Application Security KodeKloud


Question: Allow all incoming traffic to Nginx 8096 port and Block to Apache 5004 port


Login to backup server and add these two rules

sudo iptables -A INPUT -p tcp --dport 8096 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT

sudo iptables -A INPUT -p tcp --dport 5004 -m conntrack --ctstate NEW -j REJECT

Then save it by typing following command

sudo iptables-save > /etc/sysconfig/iptables

Now, check if the rules are added or not

cat /etc/sysconfig/iptables

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About Ashadullah Shawon

I am Ashadullah Shawon. I am a Software Engineer. I studied Computer Science and Engineering (CSE) at RUET. I Like To Share Knowledge. Learn More: Click Here
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  1. when I went to save the IP tables "sudo iptables-save > /etc/sysconfig/iptables" it said I did not have permissions, went in with VI and manually added. success.

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