On Monday 22 February 2021 at 16:39:12, Federico Fanton via Dng wrote:
> On 22/02/21 16:29, Steve Litt wrote:
> > 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.
>
> To completely reset the firewall, see this script:
>
> #!/usr/bin/env bash
> set -eu
> declare -A chains=(
> [filter]=INPUT:FORWARD:OUTPUT
> [raw]=PREROUTING:OUTPUT
> [mangle]=PREROUTING:INPUT:FORWARD:OUTPUT:POSTROUTING
> [security]=INPUT:FORWARD:OUTPUT
> [nat]=PREROUTING:INPUT:OUTPUT:POSTROUTING
> )
> for table in "${!chains[@]}"; do
> echo "${chains[$table]}" | tr : $"\n" | while IFS= read -r; do
> iptables -t "$table" -P "$REPLY" ACCEPT
> done
> iptables -t "$table" -F
> iptables -t "$table" -X
> done
I do not understand the purpose of $REPLY in that script.
> (from https://gist.github.com/x-yuri/da5de61959ae118900b685fed78feff1 )
No explanation of anything there... :(
Antony.
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