First, this was super helpful so thank you. I'm stuck on the following command:
iptables -A INPUT -p tcp -s localhost --dport 3000 -j ACCEPT
I get the following error:
iptables v1.8.2 (nf_tables): unknown option "--dport"
I tried going to the iptables documentation and they have similar commands like the following so not sure why the first one doesn't work:
iptables -A INPUT -p tcp -s 15.15.15.0/24 --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
iptables-legacy -A INPUT -p tcp -s localhost --dport 3000 -j ACCEPT iptables-legacy -A INPUT -p tcp --dport 3000 -j DROP
this works for me
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First, this was super helpful so thank you. I'm stuck on the following command:
iptables -A INPUT -p tcp -s localhost --dport 3000 -j ACCEPTI get the following error:
iptables v1.8.2 (nf_tables): unknown option "--dport"I tried going to the iptables documentation and they have similar commands like the following so not sure why the first one doesn't work:
iptables -A INPUT -p tcp -s 15.15.15.0/24 --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPTiptables-legacy -A INPUT -p tcp -s localhost --dport 3000 -j ACCEPT
iptables-legacy -A INPUT -p tcp --dport 3000 -j DROP
this works for me