Ubuntu添加可信任根证书

文章引用自：Ubuntu添加可信任根证书

添加

Ubuntu下添加根证书非常简单, 只要将证书(扩展名为crt)复制到/usr/local/share/ca-certificates文件夹然后运行

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update-ca-certificates

即可

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[yaxin@ubox ~]$sudo cp xinmu.crt /usr/local/share/ca-certificates
[yaxin@ubox ~]$sudo update-ca-certificates
Updating certificates in /etc/ssl/certs... 1 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d....done.

删除

直接将/usr/local/share/ca-certificates对应的证书删除，然后执行

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update-ca-certificates

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[yaxin@ubox ~]$sudo rm -f /usr/local/share/ca-certificates/xinmu.crt
[yaxin@ubox ~]$sudo update-ca-certificates
Updating certificates in /etc/ssl/certs... 0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d....done.

注意: 这时候并不会提示1 removed, 但证书是已经被删除了的

原理

其实

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update-ca-certificates

是一个shell脚本, 使用

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which

找出

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update-ca-certificates

的绝对路径，然后打开就可以查看其源码

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[yaxin@ubox ~]$which update-ca-certificates
/usr/sbin/update-ca-certificates
[yaxin@ubox ~]$file /usr/sbin/update-ca-certificates
/usr/sbin/update-ca-certificates: POSIX shell script, ASCII text executable

通过阅读源码可以看出,

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update-ca-certificates

命令的本质其实是将PEM格式的根证书内容附加到/etc/ssl/certs/ca-certificates.crt, 而/etc/ssl/certs/ca-certificates.crt中本身就包含了系统自带的各种可信根证书.

文章引用自：Ubuntu添加可信任根证书