Re: [CentOS] centos sparc distro?

[Jose M Mejia, Ayto de l'Alcora]

John R Pierce escribió:

tblader wrote:

Hello All.
I've a couple Sun SPARC Ultra 60 machines I'd like to install
Linux on.  Is the Centos 4.2 Beta distro* still in development?
Looks like 2005 was the last beta release.


I'd put Solaris 10 on those.
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Solaris 10 is a good choice, but if you want a RH linux flavour for 
Sparc try the Aurora Linux


http://auroralinux.org

The only problem is the project is not up to date.

greetings

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[CentOS] kaffeine installation

[[EMAIL PROTECTED]]

Anyone got kaffeine installed.  When I do a

#yum install kaffeine

I get a transaction check error with kde-libs.

Is this a known issue and is their a workaround?

regards,
secrookie
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Re: [CentOS] How to move my MBR

[Theo Band [GreenPeak]]

Scott Moseman wrote:

I removed an ATA drive (/home) for a new SATA and my system would not
boot.  I'm guessing that it put the MBR on that drive instead of the
drive that holds the / partition.  What's the best way confirm where
the MBR resides and, after I verify that's my problem, how I can move
(or make a copy) onto a different drive?
  
The BIOS determines which disk (the first) will be chosen to boot from. 
Sometimes hitting F12 or some other key gives you a menu to choose from. 
I have seen occasions were the bios was confused on what the "default" 
first disk was. Removing the last disk, booting, adding the disk would 
than help.


To make a plain bootsector copy:
dd if=/dev/sda of=/dev/sdb bs=512 count=1

But that the fist step of the boot loader. Next it will try to load the 
grub menu etc. from some disk (need not be the same disk, but mostly 
this disk contains a small (100MB) partition that holds these files and 
the kernel and ramdisk images. After boot this partition is normally 
mounted under /boot (for easy maintenance). So just copying the boot 
sector gives you only a grub prompt and then it stops.


So try boot with a rescues disk (or LiveCD) so that you can study your 
disks.


To install grub after booting from a resuce CD, you can use:

grub
root (hd0,1)   # press tab for command completion
setup (hd0)


With all these examples you need to verify of course which 
disks/partition (sda/sdb etc) you need to choose.
One way to search is to enter grub and use the find command with command 
completion:


Probing devices to guess BIOS drives. This may take a long time.
   GNU GRUB  version 0.95  (640K lower / 3072K upper memory)

[ Minimal BASH-like line editing is supported.  For the first word, TAB
  lists possible command completions.  Anywhere else TAB lists the possible
  completions of a device/filename.]

grub> find (hd
Possible disks are:  hd0 hd1 hd2 hd3

grub> find (hd0,(TAB>
Possible partitions are:
  Partition num: 0,  Filesystem type is ext2fs, partition type 0x83
  Partition num: 1,  Filesystem type unknown, partition type 0xfd

grub> find (hd0,0)/
Possible files are: lost+found vmlinuz-2.6.21-1.3194.fc7 grub 
System.map-2.6.21-1.3194.fc7 config-2.6.21-1
.3194.fc7 initrd-2.6.21-1.3194.fc7.img config-2.6.9-55.0.6.ELsmp 
initrd-2.6.9-55.0.6.ELsmp.img System.map-2
.6.9-55.0.6.ELsmp vmlinuz-2.6.9-55.0.6.ELsmp 
initrd-2.6.9-55.0.6.ELsmp.img_vg_new initrd-2.6.9-55.0.6.ELsmp

.img_noraid

grub> find (hd0,0)/


Theo
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[CentOS] Re:Re:Re:Can't get past the splash screen

[Eon Strife]

Hi,
Thanks, I check those folders, and they are already empty.
Now, I tried to remove the freenx by using yum, and then I removed the files it 
left behind manually in:

/usr/bin/nxserver
/usr/lib/nx
/var/lib/nxserver
/etc/nxserver

along with the nx user and group and reinstall. The problem worsen, no matter 
what user I tried, I always got Session Startup Failed:

===
NX> 700 Session id: cluster.hpc.org-1014-084919CE7F9816540BDEDD5A7928084E
NX> 705 Session display: 1014
NX> 703 Session type: unix-gnome
NX> 701 Proxy cookie: ee398e9cedaf3adbba4dc966d4433dee
NX> 702 Proxy IP: 127.0.0.1
NX> 706 Agent cookie: ee398e9cedaf3adbba4dc966d4433dee
NX> 704 Session cache: unix-gnome
NX> 707 SSL tunneling: 1
NX> 105 /usr/bin/nxserver: line 1077:  8588 Terminated  sleep 
$AGENT_STARTUP_TIMEOUT
NX> 596 Session startup failed.
NX> 1004 Error: NX Agent exited with exit status 1.
NX> 1006 Session status: closed
Can't open 
/var/lib/nxserver/db/running/sessionId{084919CE7F9816540BDEDD5A7928084E}: No 
such file or directory.
mv: cannot stat 
`/var/lib/nxserver/db/running/sessionId{084919CE7F9816540BDEDD5A7928084E}': No 
such file or directory
NX> 280 Exiting on signal: 15
===

