系统：Centos、Ubuntu、AlmaLinux、Rocky 其他发行版请自行测试
我们在申请证书的时候如果有根证书就需要安装
ca_bundle.crt 根证书
certificate.crt IP或域名证书
private.key 秘钥下面根据根证书演示
Centos、AlmaLinux、Rocky安装根证书
将证书复制到 /etc/pki/ca-trust/source/anchors 文件夹
cp /root/ca_bundle.crt /etc/pki/ca-trust/source/anchors/软连接证书到 /etc/ssl/certs/ 文件夹
ln -s /etc/pki/ca-trust/source/anchors/ca_bundle.crt /etc/ssl/certs/ca_bundle.crt更新系统证书
update-ca-trustUbuntu安装根证书
将证书复制到 /usr/local/share/ca-certificates 文件夹
sudo cp ca_bundle.crt /usr/local/share/ca-certificates/ca_bundle.crt更新系统证书
sudo update-ca-certificates