please, load nf_conntrack_ftp module (modprobe nf_conntrack_ftp)
your original iptables rules looks good
ip_conntrack is compiled into kernel already
jkk
--
W dniu 2010-03-27 13:04, Edward. S. P. Leong napisa?/?a:
Hello,
[r...@host1 ~]# lsmod|grep ftp
[r...@host1 ~]#
Output is nothing
And:
[r...@host1 ~]# iptables -A INPUT -i eth1 -m nf_conntrack_ftp -p tcp
--dport 21 -d 192.168.1.254 -j ACCEPT
iptables v1.4.3.1: Couldn't load match
`nf_conntrack_ftp':/lib/xtables/libipt_nf_conntrack_ftp.so: cannot
open shared object file: No such file or directory
Try `iptables -h' or 'iptables --help' for more information.
[r...@host1 ~]#
No of the modules can't be loaded...
Any other help ?
Thanks !
j...@csk.umed.lodz.pl wrote:
What is output from command:
lsmod|grep ftp
module nf_conntrack_ftp is a must for passive mode
Dnia 27 Marca 2010, 09:42, So, Edward. S. P. Leong napisa?(a):
ftp client ( passive mode ) :
227 Entering Passive Mode (192,168,1,254,226,220).
connecting to 192.168.1.254:58076
- -
connecting to 192.168.1.254:58076
! Connection failed 192.168.1.254 - connection timed out
! connect: error 0
PORT 192,168,1,101,17,247
200 PORT command successful
LIST
150 Opening ASCII mode data connection for file list
Received 61 bytes in 0.1 secs, (6100.00 bps), transfer succeeded
226 Transfer complete
-------- Original Message --------
Subject: Firewall ( iptables ) enabled for ftp ( active mode& passive
mode ) problem
Date: Sat, 27 Mar 2010 16:39:01 +0800
From: Edward. S. P. Leong<edward...@ita.org.mo>
To: fedora-l...@redhat.com <fedora-l...@redhat.com>,
proftp-u...@lists.sourceforge.net
Dear All,
Mine is FC11 OS...
So, how can we enable the firewall ( iptables ) for using ftp ( active
mode& passive mode ) service ?
For the existing setting :
iptables -F
iptables -X
iptables -F -t nat
iptables -X -t nat
iptables -F -t mangle
iptables -X -t mangle
iptables -P INPUT DROP
iptables -P OUTPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -t nat -P OUTPUT ACCEPT
iptables -t nat -P PREROUTING ACCEPT
iptables -t nat -P POSTROUTING ACCEPT
iptables -t mangle -P PREROUTING ACCEPT
iptables -t mangle -P POSTROUTING ACCEPT
iptables -t mangle -P INPUT ACCEPT
iptables -t mangle -P OUTPUT ACCEPT
iptables -t mangle -P FORWARD ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
int="eth1"
int_add="192.168.1.254"
int_src="192.168.1.0/24"
# Only allow users to use port 22 ( ssh services ) :
iptables -A INPUT -i $int -p tcp --dport 22 -s $int_src -d $int_add -j
ACCEPT
# Only allow users to use port 20& 21 ( ftp services ) :
iptables -A INPUT -i $int -p tcp --dport 20 -s $int_src -d $int_add -j
ACCEPT
iptables -A INPUT -i $int -p tcp --dport 21 -s $int_src -d $int_add -j
ACCEPT
# ping ( ICMP )
iptables -A INPUT -i $int -p icmp --icmp-type echo-request -s $int_src
-d $int_add -j ACCEPT
Problem of ftp client :
connection timenout
Thanks !
Edward.
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* jan k.kaminski, nucl.med.dept, med.univ. of lodz *
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