Am 16.07.20 um 18:11 schrieb Kaushal Shriyan:
On Thu, Jul 16, 2020 at 9:25 PM Phil Perry <ppe...@elrepo.org> wrote:

On 16/07/2020 16:48, Kaushal Shriyan wrote:
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

EL8 does not use iptables by default - it's been replaced with nftables.


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Hi,

I have run the below command but I am still able to connect from the
internet. Do I need to add any drop traffic policy using nft?

  #nft add rule ip filter INPUT ip saddr 219.91.200.59/32 tcp dport 22 ct
state new,established counter accept

Any help will be highly appreciable. Thanks in advance.




Better start with firewalld, a frontend to nft

What is the output of

firewall-cmd --list-all

--
Leon
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