ZyXEL Communications ZyWALL 2 Plus - Manual (Page 311)

Chapter 15 Certificates
ZyWALL 2 Plus User’s Guide
311
Figure 205 SECURITY > CERTIFICATES > Trusted CAs
The following table describes the labels in this screen.
Table 83 SECURITY > CERTIFICATES > Trusted CAs
LABEL DESCRIPTION
PKI Storage
Space in Use
This bar displays the percentage of the ZyWALL’s PKI storage space that is
currently in use. When the storage space is almost full, you should consider
deleting expired or unnecessary certificates before adding more 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.
CRL Issuer This field displays Yes if the certification authority issues CRL (Certificate
Revocation Lists) for the certificates that it has issued and you have selected the
Check incoming certificates issued by this CA against a CRL check box in the
certificate’s details screen to have the ZyWALL check the CRL before trusting any
certificates issued by the certification authority. Otherwise the field displays No.
Modify Click the details icon to open a screen with an in-depth list of information about the
certificate.
Use the export icon to save the certificate to a computer. Click the icon and then
Save in the File Download screen. The Save As screen opens, browse to the
location that you want to use and click Save.
Click the delete icon to remove the certificate. A window displays asking you to
confirm that you want to delete the certificates. Note that subsequent certificates
move up by one when you take this action.