Re: nameserver changing

From: Vizion (vizion_at_vizion.occoxmail.com)
Date: 06/01/05

  • Next message: Danny Howard: "Re: syslogd and pipe to email" 
    To: Giorgos Keramidas <keramida@ceid.upatras.gr>
Date: Tue, 31 May 2005 15:02:41 -0700

    On Tuesday 31 May 2005 14:57, the author Giorgos Keramidas contributed to the
    dialogue on-
     Re: nameserver changing:

    >On 2005-05-31 14:33, Vizion <vizion@vizion.occoxmail.com> wrote:
    >> Hi
    >>
    >> I want to be able to automatically remove/add one or more dns servers from
    >> the list of dns's used as resolvers by particular machine(s) on a network
    >> which I control from data stored in a file in each computer.
    >> e.g file might contain lines such as:
    >> xxx.xxx.xxx.xxx remove dns xxx.xxx.xxx
    >> xxx.xxx.xxx.xxx add dns xxx.xxx.xxx
    >> None of the machines are running their own dns servers.
    >> The changes will be initiated by cron.
    >>
    >> Don't ask me why I need to do it -- the answer is far too complicated :-)
    >>
    >> Suggestions please
    >
    >You could use the "template" file as a source and generate a shell
    >script that will be scp'ed and executed on each host. If you have enoug
    >time, you could write a Perl script that will read this format:
    >
    > 10.0.0.0/8 remove *
    > 10.0.0.0/8 add 10.0.0.2
    >
    >and then create one Perl script for every host. The script could be
    >scp'ed (if you have SSH keys set up correctly) and run remotely, with
    >something like:
    >
    > # cat scripts/10.0.0.1.sh | ssh -l root 10.0.0.1

    thanks - that sounds reasonable -- is freebsd configured to refer to
    etc/hosts to look up the dns server ips on every occasion or do I have to
    reload?
    David 

    -- 
40 yrs navigating and computing in blue waters.
English Owner & Captain of British Registered 60' bluewater Ketch S/V Taurus.
 Currently in San Diego, CA. Sailing May/June bound for Europe via Panama 
Canal.
_______________________________________________
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: Danny Howard: "Re: syslogd and pipe to email"

    Relevant Pages

    • How to setup PerLDAP
      ... Copy a test Perl script getentry.pl on page 380: ... die "Could not connect to LDAP $host" unless $conn ... It obvious that I missed something while setting up PerLDAP. ... Directory Server: ...
      (SunManagers)
    • Re: nameserver changing
      ... > list of dns's used as resolvers by particular machineon a network which I ... > None of the machines are running their own dns servers. ... script that will be scp'ed and executed on each host. ... and then create one Perl script for every host. ...
      (freebsd-questions)
    • Re: Bash: How do I quote CR &| LF in a command?
      ... >> I want to do in bash what the above perl script does. ... Thanks for your reply too Stephane - I need the Host: header because ... I'm working with LVS real servers inside the realserver network, ...
      (comp.unix.shell)
    • scripting gethostbyname
      ... Here's a 3 line perl script that prints the IP address of a named host: ... use Socket; ...
      (microsoft.public.scripting.vbscript)