Re: Iptables rules not working

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Am 16.07.2020 um 17:48 schrieb Kaushal Shriyan:
Hi,

I am running CentOS Linux release 8.2.2004 (Core) on a remote server. I am
running the below iptables command to allow SSH port 22 from a specific
source IP 219.91.200.59

iptables -A INPUT -m tcp -p tcp -s 219.91.200.59 --dport 22 -j ACCEPT
service iptables save


The above iptables ruleset is not working and I am still able to connect
from the internet to SSH port 22. I look forward to hearing from you and
thanks in advance.

Best Regards,

Kaushal

Please consult the documentation to understand how to use the firewall on CentOS 8:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/securing_networks/index#using-and-configuring-firewalld_securing-networks

In short: you are doing it wrong in multiple dimensions.

Alexander

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