Les Mikesell wrote:
> On 6/13/2011 1:02 PM, m.roth@xxxxxxxxx wrote:
>> We just went to replace the bridge/firewall services one one server with
>> the same on another. It's pretty simple, and I literally cloned (w/
>> rsync) a third server that does this onto the one that will be the new
>> one.Then
>> copied the /etc/sysconfig/iptables from the one being replaced, and
>> brought it up this morning.
>>
>> Nope. We had to put everything back the way it was.
>>
>> The new one sees the two or three servers behind the firewall, and we
>> can ping them, from the new box. On one, we see IPP broadcasts; in fact,
>> we
>> see lots of broadcast packets using tcpdump. From outside, though, you
>> can't see the servers. Trying to ping them, they see nothing. It seems
>> to be the case that tcp and icmp packets are blocked, and we can't figure
>> out why.
<snip>
> Are the HWADDR= entries fixed up to match the actual hardware after the
> copy? And does ifconfig show that your config actually set up what you
> expected? CentOS isn't very predictable in terms of which NIC gets
> which interface name.
Yes. And I made sure of that, before we started this excersize. (And my
manager asked the same question - he's one of us, you see, *not* a PHB)
mark
mark
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