I tried alternative solution by using VNC. In order to have access to desktop, 
I modifed the content of the Xstartup file (for the root in /root/.vnc/xstartup 
and 
for the regular user in /home/EonStrife/.vnc/xstartup) to be :
===
#!/bin/sh

# Uncomment the following two lines for normal desktop:
# unset SESSION_MANAGER
# exec /etc/X11/xinit/xinitrc

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#startx &
exec gnome-session &
#twm &
===

The funny thing is that for regular user I can access the desktop, but for the 
root I'm only treated with the terminal. (BTW, the client I used are tightVNC 
and RealVNC)
Thanks.


===Previous Message===

Eon Strife wrote:
> Hi,
> Thanks, it's Gnome, and I'm stuck when I login as root.
> By using Putty, I managed to create a new user, and then I tried to login to 
> desktop(using nomachine) as that user, and yes, it works. The problem now is 
> that I stuck when I login as the root.

>
> NX> 596 Session startup failed.<- 
> The additional line in the sshlog of the root
> NX> 1004 Error: NX Agent exited with exit status 1.
> Can't open 
> /var/lib/nxserver/db/running/sessionId{0C2C8B077AB56ED37F7A5A72FE8FA7BF}: No 
> such file or directory.
> mv: cannot stat 
> `/var/lib/nxserver/db/running/sessionId{0C2C8B077AB56ED37F7A5A72FE8FA7BF}': 
> No such file or directory
> NX> 1006 Session status: closed
> Exited with status 0. User pressed Ok.

As a regular user you shouldn't be able to look into that directory, 
so that's normal. Only root and nx can do that.

Interesting (at least to me) is that you get an error concerning a 
session that I do not believe it should be looking for. It's like 
it's attempting to reattach to a session that doesn't exist and then 
it fails. I could be incorrect, but at this point it's simply a data 
point.

On the client machine (assuming it is linux), have you removed all 
session data from the user's home directory? By default this is 
~/.nx/cache-unix-windowmanagername (for you that is likely gnome) 
and ~/.nx/letter-hostname-screen-somerandomhashIthink/

Don't remove the config directory or else you'll have to set up the 
nx information again. See if that doesn't fix the issue. It may not, 
and I'm sorry if it doesn't, but I am not entirely sure about this 
particular issue.

If the client machine is a windows machine there is a .nx directory, 
but I am not sure where it's kept. C:\documents and 
settings\user\.nx maybe. That is where it resides on my windows 
install at work on XP. I may or may not have changed the directory 
so you might have to look around a bit.


HTH

Alex White
-- 
ethericalzen at gmail.com
Life is a prison, death is a release

Send instant messages to your online friends http://uk.messenger.yahoo.com
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Re: [CentOS] RAID5 or RAID50 for database?

[Guy Boisvert]

Linux wrote:


And stick with md-raid 10 (also known as software raid) because it is
much more intelligently designed than any
closed-source-embedded-raid-controller.


"More intelligently designed" -> Could you please tell us more on this one?



i
Nowadays hardware raid frightens me because of the need to have spare
raid-controllers for every hardware-raid-configuration I have. They
are neither interchangable nor easily recoverable.

md-raid 10 can be established with any number of disks (at least 3 but
better check with google)



Not easily recoverable?  I did recovery many time without a hitch 
(Adaptec, 3Ware, LSI, PERC)!


As for RAID 10 with 3 disks, mmm... go see:

http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks


Lastly, it's kinda strange that your name is "Linux": Maybe you're young 
and your parents decided to honor this great OS!  Well, i may name my 
next children "Cento" !!! ;-)



Hey, have a nice day "Linuxito" !


Guy Boisvert, ing.
IngTegration inc.
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Re: [CentOS] CentOS 5.2 ?

[Paul]

On Thu, 2008-05-22 at 15:42 -0400, Matt Hyclak wrote:
> On Thu, May 22, 2008 at 12:03:23PM -0700, Florin Andrei enlightened us:
> > Anybody knows when CentOS 5.2 will be made available?
> > 
> > http://www.linux.com/feature/135980
> 
> When it's done. For crying out loud, upstream has only released 5.2 less
> than 24 hours ago.
> 
> It will be at least a couple of weeks for the builds to finish and
> preliminary QA to take place. 
> 
> Can we please hold off on these questions until June at the very least?

