DNS problem solved but.....

DNS problem solved but.....

[Tony Gogoi]

Hello,

the dns problem was solved. all that happened was that 'named' failed on
all dns servers and had to be restarted on each.

Any pointers on why "named" stopped on all servers ? The log doesn't
mention anything strange...

Thanks,
Tony


Tony Gogoi

Re: DNS problem solved but.....

[Glynn Clements]

Tony Gogoi wrote:

> the dns problem was solved. all that happened was that 'named' failed on
> all dns servers and had to be restarted on each.
> 
> Any pointers on why "named" stopped on all servers ? The log doesn't
> mention anything strange...

If named terminates normally, it will write log messages like:

Jun 30 19:28:51 cerise named[585]: shutting down
Jun 30 19:28:51 cerise named[585]: no longer listening on 127.0.0.1#53
Jun 30 19:28:51 cerise named[582]: exiting

It will also remove the named.pid file (typically in /var/run or
/var/run/named).

If named isn't running, but there are no shutdown messages and
named.pid still exists, then named terminated abnormally (e.g. due to
a segmentation fault, failure to allocate memory, SIGKILL etc).

Apart from anything else, you should check whether the OS vendor has
issued an updated version. Bugs have been found in previous versions
of named which could result in it crashing if it received a malformed
packet. Such bugs have security implications; for exposed network
daemons, it is essential to keep up-to-date with any fixes.

-- 
Glynn Clements <glynn.clements@virgin.net>

Does Linux Redhat 9 reassign eth numbering?

[Eve Atley]

We've had quite a hectic morning here where I work. Our Linux Redhat 9 box
was connected to the Internet, but nobody on the network was able to access
the Internet / Server. We narrowed the problem down to a bad network card.

After some configuration, my question...

Upon first boot, Linux found we had removed the old card. We removed the old
configuration. It then prompted us about the insertion of the new card; we
automatically configured it. We were unable to set up our card correctly,
however, until we discovered that apparently, what had once been eth0 was
now eth1. We got things working after we switched the good working card to
its original assignment of eth0.

Therefore, does Linux default to eth0 if an old configuration is removed?

Thanks,
Eve Atley

Re: Does Linux Redhat 9 reassign eth numbering?

[Juan Carlos Inostroza]

On Tue, 2004-07-06 at 13:20, Eve Atley wrote:
> Therefore, does Linux default to eth0 if an old configuration is removed?

That's kudzu. He's a little grumpy sometimes ;-)

Maybe editing /etc/modules.conf and changing the order of the modules
(by example, 

alias eepro100 eth0
alias dmfe eth1

so, changing the order

alias dmfe eth0
alias eepro100 eth1

loads the cards correctly).

In your case, (having one network card?), maybe editing modules.conf and
reestarting the network service will be fine :-)

Greetings!
-- 
Juan Carlos Inostroza O.
Registered Linux User #246002
jci@tux.cl - http://www.tux.cl - http://foros.tux.cl
Blogging for fun _and_ profit : http://jci.codemonkey.cl
"Beyond the senses is the mind, and beyond the mind is the reason,
its essence."
		-- Katha Upanisad 6.7

RE: Does Linux Redhat 9 reassign eth numbering?

[Eve Atley]

>Maybe editing /etc/modules.conf and changing the order of the modules

The network manual mentioned something like what you suggest. :) We switched
it using the Network Configuration Panel GUI that Redhat has built in...no
reboot required? At any rate, we have two cards.

If we should need to restart the network service in the future from the
terminal, is it...
service network restart
?

Thanks,
Eve Atley

RE: Does Linux Redhat 9 reassign eth numbering?

[Juan Carlos Inostroza]

On Tue, 2004-07-06 at 13:43, Eve Atley wrote:
> >Maybe editing /etc/modules.conf and changing the order of the modules
> 
> The network manual mentioned something like what you suggest. :) We switched
> it using the Network Configuration Panel GUI that Redhat has built in...no
> reboot required? At any rate, we have two cards.

No reboot required. But maybe unloading the modules and restarting the
net service could do the trick.

In plain linux: put the networking service down _FIRST_ , unload the
network modules _and_ restart the networking service.

> If we should need to restart the network service in the future from the
> terminal, is it...
> service network restart

or "alla systemV":
/etc/init.d/network restart

(or is it networking? ;-) )

Greetings!

-- 
Juan Carlos Inostroza O.
Registered Linux User #246002
jci@tux.cl - http://www.tux.cl - http://foros.tux.cl
Blogging for fun _and_ profit : http://jci.codemonkey.cl
"Beyond the senses is the mind, and beyond the mind is the reason,
its essence."
		-- Katha Upanisad 6.7

Re: Does Linux Redhat 9 reassign eth numbering?

[Milan P. Stanic]

On Tue, Jul 06, 2004 at 01:32:29PM -0400, Juan Carlos Inostroza wrote:
> On Tue, 2004-07-06 at 13:20, Eve Atley wrote:
> > Therefore, does Linux default to eth0 if an old configuration is removed?
> 
> That's kudzu. He's a little grumpy sometimes ;-)
> 
> Maybe editing /etc/modules.conf and changing the order of the modules
> (by example, 
> 
> alias eepro100 eth0
> alias dmfe eth1
> 
> so, changing the order
> 
> alias dmfe eth0
> alias eepro100 eth1

Safer way is to use nameif which maps MAC (hardware, Ethernet) address
to interface name. "man nameif" will give you all answers.

Note: I don't know if nameif exists in RH Linux but if the RedHat
didn't packaged such basic Linux tools it is shame on them.

Re: Does Linux Redhat 9 reassign eth numbering?

[Jim C. Brown]

On Tue, Jul 06, 2004 at 11:50:25PM +0200, Milan P. Stanic wrote:
> Safer way is to use nameif which maps MAC (hardware, Ethernet) address
> to interface name. "man nameif" will give you all answers.
> 
> Note: I don't know if nameif exists in RH Linux but if the RedHat
> didn't packaged such basic Linux tools it is shame on them.

Mine didn't. (Of course, when I installed Redhat it was the 6.0 CD, it seems
that Redhat 7.3 and above should have it, as should Fedora.) Just in case:

ftp://fr.rpmfind.net/linux/redhat/7.3/en/os/i386/RedHat/RPMS/net-tools-1.60-4.i386.rpm

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-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.