host file / DNS not working right on 4.3.3

From: Ron Bramblett (bramblet_at_FULLER.COM)
Date: 10/23/03

  • Next message: Holger.VanKoll_at_SWISSCOM.COM: "Re: host file / DNS not working right on 4.3.3" 
    Date:         Thu, 23 Oct 2003 09:57:51 -0500
To: aix-l@Princeton.EDU

    Hello,

    I have a RISC 6000 server running 4.3.3
    About a week ago I started seeing a problem with my email (still not
    complete but at least it works)

    I am running a Linux box that is acting as an email server so I can get
    internal messages from the systems I manage. On the other 2 boxes (Tru64
    & VMS) this runs fine with just the hosts files on each machine.

    I noticed that every time that I tried to run sendmail or ftp to another
    site that it would not work. This started about the 13th of this month.
    It was working but maybe the network admin did something with her NT server.

    before the 13th the /etc/resolv.conf file was like this.

    # cat resolv.101403.conf
    domain fuller.com
    nameserver 172.x.x.18
    nameserver 216.x.x.x
    nameserver 216.x.x.x

    the 172 number was the NT server and the other 2 were our ISP.

    the netsvc.conf file was / is like this.
    # cat netsvc.conf
    #
    # DNS name resolution ordering modified 01-26-98
    #
    hosts = local,bind

    The hosts file is like this.
    ~
    ~
    ~
    172.x.x.18 NtServer2 # NT Server
    172.x.x.19 NtServer1 # Lotus Notes Server
    172.x.x.20 VMSServer2 # VMS Server
    172.x.x.21 VMSServer1 # pc file/print server
    172.x.x.22 tru64 tru64.fuller.com # Tru64 UNIX Server
    172.x.x.23 aix aix.fuller.com # AIX UNIX Server
    ~
    ~
    ~
    172.x.x.234 linux linux.fuller.com # RHL8.0 workstation (mine)

    Can anyone tell me why or what to look at to see why the local hosts
    file doesn't seem to work. (The hosts file is the same one on both of
    the Tru64 & Linux box)

    As root I could ftp to another machine using.
            ftp Name_of_Machine

    but as myself or one of the programmers I could only do this to make it
    work.
            ftp 172.x.x.x

    I setup a DNS server on Linux and now things are working. I don't think
    that a DNS server is actually necessary because I think the hosts file
    should do that. We are running (changed to it about 2 months ago) DHCP
    for the winblows machines. and static IP for the servers, routers,
    switches, printers, etc.

    Maybe a file did not get changed correctly.

    I dual boot my machine as part of my job and when it isn't running linux
    the DNS server is down or if I shut it down.

    Thanks for the assistance. 

    --
Ron Bramblett
Sys Admin
Fuller Brush Company
  • Next message: Holger.VanKoll_at_SWISSCOM.COM: "Re: host file / DNS not working right on 4.3.3"

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