Kerio Tech 6 Manual Do Utilizador

8.4 Proxy server

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Figure 8.14

Setting cooperation with dynamic DNS server

On the Dynamic DNS tab, select a DDNS provider, enter DNS name for which dynamic record

will be kept updated and set user name and password for access to updates of the dynamic

record. If DDNS supports wildcards, they can be used in the host name.

Once this information is defined, it is recommended to test update of dynamic DNS record by

clicking on Update now. This verifies that automatic update works well (the server is available,

set data is correct, etc.) and also updates the corresponding DNS record (IP address of the

firewall could have changed since the registration or the last manual update).

If an error occurs while attempting to update DNS record, an error is reported on the Dynamic

DNS tab providing closer specification of the error (e.g. DDNS server is not available, user

authentication failed, etc.). This report is also recorded in the error log.

8.4 Proxy server

Even though the NAT technology used in WinRoute enables direct access to the Internet from

all local hosts, it contains a standard HTTP proxy server. Under certain conditions the direct

access cannot be used or it is inconvenient . The following list describes the most common

situations:

To connect from the WinRoute host it is necessary to use the proxy server of your ISP.

Proxy server included in WinRoute can forward all queries to so called parent proxy server).

Internet connection is performed via a dial-up and access to certain Web pages is blocked

(refer to chapter

). If a direct connection is used, the line will be dialed before the

HTTP query could be detected (line is dialed upon a DNS query or upon a client’s request

demanding connection to a Web server). If a user connects to a forbidden Web page,

WinRoute dials the line and blocks access to the page — the line is dialed but the page is

not opened.