Installing a Gandi Commercial Certificate on ZCS

Revision as of 12:17, 30 March 2015 by Jorge de la Cruz (talk | contribs)
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This article applies to the following ZCS versions.

ZCS 7.0 Article ZCS 7.0 ZCS 6.0 Article ZCS 6.0

Everything as root ...

  • First copy all your gandi certificates, for instance in /tmp/gandi

Gandi is not a top level Certifying Authority, so we need some extra certificates

       aptitude install ca-certificates

  • Create a bundle with user trust CA file and the Gandi CA file
       cd /tmp/gandi
       cat /etc/ssl/certs/UTN_USERFirst_Hardware_Root_CA.pem GandiStandardSSLCA.pem > GandiBundle.pem

  • Backup the SSL commercial directory, then erase it
       cd /opt/zimbra/ssl/zimbra/commercial/
       tar -czvf /tmp/ssl.commercial.tar.gz *
       rm  *

  • Copy the required files in the directory /opt/zimbra/ssl/zimbra/commercial/
        #commercial.csr ( the certificate signing request that you sent to gandi ) 
        cp /tmp/gandi/ commercial.csr
        # commercial.key ( your private key )
        cp /tmp/gandi/ commercial.key
        # commercial_ca.crt( bundle created above ) 
        cp /tmp/gandi/GandiBundle.pem commercial_ca.crt
        # Verify our Gandi Certificate against the private key
        /opt/zimbra/bin/zmcertmgr verifycrt comm commercial.key /tmp/gandi/ 
        ** Verifying /tmp/gandi/ against commercial.key
        Certificate (/tmp/gandi/ and private key (commercial.key) match.
        Valid Certificate: /tmp/gandi/ OK
        # Verify our Gandi Certificate against the Certificate Authority Chain
        /opt/zimbra/bin/zmcertmgr verifycrtchain commercial_ca.crt /tmp/gandi/ 
        Valid Certificate Chain: /tmp/gandi/ OK
        # Deploy our Gandi Certificate
        /opt/zimbra/bin/zmcertmgr deploycrt comm /tmp/gandi/ commercial_ca.crt 
        ** Verifying /tmp/gandi/ against /opt/zimbra/ssl/zimbra/commercial/commercial.key
        Certificate (/tmp/gandi/ and private key (/opt/zimbra/ssl/zimbra/commercial/commercial.key) match.
        Valid Certificate: /tmp/gandi/ OK
        ** Copying /tmp/gandi/ to /opt/zimbra/ssl/zimbra/commercial/commercial.crt
        ** Appending ca chain commercial_ca.crt to /opt/zimbra/ssl/zimbra/commercial/commercial.crt
        cp: `commercial_ca.crt' and `/opt/zimbra/ssl/zimbra/commercial/commercial_ca.crt' are the same file
        ** Saving server config key zimbraSSLCertificate...failed.
        ** Saving server config key zimbraSSLPrivateKey...failed.
        ** Installing mta certificate and key...done.
        ** Installing slapd certificate and key...done.
        ** Installing proxy certificate and key...done.
        ** Creating pkcs12 file /opt/zimbra/ssl/zimbra/jetty.pkcs12...done.
        ** Creating keystore file /opt/zimbra/mailboxd/etc/keystore...done.
        ** Installing CA to /opt/zimbra/conf/ca...done.
  • Restart the zimbra and have a look at the log:
        /etc/init.d/zimbra restart ;  tail -f /opt/zimbra/log/*.log

cause: PKIX path building failed: unable to find valid certification path to requested target Install Gandi SSL CA in the java keystore ( according to Thanks Yvon ! )

        /opt/zimbra/java/bin/keytool -alias GandiStandardSSLCA -importcert -trustcacerts -keystore /opt/zimbra/java/jre/lib/security/cacerts -storepass changeit -file /tmp/gandi/GandiStandardSSLCA.pem
  • Gandi people if you read this please send me a t-shirt :) You can contact me to via the talk page.

Verified Against: unknown Date Created: 2/1/2010
Article ID: Date Modified: 2015-03-30

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