Hello Volker, I was very busy with studies yesterday. But I got to install firewall builder. I am a bit confused on how to use it. Will it use the existing iptables file or make a new file for it. I get some errors too. They are 1. When I start the application with command fwbuilder. [root@nessusClient root]# fwbuilder QSplitter::setProperty( "handleWidth", value ) failed: property invalid, read-only or does not exist 2. When I try to compile rules. fwb_ipt -f /root/firewallGUI/firewall.fwb -d /root/firewallGUI nessusClient Error: Failed to start program Thank You. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list