LOL, it's *almost* funny how quick people start asking when the next
version will come out when after upstream has released a new version.

I'm looking forward to some of the new apps & features, but I can wait
the 2-3 weeks it usually takes.

Paul

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[CentOS] Re: How to move my MBR

[Scott Moseman]

Just in case this makes any difference...

# cat /etc/redhat-release
CentOS release 4.6 (Final)

Thanks,
Scott


On Thu, May 22, 2008 at 11:06 PM, Scott Moseman <[EMAIL PROTECTED]> wrote:
>
> I removed an ATA drive (/home) for a new SATA and my system would
> not boot.  I'm guessing that it put the MBR on that drive instead of the
> drive that holds the / partition.  What's the best way confirm where the
> MBR resides and, after I verify that's my problem, how I can move (or
> make a copy) onto a different drive?
>
> Thanks,
> Scott
>
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[CentOS] How to move my MBR

[Scott Moseman]

I removed an ATA drive (/home) for a new SATA and my system would not
boot.  I'm guessing that it put the MBR on that drive instead of the
drive that holds the / partition.  What's the best way confirm where
the MBR resides and, after I verify that's my problem, how I can move
(or make a copy) onto a different drive?

Thanks,
Scott
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RE: [CentOS] samba question

[John]

 
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of david chong
Sent: Thursday, May 22, 2008 10:19 PM
To: CentOS mailing list
Subject: Re: [CentOS] samba question

> Have you ever tried going through the Samba Howto or the Using Samba 
> book material that comes free with samba in html format?
>
> If you want help, then you need to tell us also what you have 
> done...why should we try to walk you through each and every step?
>

Hi All,

Thanks for all your suggestions.

No, I don't mean to ask you walking me step by step.

Actually I am following the "Samba 3 By Example" and stuck at the very first
example. I copied the whole smb.conf but cannot connect to my box. I can
ping to it and ssh to it though.

I notice in the example running "smbclient -L localhost -U%" will output the
line below:
ADMIN$ IPC IPC Service (Samba 3.0.20)

but from my C5.1, I don't have this line, other lines are the same, can
anyone explain this line, wondering if this is where the problem lies.
--

Can you ping the Samba Server by the Server name? 

"[EMAIL PROTECTED] yourservernamehere"

All your line means, is that is the administrative share
"\\servername\admin$". OK, if you did the example in the from "Samba 3 by
Example", then you will be able to connect via anonimously to the samba
server from the Windows machine. That is providing that you have the correct
file permissions on the Samba Server in question. 

For that you will use the commands "chmod & chown". Full access is needed to
the folder that is shared in samba using that example. When using chown and
chmod be sure to use the "-R Option", to make the changes apply recursively
to the shared folder. 

I honestly know that if your indeed using that example it will work if
followed step by step.

Have a Blast :-D!,
JohnStanley  
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RE: [CentOS] IPTables help

[Joseph L. Casale]

>This CentOS wiki may help:
>
>http://wiki.centos.org/HowTos/Network/IPTables
>
>Akemi


Akemi,
That was helpful (I should have checked the wiki:>).

After reading that and the RH related links, I think I have what I need
but I am unclear about one aspect. What is the correlation between filtering
LAN based connections destined to be masqueraded out and what can even get to
the internal NIC? I see the chains are obviously distinct from each other, and
I assume the tables are as well. So to control what may ingress an interface 
destined
for the server itself, you write a rule for the default table's INPUT chain, to 
control
what may be masqueraded/DNAT'ed, you write a rule for the either the NAT tables
PREROUTING chain or the default table's FORWARD chain, or both?

In looking at examples for setting up NAT, I don't see people typically 
lockdown what
may masqueraded, so I am not seeing how to do this. Buy my inclusion of at 
least one
rule, am I properly prohibiting anything else? Is there any significance to the 
order
in which I setup masquerading and then lockdown what hits the FORWARD chain?

Do you not need to setup default policies for the chains on the nat table?

Thanks!
jlc


**
#!/bin/bash

WAN="eth0"
LAN="eth1"

# Flush all current rules from iptables
iptables -F

# Set default policies for INPUT, FORWARD and OUTPUT chains
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

# Set access for localhost
iptables -A INPUT -i lo -j ACCEPT

# Accept packets belonging to established and related connections
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

# Setup masquerading on WAN interface
iptables -A FORWARD -i $WAN -o $LAN -m state --state ESTABLISHED,RELATED -j 
ACCEPT
iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE

# Allow incoming DNS/DHCP/HTTP/SIP connections from internal clients on LAN
iptables -A FORWARD -i $LAN -m state --state NEW -m udp -p udp --dport 53 -j 
ACCEPT
iptables -A FORWARD -i $LAN -m state --state NEW -m tcp -p tcp --dport 80 -j 
ACCEPT
iptables -A INPUT -i $LAN -m state --state NEW -m udp -p udp --dport 67 -j 
ACCEPT
iptables -A INPUT -i $LAN -m state --state NEW -m udp -p udp --dport 68 -j 
ACCEPT
iptables -A INPUT -i $LAN -m state --state NEW -m udp -p udp --dport 5060 -j 
ACCEPT
iptables -A INPUT -i $LAN -m state --state NEW -m udp -p udp --dport 
1:6 -j ACCEPT

# Allow incoming SIP connections from both of the provider's RTP Servers on WAN
iptables -A INPUT -s xx.xx.xxx.162/32 -i $WAN -m state --state NEW -m udp -p 
udp --dport 5060 -j ACCEPT
iptables -A INPUT -s xx.xx.xxx.163/32 -i $WAN -m state --state NEW -m udp -p 
udp --dport 1:6 -j ACCEPT
iptables -A INPUT -s xx.xx.xxx.162/32 -i $WAN -m state --state NEW -m udp -p 
udp --dport 5060 -j ACCEPT
iptables -A INPUT -s xx.xx.xxx.163/32 -i $WAN -m state --state NEW -m udp -p 
udp --dport 1:6 -j ACCEPT

# Forward smtp connections to mail server from WAN
iptables -A FORWARD -i $WAN -m state --state NEW -m tcp -p tcp --dport 25 -j 
ACCEPT
iptables -t nat -A PREROUTING -i $WAN -p tcp --dport 25 -j DNAT --to 
192.168.0.3:25

# Save settings
service iptables save
**
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Re: [CentOS] samba question

[Christopher Chan]

I notice in the example running "smbclient -L localhost -U%" will
output the line below:
ADMIN$ IPC IPC Service (Samba 3.0.20)

but from my C5.1, I don't have this line, other lines are the same,
can anyone explain this line, wondering if this is where the problem
lies.


Run testparm and tell us what your share definitions are...if any.

cheers,

Christopher
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Re: [CentOS] samba question

[david chong]

> Have you ever tried going through the Samba Howto or the Using Samba book
> material that comes free with samba in html format?
>
> If you want help, then you need to tell us also what you have done...why
> should we try to walk you through each and every step?
>

Hi All,

Thanks for all your suggestions.

No, I don't mean to ask you walking me step by step.

Actually I am following the "Samba 3 By Example" and stuck at the very
first example. I copied the whole smb.conf but cannot connect to my
box. I can ping to it and ssh to it though.

I notice in the example running "smbclient -L localhost -U%" will
output the line below:
ADMIN$ IPC IPC Service (Samba 3.0.20)

but from my C5.1, I don't have this line, other lines are the same,
can anyone explain this line, wondering if this is where the problem
lies.
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Re: [CentOS] RAID5 or RAID50 for database?

[Christopher Chan]

And stick with md-raid 10 (also known as software raid) because it is
much more intelligently designed than any
closed-source-embedded-raid-controller.


This was valid until...quite a few years ago.



Nowadays hardware raid frightens me because of the need to have spare
raid-controllers for every hardware-raid-configuration I have. They
are neither interchangable nor easily recoverable.


You seem to have been living under a rock for the last half decade.



md-raid 10 can be established with any number of disks (at least 3 but
better check with google)


Hmm, I think your advice must be taken with a grain of salt. Have you 
actually tried to do what you suggest? In any case, I will give you the 
benefit of the doubt that you just did a typo.

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Re: [CentOS] RAID5 or RAID50 for database?

[Christopher Chan]

Your way has the advantage of letting you add disks in pairs, but to get 
that you get only single-disk redundancy: if a second disk goes out, 
your array is gone, no matter which disk it is.


Nah, if you lose both disks that belong to the same stripe array, the 
other stripe array is still around.

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Re: [CentOS] RAID5 or RAID50 for database?

[Filipe Brandenburger]

On Thu, May 22, 2008 at 12:01 PM, Warren Young <[EMAIL PROTECTED]> wrote:
> At any rate, RAID-10 shouldn't be *slower*.

