CentOS

Hello,
These iptables rules can cause any performance problem for a webserver?

-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT 
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j SYN_FLOOD 
-A SYN_FLOOD -m limit --limit 5/sec --limit-burst 10 -j RETURN 
-A SYN_FLOOD -j DROP

For example, website speed decreased.

Thanks.

In proper spot those rules actually improve performance. At least some of them.

I would not be conserned about performance.
The highest priority is to have correct firewall.
Then, a working webserver configuration.

If performance appears poor, then you have to find out what makes it slow.

jlehtone wrote: ↑
2019/11/05 20:13:18
In proper spot those rules actually improve performance. At least some of them.

I would not be conserned about performance.
The highest priority is to have correct firewall.
Then, a working webserver configuration.

If performance appears poor, then you have to find out what makes it slow.

Thanks.
After these rules the website speed decreased and can't open fast!!!

CentOS

Iptables and website performance.

Iptables and website performance.

Re: Iptables and website performance.

Re: Iptables and website performance.