Pio2pio: /* Disable firewall */

2016-06-08T12:59:18Z

Disable firewall

← Older revision		Revision as of 14:59, 8 June 2016
Line 34:		Line 34:
	sudo iptables -P FORWARD ACCEPT		sudo iptables -P FORWARD ACCEPT
	sudo iptables -P OUTPUT ACCEPT		sudo iptables -P OUTPUT ACCEPT

			= Backup and restore rules =
			iptables-save > firewall.rules #dumps rules to the file. This contains all rules just missing 'iptable' word
			iptables-restore < firewall.rules #flushes memory and loads all rules from a file
			Permanent rules are in <code>/etc/sysconfig/iptables</code> file that is loaded each time system boots up.


	;ufw - the default firewall configuration tool in Ubuntu		;ufw - the default firewall configuration tool in Ubuntu
	It is developed to simplyfy iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. To disable ufw, enter:		It is developed to simplyfy iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. To disable ufw, enter:
	sudo ufw disable		sudo ufw disable

Pio2pio: Created page with "=== Disable firewall === Preview all iptables rules sudo iptables -L -n Example output piotr@ubudesk64:~$ sudo iptables -L -n [sudo] password for piotr: Chain INPUT (poli..."

2013-08-05T22:54:59Z

Created page with "=== Disable firewall === Preview all iptables rules sudo iptables -L -n Example output piotr@ubudesk64:~$ sudo iptables -L -n [sudo] password for piotr: Chain INPUT (poli..."

New page

=== Disable firewall ===
Preview all iptables rules
sudo iptables -L -n
Example output
piotr@ubudesk64:~$ sudo iptables -L -n
[sudo] password for piotr:
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:67
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:67

Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED
ACCEPT all -- 192.168.122.0/24 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Save existing firewall rules
sudo iptables-save > firewall.rules
Issue the following commands to stop firewall:
sudo iptables -X
sudo iptables -t nat -F
sudo iptables -t nat -X
sudo iptables -t mangle -F
sudo iptables -t mangle -X
sudo iptables -P INPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -P OUTPUT ACCEPT

;ufw - the default firewall configuration tool in Ubuntu
It is developed to simplyfy iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. To disable ufw, enter:
sudo ufw disable

Firewall - Revision history

Pio2pio: /* Disable firewall */

Pio2pio: Created page with "=== Disable firewall === Preview all iptables rules sudo iptables -L -n Example output piotr@ubudesk64:~$ sudo iptables -L -n [sudo] password for piotr: Chain INPUT (poli..."