Two Firewalls Installed

Markus Schönhaber ubuntu-users at
Thu Jun 11 12:31:03 UTC 2009

Ian Lester:

> When you install Firestarter it does not remove UFW, is this correct 
> that you should have 2 firewalls installed at the same time or should 
> UFW be removed, in no why not??

Neither firestarter nor ufw are "firewalls" but rather userland tools to
help you configure rules for netfilter, the kernel's built-in packet filter.
It does not necessarily hurt to have dozens of those tools installed.
But if more than one is executed (for example automatically during boot)
and each fiddles around with netfilter rules, the result will very
likely not be what you want or expect.


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