I'm preparing to virtualize a Windows server onto a Linux system under virsh.
Initial results are looking good, but an issue that's come up is the need to
log into the Linux system prior to being able to access the Windows system for
updates.
Is there a way to "connect" the virsh console
Thank you Chris Adams for excellent information! It worked, see below.
On Tuesday, December 7, 2021 8:25:37 PM PST Chris Adams wrote:
> Once upon a time, Lists said:
> > I understand that it's possible to allow the 4 VM guest systems to each
> > have a "direct" fi
ime, Lists said:
> > I understand that it's possible to allow the 4 VM guest systems to each
> > have a "direct" fixed IP address and access the addresses \via the host
> > network adapter, while the host retains its fixed IP.
>
> If you are running NetworkMan
I have a physical host with a single physical network adapter. I want to host
several VMs on host. (guest1 - guest4) The guest systems are accessible via
192.168.122.* as is the default with qemu/virsh.
There are 4 IP addresses being routed to the primary interface on host. I can
set up an
On Friday, January 29, 2021 6:30:33 AM PST Stephen John Smoogen wrote:
> On Thu, 28 Jan 2021 at 20:12, Lists wrote:
> > My Dell Precision M3800 running Fedora works great but is really starting
> > to
> > show its age, and I'm thinking about getting a new Mac M1-based lapto
On Friday, January 29, 2021 3:19:21 AM PST Thomas Bendler wrote:
> > The IP wanted "support IA64 based OS's and it *needs* to be an exact (VM)
> > copy of production" which most likely means "x86_64" code (not really IA64
> > which is Itanium, isn't it?).
Exactly right - I think I need to have
My Dell Precision M3800 running Fedora works great but is really starting to
show its age, and I'm thinking about getting a new Mac M1-based laptop as it
would really be useful for Video production.
But I really need to have a IA64 CentOS 7/8 VMs running locally for
development as I'm often
>
> Did you try to apply the iptable rules by hand for a test?
>
This turned out to be the exact hint I needed. I turned off firewalld, and
applied the rules I'd quoted exactly, to see a different result.
Eventually, it turned out that iptables does not expose zones, and found that
applying
I've understood iptables well enough for a long, long time, and although I
think firewall-cmd is a poor replacement for iptables, I've always been able to
"get it to work" by comparing output with iptables -L or iptables -S and using
a direct-rule or two.
And this time, I'm just baffled.
I
The list is swamped with news about CentOS 8 dying in a year and becoming
stream Linux.
IWeve been here before, folks. I remember when Red Hat Linux disappeared to
become the Feodra / Red Hat Enterprise we know today, which gave birth to
White Box Enterprise Linux, Scientific Linux, and
On Tuesday, December 8, 2020 6:32:00 AM PST Phelps, Matthew wrote:
> This is really, really bad for the majority of us using CentOS.
>
> Is there any way we can lobby for the reversal of this decision? Remember
> that the -devel mailing list, and IRC channels *do not* represent the vast
>
See bottom post below.
On Wednesday, December 4, 2019 2:24:51 PM PST Phil Perry wrote:
> On 04/12/2019 22:03, Lists wrote:
> > I have a goal of securing email. Updated the company mail server and DNS
> > (CentOS 7 + Postfix, otherwise pretty stock) with support for SPF, DKIM,
&g
I have a goal of securing email. Updated the company mail server and DNS
(CentOS 7 + Postfix, otherwise pretty stock) with support for SPF, DKIM, and
DMARC. So far, all good, and everything "just works".
Our mail server has supported SMTP / TLS for a long time, but recently I've
been
On Tuesday, November 03, 2015 10:17:22 AM Tim Dunphy wrote:
> Hey guys,
>
> We had to recompile apache 2.4.12 because we needed to disable thread
> safety in php (ZTS). Because for some reason when compiling php with the
> --disable-maintainer-zts with the worker mpm model and checking the php
>
So, with all the hubbub around POODLE and ssl, we're preparing a new load
balancer using HAProxy.
So we have a set of unit tests written using PHPUnit, having trouble
validating certificates. How do you test/validate an SSL cert for a prototype
foo.com server if it's not actually active at
really like to use a CLI browser such as curl or wget.
I've already confirmed for example, that using openssl s_client as you mention
above doesn't actually check the certs, just lists them.
Thus, the recent issues with firefox and intermediate certs would be tough to
look
On Tuesday, October 21, 2014 05:02:53 PM Travis Kendrick wrote:
On 10/21/2014 04:57 PM, li...@benjamindsmith.com wrote:
So, with all the hubbub around POODLE and ssl, we're preparing a new load
balancer using HAProxy.
So we have a set of unit tests written using PHPUnit, having trouble
I have a large disk full of data that I'd like to upgrade to SW RAID 1
with a minimum of downtime. Taking it offline for a day or more to rsync
all the files over is a non-starter. Since I've mounted SW RAID1 drives
directly with mount -t ext3 /dev/sdX it would seem possible to flip
the
On 07/24/2014 07:00 PM, SilverTip257 wrote:
On Thu, Jul 24, 2014 at 2:29 PM, m.r...@5-cent.us wrote:
SilverTip257 wrote:
On Thu, Jul 24, 2014 at 10:52 AM, m.r...@5-cent.us wrote:
m.r...@5-cent.us wrote:
I had a drive failing on a server. I've replaced it. The old drive was
/dev/sdb; the new
On 07/24/2014 06:07 PM, Les Mikesell wrote:
On Thu, Jul 24, 2014 at 7:11 PM, Lists li...@benjamindsmith.com wrote:
I have a large disk full of data that I'd like to upgrade to SW RAID 1
with a minimum of downtime. Taking it offline for a day or more to rsync
all the files over is a non-starter
On 07/02/2014 12:57 PM, m.r...@5-cent.us wrote:
I think the buzzword you want is dedup.
dedup works at the file level. Here we're talking about files that are
highly similar but not identical. I don't want to rewrite an entire file
that's 99% identical to the new file form, I just want to write
On 07/03/2014 12:19 PM, John R Pierce wrote:
you do realize, adding/removing or even changing the length of a single
line in a block of that pg_dump file will change every block after it as
the data will be offset ?
Yes. And I guess this is probably where the conversation should end. I'm
used
On 07/01/2014 06:41 PM, Lists wrote:
Am I being optimistic to think that I should be generally able to
identify and/or log ECC error correction events with EL6?
I've found the answer to my question, replying for future reference.
EDAC really only applies to older systems. Use mcelog for newer
I'm trying to streamline a backup system using ZFS. In our situation,
we're writing pg_dump files repeatedly, each file being highly similar
to the previous file. Is there a file system (EG: ext4? xfs?) that, when
re-writing a similar file, will write only the changed blocks and not
rewrite
On 06/27/2014 10:27 PM, lee wrote:
Lists li...@benjamindsmith.com writes:
$ find /lib/modules/2.6.32-431.11.2.el6.x86_64/ | grep -i -E 'edac'
[root@hume ~]# find /lib/modules/2.6.32-431.11.2.el6.x86_64/ | grep -i
-E 'edac'
/lib/modules/2.6.32-431.11.2.el6.x86_64/kernel/drivers/edac
/lib
On 07/01/2014 03:42 PM, Alexander Dalloz wrote:
Try the i7core_edac module. If that does not fit there is no EDAC
support for your Ivy Bridge generation CPU with the build-in memory
controller.
Thank you very much. Now the module is loaded but I still don't see any
devices.
[root@hume bin]#
See below
On 06/26/2014 08:11 AM, Leon Fauster wrote:
Am 26.06.2014 um 00:08 schrieb Lists li...@benjamindsmith.com:
In order to support ZFS, we upgraded a backups server with a new, ECC
motherboard. We're running CentOS 6 with ZFS on Linux, recently patched.
Now, I want to enable EDAC so we
In order to support ZFS, we upgraded a backups server with a new, ECC
motherboard. We're running CentOS 6 with ZFS on Linux, recently patched.
Now, I want to enable EDAC so we can check for memory errors (and maybe
PCI errors as well) but so far, repeatedly pounding on the Google hasn't
I have a freshly built, updated EL6 system and am having problems with
USB stability - at boot everything works fine but within a few hours,
USB devices start disappearing randomly. At first I though the USB
devices were suspect, but removing the suspect devices and an accessory
PCIE USB card
On 05/24/2014 05:13 AM, Nux! wrote:
Otherwise, you can try some of the static builds people offer, e.g.:
http://ffmpeg.gusari.org/static/ (download and run, handy in some
scenarios)
It's late, I was having an issue getting email for a while. This is
exactly the solution we've been moving
On 05/16/2014 11:23 AM, m.r...@5-cent.us wrote:
hardware doesn't support ECC.
snip
Oh, right, *all* the servers here use ECC DIMMs. And you really, REALLY
don't want to go there: a) price, b) n/s is not buffered is not
registered, none of the above compatible in the same bank, and oh, yes,
On 06/03/2014 11:52 AM, Rainer Duffner wrote:
It’s also a bit of a sorry showing for the admin putting together the system.
Perhaps, perhaps not. Remember the old saw about simplicity and
reliability? ECC ignores that saw completely, resulting in a complex,
error prone hardware landscape
On 06/03/2014 01:53 PM, Rainer Duffner wrote:
That’s why you replace both.
Or, if you build your own servers in significant quantities, you’ve got to do
you’re own stock-keeping.
Need 24 hard drives? Buy 30!
Need 12 PSUs for 6 servers? Buy 16.
This may be industry standard, and I understand
We're trying to build a rich media website, and will need to re-encode
the video content with ffmpeg. Unfortunately, the ffmpeg version that
comes with the most common repos are rather out of date. As in 0.6.5 vs
2.21 being the most current version. However, ffmpeg looks to be a
pretty thorny
We're trying to build a rich media website, and will need to re-encode
the video content with ffmpeg. Unfortunately, the ffmpeg version that
comes with the most common repos are rather out of date. As in 0.6.5 vs
2.21 being the most current version. However, ffmpeg looks to be a
pretty thorny
On 04/08/2014 10:37 AM, Phil Wyett wrote:
If you: rpm -qa | grep openssl
If you have: openssl-1.0.1e-16.el6_5.4.0.1
You have the package with affected elements disabled. These were made
until the final fixes could be brought in and applied.
If you have: openssl-1.0.1e-16.el6_5.7
You have
Mar 2014 15:10:28 -0700
Lists wrote:
When I try to NFS (v4) mount a directory, the user/group ownership shows
up as user nobody even though /etc/passwd has values for the correct
user names. How do I get it to mount with the correct user IDs?
Hello Mr. Lists:
My name is Ben :)
Here are my
On 03/19/2014 10:35 AM, Mike McCarthy wrote:
Years ago I moved sshd off port 22, disabled password logins and use
certificates after noticing my logs filling up with numerous daily
attempts at hacking into sshd.
Not only do I not use port 22, no passwords, and keys with passphrases,
the port
On 03/19/2014 12:28 PM, Frank Cox wrote:
Do your user numeric id's match between the nfs server and client?
Yes, and despite restarting all services manually, only a SIMULTANEOUS
cold reboot for both client and server resolved the issue. (I've
already rebooted by the client and server multiple
On 03/19/2014 02:44 PM, Ljubomir Ljubojevic wrote:
It is very strange that client can mount directory on DIFFERENT SERVER?
It looks like you have DNS/IP issues on your network?
I used autofs and IP address to point it to desired server, to avoid
possible DNS problems.
I've resolved this
This is one of those simple-been-doing-this-forever things that, for
some reason, has me stumped today.
When I try to NFS (v4) mount a directory, the user/group ownership shows
up as user nobody even though /etc/passwd has values for the correct
user names. How do I get it to mount with the
On 03/01/2014 08:01 AM, Les Mikesell wrote:
On Sat, Mar 1, 2014 at 3:23 AM, Paolo De Michele
pa...@paolodemichele.it wrote:
Hi everybody,
I have many server in production but I would verify this:
ex.: I have many domain in /var/www/html/ (domain1 / domain2 / domain3)
now,
How I do check
On 03/01/2014 11:20 AM, Les Mikesell wrote:
On Sat, Mar 1, 2014 at 1:14 PM, Lists li...@benjamindsmith.com wrote:
All good suggestions. I'd prefer mercurial to either of Subversion
(central repo? Blagh!)
A central repo is exactly what you want when you want one
authoritative copy and you have
On 02/28/2014 06:30 AM, Mauricio Tavares wrote:
On Fri, Feb 28, 2014 at 8:55 AM, Phelps, Matt mphe...@cfa.harvard.edu wrote:
I'd highly recommend getting a NetApp storage device for something that big.
It's more expensive up front, but the amount of heartache/time saved in the
long run is
I had promised to weigh in on my experiences using ZFS in a production
environment. We've been testing it for a few months now, and confidence
is building. We've started using it in production about a month ago
after months of non production testing.
I'll append my thoughts in a cross-post
On 03/01/2014 06:15 PM, Les Mikesell wrote:
The biggest thing for us is subversion's ability to use svn 'external'
properties at any point in a tree to reference any other svn URL.
Checkouts and updates automatically pull in those other locations into
your working copy. That lets each
On 02/25/2014 10:32 AM, Les Mikesell wrote:
On Tue, Feb 25, 2014 at 12:28 PM, Steve Clark scl...@netwolves.com wrote:
On 02/25/2014 01:17 PM, Fabrizio Di Carlo wrote:
Hello to all,
currently I have CentOS 6.4 32 bit, very simple setup on my notebook,
I want to migrate it from 32 to 64 bits
On 02/06/2014 08:41 AM, Phelps, Matt wrote:
Of course we already have notified Google.
I was hoping for a little more granularity. Google is a large place; as is
Red Hat I know. There was word that Red Hat was working with Google on a
solution, and I was hoping to hear if there was any
On 02/04/2014 12:24 PM, Fernando Cassia wrote:
Indeed. Check this out
A tour of BTRFS
http://www.youtube.com/watch?v=hxWuaozpe2I
From 2012! Lots of cool stuff, doesn't cover the current state of the
art...
And this
Dec 2012: SUSE says BTRFS is ready to rock
Was wondering if anyone here could weigh in on using BTRFS for CentOS 6
in a near production environment?
I've been using ZFS on Linux and am very happy with the results so far,
but don't particularly want to put all my eggs in one basket. Our
application architecture allows us to have
On 01/30/2014 07:25 AM, Jeffrey Hass wrote:
You could EASILY write a script (anyone do that here?) -- to monitor
that /OS file system ~ and send
alerts based on thresholds and triggers (notify the monitoring people
before they get even notified.. it's
alot of fun!) -- and put it in the
On 01/30/2014 12:28 AM, Sorin Srbu wrote:
My (sometimes unpopular) advice is to set up the partitions on servers
into two categories:
1) OS
2) Data
Absolutely. I have been doing this, without problems, for 5 years.
Keeping the two distinct is best, in my opinion.
Exactly. Why would this be
On 01/30/2014 12:58 PM, Joseph Spenner wrote:
i definitely had the same experience back then. Anybody had luck with
simply dd a current CentOS iso. I wonder if RedHat supports
ISOHybrid?
Nope. I succeeded once by manually installing grub after an install. I
have an external DVD R/W that a
On 01/29/2014 06:51 AM, James B. Byrne wrote:
I would have to ask why you're doing such a thing in the first place? You
have a perfectly good working Active Directory setup, that people are already
familiar with, I suspect with existing MS clients which integrate fully (and
properly) and you
I'm doing exactly this on a trial basis with production servers. So far,
it's working great. Some tips:
1) Flash drives are less reliable than HDDs. Software RAID1 is the way
to go.
A) Use two different makes of USB drives so that you have
different failure characteristics. If either
On 01/29/2014 08:15 AM, Matt wrote:
If I am putting both 4TB drives in a single RAID1 array for /vz would
there be any advantage to using LVM on it?
My (sometimes unpopular) advice is to set up the partitions on servers
into two categories:
1) OS
2) Data
OS partitions don't really grow much.
On 01/24/2014 11:09 PM, Emmanuel Noobadmin wrote:
However, note that there might be an issue with anaconda and big USB
storage. The boot partition anaconda creates will not boot past grub.
I needed to manually create the partition to start on sector 63 for
grub to see it. Happens on my 16GB
On 01/29/2014 01:10 PM, Les Mikesell wrote:
How so, unless you are adding disk heads to the mix or localizing
activity during your test?
Just ran into this: did a grep on what seemed to be a lightly loaded
server, load average suddenly spiked unexpectedly. Turns out that it was
performing
We have a load balancer/session server that manages sessions in small
files. I did a grep on the directory of session files and the server
load went from 0.50 to 10.x, for all intents and purposes we were down
until I canceled the grep.
According to this article on
On 01/24/2014 09:25 AM, Matt wrote:
# file -s /dev/sda
/dev/sda: x86 boot sector; GRand Unified Bootloader, stage1 version
0x3, boot drive 0x80, 1st sector stage2 0x849fc, GRUB version 0.94;
partition 1: ID=0xee, starthead 0, startsector 1, 4294967295 sectors,
extended partition table
On 13-01-14 14:52, Martin Moravcik wrote:
Hi,
For a testing purposes I'm trying to create two node HA environment for
running some service (openvpn and haproxy). I installed two CentOS 6.4
KVM guests.
Iirc CentOS 6.5 came with several updates to cluster related packages so
you may want to
On 01/09/2014 02:52 PM, m.r...@5-cent.us wrote:
Not quite - anyone mandated to POSIX standards are effectively mandated to
use the compromised algorithms, as I understand it.
That's news to me. Citation?
Recently, there was a discussion amongst BSD devs and they concluded
that they don't
On 11/30/2013 06:20 AM, Andrew Holway wrote:
Hey,
http://zfsonlinux.org/epel.html
If you have a little time and resource please install and report back
any problems you see.
Andrew,
I want to run /var on zfs, but when I try to move /var over it won't
boot thereafter, with errors about
On 12/18/2013 07:50 AM, Les Mikesell wrote:
I've always considered backuppc to be one of those rare things that
you set up once and it takes care of itself for years. If you have
problems with it, someone on the backuppc mail list might be able to
help. It does tend to be slower than native
On 12/18/2013 03:04 PM, Les Mikesell wrote:
For the people who don't know, backuppc builds a directory tree for
each backup run where the full runs are complete and the incrementals
normally only contain the changed files. However, when you access the
incremental backups through the web
Fresh load of Centos6/64 from new ISO (downloaded 2 weeks ago?) and
getting set up with PostgreSQL, one of the typical steps is to increase
shmmax from its normal, conservative value (eg: 32 MB or something) to
something far more aggressive.
But in recent installs of CentOS 6, this value is
On 12/14/2013 08:50 AM, Chuck Munro wrote:
Hi Ben,
Yes, the initial replication of a large filesystem is *very* time
consuming! But it makes sleeping at night much easier. I did have to
crank up the inotify kernel parameters by a significant amount.
I did the initial replication using
On 12/04/2013 06:05 AM, John Doe wrote:
Not sure if I already mentioned it but maybe have a look at:
http://code.google.com/p/lsyncd/
We checked lsyncd out and it's most certainly an very interesting tool.
I *will* be using it in the future!
However, we found that it has some issues scaling
On 12/07/2013 05:15 AM, psavoie1783 wrote:
On 06/12/13 09:37 PM, Patrick Lists wrote:
On 12/07/2013 02:39 AM, psavoie1783 wrote:
Hi All,
I have a marvel chipset for my wired laptop connection. It uses the
kmod-sk98lin-10.93.3.3-1.el6.elrepo.x86_64.rpm driver at elrepo.
I would like to use
On 12/07/2013 02:39 AM, psavoie1783 wrote:
Hi All,
I have a marvel chipset for my wired laptop connection. It uses the
kmod-sk98lin-10.93.3.3-1.el6.elrepo.x86_64.rpm driver at elrepo.
I would like to use this driver to activate the wired connection to
kickstart my laptop as I have pxe
Andrew,
We've been testing ZFS since about 10/24, see my original post (and
replies) asking about its suitability ZFS on Linux in production on
this list. So far, it's been rather impressive. Enabling compression
better than halved the disk space utilization in a low/medium bandwidth
(mainly
On 12/03/2013 10:16 PM, Michael Hennebry wrote:
I found my fans and am about to get some thermal
Make sure you make a note in which direction all the fans in the PC are
blowing. Usually there is an arrow on them which tells you which way
they blow but you can also feel it by holding your hand in
On 11/28/2013 10:34 PM, Timothy Murphy wrote:
I'm running postfix + dovecot on my CentOS server,
together with amavisd, clamd and spamassassin,
following the instructions in
http://wiki.centos.org/HowTos/postfix.
As far as I can see it is all working,
but I must admit I'm not clear exactly
On 11/26/2013 03:11 PM, Glenn Eychaner wrote:
[snip]
The current kernel I am running is 2.6.32-358.23.2, but I can't tell whether
it
has CONFIG_X86_MCE enabled. How can I find this out?
$ grep CONFIG_X86_MCE /boot/config-2.6.32-358.23.2.el6.x86_64
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
On 11/25/2013 05:04 PM, John R Pierce wrote:
On 11/25/2013 4:42 PM, Lists wrote:
I recently purchased a set of ASRock Intel i5 MB/CPU combos for a budget
compute cluster. Every time we load up a system and try to boot with a
recent EL6/64 ISO, we get a message that reads:
This hardware
I recently purchased a set of ASRock Intel i5 MB/CPU combos for a budget
compute cluster. Every time we load up a system and try to boot with a
recent EL6/64 ISO, we get a message that reads:
This hardware (or a combination thereof) is not supported by CentOS.
For more
information on
How to get postfix working on CentOS 6 and Comcast. Recently, they've
changed their policies regards email relay and require authentication
even to send email. (they no longer use IP address ranges, presumably in
an attempt to curb outgoing SPAM)
I didn't see an updated howto anywhere on the
On 11/16/2013 04:14 AM, Daniel Bird wrote:
On 16/11/2013 04:26, Lists wrote:
From what I've read, Intel's vPro allows for all of
these possibilities, although it does seem to be heavily Windows oriented.
Does this help?
https://communities.intel.com/community/vproexpert/blog/2011/11/03
Needed to set up a cluster where horsepower and cost were paramount, so
I thought this would be a good opportunity to try out Intel's business
class vPro AMT remote administration technology, and compare it to
IPMI, which I've used for years on servers. From a feature standpoint,
it seems
On 11/15/2013 07:30 PM, Wes James wrote:
What type of admin are trying to do on your cluster. First, to get the
most power out of your cluster, shouldn't you be running nodes in run level
3 (non gui).
You can set up ssh keys so you can create some scripts and perform your
commands (from
On 11/08/2013 10:04 AM, Joseph Spenner wrote:
Has anyone successfully installed via USB?
I remember reading some multi part instructions where the USB drive is
formatted with some special tools, often involving Windows, and various files
need to be copied to the USB drive. But I was hoping
Saw a trick today, wondering if anybody else had done/tried this? Assume
you have a 1U rackmount with 4 front-accessed drive bays, and you want
all four bays for a 4-disk RAID5 storage.
The idea is to use an internal USB adapter and a couple of bigger USB
thumb drives to install to, RAID 1
On 11/08/2013 02:06 PM, John R Pierce wrote:
On 11/8/2013 12:57 PM, Lists wrote:
Saw a trick today, wondering if anybody else had done/tried this? Assume
you have a 1U rackmount with 4 front-accessed drive bays, and you want
all four bays for a 4-disk RAID5 storage.
The idea is to use
On 10/25/2013 11:14 AM, Chuck Munro wrote:
To keep the two servers in sync I use 'lsyncd' which is essentially a
front-end for rsync that cuts down thrashing and overhead dramatically
by excluding the full filesystem scan and using inotify to figure out
what to sync. This allows
On 10/25/2013 04:38 AM, Nicolas Thierry-Mieg wrote:
interesting datapoint for HDD vs SSD, but what about kernel versions?
When using SSDs, did you need to use 3.8+ kernels as suggested in the
quoted post, or do you use stock? thanks
I've taken some flack for being off-topic regards my
On 10/24/2013 11:18 PM, Warren Young wrote:
- vdev, which is a virtual device, something like a software RAID. It is one
or more disks, configured together, typically with some form of redundancy.
- pool, which is one or more vdevs, which has a capacity equal to all of its
vdevs added
On 10/24/2013 04:42 PM, m.r...@5-cent.us wrote:
Hi, folks. This is, in fact, off-topic: I'm fighting a user's FC19 box. I
updated him, rebooted... and his ATI video card seems to not be supported
any more (and it's *not* that old - an RV620).
Google says it's from 2007 which make it ancient in
On 10/24/2013 07:03 PM, m.r...@5-cent.us wrote:
Btw, one more note: taking out all kernel lines, blacklist, and just a
*real* basic xorg.conf, in Xorg.0.log, the very first thing I see is
X.Org X Server 1.14.3
Release Date: 2013-09-12
[56.756] X Protocol Version 11, Revision 0
[
We are a CentOS shop, and have the lucky, fortunate problem of having
ever-increasing amounts of data to manage. EXT3/4 becomes tough to
manage when you start climbing, especially when you have to upgrade, so
we're contemplating switching to ZFS.
As of last spring, it appears that ZFS On Linux
On 10/24/2013 01:59 PM, John R Pierce wrote:
1) you need a LOT of ram for decent performance on large zpools. 1GB ram
above your basic system/application requirements per terabyte of zpool
is not unreasonable.
That seems quite reasonable to me. Our existing equipment has far more
than
On 10/24/2013 03:48 PM, Karanbir Singh wrote:
On 10/23/2013 10:30 AM, Morgan Cox wrote:
If you want SSD + MDRAID you need to use a 3.8+ kernel to have TRIM.
The speed difference between the stock 2.6.32 - 3.10 kernel with SSD +
MDRAID is insane.
has someone quantified what this 'insane'
On 10/24/2013 02:47 PM, SilverTip257 wrote:
You didn't mention XFS.
Just curious if you considered it or not.
Most definitely. There are a few features that I'm looking for:
1) MOST IMPORTANT: STABLE!
2) The ability to make the partition bigger by adding drives with very
minimal/no
Hi all,
I'm doing a very informal and unscientific poll: which kernel do you
use on your CentOS machines?
You just got the snip
We're all stock, all the way. Figure 30 servers configured like this,
including dev/test and embedded servers. We'll soon have a true
Disaster Recovery setup
On 10/24/2013 05:29 PM, Warren Young wrote:
On 10/24/2013 17:12, Lists wrote:
2) The ability to make the partition bigger by adding drives with very
minimal/no downtime.
Be careful: you may have been reading some ZFS hype that turns out not
as rosy in realiIdeally, ZFS would work like
On 10/14/2013 02:31 PM, Gregory P. Ennis wrote:
Everyone,
I am working on a Centos 5.9 system. I have an need to be able to
activate a piece of software from /etc/smrsh that is activated when
sendmail delivers the e-mail to this piece of software. I would like
this piece of software to
So I found an excellent port knocking tutorial using ONLY iptables rules
that looks to be among the best I've ever seen. (warning: techno music,
tough to read screen, you don't need to type it in because I post a link
to script below)
http://www.youtube.com/watch?v=0zFQocf7C_0
It works
On 10/10/2013 03:12 PM, David C. Miller wrote:
SSH by default will use a key pair if found but then drops back to
login password. It will also fall back to password if the keypair has
a passphrase and you just hit retrun without type it in. SSH won't
allow you to connect because the
On 09/19/2013 08:26 PM, Ashley M. Kirchner wrote:
It works for what it does. And I'm completely prepared to freeze it as far
as software goes. I was just curious what may have happened after that
particular version of the kernel, and whether there's something else I can
do, or call it done,
We've been using rsync since forever to back up all our servers and it's
worked without a problem. But in a recent security review, we noted that
our specific rsync backup host is using root keys to access the server,
meaning that if the keys on the backup server were leaked/compromised in
any
On 09/23/2013 01:02 PM, m.r...@5-cent.us wrote:
It does have to
run as root, though, on both, to preserve ownership of home and project
directories, etc.
Depending on how you interpret this statement, my documented process may
present a (mild) improvement.
It has the backup account on the
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