DNS Proxy Optional Services
Protocol : Specify the protocol name prepended with an underscore. (e.g. _tcp or _udp)
Priority : Specify the relative priority of this service (0 - 65535). Lowest is highest priority.
Weight : Specify the weight of this service. Weight is used when more than one service has the
same priority. The highest is most frequently delivered. Leave is blank or zero if no
weight should be applied.
Port : Specify the port number of the service.
Target : The hostname of the machine providing this service.
TTL : TTL (Time To Live) specifies the amount of time that SRV Record is allowed to be
cached.
MX Record
Host Name : Enter the prefix of the mail server’s domain name. For example, if domain name is
"mail.abc.com", enter “mail”.
Priority : Enter the priority of the mail servers. The higher the priority is, the lower the number
is.
Mail Server : Enter the IP address of the mail server.
External Subdomain Record
Subdomain Name : Enter the name of an external subdomain. To add an additional subdomain, press +.
NS Record :
l Name server - Enter the prefix of domain name (e.g. if the FQDN of the host
is "ns1.abc.com", enter "ns1")
l IPv4 address - Enter the corresponding IPv4 address of the domain name.
l IPv6 address - Enter the corresponding IPv6 address of the domain name.
DNS Proxy
FortiWAN’s DNS Proxy redirects a DNS request sent from LAN or DMZ to the external DNS servers with better
response time. There are two phases included in the DNS Proxy, auto routing among multiple WAN links and
redirecting a DNS request to the DNS servers specified on the WAN link. Usually, the DNS servers specified on the
WAN link are located in the ISP’s network which the WAN link connects to. Therefore, DNS Proxy routes a DNS
request to a WAN link with the best quality and sends it to the DNS servers specified on the WAN link whatever the
original destination is.
FortiWAN Handbook
Fortinet Technologies Inc.
140
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