Displaying 20 results from an estimated 6000 matches similar to: "iptables nat PREROUTING chain"
2004 Sep 27
9
masq - pings and connections get dropped after PREROUTING?
Hello,
I have a pretty standard two-interface setup with masquerading, so the local
network can connect through the firewall to the Internet.
On the firewall box (trevor), eth0 is connected to a cable modem and eth1 is
connected to the local network via a crossed cable. There is one other
machine on the local network (brian), whose eth0 is at the other end of the
crossed cable.
I used to have
2016 Dec 24
6
[Bug 1105] New: masquerade fully broken when no prerouting chain is created
https://bugzilla.netfilter.org/show_bug.cgi?id=1105
Bug ID: 1105
Summary: masquerade fully broken when no prerouting chain is
created
Product: nftables
Version: unspecified
Hardware: x86_64
OS: other
Status: NEW
Severity: major
Priority: P5
Component: kernel
2005 May 20
1
Iptables - PREROUTING
I have a server whit 2 interfaces of network, where eth0 is the interfaces
connetc to internet and eth1 to the internal network. This server hace a
Squid only, but i setting the iptables for protection to the server.
Iptables run from script and in this script i setting the redirection for
the other server in my internal network to port 80 and 443. I follow the
diferent how to and many manual, but
2003 Jul 22
1
Making a group membership matrix
Hi Helpers:
I have a factor object that has 314k entries of 39 land cover types.
(This object can be coerced to characters neatly should that be easier
to work with.)
> length(foo)
[1] 314482
> foo[1:10]
[1] Montane Chaparral Barren Red Fir Red Fir
[5] Red Fir Red Fir Red Fir Red Fir
[9] Red Fir Red Fir
39 Levels:
2007 Sep 25
7
DNAT PREROUTING issue with IPTABLES
Hi,
I have an DNAT ISSUE with PREROUTING.
This is my setup.
I have 2 firewalls running iptables.
Pls asume 1.2.3.4/29 is the internet interace of FIRST firewall.
2.3.4.5/29 is the internet interface of SECOND firewall. it has DMZ zone. in
that DMZ zone, mail server runnig @ 192.168.100.3
Now I want to DNAT port 25 of FISRT firewall ( i.e - its ip address -
1.2.3.4/29) to the internet ip
2016 Jun 21
4
Redirecting port 8080 to port 80 - how to add in /etc/sysconfig/iptables file?
Hello Gordon and others
On Tue, Jun 21, 2016 at 4:13 PM, Gordon Messmer <gordon.messmer at gmail.com>
wrote:
> On 06/21/2016 02:30 AM, Alexander Farber wrote:
>
>> -A PREROUTING -p tcp -m tcp -d 144.76.184.154/32 --dport 80 -j REDIRECT
>> --to-ports 8080
>>
>
>
> I think you have the ports backward, here.
>
here the problem description again:
I have
2003 Dec 02
2
rsync 2.5.6 with ssh to a remote server
Hi,
I would like to use the new interface style:
rsync --rsh="ssh -l username -i key" <src>
username@host::module,
however I get "reset by peer" errors. Can someone give some
suggestions, please? Do I need to provide a symlink to the
/etc/rysncd.conf file from within the user's dir?
Note, I have the groups set to same as user and the
group exists. Where does
2010 Jan 09
4
selinux violation does not get logged
After upgrading to centos 5.4 I am getting a selinux violation, yet
nothing is logged to /var/log/audit/audit.log. Other violations do get
logged.
The violation occurs when running the following command on the mail
server:
aspen> /usr/bin/Mail centos at centos.org
Subject: test
hi
Cc:
aspen> send-mail: warning: premature end-of-input on /usr/sbin/postdrop
-r while reading input
2003 Apr 14
0
[Bug 77] a bug in the chain PREROUTING of the table nat
https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=77
laforge@netfilter.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |trivial
Status|NEW |RESOLVED
Resolution|
2013 Nov 05
8
Forwarding external traffic to another external server?
I''m trying to use my VPS server (single interface of course) as
somewhat of a VPN gateway to my other location (which is not
accessible directly from some places) where the openvpn server is
running, and am kind of lost as to what to try next.
I tried a redirect rule, but apparently shorewall didn''t like that (it
just failed to start).
