Re: [CentOS] 2 Ethernet cabling question

2010-12-28 Thread Morten Torstensen
On 28.12.2010 15:20, Bowie Bailey wrote:
 The colors are not important aside from standardization.  If you need to
 fix one end of the cable, you have to make sure it's the same as the
 other end.  If you use the standard color scheme, that is not a problem.

Not sure if that is true. I've always been told that the particular 
pin-layout is to reduce crosstalk.

Ref. http://en.wikipedia.org/wiki/568A#Wiring

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Re: [CentOS] 2 Ethernet cabling question

2010-12-25 Thread Morten Torstensen
On 25.12.2010 20:29, Ryan Wagoner wrote:
 I commonly see jacks wired to T568B standard. I've seen some CAT6
 jacks with only the colors shown for T568B. The coloring for T568A is
 backwards compatible with 1 or 2 line phone connectors.

The B is the most common, and that is the one I use.

As for the two ports on one cable, you could do that with cat7 cable, as 
each strand is seperately shielded. For up to 100Mb Ethernet only. As 
someone else said, GigE use all eight strands in the cable. Kind of moot 
point now, who would cable for 100Mb only?

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Re: [CentOS] Superblock Problem

2010-07-02 Thread Morten Torstensen
On 01.07.2010 23:32, m.r...@5-cent.us wrote:
 mount: error mounting /dev/root on /sysroot as ext3: invalid argument
 setuproot: moving /root failed: No such file or directory
 setuproot: error mounting /proc: No such file or directory
 setuproot: error mounting /sys: No such file or directory
 switchroot: mount failed: no such file or directory
 Kernel panic - not syncing: Attempted to kill init!
 Second, I find it odd, since the kernel I have with 5.5 is
 2.6.18-194.3.1.el5 (well, the initial install gave me 2.6.18-194.el5, but
 this was the first upgrade).

I see the same on a CentOS 5.5 system here, but I only see it with the 
2.6.18-194.3.1.el5 kernel. The older -164 kernels work fine.

The system was updated to 5.5 from 5.4. LVM, filesystems and grub should 
be ok, as -164 boots ok. Only -194 has the problem.

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Re: [CentOS] gcc? (w/ a bit of vi vs. emacs)

2010-05-04 Thread Morten Torstensen
Looks like brief is still available, as a rewrite for Windows as a
console app. Can be run in linux using winconsole instead of wine.

http://www.briefeditor.com/index.htm


OTOH, I prefer ultraedit for linux (and windows) these days.

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Re: [CentOS] Resizing a PV that belongs within a Volume Group?

2010-02-19 Thread Morten Torstensen
Or just do it simple... take the extra free space on the disk, create
a new partition there and add that as a new PV to the VG.


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Re: [CentOS] Is ext4 safe for a production server?

2009-12-10 Thread Morten Torstensen
On 05.12.2009 18:15, Miguel Medalha wrote:
 And, as of CentOS 5.4, xfs is now enabled in the kernel, so
 no need for any external kernel module. But yes, this is available for
 x86_64 only

 ... a decision that many people have trouble at understanding!

XFS is not stable on 32-bit systems. You should not use it there. You 
need a 64-bit kernel.

Default for servers should be 64-bit now anyway. Not many reasons left 
for a 32-bit system, and more and more 3. party applications have less 
and less support for 32-bit platforms in general.

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Re: [CentOS] Is ext4 safe for a production server?

2009-12-10 Thread Morten Torstensen
On 05.12.2009 22:04, John R Pierce wrote:
 that same OS/2 JFS was backported to AIX as JFS2, I believe.

When JFS was implemented on OS/2 it was based on JFS on AIX. After that, 
JFS for Linux and JFS2 was based on the same code. Not sure I would say 
backported, but there you go

There are many differences between JFS and JFS2 on AIX and the latter is 
better in many ways... more tuning and support for shrinking.

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Re: [CentOS] Is ext4 safe for a production server?

