Re: FreeBSD mailing list reverse DNS problem

From: Paul Schmehl (pauls_at_utdallas.edu)
Date: 04/29/05

  • Next message: Jon Drews: "Getting CUPS to use hpijs" 
    Date: Fri, 29 Apr 2005 12:02:40 -0500
To: Ihsan <ihsan_junaidi@yahoo.com.sg>, freebsd-questions@FreeBSD.org

    --On Friday, April 29, 2005 03:14:36 AM -0700 Ihsan
    <ihsan_junaidi@yahoo.com.sg> wrote:
    >
    > I've checked and rechecked with internal and external
    > name servers which allow foreign queries that my IP is
    > resolvable to anggerik.meltechsystems.net (dig -x
    > 202.71.100.92) but somehow FreeBSD servers couldn't
    > get the reverse information.
    >
    I checked, and your DNS ids your box as the MX for your domain as well.

    The first thing I would do is telnet *from* your mailserver to the FreeBSD
    mailserver and try a manual SMTP session and see what happens. If you get
    rejected then, you *know* it's a problem with the FreeBSD server.

    You probably know this already, but just in case:

    % telnet server.freebsd.org 25
    HELO meltechsystems.net
    MAIL FROM: you@yourdomain
    RCPT TO: list@freebsd.org

    If all this works, then something else is causing the problem.

    Paul Schmehl (pauls@utdallas.edu)
    Adjunct Information Security Officer
    The University of Texas at Dallas
    AVIEN Founding Member
    http://www.utdallas.edu
    _______________________________________________
    freebsd-questions@freebsd.org mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-questions
    To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"

  • Next message: Jon Drews: "Getting CUPS to use hpijs"

    Relevant Pages

    • Servers Crash every few days
      ... I have six servers running FreeBSD 6.2 and all of them have the same config. ... Memory for the servers are ... 1000 connection and sometimes when the connections is more 10000. ...
      (freebsd-questions)
    • Re: Windows client - internet connection sharing
      ... >> ADSL line to provide internet access via LAN to a ... > This is all about how you interface your FreeBSD ... > servers and so forth. ... This enables you to set up a 'DMZ' network, ...
      (freebsd-questions)
    • Re: trouble with a script
      ... Your snippet of code doesn't look like sh on FreeBSD. ... Basically, I want my script to prompt me for two inputs, then append to ... The user input would be "domain.com", ... is how we set up a client's site on our servers. ...
      (comp.unix.shell)
    • Re: FreeBSD Security Advisory FreeBSD-SA-02:21.tcpip
      ... > most freebsd admins with larger installations do. ... Doing this for 1000 individual servers, even when scripted, is ... money on good hardware and support contracts because they have gaurantees and ... Yes, FreeBSD does run on darn cheap hardware, and it runs well. ...
      (FreeBSD-Security)
    • Re: trouble with a script
      ... Your snippet of code doesn't look like sh on FreeBSD. ... Basically, I want my script to prompt me for two inputs, then append to ... The user input would be "domain.com", ... is how we set up a client's site on our servers. ...
      (comp.unix.shell)