System Crashing

[mmcclure at pneservices.com]

That's a good idea.  In general, I start with the physical layer first
when troubleshooting network issues.  Verify the cabling and NICs are
good and work with other systems without problems.

Then, check the data-link layer, such as hubs or switches, etc.  Are the
Ethernet frames getting through?

Next, the network and transport layers.  Routers, firewalls, host OSes.


----------
Mike McClure, CCIE # 5125, CISSP # 30232
PNE Services, Inc.  http://www.pneservices.com
mmcclure at pneservices.com
mobile: 913-636-5590

-----Original Message-----
From: Joe Giles [mailto:jgiles at joeman1.com] 
Sent: Thursday, August 15, 2002 8:38 PM
To: mmcclure at pneservices.com; nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] System Crashing

Well, One is a 3com 100/10 set on 100 and the other is an older NE2000
compat set on 10. I havent swopped them out as of yet, but I could
certianly try that. They were working fine, however, we all know how
computers are. Let me try that before I mess with any software. 

Thanks for the responce.

Joe

> What make and model of NICs are they?  Are they the same?
> 
> Have you tried swapping the flaky one with a known good one?
> 
> Do you have them statically set for duplex and speed, or
auto-negotiate?
> 
> ----------
> Mike McClure, CCIE # 5125, CISSP # 30232
> PNE Services, Inc.  http://www.pneservices.com
> mmcclure at pneservices.com
> mobile: 913-636-5590
> 
> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net
> [mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Joe
Giles
> Sent: Thursday, August 15, 2002 6:47 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] System Crashing
> 
> List, 
> Is there any componet in Nagios that COULD cause your system to loose
> one of your ETH devices? Since I have installed Nagios, I runs great,
> but I keep loosing ETH0. I have to do a ifup on that device to bring
it
> back. Today, I had to reboot to bring it back. When Im not using the
> Nagios, the system runs fine. Im using the INIT script that get
created
> with you do a make install-init. 
> 
> I would like to continue using the product, but I cant have my server
> down. Any help or insight would be great.
> 
> Thanks.
> 
> Background on the Server:
> RedHat 7.3
> Using Apache, MySQL, ACID, Snort, DHCP, IPCHAINS with MASQ, 2 NIC's
One
> on a public interface and One on Private. All Red Hat Network Updates
> Including the new Kernel. Let me know if you need additional info.
> 
> 
> Joe Giles
> jgiles at joeman1.com
> AOL ID: mcigiles
> 
> 
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Joe Giles
jgiles at joeman1.com
AOL ID: mcigiles



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