ZyXEL Communications 5 Series User Manual
Chapter 20 Certificates
ZyWALL 5/35/70 Series User’s Guide
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Figure 241 SECURITY > CERTIFICATES > Trusted CAs
The following table describes the labels in this screen.
Table 119 SECURITY > CERTIFICATES > Trusted CAs
LABEL
DESCRIPTION
PKI Storage
Space in Use
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.
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.
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.
(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.
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.
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.
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.
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.