2018-01-30 15:22 GMT+03:00 Bill Shirley <b...@knoxvillechristian.org>:
> 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-8 >>> fvozze6wt00b5qzpeqf...@mail.gmail.com> >>> References: <caldev8f6dsgwbzsav21rtekxd69lgrnwvrd1tgkapyhufsx...@mail.gm >>> ail.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? >> >> > Hi Bill No, there is no DHCP. All I have is one interface and it's it has a fixed IP address (192.168.34.30) -- *There is no place like "/home"* *From HemiB A R R A C U D A !*