Whenever you upgrade your operating system (OS), you will need to CAC-enable (i.e. Public Key Enable) the system all over again. You should refer to the instructions and downloads available from the web pages under Getting Started for End Users (Mac) on DISA's Information Assurance Support Environment (IASE) website. You will need middleware to use your CAC on OS X. The instructions on IASE will direct you to Smartcard Services (middleware) downloads from Mac OS forge. Smartcard Services will work for most CACs and readers, however, if you do not see your CAC keychain in the Keychain Access.app after installing the Smartcard Services package and inserting your CAC in the card reader, then I recommend using another free middleware called Centrify Express.
Note: To install the certificate, users must have admin privileges on their client systems. From the browser, open the directory in which you downloaded the root cert file. Double-click the certificate. You are prompted to store the certificate in the login keychain or the system keychain.
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Aside from installing middleware, you need to download and import the DoD Root and Intermediate Certificates in your Keychain Access. Most of the DoD certificates are available if you add the 'SystemCACertificates' keychain using the File > Add Keychain option and navigating through the folders to Macintosh HD > System > Library > Keychains. You need to download and import a few certificates into the 'login' keychain, such as DOD ROOT CA 2 (3 certificates total), DOD ROOT CA 3, and any intermediate certificates that issued the certificates on your CAC, which are greater than DOD CA-30 (such as DOD CA-31, DOD EMAIL CA-31, DOD CA-32, DOD EMAIL CA-32, DOD ID CA-33, DOD EMAIL CA-33, DOD ID CA-34, DOD EMAIL CA-34, etc.). Go to the Cross-Certificate Chaining Issue page to download two zip files (i.e.Certificates_PKCS7_v4.1u4_DoD.zip and unclass-irca1_dodroot_ca2.zip, then use the File > Import Certificate option to add the certificates to the 'login' keychain. All DoD Intermediate Certificates are available for download (one-by-one) from the DoD PKI Management website at https://crl.gds.disa.mil/ (download the Certificate Authority Certificate, not the Certificate Revocation List, i.e. CRL) for each certificate.
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Someday you may need to get the SSL certificate of a website and save it locally.
For example, you could get an error saying that you can’t clone a Git repository due to a self-signed certificate and to resolve this issue you would need to download the SSL certificate and make it trusted by your Git client.
In the following article i am showing how to export the SSL certificate from a server (site URL) using Google Chrome, Mozilla Firefox and Internet Explorer browsers as well as how to get SSL certificate from the command line, using openssl
command.
Cool Tip: Create a self-signed SSL Certificate! Read more →
Export the SSL certificate of a website using Google Chrome:
Secure
button (a padlock) in an address barShow certificate
buttonDetails
tabExport
buttonSave
buttonExport the SSL certificate of a website using Mozilla Firefox:
Site Identity
button (a padlock) in an address barShow connection details
arrowMore Information
buttonView Certificate
buttonDetails
tabExport
buttonSave
buttonCool Tip: Check the expiration date of the SSL Certificate from the Linux command line! The fastest way! Read more →
Download and save the SSL certificate of a website using Internet Explorer:
Security report
button (a padlock) in an address barView Certificate
buttonDetails
tabCopy to File..
buttonNext
buttonNext
buttonNext
and the Finish
buttonsGet the SSL certificate of a website using openssl
command:
Short explanation:
Option | Description |
---|---|
-connect HOST:PORT | The host and port to connect to |
-servername NAME | The TLS SNI (Server Name Indication) extension (website) |
certificate.crt | Save SSL certificate to this file |
Example: