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Chapter 18 Certificates
NWA-3500/NWA-3550 User’s Guide
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18.5  Trusted CAs Screen
Use this screen to view the list of trusted certificates. The NWA accepts any valid 
certificate signed by a certification authority on this list as being trustworthy. You 
do not need to import any certificate that is signed by any certification authority 
on this list.
Click Certificates > Trusted CAs to open the Trusted CAs screen. The following 
figure displays.  
Figure 134   Certificates > Trusted CAs
The following table describes the labels in this screen.
Table 70   Trusted CAs
LABEL
DESCRIPTION
PKI Storage 
Space in Use
This bar displays the percentage of the NWA’s PKI storage space that is 
currently in use. When you are using 80% or less of the storage space, 
the bar is green. When the amount of space used is over 80%, the bar 
is red. When the bar is red, you should consider deleting expired or 
unnecessary certificates before adding more certificates.
Trusted CA Certificates
#
This field displays the certificate index number. The certificates are 
listed in alphabetical order. 
Name
This field displays the name used to identify this certificate. 
Subject
This field displays identifying information about the certificate’s owner, 
such as CN (Common Name), OU (Organizational Unit or department), 
O (Organization or company) and C (Country). It is recommended that 
each certificate have unique subject information.
Issuer
This field displays identifying information about the certificate’s issuing 
certification authority, such as a common name, organizational unit or 
department, organization or company and country. With self-signed 
certificates, this is the same information as in the Subject field.
Valid From
This field displays the date that the certificate becomes applicable. The 
text displays in red and includes a Not Yet Valid! message if the 
certificate has not yet become applicable.
Valid To
This field displays the date that the certificate expires. The text displays 
in red and includes an Expiring! or Expired! message if the certificate is 
about to expire or has already expired.