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Merge pull request #1067 from pi-hole/fix/firewall_redux

Fix/firewall redux
This commit is contained in:
Mcat12 2017-01-02 11:36:38 -05:00 committed by GitHub
commit 76531da340
2 changed files with 15 additions and 6 deletions

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@ -15,8 +15,11 @@
<option name="USE_RELATIVE_INDENTS" value="false" />
</value>
</option>
<MarkdownNavigatorCodeStyleSettings>
<option name="RIGHT_MARGIN" value="72" />
</MarkdownNavigatorCodeStyleSettings>
</value>
</option>
<option name="USE_PER_PROJECT_SETTINGS" value="true" />
</component>
</project>
</project>

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@ -887,11 +887,17 @@ configureFirewall() {
echo "::: Configuring FirewallD for httpd and dnsmasq.."
firewall-cmd --permanent --add-port=80/tcp --add-port=53/tcp --add-port=53/udp
firewall-cmd --reload
elif modinfo ip_tables &> /dev/null && iptables -S INPUT | head -n1 | grep -v "ACCEPT" &> /dev/null ; then
echo "::: Configuring iptables for httpd and dnsmasq.."
iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
iptables -A INPUT -p udp -m udp --dport 53 -j ACCEPT
# Check for proper kernel modules to prevent failure
elif modinfo ip_tables &> /dev/null; then
# If chain Policy is not ACCEPT or last Rule is not ACCEPT
# then check and insert our Rules above the DROP/REJECT Rule.
if iptables -S INPUT | head -n1 | grep -qv '^-P.*ACCEPT$' || iptables -S INPUT | tail -n1 | grep -qv '^-\(A\|P\).*ACCEPT$'; then
# Check chain first, otherwise a new rule will duplicate old ones
echo "::: Configuring iptables for httpd and dnsmasq.."
iptables -C INPUT -p tcp -m tcp --dport 80 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 80 -j ACCEPT
iptables -C INPUT -p tcp -m tcp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 53 -j ACCEPT
iptables -C INPUT -p udp -m udp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p udp -m udp --dport 53 -j ACCEPT
fi
else
echo "::: No active firewall detected.. skipping firewall configuration."
fi