do we need always use statefull firewall by iptables or not ?!
i am new to linux firewall
i want to know if we want to have a good linux firewall always we have to do filtering stateful , or we can use stateless filtering for some connection and stateful filtering for other connection, i ask this because when we use stateful filtering connection table for every connection create an entry and search in this table cause decreasing firewall connection speed
please solve my problem