Hi all Well i am new to this list, and i have been trying to fix this problem for a while but i dont know what is causing this problem in the first place. i installed RH 7.2 and when i wanted to use iptables it gave me this error : /lib/modules/2.4.7-10/kernel/net/ipv4/netfilter/ip_tables.o: init_module: Device or resource busy Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters /lib/modules/2.4.7-10/kernel/net/ipv4/netfilter/ip_tables.o: insmod /lib/modules/2.4.7-10/kernel/net/ipv4/netfilter/ip_tables.o failed /lib/modules/2.4.7-10/kernel/net/ipv4/netfilter/ip_tables.o: insmod ip_tables failed iptables v1.2.5: can't initialize iptables table `filter': iptables who? (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. well it is driving me crazy i didnt do anything it is like that with a fresh install even on 7.3 and i upgraded to that version to see if it will fix it but nope no luck.. Please advice thanx Sarky