centos7基本常用配置

镜像配置

sudo vi /etc/yum.repos.d/CentOS-Base.repo

[base]
name=CentOS-$releasever - Base - Aliyun
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#released updates 
[updates]
name=CentOS-$releasever - Updates - Aliyun
baseurl=http://mirrors.aliyun.com/centos/$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-$releasever - Extras - Aliyun
baseurl=http://mirrors.aliyun.com/centos/$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-$releasever - Plus - Aliyun
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

sudo yum clean all
sudo yum makecache

配置中文

localedef -c -f UTF-8 -i zh_CN zh_CN.UTF-8
export LC_ALL=zh_CN.UTF-8
echo 'LANG="zh_CN.UTF-8"' > /etc/locale.conf

时间同步

rpm -qa | grep ntp
yum -y install ntp ntpdate
systemctl status ntpd
systemctl start ntpd
ntpdate ntp.aliyun.com

crontab时间生成器

crontab在线生成器 - kjson在线工具