors.aliyuncs.com/d’ /etc/yum.repos.d/CentOS-Base.repo #非阿里雲的ECS
mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup
mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.backup
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum clean all
yum install chrony
yum update
yum makecache
3、時間同步
vim /etc/chrony.conf
server ntp1.aliyun.com
server ntp2.aliyun.com
server ntp3.aliyun.com
systemctl restart chronyd
4、selinux，firewalld，
sed -i ‘/^SELINUX/s/enforcing/disabled/’ /etc/selinux/config
selinux需要重啓後纔會生效
systemctl stop firewalld.service
systemctl disable firewalld.service
5、Docker-ce
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install -y docker-ce
6、其他
阿里鏡像網站
https://developer.aliyun.com/mirror/