[Firewall] Remapping local ports
philipp_subx at redfish-solutions.com
Thu Jul 24 15:09:38 MDT 2008
I was wondering what would be involved in doing the following:
I want to take a port (X) and relocate it to another (X') and block X
externally, but allow X'.
Can we do something like:
block port X on external interface
if a packet comes in on port X', jump to another chain (EXT_REMAP)
accept port X
dnat port X' to port X
In other words, we won't allow connections directly to X to come in from
the outside, but we will allow connections to a service running locally
that is point to port X to be connected to on a remapped port...
More information about the Firewall