Re: [Security Firewall] MNF1 + Qmail POP
Steven Lim <steven.lim-kREsJyqV7pv/[email protected]> Thu, 25 Aug 2005 08:45:23 +0800
| Newsgroups | gmane.linux.mandrake.security.firewall |
|---|---|
| Message-ID | <[email protected]> |
Thanks for the promptly reply.
The Qmail-pop3 is not on DMZ, Yes I am using NAT on my LAN. The Qmail
is sitting behind the fw therefore i have to DNAT the necessary port
to the qmail server.
Rules from /etc/shorewall/rules
Inbound For Qmail Services
ACCEPT wan fw tcp http -
DNAT wan lan:192.168.3.89 tcp http -
ACCEPT wan fw tcp https -
DNAT wan lan:192.168.3.89 tcp https -
ACCEPT wan fw tcp smtp -
DNAT wan lan:192.168.3.89 tcp smtp -
ACCEPT:info wan fw tcp pop3 -
DNAT:info wan lan:192.168.3.89 tcp pop3 -
ACCEPT wan lan tcp imap -
DNAT wan lan:192.168.3.89 tcp imap -
ACCEPT wan fw tcp 783 -
DNAT wan lan:192.168.3.89 tcp 783 -
ACCEPT wan fw tcp 993 -
DNAT wan lan:192.168.3.89 tcp 993 -
--------------
ACCEPT lan wan tcp 993 -
DNAT wan lan:192.168.3.89 tcp ssh -
--
> Where is the pop3 server? DMZ, WAN or inside FW?
> Are you using NAT in LAN?
> Please, post all your rules here (/etc/shorewall/rules)
> Steven Lim escreveu:
>>Hi can anyone shed me some light regarding the problem below... I am
>>setting up an e-mail server behind MNF fw...
>>
>>1. cannot connect to pop to receiveing mail using outlook...
>>
>>my outlook or other mail client just show the error "could not connect to server"
>>
>>and my fw log shows this after i am trying to connect to pop
>>---------------
>>Aug 22 09:09:36 firebox snort[4254]: [1:486:2] ICMP Destination Unreachable (Com
>>munication with Destination Host is Administratively Prohibited) [Classification
>>: Misc activity] [Priority: 3]: {ICMP} aaa.aaa.aaa.aaa -> bbb.bbb.bbb.bbb
>>Aug 22 09:09:37 firebox snort[4254]: [1:486:2] ICMP Destination Unreachable (Com
>>munication with Destination Host is Administratively Prohibited) [Classification
>>: Misc activity] [Priority: 3]: {ICMP} aaa.aaa.aaa.aaa -> bbb.bbb.bbb.bbb
>>---------------
>>aaa - fw ip
>>bbb - client pc ip
>>
>>
>>
>>
>>------------------------------------------------------------------------
>>
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>>
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