Q: How to verify serial number of certificates hosted on NetScaler?

A: Each certification authority maintains a list of unique serial number for the certificates it has issued. To verify the serial number:

Using NetScaler Shell

1. Log on to NetScaler using PuTTY.
2. Type shell.
3. Go to the /nsconfig/ssl directory and execute the following command:
   #openssl x509 -in /nsconfig/ssl/<cert_name>.crt -text -noout | grep Serial

Using NetScaler Graphical User Interface

To view the serial number of the certificate, navigate to Configuration > Traffic Management > SSL > Server Certificates > Action > Details