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bill perkins wrote:
Richard England wrote:
I have a set of 3 Linux boxes, LaptopFC6, DesktopFC5, and DesktopFC6. On the two FC6 machines named is no longer a services ( I'm not sure who took it's place, since I'm a networking neophyte) but everything seems to be working to allow me access to the net via my DSL modem/router and to each of the machines from each other....
. . . except  (you knew there had to be an exceptions, else why would 
I bother with this)
DesktopFC5 (didius) periodically looses contact with the (net)world.  
It can't be pinged, I can ssh to it, and I can't get to an external 
site,  at least by name. When I discovered this I fell back on my 
Unix experience and restarted and named and, voila!, everything was 
back in order.
I have NetworkManager running on all three machines.

I keep all three of them as close to current in updates as I can.


Can anyone tell me why named periodically goes into limbo? or tell me how I can start to investigate this?
/var/log/messages

seems to show the following when I can no longer use the name of the site/machine
Jan 16 23:01:03 didius NetworkManager: <WARNING>         
add_ip4_config_to_named (): Could not set forwarders for zone '.'.  
Error: 'No reply within specified time'.
When I restart named  I get the following in /var/log/messages

Jan 16 23:00:38 didius named[2410]: shutting down: flushing changes
Jan 16 23:00:38 didius named[2410]: stopping command channel on 127.0.0.1#953
Jan 16 23:00:38 didius named[2410]: no longer listening on 127.0.0.1#53
Jan 16 23:00:38 didius named[2410]: no longer listening on 192.168.1.45#53
Jan 16 23:00:38 didius named[2410]: exiting
Jan 16 23:00:38 didius named[2532]: starting BIND 9.3.3rc2 -u named -D
Jan 16 23:00:38 didius named[2532]: found 1 CPU, using 1 worker thread
Jan 16 23:00:38 didius named[2532]: loading configuration from '/etc/named.conf'Jan 16 23:00:38 didius named[2532]: listening on IPv4 interface lo, 127.0.0.1#53Jan 16 23:00:38 didius named[2532]: listening on IPv4 interface eth0, 192.168.1.45#53 Jan 16 23:00:38 didius named[2532]: command channel listening on 127.0.0.1#953 Jan 16 23:00:38 didius named[2532]: zone 0.in-addr.arpa/IN: loaded serial 42 Jan 16 23:00:38 didius named[2532]: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700 Jan 16 23:00:38 didius named[2532]: zone 255.in-addr.arpa/IN: loaded serial 42 Jan 16 23:00:38 didius named[2532]: zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 1997022700 Jan 16 23:00:38 didius named[2532]: zone localdomain/IN: loaded serial 42
Jan 16 23:00:38 didius named[2532]: zone localhost/IN: loaded serial 42
Jan 16 23:00:38 didius named[2532]: D-BUS dhcdbd subscription enabled.
Jan 16 23:00:38 didius named[2532]: D-BUS service enabled.
Jan 16 23:00:38 didius named[2532]: running

Sometimes I can go for several hours with out a problem. Other times it is a matter of minutes.
Any help gratefully appreciated.

~~R

Looks to me like you might not be configured quite right; what does /etc/resolv.conf look like on your system? This will tell us who the machine thinks are the local DNS servers.

Thanks Bill.


I wondered about resolv.conf and here is what it says. Note that I have NetworkManager running:

  $ cat /etc/resolv.conf
  # generated by NetworkManager, do not edit!

  ; Use a local caching nameserver controlled by NetworkManager

  search myhome.westell.com

  nameserver 127.0.0.1


myhome.westell.com is the DSL modem/router . I was expecting to see
nameserver 192.168.1.1

instead of 127.0.0.1, since that is how my FC6 machine is running, but I've not been able to determine where I should change the configuration so this occurs. Since NetworkManager is running changing resolve.conf directly fixes nothing since it changes it on the fly.
~~R


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