Hello PLUG, I am setting up a red hat 8 linux box and am having problems setting up a firewall. The ipchains and ipfwadm commands don't work with error messages: # ipchains -L ipchains: Incompatible with this kernel # ipchains -M -L ipchains: cannot open file `/proc/net/ip_masquerade' # /sbin/ipfwadm Generic IP Firewall Chains not in this kernel It seems I must do something with the kernel (which is 2.4). Also I cannot create a ip_masquerade file (read only permissions on directories) Can anyone send me in the right direction? Thanks, Dan