On the new Postfix server, are you using DHCP client on the WAN interface
to get a IP address? You should not be. You should assign your public address
to the WAN interface.
I have static addresses with my ISP. My ISP's modem will hand out private
addresses
if I use DHCP client. I don't configure my server to use DHCP; I have it set
up to
use the public address.
Bill
On 1/30/2018 4:03 AM, Matus UHLAR - fantomas wrote:
On 30.01.18 00:09, jin&hitman&Barracuda wrote:
In-Reply-To:
<caldev8cxn8fc5ej4zntielpokc-8fvozze6wt00b5qzpeqf...@mail.gmail.com>
References: <caldev8f6dsgwbzsav21rtekxd69lgrnwvrd1tgkapyhufsx...@mail.gmail.com>
<CALdev8fMW22bRAnyDYsRbcqjAcNUitUUqB=wcef0-o7jgaq...@mail.gmail.com>
hell, how did you create this e-mail? it looks like reply to thread with
another 9 e-mails. (Plese send new post when asking new question)
We are tring to move our mx server to another isp. They gave us an IP
address but there is some strange points. When i try to connect any mail
related port on that ip, it send my connection to our new postfix server.
this is expected, isn't it?
There is a destination nat on it. It is strange becouse i can't see my
actual source ip. I tried with many different hosts and It looks like there
is a source nat and i saw same ip as my source ip wherever i try.
this is also expected, when you have server on network with private IPs.
From new postfix server, when i try to reach any server on internet, i see
another ip address on the source ip field and it is fixed too.
I believe there is a mistake. Could it be feasible two different ip for
incoming and outgoing on one mx server ?
it's apparently a mistake, but might not be a problem. the incoming IP and
outgoing IP don't need be the same, although it's
easier when they are.
On 30 Jan 2018 12:56 a.m., "Kevin A. McGrail" <kmcgr...@pccc.com> wrote:
With NAT it could definitely be possible. What's your machines local ip
address with ifconfig? Is it a reserved private address?
On 30.01.18 01:03, jin&hitman&Barracuda wrote:
It is 192.168.34.30/24
this is a private address, not visible in the internet.
On 30 Jan 2018 3:43 a.m., "Paul" <p...@netpresto.co.uk> wrote:
What is the source IP you see making connections to your new postfix server
?
On 30.01.18 09:28, jin&hitman&Barracuda wrote:
It is 172.27.203.20
this is also a private address and it should not appear in the public
internet. Should not be a problem between servers.
If you see this IP when you connect to your postfix from the internet,
complain to your new ISP immediately. Connections from outside should not be
NATted.
let's clear things up:
- which IP do you have when mailing to the outside?
- which IP you have to connect from outside in order to get to your mail server?
