Log in to the NetScaler VPX GUI and follow the steps below to update SSL certificates.
1) Traffic Management >> SSL >> Click "Certificates"
2) Select certificate to be updated
3) Click "Update"
4) Select the checkbox "Click to update the Certificate / Key"
5) Click ▼ to the right of "Browse" button of "Certificate File Name", select Local, select new certificate
6) Click ▼ to the right of "Browse" button of "Key File Name", select Local, select a new secret key
7) If necessary, enter Password (passphrase)
8) Click "OK"
9) Confirm that Status is "Valid"
# Restarting the load balancer is unnecessary.