Iptables: Difference between revisions
From James's Wiki
No edit summary |
No edit summary |
||
| Line 12: | Line 12: | ||
sudo iptables -A OUTPUT -p tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT | sudo iptables -A OUTPUT -p tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT | ||
delete by number: | |||
sudo iptables -L --line-numbers | |||
sudo iptables -D INPUT 3 | |||
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 04:01, 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
delete by number:
sudo iptables -L --line-numbers
sudo iptables -D INPUT 3
references:
