DIG tells you which server returned the results. Look for the SERVER
line, should be third from the bottom. If you want to query specific
nameservers directly, use dig like this:
dig @ns1.myserver domainname.com
dig @ns2.myserver domainname.com
etc, etc.
-Ken
- Message from [EMAIL
This line ...
;; SERVER: 4.2.2.1#53(4.2.2.1)
... tells you the DNS server which returned the result, which in this
case, is more than likely a caching (recursive) DNS server. If
verbose enough logging is enabled on that caching server, it should
tell you which primary DNS server
Ok, sorry, let me re-phrase.
I want to know on my own server, which of my nameservers replied to the
DNS query. In this example 4.2.2.1 is our ISP's upstream DNS server,
which is configured in /etc/resolv.conf - so it should technically
appear there.
But, let's say I query host1.myserver.co.za
On 7/30/07, Martin Hamant [EMAIL PROTECTED] wrote:
# uname -a
Linux *** 2.6.9-55.0.2.EL #1 Tue Jun 26 14:08:18 EDT 2007 i686 i686
i386 GNU/Linux
# modprobe drbd
FATAL: Error inserting drbd
(/lib/modules/2.6.9-55.0.2.EL/extra/drbd.ko): Invalid module format
What do you see with this
Should I use the graphical update or just yum update?
Also are there any updates I should be concerned about?
Should I update now, or after I resolve the smtp issue?
RHEL has a decent GUI, however you will be better off ignoring it and
getting familiar with administering the box via the
Jason,
This has nothing to do with AUTHORITATIVE dns. I'm speculating this
is a problem with your choice of RECURSIVE (caching) name servers.
Realize, however, that without being on the box and looking at your
configuration, all I can do is speculate.
Mail .medvoice.com
You are correct, resolve.conf does list my isp's dns 250.171.3.65 which
is qwest. The internal windows workstations also point o the isp's dns
server.
Can I setup a cashing dns server on the mail server itself??
Absolutely. Assuming that none is running already:
# netstat -l | grep -e domain
The only problem is when I use netstat -l | grep -e domain -e 54 i
get warning, got duplicate tcp line.
a netstat -l gets me the folowing.
Is this ok?
yes. BIND simply bound :-) to all IP's.
-ken
___
CentOS mailing list
CentOS@centos.org
'ftps' is kind of an orphan, I don't believe there's actually any sort
of RFC or spec for it. pretty much everything I've seen uses
sftp/scp/ssh instead
Forgive me, but i simply don't understand that statement. Both SFTP
and FTPS are very much alive and well in the real world. Each has
What do people suggest?
Thanks.
Scott
Scott,
RSYNC!
For info: http://en.wikipedia.org/wiki/Rsync
Homepage: http://rsync.samba.org/
Clients available for Win32 as well. This is an easy, tried-and-true
method of backing up a workstation (or other servers) to a central
server.
Before you go throwing together a solution, you need to check the laws
in your state and country. Here in the US there are laws that say how
patient data can be stored. There are compliant software packages for
Dr's and Hospitals that include everything they need including stuff
like medical
My best tip for tuning performance:
Don't until performance becomes an issue otherwise you have no
basis of determining whether performance has improved.
Let me add a second tip:
Don't tune a parameter unless you know what is does.
While probably not popular, those are very good tips.
I
I pretty much left them at the defaults. I tuned a couple tcp
settings based on RHEL's best practices guide, but there wasn't any
noticeable performance impact.
In your configuration did you tune any sysctl settings or leave with
defaults?
Graham Johnston
Manager, Network Services
What you're asking can be done a number of ways with different levels
of complexity, the simplest using routing tables and IPTABLES.
Instead of asking this list how to technically do this, I'd suggest
that first you describe what you're trying to accomplish at a higher
level. And be very
OpenVPN doesn't support IPSec at all. It's an SSL implementation.
You'll want to look at Openswan (http://www.openswan.org/) for IPSec.
PS. The www is very important when going to the openswan site.
Their webserver is configured funky.
For Microsoft compatibility, Poptop and Openswan
First, some light reading:
http://lartc.org/howto/
Secondly, take a look at how RedHat/CentOS uses network startup scripts:
http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/en-US/Reference_Guide/pt-network-services-reference.html
Thirdly, READ THIS ENTIRE DOCUMENT. Seriously. Not
In the event that the internet connection is DOWN (box is fine just the
cable modem is down)
how do I set things up so I can take advantage of the second internet
connection?
there are more ideal [and complex] ways of setting up the connections
so you only use one firewall - maybe using the
this may be helpful:
http://www.nanotechnologies.qc.ca/propos/linux/centos-live/i386/live/
This is great! Been looking for this for a while. Just created a
couple test images without any issues or surprises.
I would like to point out that this MIGHT be how we build the livecd for
Thanks Ken.That's a good thing to know that software striping won't
really boost performance, i then won't waste money on that avenue.
I cannot explain why as i don't know about Linux drivers
architecture and general system low level behavior but maybe
somebody on this list could give
Tom,
Check out the following URL. It should answer most [all?] of your
questions about creating an iSCSI target using two CentOS boxes,
Heartbeat, and DRBD.
http://www.pcpro.co.uk/realworld/82284/san-on-the-cheap.html
Hope this helps.
-Ken
Ross,
I can use DRBD to mirror data between
Alrighty. I'm having a hell of a time and I need help. I'll try to
give as much information as possible.
--
HARDWARE
--
MB:
Supermicro PDSBM-LN2+
Intel 946GZ
ICH7R + Intel® 82573
Memory:
Crucial 512Mb, 1Gb, 2Gb modules matched to above MB.
Processors:
Intel Celeron 420
Ken Price wrote:
Anyone out there with similar problems and/or workarounds? Any ideas?
install using a serial console, and capture the entire kernel panic
from the console if you can. Have you tried any disk controllers other
than the promise ?
For me, if hardware SATA raid, it's 3Ware
ICH7R + Intel® 82573
Memory:
Crucial 512Mb, 1Gb, 2Gb modules matched to above MB.
according to Intel, this chipset supports DDR2 667Mhz memory only. if
you're using two dimms they should be matched pairs for dual channel
operation?
Yes. I'm using matched pairs of DDR2 667Mhz. Hmmm.
another distro in production systems.
-Ken
- Message from [EMAIL PROTECTED] -
Date: Fri, 08 Feb 2008 18:56:58 -0500
From: Ken Price [EMAIL PROTECTED]
Reply-To: CentOS mailing list centos@centos.org
Subject: [CentOS] CentOS 5.1 Core 2 Duo Install freezes
To: CentOS
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