Iptables: Difference between revisions
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sudo dpkg-reconfigure iptables-persistent | sudo dpkg-reconfigure iptables-persistent | ||
allow ssh: | |||
sudo iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT | |||
sudo iptables -A OUTPUT -p tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT | |||
references: | references: | ||
https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands | https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands | ||
Revision as of 03:58, 25 February 2018
to save firewall rules use:
sudo dpkg-reconfigure iptables-persistent
or (stretch):
sudo dpkg-reconfigure iptables-persistent
allow ssh:
sudo iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
sudo iptables -A OUTPUT -p tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT
references:
