Re: Firewall config and ftp server

On 03/11/2010 08:17 AM, Edward. S. P. Leong wrote:
  

Rick Stevens wrote:
    

On 03/09/2010 07:47 PM, NoSpaze wrote:

      

Am Dienstag, den 09.03.2010, 23:09 +0800 schrieb Edward. S. P. Leong:

        

NoSpaze wrote:

          

# modprobe ip_tables
FATAL: Module ip_tables not found.

            

Again: this module does not exist! Maybe ip_nat or nf_nat?

        

To clarify, several kernels ago the IPV4 iptables was defaulted to being
built into the kernel so it doesn't need a modprobe or insmod.  Ditto
with the IPV4 conntrack (snippet of the default kernel config file):

CONFIG_NF_DEFRAG_IPV4=y<<<---- Built into kernel
CONFIG_NF_CONNTRACK_IPV4=y<<<---- Built into kernel
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_QUEUE=m<<<---- Module
CONFIG_IP_NF_IPTABLES=y<<<---- Built into kernel

So remove those items from your /etc/modprobe.conf file.  It is also not
necessary to modprobe things like the NAT module and such...if
there are rules in your iptables config that require them, they'll
be drug in by iptables itself.  The "modprobe"able modules can be
found by doing a

	ls /lib/modules/`uname -r`/kernel/net/ipv4/netfilter

      

Hello to you,

Would you mind to tell me how to apply the following iptables module
into FC11 System ?

ip_nat_ftp
ip_conntrack_ftp
    

You should just write the rules you need.  The kernel should be set up
to autoload the modules it needs to support your rules.  If you're in
doubt, use the "-m modulename" option in the rule, e.g.

	... -m nf_nat_ftp -s 10.1.0.0/24 ....