Avoiding The Browser Warning Messages; Figure 230 Security Certificate 1 (Netscape); Figure 231 Security Certificate 2 (Netscape) - ZyXEL Communications ZYWALL 2 PLUS User Manual

Chapter 21 Remote Management

Figure 230 Security Certificate 1 (Netscape)

Figure 231 Security Certificate 2 (Netscape)

21.4.3 Avoiding the Browser Warning Messages

The following describes the main reasons that your browser displays warnings about the
ZyWALL's HTTPS server certificate and what you can do to avoid seeing the warnings.
• The issuing certificate authority of the ZyWALL's HTTPS server certificate is not one of
the browser's trusted certificate authorities. The issuing certificate authority of the
ZyWALL's factory default certificate is the ZyWALL itself since the certificate is a self-
signed certificate.
• For the browser to trust a self-signed certificate, import the self-signed certificate into
your operating system as a trusted certificate.
• To have the browser trust the certificates issued by a certificate authority, import the
certificate authority's certificate into your operating system as a trusted certificate.
Refer to
• The actual IP address of the HTTPS server (the IP address of the ZyWALL's port that you
are trying to access) does not match the common name specified in the ZyWALL's
HTTPS server certificate that your browser received. Do the following to check the
common name specified in the certificate that your ZyWALL sends to HTTPS clients.
360
Appendix F on page 627
• Click REMOTE MGMT. Write down the name of the certificate displayed in
the Server Certificate field.
for details.
ZyWALL 2 Plus User's Guide