Configuring Www Service Control - ZyXEL Communications ZyWall ATP series User Manual

HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol that
encrypts and decrypts web pages. Secure Socket Layer (SSL) is an application-level protocol that
enables secure transactions of data by ensuring confidentiality (an unauthorized party cannot read the
transferred data), authentication (one party can identify the other party) and data integrity (you know if
data has been changed).
It relies upon certificates, public keys, and private keys.
HTTPS on the Zyxel Device is used so that you can securely access the Zyxel Device using the Web
Configurator. The SSL protocol specifies that the HTTPS server (the Zyxel Device) must always
authenticate itself to the HTTPS client (the computer which requests the HTTPS connection with the Zyxel
Device), whereas the HTTPS client only should authenticate itself when the HTTPS server requires it to do
so (select Authenticate Client Certificates in the WWW screen). Authenticate Client Certificates is
optional and if selected means the HTTPS client must send the Zyxel Device a certificate. You must apply
for a certificate for the browser from a CA that is a trusted CA on the Zyxel Device.
Please refer to the following figure.
HTTPS connection requests from an SSL-aware web browser go to port 443 (by default) on the Zyxel
1
Device's web server.
HTTP connection requests from a web browser go to port 80 (by default) on the Zyxel Device's web
2
server.
Figure 467 HTTP/HTTPS Implementation
Note: If you disable HTTP in the WWW screen, then the Zyxel Device blocks all HTTP connection
attempts.

37.7.4 Configuring WWW Service Control

Click Configuration > System > WWW to open the WWW screen. Use this screen to specify from which
zones you can access the Zyxel Device using HTTP or HTTPS. You can also specify which IP addresses the
access can come from.
Note: Admin Service Control deals with management access (to the Web Configurator).
User Service Control deals with user access to the Zyxel Device (logging into SSL VPN for
example).
Chapter 37 System
ZyWALL ATP Series User's Guide
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