ContOS

1、启用网络

配置网络随服务启动而启用

路径

cd /etc/sysconfig/network-scripsts/

修改

vi ifcfg-ens33

然后重启网络

sudo systemctl restart network

2、修改yum源

1、备份yum源
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2、下载阿里yum源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
 
3、清空yum源
yum clean all

4、生成yum源缓存
yum makecache

5、查看yum源
yum repolist

6、更新yum软件包
yum -y update

阿里源内容

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
 
[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

3、更新系统时间，配置时区

1、同步时间
yum install ntp   # 安装 ntp
ntpdate ntp3.aliyun.com   # 同步时间，这里以阿里云3号服务器为例，你可以根据需要选择其他服务器
date   # 查看时间
2、修改时区
查看可用时区列表：
timedatectl list-timezones
找到您想要设置的时区，然后使用以下命令进行设置：
sudo timedatectl set-timezone your_time_zone
将 your_time_zone 替换为您从列表中选择的时区，例如 Asia/Shanghai。
验证更改是否成功，使用以下命令查看当前时区：
timedatectl status
这是一个示例，如果您想将时区设置为 Asia/Shanghai：
sudo timedatectl set-timezone Asia/Shanghai

4、安装ifconfig

sudo yum install net-tools

5、防火墙配置

暂时关闭防火墙。重启失效
sudo systemctl stop firewalld
永久关闭防火墙
sudo systemctl disable firewalld

放开端口
firewall-cmd --zone=public --add-port=8080/tcp --permanent
关闭端口
firewall-cmd --zone=public --remove-port=8080/tcp --permanent
查看已经放开的端口
firewall-cmd --zone=public --list-ports

重新加载防火墙以应用更改：
sudo firewall-cmd --reload

查看防火墙作用再那个网卡
firewall-cmd --get-active-zones

6、设置静态IP

/etc/sysconfig/network-scripts

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPADDR=192.168.1.111
NETMASK=255.255.254.0
GATEWAY=192.168.1.254
DNS1=114.114.114.114
DNS2=8.8.8.8

IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=dc06c90b-46b2-404d-9858-7cf57f3e3f6d
DEVICE=ens33
ONBOOT=yes