I tried adding the rules via
2004 Aug 24
7
Question about ip_forward in clear_firewall
Firewall users,
My apologies as I''m not on this list, so please respond directly as
well as to the list. I did try to search the archives and didn''t find
any hits, although the search did not like searching for terms with
underscores in them (both clear_firewall and ip_forward).
I was trying to understand why, when running shorewall stop, even though
it echoes
IP
2007 Mar 07
4
PREROUTING - DNAT with iptables for an ASTERISK BOX
Hi,
I am running a ASTERISK BOX behind a firewall. It is at DMZ .
Now I want to connect to my ASTERISK BOX from Internet. So I want to DNAT.
How can I do it?
Pls assume that ip address that connects to Internet on firewall is
1.2.3.4and is attached to eth0.
And ASTERISK BOX is 192.168.101.23
Then, What is the rule (PREROUTING) for it? What is the port to DNAT?
I think udp 5060. So I have
2007 Sep 25
1
DNAT PREROUTING issue with iptables
Hi,
I have an DNAT ISSUE with PREROUTING.
This is my setup.
I have 2 firewalls running iptables.
Pls asume 1.2.3.4/29 is the internet interace of FIRST firewall.
2.3.4.5/29 is the internet interface of SECOND firewall. it has DMZ zone. in
that DMZ zone, mail server runnig @ 192.168.100.3
Now I want to DNAT port 25 of FISRT firewall (i.e - its ip address -
1.2.3.4/29) to the internet ip
2005 Jul 14
7
Losing Packets after a DNAT in prerouting
I''m trying to setup some DNAT and the packets seem to be disappearing after
the PREROUTING step. The packets are coming in eth2 (both LOG targets in
iptables and tcpdump confirm this). They are then DNATed to an IP that
should cause them to go out eth3. However I never see them go out that
interface. I have tried putting LOG rules into the FORWARD chain with no
success. I''m
2007 May 26
14
[Bug 570] PREROUTING is unaware of VLAN interfaces
https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=570
kaber@trash.net changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
------- Additional Comments From kaber@trash.net 2007-05-26
2004 Jun 03
5
iptables mangle table PREROUTING rule with -o flag
Greetings all,
I realize from the subject line this makes little sense but here''s the
scenario:
I''m trying to shape (via priority - not bandwidth) peer to peer traffic
from a number of clients. Currently I use an IMQ device to bring all
their outbound (inbound to me - outbound to Inet) traffic together to work
with policies all at the same time. I''m testing the
2006 Feb 17
2
Packet vanishes after mangle-prerouting.
Can anyone tell me whether I have a routing problem, or
an openVPN problem, or something else? I''ve stared at this
for so long I think I must be looking in the wrong place!
I have 3 machines:
Machine A has single ethernet card, eth0, 192.168.5.5
Machine B has eth0, 192.168.5.? on the local net,
eth1, 81.2.x.y to the internet, and
2004 Jun 21
1
IMQ + natin PREROUTING - it is almost 2 years since patch....
Hello there!
I was reading this archive:
http://mailman.ds9a.nl/pipermail/lartc/2002q3/004725.html
It was almost two years ago when Patrick wrote a patch to switch IMQ
with nat in PREROUTING chain...
From www.linuximq.org I''ve downloaded newset IMQ driver for 2.4.26 and
what can i see? The line that Patrick changed in that patch is still as
it was in previous relases.
Are there
2016 Jun 21
2
Redirecting port 8080 to port 80 - how to add in /etc/sysconfig/iptables file?
Hello again,
unfortunately the following /etc/sysconfig/iptables file does not work:
*nat
:INPUT ACCEPT
:OUTPUT ACCEPT
:PREROUTING ACCEPT
:POSTROUTING ACCEPT
#-A PREROUTING -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 8080
-A PREROUTING -p tcp -m tcp -d 144.76.184.154/32 --dport 80 -j REDIRECT
--to-ports 8080
COMMIT
*filter
:INPUT DROP
:OUTPUT ACCEPT
:FORWARD DROP
-A INPUT -m state --state
2017 Feb 03
4
[Bug 1117] New: Table ipv4-nat prerouting dnat doesn't accept dest IP:PORT
https://bugzilla.netfilter.org/show_bug.cgi?id=1117
Bug ID: 1117
Summary: Table ipv4-nat prerouting dnat doesn't accept dest
IP:PORT
Product: nftables
Version: unspecified
Hardware: x86_64
OS: All
Status: NEW
Severity: enhancement
Priority: P5
Component: nft