On Mon, 22 Feb 2021 10:29:50 -0500
Steve Litt <sl...@troubleshooters.com> wrote:
> Hi all,
>
> I could probably web search this, but there's soooo much contradictory
> stuff on the web, and I've been doing nothing but web searching for a
> week now, and probably one of you knows it off the top of your head.
>
> On a Devuan machine, how do I turn off the firewall entirely, so all
> ports are accessible? I need to do this for experimentation, not as a
> permanent thing.
I usually use iptables-persistent to manage the firewall, which is very
handy in your case, as you can have several rulesets and just activate
the currently preferred one by executing
$ iptables-restore < /path/to/ruleset
resp.
$ ip6tables-restore < /path/to/ruleset
For the case I want to "disable" the firewall, I have a ruleset with
only the default rules set to "ACCEPT". Reverting to the previous state
(or any other ruleset) is done accordingly by just restoring the
previously 'iptables-save'd config.
When working remotely, using a terminal multiplexer (or just 'dtach'),
with a simple oneliner script including the 'sleep' command it is easy
to test a new configuration without the risk of permanently locking
oneself out of the system:
$ iptables-restore < testconfig && \
sleep 120 ; \
iptables-restore < provenconfig
libre Grüße,
Florian
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