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

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

Maybe late to the party but in my case it was RHEL 6.8:

Copy certificate.crt issued by hosting to:

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

Then:

update-ca-trust force-enable (ignore not found warnings)
update-ca-trust extract

Hope it helps

Complete instruction is as follow:

1. Extract Private Key from PFX

openssl pkcs12 -in myfile.pfx -nocerts -out private-key.pem -nodes

2. Extract Certificate from PFX

openssl pkcs12 -in myfile.pfx -nokeys -out certificate.pem

3. install certificate

yum install -y ca-certificates,

cp your-cert.pem /etc/pki/ca-trust/source/anchors/your-cert.pem ,

update-ca-trust ,

update-ca-trust force-enable

Hope to be useful