RockyLinux9安装软件报错，RockyLinux配置阿里源

报错：

[root@localhost ~]# yum -y install nginx
Rocky Linux 9 - BaseOS                                                                                           0.0  B/s |   0  B     00:06    
Errors during downloading metadata for repository 'baseos':
  - Curl error (60): SSL peer certificate or SSH remote key was not OK for https://mirrors.rockylinux.org/mirrorlist?arch=x86_64&repo=BaseOS-9 [SSL certificate problem: certificate is not yet valid]
Error: Failed to download metadata for repo 'baseos': Cannot prepare internal mirrorlist: Curl error (60): SSL peer certificate or SSH remote key was not OK for https://mirrors.rockylinux.org/mirrorlist?arch=x86_64&repo=BaseOS-9 [SSL certificate problem: certificate is not yet valid]

解决办法：配置阿里源：

 sed -e 's|^mirrorlist=|#mirrorlist=|g' -e 's|^#baseurl=http://dl.rockylinux.org/$contentdir|baseurl=https://mirrors.aliyun.com/rockylinux|g' -i.bak /etc/yum.repos.d/rocky*.repo