证书首先是pem格式，然后以crt为后缀格式
ubuntu上：
cp aaa.crt /usr/local/share/ca-certificates
update-ca-certificates -f
Centos 上
cp aaa.crt /etc/pki/ca-trust/source/a...
证书首先是pem格式，然后以crt为后缀格式
ubuntu上：
cp aaa.crt /usr/local/share/ca-certificates
update-ca-certificates -f
Centos 上
cp aaa.crt /etc/pki/ca-trust/source/anchors
update-ca-trust enable
update-ca-trust
If your certificate is in the extended BEGIN TRUSTED file format,then place it into the main source/ directory instead.
如果删除 update-ca-trust delete
执行update 命令为了更新 /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem 值
