- Neil Aggarwal n...@jammconsulting.com wrote:
I am trying to figure out if there is a way to
use snmpd on the host to measure the traffic
usage of the guests. I do not want to require
anything running on the guests since I do not
control them.
[...]
Is there a better way to determine
Using CentOS Xen current with the 5.4 update applied.
I need to move a Windows 2008 installation in LVM2 from one pv/vg/lv to
different disk pv/vg/lv.
What are considered safe ways to move it on same machine and retain a
copy until sure it reboots?
Turn off (shutdown) in Xen create identical
Ben M. wrote:
Using CentOS Xen current with the 5.4 update applied.
I need to move a Windows 2008 installation in LVM2 from one pv/vg/lv to
different disk pv/vg/lv.
What are considered safe ways to move it on same machine and retain a
copy until sure it reboots?
Turn off (shutdown) in
I read the man on pvmove and it looks very cool, especially the
auto-continue if there is some sort of system interruption. I plan to
try this on a new, non-production machine I am building out, but need to
do something right now on the Windows LV.
BUT, according to 'man pvmove' it doesn't
- Ben M. cen...@rivint.com wrote:
BUT, according to 'man pvmove' it doesn't have a switch to leave a
copy
behind, or the old extents in place for a fallback. That makes me a
little apprehensive about having something ready to roll back to in
its
most current data state.
Right, it
- Ben M. cen...@rivint.com wrote:
Does this appear to be a sound procedure? I have one inline question.
I read your version of the procedure and it looks like you want to skip the
pvmove. That's fine, but it means more downtime (an unreliable estimate is one
minuted per GB). In that case,
- Ben M. cen...@rivint.com wrote:
Ack. It wants to be in same Volume Group. I want to keep my VGs
segregated to PVs segregrated to distinct harddrives (or devmapped
raid1s).
Mm hmm. pvmove only works within a VG. You would need to do the vgextend for it
to at least be temporarily joined
Ah, vgsplit. That is likely the answer. I was completely unfamiliar with
that command.
Going to try that now.
Good stuff again, thanks for the simple straightforward procedures.
Ben M. wrote:
Oops, I pasted in the wrong notes of what I was sketching out... very
sorry about that confusion.
A little bit of knowledge is a dangerous thing.
I just wrote to the wrong lv with a dd and lost 5 days of work on a
project. Dumb, dumb, dumb.
Ben M. wrote:
Ah, vgsplit. That is likely the answer. I was completely unfamiliar with
that command.
Going to try that now.
Good stuff again,
What a mess that turned out to be. Hey, maybe it was your awesome
numbering ducking and running. jk, probably because I forgot to take
some meds today or something.
I run into an occasional issue with dropping temp pv's assigned to vg's
to move things around. I've learned to do pvck, vgck,
Did you allocate the new LV with the same number of extents on a VG
with the same extent size? It should work perfectly, if so.
Ah, no, the target VG was a bit larger.
Will try that next. I'm toasted for the evening, time to back off. Been
sweating the client's delivery of their project
Yo te recomiendo utilizar Sunray. Actualmente tengo 4 servidores con Centos
4.5 y sobre ellos SunRay 4.0. Cada servidor tiene 8GB de RAM y dos
procesadores Xeon con dos nucleos cada uno. Con eso sirvo a 150 clientes que
utilizan OpenOffice y Firefox entre otros. La comparticion de los home la
Pedro C. Arias escribió:
Desearia saber si alguien tiene experiencia o ha armado alguna solucion de
escritorios remotos con Software libre, la idea es armar algo parecido a un
entorno Micro$oft con TS, es decir con Linux y estaciones(clientes delgados)
que trabajen contra un escritorio
Hmm no. Time to read the notes. Thanks for your help!
On Sat, 24 Oct 2009, Robert wrote:
Rohan Gilchrist wrote:
Hello,
I thought I'd wait a little while before upgrading to 5.4, but am
running into the following errors:
- Finished Dependency Resolution
lvm2-2.02.46-8.el5.i386 from
Hi,
I had following errors while I was compiling VLC 1.0.2 on CentOS 5.2:
modules/access/file.c:52:28: error: linux/magic.h: No such file or directory
../../../modules/access/file.c: In function ‘IsRemote’:
../../../modules/access/file.c:141: error: ‘AFS_SUPER_MAGIC’
undeclared (first use in
Hi,
I'd like to test the status of a remote machine in a script. Something like:
IF remote machine is switched on / connected to the network...
... THEN launch backup.
How would you go about that?
Cheers,
Niki
___
CentOS mailing list
2009/10/25 Niki Kovacs cont...@kikinovak.net:
IF remote machine is switched on / connected to the network...
Use ping and test the result; perhaps something similar to this:
case `ping -qnc 1 10.0.0.2 21` in
*'100% packet loss'*)
exit 1
;;
esac
See the script at the bottom
Brian Schueler wrote:
Hi!
As far as I can see there is no kvm in the base repository but
the older version 36 in CentOS-Extras. Version 83 that belongs
to 5.4 is only found on the install DVD and CD-Set.
So it's different when installing kvm later with yum which results
in kvm-36 than
I noticed that when I went over to CentOS-5.4
on my server (and re-booted),
my openvpn connections failed for a couple of hours,
and then came back.
Has anyone noticed this?
What puzzled me was that the tun0 interface
was present on all machines (according to ifconfig)
but the connections seemed
On Sun, 25 Oct 2009 21:58:03 +1100
hce webmail@gmail.com wrote:
Hi,
I had following errors while I was compiling VLC 1.0.2 on CentOS 5.2:
modules/access/file.c:52:28: error: linux/magic.h: No such file or directory
.../../../modules/access/file.c: In function ‘IsRemote’:
On Sun, Oct 25, 2009 at 6:58 AM, hce webmail@gmail.com wrote:
I had following errors while I was compiling VLC 1.0.2 on CentOS 5.2:
Why not use a repository like rpmforge which provides vlc in a nice
shiny prebuilt rpm?
Also, are you really still on 5.2? If so, you should very much
To All,
Thanks to the CentOS guys for 5.4; sure appreciate your work.
I have one question. I had to remove perl-5.8.8-18.el5_3.1.i386 on two
x86_64 machines in order to get perl.x86_64 4:5.8.8-27.el5 to update.
Does this represent a change from 5.3 to 5.4 and should I be concerned
about the
We have now published the sixth version of the Newsletter and I think
it is time to ask YOU ( the reader ) what we can improve. The current
trend is away from really technical details more to a light read and
entertaining stuff. Is this a good way to go. Or should we focus more
on the
Frank Thommen wrote:
Hi,
We have now published the sixth version of the Newsletter [...]
What newsletter are you referring to? I cannot find any newsletter
offer on centos.org.
frank
Its in the wiki
http://wiki.centos.org/
-
Niki Kovacs wrote:
Hi,
I'd like to test the status of a remote machine in a script. Something like:
IF remote machine is switched on / connected to the network...
... THEN launch backup.
How would you go about that?
I always recommend backuppc (either from
Gilbert Sebenste wrote:
On Sat, 24 Oct 2009, Philip Gwyn wrote:
On 24-Oct-2009 Oliver Ransom wrote:
I don't think there are any ramifications/disadvantages of running the
SSH daemon on a non standard port.
Unless I want to sftp. It always looks for port 22; if I do:
sftp SERVER
It
I just wrote a little script, that will echo a message to the user, if it
doesn't have enough permission:
$ if ! [ $(env LC_MESSAGES=C ifconfig wlan0 down | grep -i denied) == ];
then echo no permission; fi
SIOCSIFFLAGS: Permission denied
$ sudo su
[sudo] password for USER:
# if ! [
Les Mikesell a écrit :
I always recommend backuppc (either from http://backuppc.sourceforge.net/ or
the
package in epel) because it does all this for you and gets it right.
This looks interesting, and I will take a closer look.
I'm right now knee-deep in this :
Why need perl-5.8.8-18.el5_3.1.i386 on x86_64 box ?
