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pihole

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This commit is contained in:
wvr
2026-02-10 14:38:00 -06:00
parent 3c0ee7c2be
commit 0fee49d36e
7 changed files with 139 additions and 0 deletions
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5
pihole/clear_logs.sh Executable file
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#!/bin/sh
systemctl stop pihole-FTL
rm -f /etc/pihole/pihole-FTL.db
systemctl start pihole-FTL

5
pihole/edit-hosts.sh Executable file
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#!/bin/sh
nvim /etc/pihole/pihole.toml
rc-service pihole-FTL restart

9
pihole/gravity.sh Executable file
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#!/bin/sh -x
sh ~/nuke-iptables.sh
pihole -g
sh ~/iptables-pihole.sh
echo
echo "DONE."

90
pihole/iptables-pihole.sh Executable file
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#!/bin/sh
#
# mitchs iptables pihole config
# -------------------------------------------
# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
# variables
# -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
SUBNET=192.168.100
PIHOLE=$SUBNET.200
# =/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=/=
# flush
iptables -F
# deny all default
iptables -P OUTPUT DROP
iptables -P INPUT DROP
iptables -P FORWARD DROP
# dns to/from pihole (self)
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p tcp --dport 53 -m state --state NEW
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p tcp --sport 53 -m state --state NEW
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p udp --dport 53 -m state --state NEW
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p udp --sport 53 -m state --state NEW
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --dport 53 -m state --state ESTABLISHED,RELATED
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --sport 53 -m state --state ESTABLISHED,RELATED
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p udp --dport 53 -m state --state ESTABLISHED,RELATED
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p udp --sport 53 -m state --state ESTABLISHED,RELATED
# -----------------------------------------------------------
# dns to/from 9.9.9.9
iptables -A OUTPUT -j ACCEPT -d 9.9.9.9/24 -p tcp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A OUTPUT -j ACCEPT -d 9.9.9.9/24 -p udp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 9.9.9.9/24 -p tcp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 9.9.9.9/24 -p udp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
# and quad9s alt
iptables -A OUTPUT -j ACCEPT -d 149.112.112.112/24 -p tcp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A OUTPUT -j ACCEPT -d 149.112.112.112/24 -p udp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 149.112.112.112/24 -p tcp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 149.112.112.112/24 -p udp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
# dns.watch
iptables -A OUTPUT -j ACCEPT -d 84.200.68.80/24 -p tcp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A OUTPUT -j ACCEPT -d 84.200.68.80/24 -p udp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 84.200.68.80/24 -p tcp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 84.200.68.80/24 -p udp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
# dns.watch alt
iptables -A OUTPUT -j ACCEPT -d 84.200.70.40/24 -p tcp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A OUTPUT -j ACCEPT -d 84.200.70.40/24 -p udp --dport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 84.200.70.40/24 -p tcp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
iptables -A INPUT -j ACCEPT -s 84.200.70.40/24 -p udp --sport 53 -m state --state NEW,ESTABLISHED,RELATED
# -----------------------------------------------------------
# permit local ssh
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p tcp --dport ssh -m state --state NEW
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p tcp --sport ssh -m state --state NEW
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --sport ssh -m state --state ESTABLISHED
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --dport ssh -m state --state ESTABLISHED
# permit outgoing http,https,ftp as well for updates and things
iptables -A OUTPUT -j ACCEPT -p tcp --dport 80 -m state --state NEW,ESTABLISHED
iptables -A OUTPUT -j ACCEPT -p tcp --dport 443 -m state --state NEW,ESTABLISHED
iptables -A OUTPUT -j ACCEPT -p tcp --dport 21 -m state --state NEW,ESTABLISHED
# allow pihole ftl
iptables -A INPUT -s $SUBNET.0/24 -j ACCEPT -p tcp --dport 80 -m state --state NEW
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --sport 80 -m state --state ESTABLISHED
# allow telnet ftl api (port 4711)
# ----- important: but only originating from our localhost outbound; not in
iptables -A INPUT -s 127.0.0.1/24 -j ACCEPT -p tcp --dport 4711 -m state --state NEW
iptables -A OUTPUT -d $SUBNET.0/24 -j ACCEPT -p tcp --sport 4711 -m state --state ESTABLISHED
# permit loopback
iptables -A OUTPUT -j ACCEPT -o lo
# permit established
iptables -A INPUT -j ACCEPT -m state --state ESTABLISHED,RELATED
# save
if command -v systemctl >/dev/null 2>&1 ; then
if [ -f /etc/sysconfig/iptables ] ; then
iptables-save -f /etc/sysconfig/iptables
elif [ -f /etc/iptables/iptables.rules ] ; then
iptables-save -f /etc/iptables/iptables.rules
fi
elif command -v rc-service >/dev/null 2>&1 ; then
/etc/init.d/iptables save
fi

0
pihole/lists.md → pihole/lists/lists.md
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23
pihole/nuke-iptables.sh Executable file
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#!/bin/sh
#
# https://github.com/mitchweaver
#
# ever bork your iptable config and need
# to rule out it being the problem?
#
ip6tables --policy INPUT ACCEPT;
ip6tables --policy OUTPUT ACCEPT;
ip6tables --policy FORWARD ACCEPT;
ip6tables -Z; # zero counters
ip6tables -F; # flush rules
ip6tables -X; # delete all chains
iptables --policy INPUT ACCEPT;
iptables --policy OUTPUT ACCEPT;
iptables --policy FORWARD ACCEPT;
iptables -Z; # zero counters
iptables -F; # flush rules
iptables -X; # delete all chains

7
pihole/update-pihole.sh Executable file
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#!/bin/sh
apk update
apk upgrade --force-missing-repositories
pihole -up