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Re: fedora-list Digest, Vol 19, Issue 69



> 
> On Friday 09 September 2005 06:05, Murray, WJ (Bill) wrote:
> > I debugged for a while, and it seems that if I call 'host' twice,
> > the first is fine, but the second call breaks dns. Or running the
> > rhn_applet_gui breaks it. However, the '/sbin/route' command will
> > correctly give the gw name rather than address as many times as you
> > like, and presumably is does a dns lookup to find it.
> >
> >  Machines in the 'hosts' file are still correctly translated.
> >
> >   Can anyone suggest what is wrong? Note, I do not know WHY dns isn't
> > working.
> >             Thanks,
> >                Bill
> Do you have any iptables rules there? Do you get any output 
> in /var/log/messages or the xen logs? What version of the kernel/xen are you 
> running?
> 
> Peter.
> 
> 
Thanks for both ideas..
    iptables I need to follow up, and will.

kernel-xen0-2.6.12-1.1447_FC4
and
xen-2-20050823

are the FC4 updates-released latest.
 
  /var/log/messages was completely blank, until I echoed the output
 from 'top' and 'route' once a second into it. That tells me when it
breaks, but there is not always an obvious associated activity from top.

   But I didn't notice xend.log. This has plenty of errors, but they
occur 5 minutes before DNS goes down. Maybe it helps? e.g.:

[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + set -e
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
OP=start
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + shift
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + for arg
in '"$@"'
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + export
bridge=xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
bridge=xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + for arg
in '"$@"'
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + export
antispoof=no
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
antispoof=no
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
bridge=xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
netdev=eth0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
antispoof=no
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + echo
'*network start bridge=xen-br0 netdev=eth0 antispoof=no'
[2005-09-09 10:32:11 xend] INFO (process:35) [network-bridge] network
start bridge=xen-br0 netdev=eth0 antispoof=no
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + case
${OP} in
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
op_start
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + '['
xen-br0 == null ']'
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
create_bridge xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + local
bridge=xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + brctl
show
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + grep -q
xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + brctl
addbr xen-br0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + brctl
stp xen-br0 off
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] + brctl
setfd xen-br0 0
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
ifconfig xen-br0 up
[2005-09-09 10:32:11 xend] ERROR (process:37) [network-bridge] +
ifconfig
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + grep -q
veth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
ifconfig veth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + grep -q
veth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] ++
ifconfig eth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] ++ grep
HWadd
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] ++ sed -e
's/.*\(..:..:..:..:..:..\).*/\1/'
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
mac=00:03:47:C9:87:B7
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ifdown
eth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ip link
set eth0 name peth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ip link
set veth0 name eth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
ifconfig peth0 0.0.0.0 -arp down
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
ifconfig peth0 hw ether fe:ff:ff:ff:ff:ff
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
ifconfig eth0 hw ether 00:03:47:C9:87:B7
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
add_to_bridge xen-br0 vif0.0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + local
bridge=xen-br0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + local
dev=vif0.0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + brctl
show
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + grep -q
vif0.0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + brctl
addif xen-br0 vif0.0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] +
add_to_bridge xen-br0 peth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + local
bridge=xen-br0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + local
dev=peth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + brctl
show
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + grep -q
peth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + brctl
addif xen-br0 peth0
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ip link
set xen-br0 up
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ip link
set vif0.0 up
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ip link
set peth0 up
[2005-09-09 10:32:12 xend] ERROR (process:37) [network-bridge] + ifup
eth0


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