I am using vsftp but I can't login with passive mode. I can only login with active mode. I can login with both mode when service of iptables is stop.
In active mode : 20,21 must be open from server site. 1023 and over must be open at client site.
In passive mode : only 21,1023 and over must be open at server site.
Which rule that I must add into the iptable list for passive ftp mode.
Code:
# cat /etc/sysconfig/iptables
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 21 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT
#
Hello!
Im having a strange problem. Im getting "Possible PASV port theft, cannot open data connection" when i try to ftp from one machine to another.
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hi i am doing a passive ftp file transfer . during that i got the following error.
"ftp> put FTPS_MAILBOX
local: FTPS_MAILBOX remote: FTPS_MAILBOX
421 Service not available, remote server has closed connection
Passive mode refused. Turning off passive mode.
No control connection for... (1 Reply)
Hello Gurus,
Naif is implemented for only for port 21 for few windows servers.
I have made my linux 5.1 as my FTP server.
After installing vsftpd i could ftp from other linux server.
linux to linux (ftp server)
But same when i ftp from other windows server which only port 21 is enabled.... (0 Replies)
Hello Gurus,
Naif is implemented for only for port 21 for few windows servers.
I have made my linux 5.1 as my FTP server.
After installing vsftpd i could ftp from other linux server.
linux to linux (ftp server)
But same when i ftp from other windows server which only port 21 is enabled.... (2 Replies)
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Question : Since all the traffic is passing thru the same... (3 Replies)
how to connect to ftp server in passive mode?
ftp server.abc
and how can i see ftp settings, doesn't exist some ftpd.conf
there is some other file where i check the options and configurations of ftp server?
Thanks (3 Replies)
Hi,
We have one java client which connects to a windows server through ftp in active mode and gets files. When we run this client on hp-ux, it is able to transfer 100k files. But when we run the same client on Linux server it is able to transfer only 200 files at max and it is hanging there... (1 Reply)
Discussion started by: urspradeep330
1 Replies
LEARN ABOUT PHP
tc-fw
Firewall mark classifier in tc(8) Linux Firewall mark classifier in tc(8)NAME
fw - fwmark traffic control filter
SYNOPSIS
tc filter ... fw [ classid CLASSID ] [ action ACTION_SPEC ]
DESCRIPTION
the fw filter allows to classify packets based on a previously set fwmark by iptables. If it is identical to the filter's handle, the fil-
ter matches. iptables allows to mark single packets with the MARK target, or whole connections using CONNMARK. The benefit of using this
filter instead of doing the heavy-lifting with tc itself is that on one hand it might be convenient to keep packet filtering and classifi-
cation in one place, possibly having to match a packet just once, and on the other users familiar with iptables but not tc will have a less
hard time adding QoS to their setups.
OPTIONS
classid CLASSID
Push matching packets to the class identified by CLASSID.
action ACTION_SPEC
Apply an action from the generic actions framework on matching packets.
EXAMPLES
Take e.g. the following tc filter statement:
tc filter add ... handle 6 fw classid 1:1
will match if the packet's fwmark value is 6. This is a sample iptables statement marking packets coming in on eth0:
iptables -t mangle -A PREROUTING -i eth0 -j MARK --set-mark 6
SEE ALSO tc(8), iptables(8), iptables-extensions(8)iproute2 21 Oct 2015 Firewall mark classifier in tc(8)
12-04-2011
