uuups: i mean
iptables -A OUTPUT -p tcp --dport smtp -s myip -m state --state
NEW,ESTABLISHED -j ACCEPT
-Ursprüngliche Nachricht-
Von: Wolfgang Pichler [mailto:[EMAIL PROTECTED]]
Gesendet: Montag, 13. August 2001 17:34
An: QMail Mailling List
Betreff: AW: off topic
OS: Linux 2.4.4-smp with iptables v 1.2.1a
with rcpt-server i mean the mean the highest prior MX server from the dns
server.
I have no mail server in DMZ
I've used the following rule:
iptables -A OUTPUT -p tcp --dport smtp -s myip -j -m state --state
NEW,ESTABLISHED ACCEPT
-Ursprüngliche Nachricht-
Von: Brett Randall [mailto:[EMAIL PROTECTED]]
Gesendet: Montag, 13. August 2001 17:18
An: Wolfgang Pichler
Cc: QMail Mailling List
Betreff: Re: off topic
On Mon, 13 Aug 2001 16:56:32 +0200, Wolfgang Pichler
[EMAIL PROTECTED] said:
Hi
Mornin.
It's a little bit off topic,
comp.security.firewalls
comp.os.linux.networking
but does anywhere know which ports to open on my firewall so that
qmail works correctly.
25 outbound if you only want to send e-mail to external sites. 25
inbound as well if you have a mail server in a DMZ.
At the moment I've opend dns,smtp and pop3 but when i activate the
firewall some messages can't be delivered (wasn't able to establish
an smtp connection),
Log entries? Kernel details? OS even? There is a big diff between
Linux and FreeBSD. Hec, there is a big diff between Linux v2.0, v2.2
and v2.4 firewalling. How are we meant to help you if we don't even
know the foundation?
but when i try to telnet to the specified rcpt-server everything
works really fine.
rcpt-server = really crazy parrot tarot-server? What do you mean,
rcpt-server? Do you mean the remote MX?
So what happend here ? (if i open the firewall for everything, then
the messages are leaving the queue)
Nice... I think it's probably safer you leave the firewall
open. Really.
--
Bubble Memory, n.: A derogatory term, usually referring to a person's
intelligence. See also vacuum tube.
- The Devil's Dictionary to Computer Studies