On Sun, Oct 25, 2009 at 16:02, Gregory P. Ennis po...@pomec.net wrote:
To All,
Thanks to the CentOS guys for 5.4; sure appreciate your work.
I have one question. I had to remove perl-5.8.8-18.el5_3.1.i386 on two
x86_64 machines in order
I asked myself that same question, and when I reviewed my notes on the
install I had some packages that would only work with perl.i386 which
required me to install it. Unfortunately, I did not document what those
packages were, and can not remember which ones required .i386 to test
them. 5.0
Hello everyone,
Now after the recent discussion on running SSH on a different port, I decided
to start a new thread but with SELinux involved.
Assuming that you have SELinux enabled, and that you changed the default port
for SSHD, let say for 1234, when I restart SSHD I don't get any AVC
Niki Kovacs wrote:
Les Mikesell a écrit :
I always recommend backuppc (either from http://backuppc.sourceforge.net/ or
the
package in epel) because it does all this for you and gets it right.
This looks interesting, and I will take a closer look.
I'm right now knee-deep in this :
Saturday I did an upgrade from 5.3 (original install) to 5.4. Saturday
night, /etc/cron.weekly reported the following:
/etc/cron.weekly/99-raid-check:
WARNING: mismatch_cnt is not 0 on /dev/md0
md0 holds /boot and resides, mirrored, on sda1 and sdb1. md1 holds
an LVM volume
Devin Reade wrote:
Saturday I did an upgrade from 5.3 (original install) to 5.4. Saturday
night, /etc/cron.weekly reported the following:
/etc/cron.weekly/99-raid-check:
WARNING: mismatch_cnt is not 0 on /dev/md0
md0 holds /boot and resides, mirrored, on sda1 and sdb1.
On Sun, 2009-10-25 at 12:33 -0600, Devin Reade wrote:
Saturday I did an upgrade from 5.3 (original install) to 5.4. Saturday
night, /etc/cron.weekly reported the following:
/etc/cron.weekly/99-raid-check:
WARNING: mismatch_cnt is not 0 on /dev/md0
I had this happen on a
Jorge Fábregas wrote:
Hello everyone,
Now after the recent discussion on running SSH on a different port, I
decided
to start a new thread but with SELinux involved.
Assuming that you have SELinux enabled, and that you changed the default port
for SSHD, let say for 1234, when I
On Sunday 25 October 2009 03:06:58 pm Ned Slider wrote:
The SSH daemon runs as an unconfined service in SELinux (at least on
RHEL4 and 5), so SELinux has no effect on SSH. Same as a bash shell runs
unconfined.
Thanks Ned! That's it. I missed the following check:
# ps -eZ | grep sshd
I've been checking the updates tree for 5.4 and notice that they're empty.
I checked 4 or 5 different servers and got the same results. This is,
in my experience, unusual; there's typically patches for the new release
from day one. But it could be that the 5.4 DVD is up to date.
So I checked
On Fri, Oct 23, 2009 at 12:12 PM, Kemp, Larry larry.k...@usmetrotel.comwrote:
I have a CentOS system that is hanging at boot. Sendmail takes forever (and
a few other apps hang as well...mainly network apps). This has proven in the
pas to be a NIC misconfiguration or a network issue. I think
During boot, you'll see (for a real brief moment), something to the
effect press I for interactive startup
A few seconds after pressing it, you will be prompted to load services
with a y/n.
Once in Ubuntu, I entered rescue mode by entering grub startup options
at the command prompt,
On Sat, Oct 24, 2009 at 9:31 AM, mark m.r...@5-cent.us wrote:
David Suhendrik wrote:
Still waiting for DVD 5.4 64 bit
There's a couple of mirrors that have it. I looked through several .edu
site -
I think RIT had one.
mark
The Clarkson mirror also carries the DVDs.
Kemp, Larry wrote:
I have a CentOS system that is hanging at boot. Sendmail takes forever (and a
few other apps hang as well...mainly network apps). This has proven in the
pas to be a NIC misconfiguration or a network issue. I think that is what it
is on this one too. Is there a way when I
On Sun, Oct 25, 2009 at 3:23 PM, aurfal...@gmail.com wrote:
During boot, you'll see (for a real brief moment), something to the effect
press I for interactive startup
A few seconds after pressing it, you will be prompted to load services with
a y/n.
