Iptables - Revision history

Drew at 07:56, 25 January 2018

2018-01-25T07:56:56Z

← Older revision		Revision as of 01:56, 25 January 2018
Line 1:		Line 1:
	For desktop host, only allow tunnel		=For desktop host, only allow tunnel=
	<~~pre~~>iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT		<syntaxhighlight lang=bash>
			iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
	iptables -A INPUT -p icmp -j ACCEPT		iptables -A INPUT -p icmp -j ACCEPT
	iptables -A INPUT -i lo -j ACCEPT		iptables -A INPUT -i lo -j ACCEPT
Line 11:		Line 12:
	iptables -A OUTPUT -d 192.168.1.0/24 -j ACCEPT		iptables -A OUTPUT -d 192.168.1.0/24 -j ACCEPT
	iptables -A OUTPUT -d forwarding_host_ip/32 -j ACCEPT		iptables -A OUTPUT -d forwarding_host_ip/32 -j ACCEPT
	iptables -A OUTPUT -d 0.0.0.0/0 -j REJECT</~~pre~~>		iptables -A OUTPUT -d 0.0.0.0/0 -j REJECT
			</syntaxhighlight>


	On router		=On router=
	<~~pre~~>iptables -I INPUT 1 -s 192.168.1.142 -p udp --dport 53 -j REJECT		<syntaxhighlight lang=bash>
			iptables -I INPUT 1 -s 192.168.1.142 -p udp --dport 53 -j REJECT
	iptables -I FORWARD 1 -s 192.168.1.142 -d 70.87.42.50 -p tcp --dport 1123 -j ACCEPT		iptables -I FORWARD 1 -s 192.168.1.142 -d 70.87.42.50 -p tcp --dport 1123 -j ACCEPT
	iptables -I FORWARD 2 -s 192.168.1.142 -j REJECT</~~pre~~>		iptables -I FORWARD 2 -s 192.168.1.142 -j REJECT
			</syntaxhighlight>

	Server		=Server=
	<~~pre~~>cat /etc/sysconfig/iptables		<syntaxhighlight lang=bash>
			cat /etc/sysconfig/iptables
	# Firewall configuration written by system-config-firewall		# Firewall configuration written by system-config-firewall
	# Manual customization of this file is not recommended.		# Manual customization of this file is not recommended.
Line 44:		Line 49:
	-A INPUT -j REJECT --reject-with icmp-host-prohibited		-A INPUT -j REJECT --reject-with icmp-host-prohibited
	-A FORWARD -j REJECT --reject-with icmp-host-prohibited		-A FORWARD -j REJECT --reject-with icmp-host-prohibited
	COMMIT</~~pre~~>		COMMIT
			</syntaxhighlight>

Drew at 06:07, 15 June 2011

2011-06-15T06:07:41Z

← Older revision		Revision as of 00:07, 15 June 2011
Line 30:		Line 30:
	-A INPUT -p icmp -j ACCEPT		-A INPUT -p icmp -j ACCEPT
	-A INPUT -i lo -j ACCEPT		-A INPUT -i lo -j ACCEPT

	-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT		-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
	-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT		-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT

	-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 123 -j ACCEPT		-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 123 -j ACCEPT
			-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 514 -j ACCEPT

	-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 139 -j ACCEPT		-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 139 -j ACCEPT
	~~-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT~~
	-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 445 -j ACCEPT		-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 445 -j ACCEPT
	~~-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 514 -j ACCEPT~~
	-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 2049 -j ACCEPT		-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 2049 -j ACCEPT

	-A INPUT -j REJECT --reject-with icmp-host-prohibited		-A INPUT -j REJECT --reject-with icmp-host-prohibited
	-A FORWARD -j REJECT --reject-with icmp-host-prohibited		-A FORWARD -j REJECT --reject-with icmp-host-prohibited
	COMMIT</pre>		COMMIT</pre>

Drew at 06:06, 15 June 2011

2011-06-15T06:06:29Z

← Older revision		Revision as of 00:06, 15 June 2011
Line 18:		Line 18:
	iptables -I FORWARD 1 -s 192.168.1.142 -d 70.87.42.50 -p tcp --dport 1123 -j ACCEPT		iptables -I FORWARD 1 -s 192.168.1.142 -d 70.87.42.50 -p tcp --dport 1123 -j ACCEPT
	iptables -I FORWARD 2 -s 192.168.1.142 -j REJECT</pre>		iptables -I FORWARD 2 -s 192.168.1.142 -j REJECT</pre>

			Server
			<pre>cat /etc/sysconfig/iptables
			# Firewall configuration written by system-config-firewall
			# Manual customization of this file is not recommended.
			*filter
			:INPUT ACCEPT [0:0]
			:FORWARD ACCEPT [0:0]
			:OUTPUT ACCEPT [0:0]
			-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
			-A INPUT -p icmp -j ACCEPT
			-A INPUT -i lo -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
			-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 123 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 139 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 445 -j ACCEPT
			-A INPUT -m state --state NEW -m udp -p udp -s 192.168.1.0/24 --dport 514 -j ACCEPT
			-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.1.0/24 --dport 2049 -j ACCEPT
			-A INPUT -j REJECT --reject-with icmp-host-prohibited
			-A FORWARD -j REJECT --reject-with icmp-host-prohibited
			COMMIT</pre>

Drew: Created page with "For desktop host, only allow tunnel

iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A INPUT -p icmp -j ACCEPT iptables -A INPUT -i lo -j ACCEPT i..."

2011-04-18T00:50:15Z

Created page with "For desktop host, only allow tunnel <pre>iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A INPUT -p icmp -j ACCEPT iptables -A INPUT -i lo -j ACCEPT i..."

New page

For desktop host, only allow tunnel
<pre>iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p icmp -j ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state NEW -p tcp --dport ssh -j ACCEPT
iptables -A INPUT -j REJECT

iptables -A FORWARD -j DROP

iptables -A OUTPUT -p udp --dport 53 -j REJECT
iptables -A OUTPUT -d 192.168.1.0/24 -j ACCEPT
iptables -A OUTPUT -d *forwarding_host_ip*/32 -j ACCEPT
iptables -A OUTPUT -d 0.0.0.0/0 -j REJECT</pre>

On router
<pre>iptables -I INPUT 1 -s 192.168.1.142 -p udp --dport 53 -j REJECT
iptables -I FORWARD 1 -s 192.168.1.142 -d 70.87.42.50 -p tcp --dport 1123 -j ACCEPT
iptables -I FORWARD 2 -s 192.168.1.142 -j REJECT</pre>