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# Regenerating your Marketplace Certificate

On rare occasions, you may need to regenerate ArcMC's certificate with the ArcSight Marketplace. This can sometimes be displayed as a "Host Certificate Mismatch" error.

To regenerate your Marketplace certificate in ArcMC:

1. Delete the existing marketplace certificate in ArcMC.

For software form factor:

    rm –rf <install_dir>/current/arcsight/arcmc/config/certs/marketplace.microfocus.com

For ArcMC appliance:

    rm –rf /opt/arcsight/arcmc/config/certs/marketplace.microfocus.com

1. Download the new Marketplace certificate in your browser. Browse to the Marketplace website (https://microfocus.com/marketplace). A security exception will be noted.

1. Click More Information, then click View Certificate

Note: The exact procedure for downloading the certificate will depend on your browser. The procedure given here applies to Firefox. Consult your browser documentation for exact steps.

1. On the Details tab, click Export, and save the certificate as X.509 Certificate (PEM).
2. Save the downloaded certificate at the following location:

For software form factor:

    <install_dir>/current/arcsight/arcmc/config/certs

For ArcMC appliance:

    /opt/arcsight/arcmc/config/certs

1. Restart the ArcMC web service.