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iptables/gui firewall ftp connection!!



Hello everyone, I have a weird firewall issue, when I manually insert a new rule to allow ftp connection through port 21 by using (iptables -A, iptables -I) it won't work and I'm unable to connect.
But when I use the GUI firewall tool to allow ftp connection it works normally, why the hell is that??
I'm using RED HAT 6 by the way!

Immediately you make change in GUI.. try to check iptables using below command what changes its made.

# iptables -L -n -v
Well i actually found the solution, that "nf_conntrack_ftp" module had to be loaded in "/etc/sysconfig/iptables-config" file.
Thank you

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