Nortel Networks 4050 User Manual

574 Chapter 11 Managing certificates

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If you use the certificate index number of an installed certificate when adding a 
new certificate, the installed certificate is overwritten.

After you have installed the certificate, map it to the Nortel SNAS 4050 portal 
(see 

).

You can extract copies of certificates and keys to save as backup or to install on 
another device.

There are two ways to retrieve a certificate and key from the Nortel SNAS 4050 
cluster:

•

by copying (see 

•

by exporting to a TFTP/FTP/SCP/SFTP server (see 

 or 

)

The copy-and-paste method saves the certificate and key in PEM format.

The export method allows you to choose from a variety of file formats. Nortel 
recommends using the PKCS12 format (also known as PFX). Most web browsers 
accept importing a combined key and certificate file in the PKCS12 format. For 
more information about the formats supported on the Nortel SNAS 4050, see 

.

To update or renew an existing certificate, do not replace the existing certificate by 
using its certificate number when you generate the CSR or add the new certificate. 
Rather, keep the existing certificate until you have verified that the new certificate 
works as designed.