can anybody tell me the iptables config to
accept all TCP traffic originating from the firewall .
If you want all TCP traffic originating from the firewall to be accepted, then remove the line from iptables.
-m multiport --dport 80,443 -m multiport --sport 1024:65535
but becarefull when you are accepting all the traffic from net. better you need to have separate server for this all traffic accepting server and from there we need to filter and pass to internal network.
all the best.