ZyXEL Communications 2 Plus User Manual

Chapter 15 Certificates

ZyWALL 2 Plus User’s Guide

Click SECURITY > CERTIFICATES > Directory Servers to open the Directory Servers 
screen. This screen displays a summary list of directory servers (that contain lists of valid and 
revoked certificates) that have been saved into the ZyWALL. If you decide to have the 
ZyWALL check incoming certificates against the issuing certification authority’s list of 
revoked certificates, the ZyWALL first checks the server(s) listed in the CRL Distribution 
Points field of the incoming certificate. If the certificate does not list a server or the listed 
server is not available, the ZyWALL checks the servers listed here.

Figure 211   SECURITY > CERTIFICATES > Directory Servers

The following table describes the labels in this screen.  

Apply

Click Apply to save the certificate on the ZyWALL.

Cancel

Click Cancel to quit and return to the Trusted Remote Hosts screen.

Table 88   SECURITY > CERTIFICATES > Trusted Remote Hosts > Import

Table 89   SECURITY > CERTIFICATES > Directory Servers

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.

#

The index number of the directory server. The servers are listed in alphabetical 

order.

Name

This field displays the name used to identify this directory server. 

Address

This field displays the IP address or domain name of the directory server.

Port

This field displays the port number that the directory server uses.

Protocol

This field displays the protocol that the directory server uses.