Hi
I found a very weird problem.
I am using Firewall-1 v4.1 Linux(Standard Installation)
I first of all denied all traffic to the firewall, but allowed any traffic
from the firewall (testing) hoping that the pseudo rules would allow DNS
through (they were activated) however, when it came to doing any lookups on
the firewall it wouldn't work as the pseudo rules had no effect. All
traffic was still being denied, including DNS. I then did some testing and
found that the firewall was communicating on port 1031 UDP to the DNS
servers. Which is not the standard 53 TCP/UDP. To get DNS lookups to work I
had to add a rule
DNS Servers firewall Service_1031_UDP accept .............etc
Can anyone explain this to me?
Thanks
Richard Mayhew
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