Am Mi, den 09.03.2005 schrieb rado um 11:01: > Hi Alexander, > ...sorry if I confused you; let me see if I can clarify. > > rivers-bend.com is my domain w/a public ip of 209.205.179.141 > > This box right here is rbmain1 [10.0.0.10] running on fc2 which is fully > updated. It's running dns, sendmail 8.12.11-4.6, dovecot, and other > things w/no problems. > > the box w/problems is rbmain2 [10.0.0.12] running on fc3 w/no updating > yet. > My intentions are to mirror 10.0.0.10 w/10.0.0.12. After it's all set > up, I'll probably use rsync or something to sync up the 2 machines and > if/when 10.0.0.10 ever goes down, just run a script on 10.0.0.12 and it > will take over. > > Now, while setting 10.0.0.12 up, presently I shut down 10.0.0.10 because > I don't have scripts in place yet. While 10.0.0.10 is down, dns in > 10.0.0.12 takes over and works fine. > > Now the problem: using evolution, I can mail to myself i.e. from: > rado@xxxxxxxxxxxxxxx to:rivers-bend.com and it will pop fine. > I can send mail out to my hotmail acct: radopowder@xxxxxxxxxxx, and it > is received...I reply from hotmail to rado@xxxxxxxxxxxxxxx, and it never > comes. Mind you this is in the fc3 sys, [10.0.0.12]. > ok, let's shut down 10.0.0.12 now. > > bring up 10.0.0.10... that's this box. the email reply that I was trying > to receive in 10.0.0.12 shows up here in 10.0.0.10. > > Somehow mail is being stopped from being received on 10.0.0.12. Ok, now I understand. > here's a list of my open ports: > > [root@rbmain2 ~]# nmap -sT rbmain2 > > Starting nmap 3.70 ( http://www.insecure.org/nmap/ ) at 2005-03-09 08:05 > CST > Interesting ports on rbmain2.rivers-bend.com (10.0.0.12): > (The 1654 ports scanned but not shown below are in state: closed) > PORT STATE SERVICE > 22/tcp open ssh > 25/tcp open smtp > 53/tcp open domain > 110/tcp open pop3 > 111/tcp open rpcbind > 113/tcp open auth > > Nmap run completed -- 1 IP address (1 host up) scanned in 0.283 seconds Seems to be an nmap run on the host itself. To get really counting output you should port scan from a different host. Else iptables could block port 25 though. > Don't forget, Alexander, 10.0.0.12 is only up while I'm working on it. > when I need to check email like this msg list, I have to shut down > 10.0.0.12 and bring up this machine, 10.0.0.10. I also monitor my > hotmail acct. regularly radopowder@xxxxxxxxxxx which could be used for > testing communication. That's always up. > John Rose I guess your gateway forwarding port 25 to the internal host - 10.0.0.10 or 10.0.0.12 - is not changed when the first one is off and thus the traffic routed to the false host IP. Else check the maillog as the traffic _must_ reach the 10.0.0.12 host. Alexander -- Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773 legal statement: http://www.uni-x.org/legal.html Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.10-1.770_FC2smp Serendipity 17:18:57 up 21:03, 16 users, 0.27, 0.19, 0.11
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