How to add Certificate Authority file in CentOS 7

I am trying to add certificate Authority (CA) file name - ca.crt to /etc/ssl/certs, for that I followed this article.

I copied my ca.crt file to /etc/pki/ca-trust/source/anchors/ and run the command below;

update-ca-trust extract

After that I checked /etc/pki/ca-trust/extracted/openssl/ca-bundle.trust.crt file, but I didn't find my CA.

I am not able to figure out what may be the problem.

What am I doing wrong and how can I fix it?

copy your certificates inside

/etc/pki/ca-trust/source/anchors/

then run the following command

update-ca-trust

find *.pem file and place it to the anchors sub-directory or just simply link the *.pem file to there.

yum install -y ca-certificates
update-ca-trust force-enable
sudo ln -s /etc/ssl/your-cert.pem /etc/pki/ca-trust/source/anchors/your-cert.pem
update-ca-trust

nyedidikeke

Your CA file must have been in a binary X.509 format instead of Base64 encoding; it needs to be a regular DER or PEM in order for it to be added successfully to the list of trusted CAs on your server.

To proceed, do place your CA file inside your /usr/share/pki/ca-trust-source/anchors/ directory, then run the command line below (you might need sudo privileges based on your settings);

# CentOS 7, Red Hat 7, Oracle Linux 7
update-ca-trust

Please note that all trust settings available in the /usr/share/pki/ca-trust-source/anchors/ directory are interpreted with a lower priority compared to the ones placed under the /etc/pki/ca-trust/source/anchors/ directory which may be in the extended BEGIN TRUSTED file format.

For Ubuntu and Debian systems, /usr/local/share/ca-certificates/ is the preferred directory for that purpose.

As such, you need to place your CA file within the /usr/local/share/ca-certificates/ directory, then update the of trusted CAs by running, with sudo privileges where required, the command line below;

update-ca-certificates

QUICK HELP 1: To add a certificate in the simple PEM or DER file formats to the list of CAs trusted on the system:

add it as a new file to directory /etc/pki/ca-trust/source/anchors/
run update-ca-trust extract

QUICK HELP 2: If your certificate is in the extended BEGIN TRUSTED file format (which may contain distrust/blacklist trust flags, or trust flags for usages other than TLS) then:

add it as a new file to directory /etc/pki/ca-trust/source/
run update-ca-trust extract

More detail infomation see man update-ca-trust

来源：https://stackoverflow.com/questions/37043442/how-to-add-certificate-authority-file-in-centos-7

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ssl-certificate