2009-12-10 Thread Morten Torstensen
On 08.12.2009 13:34, Chan Chung Hang Christopher wrote:
 Speaking for me (on Linux systems) on top of LVM on top of md. On IRIX
 as it was intended.

 That is a disaster combination for XFS even now. You mentioned some
 pretty hefty hardware in your other post...

If XFS doesn't play well with LVM, how can it even be an option? I 
couldn't live without LVM...

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[CentOS] Missing yum-priorities in 5.4?

2009-10-22 Thread Morten Torstensen
I am looking for yum-priorities or any info on any changes here for
CentOS 5.4. There is also a forum post for this here:
https://www.centos.org/modules/newbb/viewtopic.php?topic_id=22798forum=37

Is this missing on purpose? Function merged with another yum package?
Or is it just missing as an oversight?

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Re: [CentOS] Missing yum-priorities in 5.4?

2009-10-22 Thread Morten Torstensen
An upgrade should do fine, I think... the yum versions in 5.3 and 5.4
looks to be the same, so nothing would be uninstalled afaik.

Looks to me that you will only see this when you do a fresh install of 5.4

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Re: [CentOS] what else is missing in 5.4?

2009-10-22 Thread Morten Torstensen
5.3/updates?

On Thu, Oct 22, 2009 at 2:29 PM, Alan McKay alan.mc...@gmail.com wrote:
 [r...@alan centos]# du -sh 5.*
 19G     5.3
 14G     5.4


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Re: [CentOS] New Centos 5.3 gnome backgroup

2009-04-08 Thread Morten Torstensen
Michael Simpson wrote:
 My fiance (who is the artistic one of the family) thinks the new
 graphics are beautiful and i agree with her.

Me too! I checked the artwork when it was announced and I liked it 
already then. Great work and thanks to all involved!

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Re: [CentOS] Getting ready for CentOS 5.4

2009-03-27 Thread Morten Torstensen
Les Mikesell wrote:
 The ones that require the work that the CentOS team does to 
 rebuild/rebrand/repackage before redistribution is permitted.  This was 

As a corporation Red Hat HAD to do that, even if IANAL. CentOS as a 
model works just fine. Sure, sometimes there can be a lack of manpower 
for something. After all, it is a volunteer project that people run in 
their spare time!

Of course, the geek in me waits for the next release. It is always 
waiting for the next release and the next new toy. If I really NEEDED 
the next release, I would use RHEL.

Come on folks, get a perspective of what we are doing here.

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Re: [CentOS] Memory vs. Display Card

2009-03-09 Thread Morten Torstensen
On 09.03.2009 11:09, Rick wrote:
 Well, yeah, of course. But even if I got that wrong, the 4GB alone did not
 work in the same slots the 2GB sticks were in.

So, either the memory sticks are bad (one or two of them), or the memory 
have bad timing in some way making them not compatible with the mobo.

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Re: [CentOS] Mail delivery failing with 450

2009-03-07 Thread Morten Torstensen
Kai Schaetzl wrote:

 - as the MX is the same as your domain name you do not need an MX

It is good to always have an MX.

 - having four ns records all point to the same IP is just, uhm, pointless

Can make it easier to separate workloads and move them to different 
servers later.

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Re: [CentOS] compile driver before X starts

2009-03-06 Thread Morten Torstensen
Ed Donahue wrote:
 vi /etc/init.d
 
 cahnge the number 5 to 3
 
 reboot
 
 fix driver
 
 change the 3 to 5
 
 reboot

or

# telinit 3
# compile whatever
# telinit 5

No reboot needed.

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Re: [CentOS] squid stops working several times a day

2009-02-04 Thread Morten Torstensen
Alexander Farber wrote:
 Sadly, CentOS squid packages are quite old.
 Squid recent releases are: 2.7.STABLE5 and 3.0.STABLE12...
 
 this explains, why OpenBSD+Squid worked well for us
 at the same server - I guess OpenBSD's Squid package
 is better maintained.

Except you cannot really say, just based on the version. Since CentOS is 
an enterprise distro there will be backported patches that is not 
indicated in the version of the package itself.

