Grant wrote:
How can I find out whether I should be specifying TCP, UDP, or both
for iptables (shorewall) config?
By knowing the application's protocol for which you write the rules for :P
For example, if I write some rule that applies to traffic generated by a
web server and web browsers, that's TCP. If I write rules that apply to
an online game's matchmaking and game discovery browser, that's UDP (but
depends on the game). So you have to research a bit to see if the
application uses TCP or UDP.