Once in Ubuntu, I entered rescue mode
and as it comes back up, hit a key to get the boot prompt, pick the
kernel you
want to boot, hit 'e', then select the kernel line and hit 'e' to
edit and add
'single' to the end of the line, and 'b' to boot it.
Ahh, yes this was it.
A handy thing to remember.
Alle,
We're trying to install kvm on a newly update CentOS5.4 box. Which
package should /usr/bin/qemu-img come from, kvm-qemu-img or qemu? When
we try to install kvm\* we get the following error:
Transaction Check Error:
file /usr/bin/qemu-img from install of
On Sun, 2009-10-25 at 14:52 -0400, Ron Loftin wrote:
On Sun, 2009-10-25 at 12:33 -0600, Devin Reade wrote:
Saturday I did an upgrade from 5.3 (original install) to 5.4. Saturday
night, /etc/cron.weekly reported the following:
/etc/cron.weekly/99-raid-check:
WARNING:
On 10/24/2009 05:09 PM Rohan Gilchrist wrote:
Hello,
I thought I'd wait a little while before upgrading to 5.4, but am
running into the following errors:
- Finished Dependency Resolution
lvm2-2.02.46-8.el5.i386 from base has depsolving problems
-- Missing Dependency: device-mapper =
Les Mikesell a écrit :
The big win with backuppc is that it will also compress the files and find
matches across multiple machines and hard-link all identical content. Plus
you
get a nice web interface to configure it and browse/restore.
Sound nice. Probably a case of: now I found a
Niki Kovacs wrote:
Les Mikesell a écrit :
The big win with backuppc is that it will also compress the files and find
matches across multiple machines and hard-link all identical content. Plus
you
get a nice web interface to configure it and browse/restore.
Sound nice. Probably a
RedShift redsh...@pandora.be wrote:
What exactly is the mismatch_cnt value? If it's not too much, it is most
likely coming from your swap partition.
128. md0 is /boot only; swap is on md1 which didn't have a problem
Devin
--
A zygote is a gamete's way of producing more gametes. This may
S.Tindall tindall.sat...@brandxmail.com wrote:
mismatch_cnt (/sys/block/md*/md/mismatch_cnt) is the number of
unsynchronized blocks in the raid.
Understood.
I did the repair/check on sync_action and it got rid of the problem. (Thanks)
What I _don't_ understand is why they were
Stephen Harris wrote:
I've been checking the updates tree for 5.4 and notice that they're empty.
snip
Is this merely a case that the 5.4 updates tree hasn't yet been pushed
out and these changes should show up in the near future (when?)...
Yes, and the announcement email said 5.4 updates
The ping method or equivalent mechanisms (such as a test ssh into the
machine) should answer the original question.
However, in the specific context of backups, a few years ago I did for
a client an evalution of various backup solutions, including a lot of
freeware and commercial products
I ran into this on Friday.I had to remove qemu, disable it from the DAG
or other repositories and install kvm-qemu-img, note also that qemu-kvm
is in /usr/libexec
Hope that helps
Camron W. Fox wrote:
Alle,
We're trying to install kvm on a newly update CentOS5.4 box. Which
package
Philip Manuel wrote:
I ran into this on Friday.I had to remove qemu, disable it from the DAG
or other repositories and install kvm-qemu-img, note also that qemu-kvm
is in /usr/libexec
Hope that helps
Given the dependency issue with yum remove:
Removing:
qemu
yes I ran into this and decided to clear all of those out and start
afresh, ensuring I picked the base packages.
Phil.
Camron W. Fox wrote:
Philip Manuel wrote:
I ran into this on Friday.I had to remove qemu, disable it from the DAG
or other repositories and install kvm-qemu-img, note
On Fri, Oct 23, 2009 at 12:07 PM, Neil Aggarwal n...@jammconsulting.comwrote:
Matt:
depending on what your using for virtualization, you might be able to
pull
all
of those stats with snmp on the host.
I am using KVM on CentOS 5.4
Let me know if you think it is possible to gather
I have run a local repo for Centos updates for some time.
I suppose, at this point I could just delete the 5.3 update directory
and rsync the 5.4 directory...
But how large is the 5.4 update directory?
Oh, just for i386, without /debug and is there anything else I should
not include? For
The output message Permission denied comes from STDERR not from STDIN.
You should redirect stderr to stdin on your command, to make it work.
ifconfig wlan0 down 21 | grep -i denied
On Sun, Oct 25, 2009 at 2:42 PM, Eugeneapolinary Ju
eugeneapolinar...@yahoo.com wrote:
I just wrote a little
Couple of diff ways to go about this.
I use Cacti and monitor throughput via SNMP for the dom0.
I also enable SNMP on my switch and monitor throughput of individual
ports.
However if you want granularity like monitoring at the network layer
(IP or layer 3), then you can look at the
I think I have a solution:
In the guests' XML files, I set a target device name
so they will always use a known device (Instead of
getting an aribtrary vnet* device).
Next, using snmp on the host, I can get the interface stats
for that device and use cacti to graph it.
Thanks to everyone
On Sun, 2009-10-25 at 10:02 -0500, Gregory P. Ennis wrote:
To All,
Thanks to the CentOS guys for 5.4; sure appreciate your work.
+1
I have one question. I had to remove perl-5.8.8-18.el5_3.1.i386 on two
x86_64 machines in order to get perl.x86_64 4:5.8.8-27.el5 to update.
I had this on
On Tue, Oct 13, 2009 at 12:02:26PM -0700, Drew wrote:
Like Max I don't have pager pay but I do get paid for call outs.
My phone is fully paid for (approx $60/m) and call outs are paid at
time and a half (Sunday is double time), minimum one hour. All travel
time is considered call out time
ML wrote:
HI All,
With my new firewall in place, it has opened my eyes to how much
traffic gets blocked in a single day and also what are the most active
rules. I get *a lot* of requests for port 22.
How does one switch ssh ports? What is a good port to use? What
ramifications does
So it looks like it is a download of the OS tree, not the UPDATES tree.
Great, and how large will that be?
Robert Moskowitz wrote:
I have run a local repo for Centos updates for some time.
I suppose, at this point I could just delete the 5.3 update directory
and rsync the 5.4 directory...
On Thu, Oct 22, 2009 at 01:34:01PM +0200, RoLaNd RoLaNd wrote:
Hello,
thanks for your prompt reply..
i was leaving that option as a last resort...
the problem is that this machine is a production machine
so if i rsync, i need to turn off the services in order to copy files or
Alle,
We are looking to transition from OpenLDAP to CentOS DS. We currently
using OpenLDAP V2.3.43-3 with both RHEL 5.4 and Solaris10 clients
(auth/netgroup/automount).
We restrict user login access to the RHEL and Solaris machines using
netgroups. After configuring the CentOS
Hi Robert,
I have run a local repo for Centos updates for some time.
You actually bring up a good item here. I am starting to learn more
and deploy CentOS. I should run a local repo too, save bandwidth, etc.
Do you have a tutorial for setting up a local repository? Can one
store, say
Dear All
Please be informed that I checked for the presence of internal modem on my
CentOS server , as the followings :
#dmesg |grep -i modem
#lspci |grep -i modem
#lshw |grep -i modem
According to the output , it seems that my CentOS client does not contain
internal modem . So I decided to add
For goodness sake keep a log.
On call jobs often violate state and federal rules
for exempt and non-exmpt status. Mileage for the second
trip to the office should be compensated in some cases.
I've checked with our Provincial Federal laws and our Pager Pay
setup is legal. It should also be
hadi motamedi wrote:
Dear All
Please be informed that I checked for the presence of internal modem
on my CentOS server , as the followings :
#dmesg |grep -i modem
#lspci |grep -i modem
#lshw |grep -i modem
According to the output , it seems that my CentOS client does not
contain internal
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