Cisco Cisco Email Security Appliance C190 Guida Utente

When the certificate authority returns the trusted public certificate signed by a 
private key, upload it by clicking on the certificate’s name on the FIPS 
Management page and entering the path to the file on your local machine or 
network. Make sure that the trusted public certificate that you receive is in PEM 
format or a format that you can convert to PEM using before uploading to the 
appliance. Uploading the certificate from the certificate authority overwrites the 
existing certificate.

For more information on obtaining certificates to use on the appliance, including 
how to import certificates and keys from a certificate authority, see 

.

After you have added a certificate to your appliance, you can use it with any of 
the following services:

SMTP receiving and delivery. Use the Network > Listeners page (or the 

listenerconfig -> edit -> certificate

 CLI command) to assign the 

certificate to any listeners that require encryption using TLS. You may want 
to only enable TLS on listeners facing the Internet (that is, public listeners), 
or you may want to enable encryption for all listeners, including internal 
systems (that is, private listeners). For more information, see 

Destination controls. Use the Mail Policies > Destination Controls page (or 
the 

destconfig

 CLI command) to assign the certificate as a global setting to 

for all outgoing TLS connections for email delivery. For information on using 
the certificate for all outgoing TLS connections, see 

Interfaces. Use the Network > IP Interfaces page (or the 

interfaceconfig

 

CLI command) to enable the certificate for HTTPS services on an interface, 
including the management interface. For information on using the certificate 
for HTTPS services on an interface, see 

.

LDAP. Use the System Administration > LDAP page to assign the certificate 
for all LDAP traffic that requires TLS connections. The appliance can also 
use LDAP for external authentication of users. For information, see