Backported patches will typically only relate to security and stability 
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Re: [CentOS] Port Forwarding

2009-02-02 Thread Morten Torstensen
John wrote:
 I am an open source person but when it comes to something like that I hate
 to say it but Exchange has it covered. What's others opinions? How would you
 do it? I'm currious to know how you would do this in an environment that has
 many compliance problems. Mainly issues of privacy rights not being
 violated.

For a commercial solution, Lotus Domino might be even better. It is 
cross platform (runs on linux), supports all those same standards for 
various business standards and audit policies, you get a good 
web-client, pop and imap in addition to the Notes client (on Windows and 
Linux only).

Also, it is cheaper than Exchange.

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Re: [CentOS] OT RHEL

2009-01-31 Thread Morten Torstensen
Per Qvindesland wrote:
\ In the company we are working for we are looking at buying a p520 system
 with HACMP, that it why I am looking for a ppc version.

RHEL 4 and 5 both works great on the IBM power systems. Ditto for 
PowerHA (nee HACMP) version 5.4 for both AIX and Linux.

With the p520, I would seriously consider using AIX too. Many Linux 
tools are available there and depending on your apps you might get 
better scalability and stability.

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Re: [CentOS] difference in x86 64 bit centos between 4.x and 5.xversions

2009-01-30 Thread Morten Torstensen
RobertH wrote:
 is there a reason to stay with the older version other than for specific
 deprecated hardware issues or something else?

No, IMO. If you install a new system then install CentOS 5. Version 5 is 
so old by now that all major applications should be supported there. The 
usual YMMV apply.

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Re: [CentOS] Bezerk they will go!

2009-01-27 Thread Morten Torstensen
drew einhorn wrote:
 Note the minimalist .sig
 Probably should fatten it up

You already did by adding a copy of your email as HTML ... ;)

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Re: [CentOS] Old Small Box

2009-01-27 Thread Morten Torstensen
William L. Maltby wrote:
 Oh boy! You've heard rumors that the BIOS manufacturers are going to
 begin supporting file-system-specific layouts? I find that hard to
 swallow.

Well, in theory we don't need BIOS support. The BIOS will check that the 
first sector of the device is signed with 55AAh and just jump into the 
code in the first sector. So if LVM leaves the first sector and track 
(so grub can hide there) alone, it should work just fine.

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Re: [CentOS] More than 2TB RAID...

2009-01-27 Thread Morten Torstensen
John Doe wrote:
 I just received a new server (HP DL180G5) with 12x 1TB HDs and I bumped into 
 fdisks 2TB limits...

I would create two raid logical volumes, one for centos (say, 20GB to 
100GB) and one with the rest of the space. Install centos and normal MBR 
on /dev/sda and then use lvm on the /dev/sdb directly with no partition 
table needed.

I would also strongly consider having two disks mirrored for the system 
in one lvm vg and the rest in another, but with 1TB disks it is kind of 
wasted space. Tho with 12 disks you can have 2 disks for RAID1, then 
8+P+1 in RAID5.

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Re: [CentOS] More than 2TB RAID...

2009-01-27 Thread Morten Torstensen
John Doe wrote:
 The best solution would be to be able somehow to run the avanced RAID 
 utility...
 For that, I need a running OS where I could install it.

They don't have a bootable CD image with the tools? I am only familiar 
with the IBM ServeRAID adapters where you have such a tool.

Another option is of course to create a number of 2TB partitions and 
create a VG with all of them as PVs. Of course, you would need 6 
partitions for this, but once you have them addded to a VG it is pretty 
seamless.

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Re: [CentOS] Old Small Box

2009-01-26 Thread Morten Torstensen
Ross Walker wrote:
 Well the only reason /boot isn't possible in LVM is because grub can't
 of yet handle reading LVM volumes. As soon as it can though, there will
 be no need for a separate /boot.

Then we just need BIOS support to boot from LVM, and we can create the 
PV on /dev/sda and never care about the old partitions anymore. 
Everything should be in LVM for ease of management.

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Re: [CentOS] Antivirus for CentOS? (yuck!)

