Stopping Open DNS - FireBrick 2700: Difference between revisions

Latest revision as of 08:01, 31 October 2021

On a FireBrick 2700 the DNS service defaults to local-only - this prevents access to the FireBrick DNS resolver from the WAN by default.

The setting for this is found in the Web config editor at:

Config -> Edit -> Setup -> General system services -> DNS service settings -> local-only

The web interface of the FireBrick can list what services are open, go to

Diagnostics -> Access Check

Enter a Source IP of an IP on the Internet.

The FireBrick will then list all the services open to that IP address, e.g.:

DNS resolver access:-
This address is not on a local Ethernet subnet and so not allowed access.

@@ Line 7: / Line 7: @@
  Config -> Edit -> Setup -> General system services -> DNS service settings -> local-only
-*Then re-test from the Control Pages: https://clueless.aa.net.uk/dnsresolvers.cgi
+*Then re-test from the Control Pages: https://control.aa.net.uk/dnsresolvers.cgi
 [[File:Fb2700-dns.png|600px]]
@@ Line 16: / Line 16: @@
 The web interface of the FireBrick can list what services are open, go to
  Diagnostics -> Access Check
-Enter an Source IP of an IP on the Internet.
+Enter a Source IP of an IP on the Internet.
 The FireBrick will then list all the services open to that IP address, e.g.: