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From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf
Of cliff here
Sent: Monday, July 05, 2010 10:56 PM
To: CentOS mailing list
Subject: Re: [CentOS] DNS or firewall problem
yea that needs to be a 1
Thanks,
I'll give that a try
cliff here wrote:
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
yea that needs to be a 1
That cannot be mandatory,
as I have a 0 there and do not have the OP's problem.
As I mentioned, the default in shorewall is that
loc to $FW, ie connection from machines on the local LAN to server,
Are you running a proxy for http? It would be rather
surprising that internal machines can access the Internet
without forwarding turned on otherwise. When you say internal
machines cannot access your server, are they connecting to it
via the local interface's ip or the Internet ip?
Well if you want the kernel to route IPV4 traffic, then yes it has to be 1
On 7/6/10, Timothy Murphy gayle...@eircom.net wrote:
cliff here wrote:
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
yea that needs to be a 1
That cannot be mandatory,
as I have a 0 there and do not have the
echo 1 /proc/sys/net/ipv4/ip_forward
On 6 July 2010 21:17, Basil Kurian basilkur...@gmail.com wrote:
enable ipv4_forwarding in /etc/sysctl.conf
# service iptables start
# iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
eth0 is the interface connected to modem.
On 6 July 2010
enable ipv4_forwarding in /etc/sysctl.conf
# service iptables start
# iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
eth0 is the interface connected to modem.
On 6 July 2010 04:30, Thomas Dukes tdu...@sc.rr.com wrote:
Been working this for over a month now and I'm stumped.
cliff here wrote:
Well if you want the kernel to route IPV4 traffic, then yes it has to be 1
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
yea that needs to be a 1
That cannot be mandatory,
as I have a 0 there and do not have the OP's problem.
You've changed the question.
The OP
On Tue, Jul 06, 2010 at 09:19:41PM +0100, Timothy Murphy wrote:
cliff here wrote:
Well if you want the kernel to route IPV4 traffic, then yes it has to be 1
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
yea that needs to be a 1
That cannot be mandatory,
as I have a 0
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Chan Chung
Hang Christopher
Sent: Tuesday, July 06, 2010 9:28 AM
To: centos@centos.org
Subject: Re: [CentOS] DNS or firewall problem
Are you running a proxy for http
Dominik Zyla wrote:
Are you saying you must have the setting you mention in /etc/sysctl.conf
? That cannot be true, as I can access my server and I don't have your
entry.
Check your iptables rules. Maybe there are no INPUT rules to access your
gateway via internal nic.
I don't see the
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
ugh...fwbuilder crap...oh well.
*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
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Christopher Chan
Sent: Tuesday, July 06, 2010 9:13 PM
To: centos@centos.org
Subject: Re: [CentOS] DNS or firewall problem
# Firewall configuration written by system-config
Hmm...you do not appear to have a blanket accept for your
internal interface. What services are supposed to be open to
the internal lan?
Really just intersted in web, ftp and maybe samba
Well, the rules do accept connections for them three so no problem here.
Not really relying on my
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Christopher Chan
Sent: Tuesday, July 06, 2010 10:31 PM
To: centos@centos.org
Subject: Re: [CentOS] DNS or firewall problem
Hmm...you do not appear to have a blanket accept
I have most services turned off but can activate them ,
remotely, from
webmin if I need ssh or ftp.
Well, I guess you first need to allow connections to webmin
(from INSIDE
- even if you are absolutely certain no one can guess your
password) unless you are only going to do it from the
Been working this for over a month now and I'm stumped.
Everything was working until the 'crash'. Backup was no good so I did a
fresh install of centos 5.5. Trying to get things back like they were but
its been a really long time since I had to set things up from scratch,
Redhat 2.0.
My centos
Do u have ipv4 forwarding on in your /etc/syscttl
Sent from my iPhone
On Jul 5, 2010, at 7:00 PM, Thomas Dukes tdu...@sc.rr.com wrote:
Been working this for over a month now and I'm stumped.
Everything was working until the 'crash'. Backup was no good so I
did a
fresh install of centos
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Cliff
Sent: Monday, July 05, 2010 8:05 PM
To: CentOS mailing list
Subject: Re: [CentOS] DNS or firewall problem
Do u have ipv4 forwarding on in your /etc/syscttl
Sent from my
On Tuesday, July 06, 2010 08:12 AM, Thomas Dukes wrote:
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Cliff
Sent: Monday, July 05, 2010 8:05 PM
To: CentOS mailing list
Subject: Re: [CentOS] DNS or firewall problem
Do u have
Thomas Dukes wrote:
Do u have ipv4 forwarding on in your /etc/syscttl
Uhhh, in /etc/sysctl.conf,
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
I have more or less the same setup as you,
and I have
net.ipv4.conf.ip_forward = 0
in /etc/sysctl like you,
but I have no problem
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Christopher Chan
Sent: Monday, July 05, 2010 8:42 PM
To: centos@centos.org
Subject: Re: [CentOS] DNS or firewall problem
On Tuesday, July 06, 2010 08:12 AM, Thomas Dukes wrote
-Original Message-
From: centos-boun...@centos.org
[mailto:centos-boun...@centos.org] On Behalf Of Timothy Murphy
Sent: Monday, July 05, 2010 10:11 PM
To: centos@centos.org
Subject: Re: [CentOS] DNS or firewall problem
Thomas Dukes wrote:
Do u have ipv4 forwarding
: [CentOS] DNS or firewall problem
Do u have ipv4 forwarding on in your /etc/syscttl
Sent from my iPhone
Uhhh, in /etc/sysctl.conf,
net.ipv4.conf.ip_forward = 0 ??
change to = 1 ??
--Eddie
On Jul 5, 2010, at 7:00 PM, Thomas Dukes tdu...@sc.rr.com wrote:
Been working
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