2009-01-22 Thread Morten Torstensen
Rainer Traut wrote:
 Am 22.01.2009 02:19, schrieb Amos Shapira:
 
 2. Alternatively - what linux anti-virus (oh, the shame of typing this
 word combination :() do you use which doesn't affect our systems
 performance too much.
 
 http://www.f-prot.com/products/corporate_users/unix/
 has some Linux AV products.

And just for completeness, Symantec has AV for Linux too... it is better 
there than on the Windows platform, but that doesn't say much. The 
advantage of Symantec is that it is a well-known brand, so in some cases 
it can be a easy option to push through red-tape bureaucrats.

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Re: [CentOS] CENTOS 4.7 or 5.2 32 bits O.S. for ORACLE DB server??

2009-01-19 Thread Morten Torstensen
Adam Tauno Williams wrote:
 Not true.  The comparison of PAE to EMS/XMS is completely bogus, the
 technologies aren't alike at all.  PAE does *NOT* involve any bank
 switching; a system using PAE can address that 16 GB all at once.
 Comparing PAE to EMS/XMS has the same level of validity as comparing
 a .NET or Java virtual machine to a shell script interpreter.

You need a memory window in the 32bit address area to map 4GB memory to 
the process. It is all about the page tables and remapping, that is 
true, but you can not just like that address the 16GB (or up to 64GB) 
memory all at once.

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Re: [CentOS] CENTOS 4.7 or 5.2 32 bits O.S. for ORACLE DB server??

2009-01-19 Thread Morten Torstensen
Warren Young wrote:
 All this aside: you aren't seriously trying to talk this guy into using 
 PAE mode, are you?  Are you not, in fact, just being pedantic, yet agree 
 with me on the most important point, which is that he should be using a 
 64-bit OS and application here?

I hope he is not. Based on real world experience with running Oracle RAC 
on RHEL with 16 CPUs and 16GB memory on a NUMA machine, I would 
discourage anyone running PAE on systems with much more than 8GB.

Basically, for any RDBMS server, I would go 64-bit even if your machine 
only had 4GB memory (or 2GB)... almost for sure your database will need 
more memory sooner rather than later, and 8-16GB memory on a RDBMS isn't 
that much anymore.

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Re: [CentOS] Checking fan state

2009-01-06 Thread Morten Torstensen
John R Pierce wrote:
 risk?whats risky about the hardware managing the fans without CPU 
 software intervention? If anything thats LESS risky then assuming 
 the OS is properly configured to recognize the system specific fan 
 hardware and will properly react to the particular boards sensor 
 configurations.

That was exactly my thought too... a fully automated hardware 
fan/temperature management systems is the way to go.

It would be nice to have a standard way to get readings tho even for 
desktops/laptops, for your peace of mind :) lm_sensors is often useless, 
as it either doesn't detect anything or the readings it gets is just 
nonsense. Updating lm_sensors is not high on the priority list for Red Hat.

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Re: [CentOS] flash fails to work on Los Angeles Times website - fix

2008-12-21 Thread Morten Torstensen
Russell Miller wrote:
 That's not a CentOS bug.  That's a bug with your local configuration.
 I don't understand what you want CentOS people to do here.  Is this
 hosts entry actually added by a package?  If so, that's the real bug
 here.

I don't think the OP wanted to report it as a bug, it was just something 
he wanted to share with others.

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Re: [CentOS] Adding RAM

2008-12-08 Thread Morten Torstensen
John R Pierce wrote:
 thats not at all an accurate description (other than the 64GB part)

It was a simplified description of how PAE works. The point was that PAE 
work at the page table level and just remaps memory pages to fit within 
the virtual 32-bit/4GB address space for a 32-bit process. There are 
still constraints in PAE on how much memory one single process can use 
and adding memory to a machine where you use PAE does not automagically 
solve all your memory bottlenecks.

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Re: [CentOS] Adding RAM

2008-12-07 Thread Morten Torstensen
Kevin Krieser wrote:

 At least with regard to the upstream provider, on X86 the desktop  
 version has a limit of 4GB of RAM, regardless of how much more memory  
 you have.  And they removed the hugemem version, so instead of up to  
 64GB of RAM on 32 bit, you can only get to 16GB for server versions.

With PAE you can access up to 64GB memory. It works much the same way as 
XMS memory in DOS, where high mem is mapped to a low mem window. It is 
just addresses that are mapped, there is no physical copying of memory 
that you had with EMS memory.

Generally, PAE would not make much sense on 16GB memory machines, as 
you still need the space in the 4GB range to address it. Personally I 
would use PAE on machines with up to 8-12GB memory (assuming x86_64 
wasn't an option). With more than 16GB I would recommend against it, as 
you get a lot of remapping and/or limited space in the 4GB range.

YMMV depending on specific workload of course.

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Re: [CentOS] Stop the FUD Xen is not deprecated

2008-11-28 Thread Morten Torstensen

Les Mikesell wrote:
Well, but why do you assume people run Windows where you run your 
browser? You need a Windows license to run VIC, so the price of 
installing ESXi/VIC is around $100 and up.



To someone who doesn't already have a windows license?


I wouldn't have a spare one, and even if you do have one you still paid 
for it at some point.


Now, if only IBM could implement the Power hardware Hypervisor to the 
Intel/AMD world...


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Re: [CentOS] Cluster Heart Beat Using Cross Over Cable

2008-11-06 Thread Morten Torstensen

lingu wrote:

 Since it is a very critical and busy server may be due to heavy
network load  some hear beat signal is getting missed  resulting in
shifting of service from one node to another.


For automated takeover systems, especially critical ones (tho you can 
argue that any system setup with automatic takeover is critical by 
definition), you should have multiple heartbeat paths. Ethernet, serial 
cable, on shared disk, fibre or whatnot.


Having false takeovers due to missed heartbeat on one set of ethernet 
cards could also likely be missed on another set of cards, even with a 
crossover cable.


Maybe you should investigate alternate paths?

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Re: [CentOS] SATA errors on CentOS 5.2

2008-11-04 Thread Morten Torstensen

MHR wrote:


enhanced, the other is set to IDE, but can be set to RAID or AHCI.


I've used CentOS5 with many different mobos and SATA. I always configure 
SATA to AHCI if the mobo/bios allows it. I have not seen any problems 
with AHCI.


A couple machines with both PATA and SATA has brought some issues with 
boot order, but nothing that could not be solved by specifying boot 
order in the bios.


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Re: [CentOS] new list proposal

2008-10-16 Thread Morten Torstensen

Kenneth Price wrote:

I favor one-stop shopping.


I agree with Jeff.  While I understand this general list can become a bit overwhelming for the CentOS Staff, we all must remember that this is a GENERAL list.  


I think the general CentOS list should be an open and embracing 
community. A centos-tech list sounds more like the name of the 
developer or power user list than a semi-off-topic technology 
discussion group. That was my first thought when seeing the new name.


...and fwiw I would put the new list into the same label/folder too, so 
I don't really care :)


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[CentOS] CentOS 5 on POWER

2008-06-18 Thread Morten Torstensen

Any news on this? Will we see a POWER version of CentOS 5?

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Re: [CentOS] Installing Postfix/Dovecot

2008-03-28 Thread Morten Torstensen

Giulio Troccoli wrote:
I have tried both mail and Thunderbird. mail of course doesn't work 
because it read from /var/spool/mail while postfix puts the email in 
Maildir. However I would have thought that I could download the emails 
with Thunderbird (on my laptop).


I have a similar setup, but I use mbox instead of Maildir. I keep my 
inbox in /var/spool/mail and have my folders in ~/Mail. I can use 
Thunderbird (or any client) through dovecot and mail (or mutt etc) 
locally. Squirrelmail is also happy with this setup.


//Morten
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Re: [CentOS] Re: PHP 5.2.5 when ?

2008-01-17 Thread Morten Torstensen

Michael A. Peters wrote:
PHP is a module that adds functionality to Apache. The only parts of the 


PHP is the programming language that drives a large chunk of web 
applications out there. It is not just an apache module.


Back to the point though, PHP is not a major component of RHEL/CentOS. 
It the last part of a LAMP that gets installed, LAM does not need php, 
php needs LAM (well, you could use Windows, IIS, Oracle ... so I guess 
technically not ... but anyway ...)


The point is that replacing PHP and NOT replacing all the other pieces 
of glue (apache php modules, mysql php modules ...) breaks support and 
introduces many unknowns into the system. Many websites would not work 
if you ran it on just LAM, as the code is written in PHP and PHP needs 
to interact with the other components. In my book PHP is a major part of 
a web server.


PHP is a major component of LAMP and replacing it just because there is 
a new version of PHP out with some new features and maybe some bugfixes 
you don't need is NOT a good enough reason to go through all that 
hassle. YMMV. The upstream provider will backport fixes that are 
important enough to backport. With an enterprise distro of Linux, you 
make the apps work with what is in the base distro, NOT the other way 
around.


You can of course do whatever you want with the computers you control, 
but I really disagree that PHP is a minor component and that building 
your own is easy and with no consequences to talk about.


//Morten

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Re: [CentOS] Re: PHP 5.2.5 when ?

2008-01-15 Thread Morten Torstensen

Steven Vishoot wrote:

I can't understand why people choose an enterprise
distro for it's longevity,
and then proceed to try and break it. It is almost
like buying a brand new car
and then immediately replacing the engine.

Does Having your cake and eating come to mind?


No, because in this case your cake disappears in thin air as soon as you 
try to eat it. Replacing major components in CentOS really goes against 
the entire idea of an enterprise linux distro. Do it only if you really 
really have to and if you really understand every implication of it.


You make your apps work on CentOS/RHEL, you don't make CentOS/RHEL work 
with your apps. This is how the enterprise work. The application vendors 
 of enterprise grade apps test and develop to the enterprise linux distros.


I am afraid the analogy police will have to come and arrest you... :)

//Morten
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Re: [CentOS] Re: are RPMForge and EPEL compatible?

2007-12-06 Thread Morten Torstensen

[snip away bible quotes]

This is getting way off topic, please consider what you post.

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Re: [CentOS] [Fwd: dovecot errors after upgrade to 5.1]

2007-12-03 Thread Morten Torstensen

Gregory P. Ennis wrote:

Everyone,

Looks like my Centos 5.0 mail server upgraded automatically last night
to 5.1.  It appears to have worked normally until about 16:00 CST when
dovecot began to fail.  I have rebooted the system to be able to use the
5.1 kernel, but dovecot still continues to fail.

Has anyone else made this observation?


It is a known problem, please read the release notes. You need to alter 
a parameter in the dovecot config.


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Re: [CentOS] Sort imap e-mail remotely

2007-11-01 Thread Morten Torstensen

Christopher Chan wrote:
solution(maybe I'm search with the wrong keywords). I found fetchmail 
 procmail, but I wasn't able to figure out if they can do it.




http://imapfilter.hellug.gr/



But then he needs to have imapfilter running. For automated sorting of 
email I use procmail. Check with your ISP if they have set up delivery 
to use procmail. Then you make a ~/.procmailrc with contents like this:



LOGFILE=$HOME/procmail.log
VERBOSE=on

:0fw
| /usr/bin/spamc

:0D
* X-Spam-Flag:.*YES
Mail/Junk

:0D
* ^Subject:.*CentOS-announce
Mail/CentOS

:0D
* ^Subject:.*\[CentOS\]
Mail/CentOS
-


//Morten


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Re: [CentOS] Centos 5 on Large Disks [SOLVED]

2007-10-24 Thread Morten Torstensen

Anup Shukla wrote:
Still, given the suggestion, i will surely try to reduce the number of 
slices.


I would make one system LUN at say 20GB and one data LUN with the rest 
of the RADI5 space.


On the system LUN I would make a /boot filesystem and a LVM partition 
with at least a / filesystem and swap. Usually I make /, /usr, /opt, 
/home, /var and /tmp but it varies a bit depending on what kind of 
machine it is.


The data LUN I would use as a PV directly for LVM and not bother with 
partitions at all.


//Morten

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Re: [CentOS] Centos 5 on Large Disks

2007-10-24 Thread Morten Torstensen

Anup Shukla wrote:

Format and run the dd command again.
The speed is 130MB/s now.


It can vary a quite a bit depending on where you hit the disk. Remember, 
what you are testing is just how fast dd can read from /dev/zero and 
write to the file in a filesystem with 1k blocks. How that will map to 
real performance is another matter.



Its a bit confusing.
Does LVM slow down things? Or i did something that is not really of any 
relevance to check IO speed.


LVM adds very little overhead. The file and placement on disk can have 
more to do with raw I/O bandwidth than anything else in this particular 
scenario.



I used mkfs.ext3 -m0 -E stride=96 -O dir_index /dev/sdb1 ...
I have a RAID5 volume consisting of 6 disk with stripe size = 64k
I hope the stride=96 is optimal.


Depends what you want... With 4k blocks in ext3 (default) a stride of 16 
(16 times 4 is 64) would read one stripe from a disk. With 6 disk 16 
times 6 is 96, so for every I/O you will hit each disk once and read one 
stripe. Ditto for writes. In general that is a good start.



Should i stick with LVM, or go back to the older way?


I would never really consider not using LVM. The flexibility it adds for 
disk management is essential for managing your disks.


//Morten

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Re: [CentOS] Centos 5 on Large Disks.

2007-10-23 Thread Morten Torstensen

Anup Shukla wrote:

So finally, i am putting a 300G SATA to act as the system drive.
Then use the other 750G's to be the big RAID 5 Volume (XFS)


If you use a hardware RAID adapter, you can make two LUNs from the 
disks. So make one big RAID5 array but two logical drives. I would still 
use LVM anyway for management down the road.


Not all hardware RAID adapters might support this, but if yours does you 
will get data protection for free on your system drive.


//Morten



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Re: [CentOS] Install CentOS

2007-10-13 Thread Morten Torstensen

spasti wrote:

 512MB memory ,80G IDE HD. And i also run a WinXP on my computer,it
prsents very good.


The fact that Windows works ok is no indication that the hardware is 
100% in working order. It is just an indication that the hardware works 
in Windows with the particular workload you use there.


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Re: [CentOS] apt-cacher for CentOS

2007-10-11 Thread Morten Torstensen

James A. Peltier wrote:
If there isn't an equivalent, would someone please point me in the 
direction of how I might accomplish this with CentOS?


The Upstream have a Satellite program that provides local copies for 
their distribution/management network. Don't know if that is something 
that could be re-packaged?


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Re: [CentOS] Can't get XFS enabled on Centos 5.0

2007-10-11 Thread Morten Torstensen

Dan Carl wrote:

I also installed these packages as described in a post I found
yum install --enablerepo=centosplus xfsprogs xfsprogs-devel

lsmod shows nothing about XFS


Well, have you tried to format and mount an xfs filesystem? The module 
would not be loaded until needed I think. Maybe it is that simple?


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[CentOS] Logwatch for postfix

2007-10-02 Thread Morten Torstensen
On CentOS5 with the latest updates applied, the logwatch filter for 
postfix returns way too many lines from the log. I get an unmatched 
entries message and all messages that have gone through the system is 
listed.


Here is an example:

8F930A8092: to=[EMAIL PROTECTED], orig_to=[EMAIL PROTECTED], 
relay=local, delay=0.19, delays=0.06/0.01/0/0.12, dsn=2.0.0, status=sent 
(delivered to command: /usr/bin/procmail)


I have tried to look at the logwatch config and some google hits on 
similar problems but on debian. The hints there does not match what is 
relevant for CentOS.


Anyone seen this problem on CentOS or is it some specific problem to my 
configuration? I use fetchmail/postfix/dovecot/procmail locally on the 
server to consolidate mail. Could be that it tries to filter on some 
hostname/domain name?


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Re: [CentOS] Logwatch for postfix

2007-10-02 Thread Morten Torstensen

Stephen Harris wrote:

Yeah.  My fix was to copy the services/postfix file in to
  /etc/logwatch/scripts/services/postfix
and edit the file.


Thanks, your patch solved the problem for me. Tho all the config files 
are under /usr/share/logwatch on my system. There are some stubs in 
/etc/logwatch too, but I could not see any config entries that pointed 
logwatch there.


Anyway, patching /usr/share/logwatch/services/postfix with your patch 
fixed it.


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Re: [CentOS] Logwatch for postfix

2007-10-02 Thread Morten Torstensen

Les Bell wrote:

You can suppress messages by adding regexp patterns to
/etc/logwatch/conf/ignore.conf. For example:


Thanks, that can be a handy way too. But I preferred to fix the filter 
and will keep ignore.conf as a last stopgap measure.


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Re: [CentOS] Logwatch for postfix

2007-10-02 Thread Morten Torstensen

Morten Torstensen wrote:
Anyway, patching /usr/share/logwatch/services/postfix with your patch 
fixed it.


/usr/share/logwatch/scripts/services/postfix of course...

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Re: [CentOS] Re: Logwatch for postfix

2007-10-02 Thread Morten Torstensen

Scott Silva wrote:
Are you using the latest from www.logwatch.org (7.3.6) or the old 
version bundled with CentOS?


I am using the base yum repos. No time to remember to chase down a 
myriad of different program packages from different websites. I am sure 
this problem is solved in newer logwatch versions, as it is pretty 
obvious, but I want to keep to the base repos as much as possible.


But thanks for the tip! I got a patch for the postfix script for 
logwatch that works great for me.


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Re: [CentOS] mysql and windows

2007-09-30 Thread Morten Torstensen

Peter Arremann wrote:
If you're looking to do more interesting things like tablespaces (stuff that 
you can find in the large commercial engines) you need to go with pg. many 
people get turned off pg when they can't figure out authentication within the 
first 5 minutes but it is well worth it to me.


Apache Derby (nee Cloudscape) is nice too, and for scalability up to and 
exceeding Oracle, DB2 Express-C is nice too. It is free as in beer. The 
free version is limited in memory and cpus etc but is fully featured... 
but if you need it you  can scale out on many kinds of hardware.


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Re: [CentOS] need help on second Ethernet port (eth1) point to point connect

2007-09-10 Thread Morten Torstensen

Robert Moskowitz wrote:
A large number of NICs are autosensing. They do not need a crossover 


And rx/tx autosensing is part of the gigabit ethernet standard afaik. 
Modern gigabit cards should be able to autosense speed, duplex and 
direction.


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Re: [CentOS] DVD Drive Recommendations

2007-07-26 Thread Morten Torstensen

John R Pierce wrote:
I've used an Optiarc to burn all that in Linux, some with cdrecord 
some with NeroLinux. Optiarc is a joint NEC/Sony company. DVD 
drives/burners are commodity these days with standard interfaces.


not many support dvd-ram, however, which was buried in his list.


But the Optiarchs that supports Lightscribe also supports DVD-RAM. So 
the NEC AD-5170 does not support DVD-RAM, but the NEC AD-7173 does.


My point was more that you just find a DVD-burner with the specs you 
need and it should work. I have used Plextor, Sony, NEC and Optiarc over 
the last year or so and I have not detected any functional differences 
in use in linux, apart from the different feature sets and speeds.


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Re: [CentOS] DVD Drive Recommendations

2007-07-26 Thread Morten Torstensen

Camron W. Fox wrote:
DVD hyper multidrive, capable of reading and writing DVD-R, DVD-RW, 
DVD+R, DVD+RW, DVD-RAM, DVD-R for DL, and DVD+R DL.


I've used an Optiarc to burn all that in Linux, some with cdrecord some 
with NeroLinux. Optiarc is a joint NEC/Sony company. DVD drives/burners 
are commodity these days with standard interfaces.


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