No.
For example. If you want to grant access from net (whole internet) to dmz´s
webserver with internal ip 192.168.0.1 then you should do
net dmz:192.168.0.1 tcp 80
But if you had a running config before it is quite hard to believe that the
config changed itself in a way that it does not work anymore.
However, above mentioned config will grant access from world to dmz host
192.168.0.1 but only limited to tcp port 80 which is commonly known as www
(http).
If you want to grant access not from world but from known group you can say
net:1.2.3.4 which makes it possible to grant access only to 1.2.3.4 (coming
from world) instead of all from world.
Statements with “all” such as ‘all accept accept’ are always bad. The only
thing one should have with all is a deny/drop. However, all accept accept does
not sound like a familiar syntax in each known Shorewall config file since it
is always zone zone action (for example in policy)
Try my above mentioned line. And again, messages output while you try to access
to or from dmz would be great (if sth. Is logged)
Give another mail for further questions.
_____
Von: Wilson Kwok [mailto:leiw...@yahoo.com.hk]
Gesendet: Dienstag, 2. Februar 2010 17:07
An: Shorewall Users
Betreff: Re: [Shorewall-users] Suddenly DMZ can't access to internet
You mean DMZ should
all accept accept ?
--- 2010年2月2日 星期二，Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
寫道﹕
寄件人: Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
主題: Re: [Shorewall-users] Suddenly DMZ can't access to internet
收件人: "'Shorewall Users'" <shorewall-users@lists.sourceforge.net>
日期: 2010年2月2日,星期二,下午11:57
To know that it worked before is a quite important comment.
However, I think if you want to NAT from untrusted to dmz you should
investigate rules.
Policies should not have anything to do with it since this would globally open
dmz for untrusted without a chance to influence proto and port.
_____
Von: Wilson Kwok [mailto:leiw...@yahoo.com.hk]
Gesendet: Dienstag, 2. Februar 2010 16:50
An: Shorewall Users
Betreff: Re: [Shorewall-users] Suddenly DMZ can't access to internet
I never set routing between them, but it previous work find.
I mean they can access one server by one public address.
I think I have to check policy and rules.
--- 2010年2月2日 星期二，Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
寫道﹕
寄件人: Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
主題: Re: [Shorewall-users] Suddenly DMZ can't access to internet
收件人: "'Shorewall Users'" <shorewall-users@lists.sourceforge.net>
日期: 2010年2月2日,星期二,下午7:25
If loc can access wan this is because you have a default route (0.0.0.0/0) from
loc clients to loc interface and from firewall to wan-router (normally provided
by your isp)
If loc can access dmz this is either because dmz clients have a static route
back to loc or a default route to firewalls dmz interface (since loc has a
default route there is no need to describe the way to the dmz but a need to
explain your dmz to return, this can be done by static or default route)
If dmz has default route to firewalls dmz interface than routing is fine. In
this case I guess rules or policy is wrong.
In internal can access public ip (what do you mean? Public wan oder publc dmz?)
this say nothing about why dmz is not working.
_____
Von: Wilson Kwok [mailto:leiw...@yahoo.com.hk]
Gesendet: Dienstag, 2. Februar 2010 12:19
An: Shorewall Users
Betreff: Re: [Shorewall-users] Suddenly DMZ can't access to internet
That's odd, internal can access one of public IP ....
--- 2010年2月2日 星期二，Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
寫道﹕
寄件人: Michael Weickel - iQom Business Services GmbH <m...@iqom.de>
主題: Re: [Shorewall-users] Suddenly DMZ can't access to internet
收件人: "'Shorewall Users'" <shorewall-users@lists.sourceforge.net>
日期: 2010年2月2日,星期二,下午5:50
Either you maybe do only have a static route between dmz clients and loc but no
default route or maybe something is wrong with your rules or policies.
Does your policy file logs all all drop and net all drop? If yes, what do you
see in your messages?
Cheers
Mike
_____
Von: Wilson Kwok [mailto:leiw...@yahoo.com.hk]
Gesendet: Dienstag, 2. Februar 2010 10:45
An: shorewall-users@lists.sourceforge.net
Betreff: [Shorewall-users] Suddenly DMZ can't access to internet
Hello
We are using old version ( shorewall-3.0.7-1) with Centos 5.3
The shorewall has three zones (net / loc / dmz).
Loc can access to internet with no problem and can access to DMZ.
DMZ can't access to internet.
Net can't access to DMZ with NAT.
I tried to restart the machine / check Lan card / check cable , they were work
find.
Is it DMZ Lan card problem? but it can start at Centos ...
Thanks !!
_____
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