I've actually seen equipments where RAID-10 was slower for reading
than RAID-5 with the same number of disks. RAID-10 depends on the
ability of the controller of balancing reads between the two disks
(because as both have the same information, it can choose from which
to read). Most implementations in cheap controllers (cheap as opposed
to hundreds of thousands of dollars SAN controllers) do not implement
this in the smartest possible way.

With RAID-5 there is not such a choice, the information must be read
from the disk that holds it, which means all implementations must do
the right thing, which will end up striping reads across all (but one)
disks.

In any case, I've used RAID-5 with databases and it works pretty well.
The biggest problem with RAID-5 (especially on big volumes) would be
the time to reconstruct if a disk fails. But if you're using good
quality SCSI drives that tend to last long, I would consider using
RAID-5.

As with any other performance-related issue, the answer, as usual,
comes from the benchmarks you do with your own application. Anything
else would be just theoretical and could not even apply to your
particular case.

HTH,
Filipe
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Re: [CentOS] samba question

[Christopher Chan]

david chong wrote:

Hi,

I am running Centos5.1, trying to configure samba now. I am quite new
in this area and hope help from the list.


Have you ever tried going through the Samba Howto or the Using Samba 
book material that comes free with samba in html format?


If you want help, then you need to tell us also what you have done...why 
should we try to walk you through each and every step?

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RE: [CentOS] RAID5 or RAID50 for database?

[Joseph L. Casale]

>And stick with md-raid 10 (also known as software raid) because it is
>much more intelligently designed than any
>closed-source-embedded-raid-controller.

Pretty strong opinion that would be disputed by many don't you think?
I would venture to say that any large system involved in SLA's with 5 9's
etc would have very good equipment all using hardware based controllers.
Not to mention you just invalidated almost every SAN in production which
would be many :)

jlc
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Re: [CentOS] CentOS 5.2 ?

[Florin Andrei]

Matt Hyclak wrote:


For crying out loud, upstream has only released 5.2 less
than 24 hours ago.


I was just curious, I was not "demanding it right now" or anything like 
that.


Sorry if my inquiry seemed inconsiderate.

--
Florin Andrei

http://florin.myip.org/
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Re: [CentOS] RAID5 or RAID50 for database?

[Linux]

On Thu, May 22, 2008 at 7:12 PM, Guy Boisvert <[EMAIL PROTECTED]> wrote:
> You do not need two (2) raid controllers unless you want to have
> redundancy at the controller level.  Adaptec, 3Ware, etc do RAID 50.
> For RAID 50, you need at least 6 disks.
>
> http://en.wikipedia.org/wiki/RAID
>
>
> For database, i'd go with RAID 10.  As pointed out Joseph in a previous
> post, RAID 5 rebuilding would slows the array down.
>
> As for RAID 10, i didn't make extensive benchmarks but here are the
> rough results i got with Adaptec 3405 and four (4) Seagate 15K SAS drives:
>
>
> RAID 5: Read = 170 MiB/s
>Write =  135 MiB/s
>
> RAID 10: Read = 170 MiB/s
> Write = 160 MiB/s

And stick with md-raid 10 (also known as software raid) because it is
much more intelligently designed than any
closed-source-embedded-raid-controller.

Nowadays hardware raid frightens me because of the need to have spare
raid-controllers for every hardware-raid-configuration I have. They
are neither interchangable nor easily recoverable.

md-raid 10 can be established with any number of disks (at least 3 but
better check with google)
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Re: [CentOS] Re:Re:Can't get past the splash screen

[Alex White]

Eon Strife wrote:

Hi,
Thanks, it's Gnome, and I'm stuck when I login as root.
By using Putty, I managed to create a new user, and then I tried to login to 
desktop(using nomachine) as that user, and yes, it works. The problem now is 
that I stuck when I login as the root.




NX> 596 Session startup failed.<- 
The additional line in the sshlog of the root
NX> 1004 Error: NX Agent exited with exit status 1.
Can't open 
/var/lib/nxserver/db/running/sessionId{0C2C8B077AB56ED37F7A5A72FE8FA7BF}: No 
such file or directory.
mv: cannot stat 
`/var/lib/nxserver/db/running/sessionId{0C2C8B077AB56ED37F7A5A72FE8FA7BF}': No 
such file or directory
NX> 1006 Session status: closed
Exited with status 0. User pressed Ok.


As a regular user you shouldn't be able to look into that directory, 
so that's normal. Only root and nx can do that.


Interesting (at least to me) is that you get an error concerning a 
session that I do not believe it should be looking for. It's like 
it's attempting to reattach to a session that doesn't exist and then 
it fails. I could be incorrect, but at this point it's simply a data 
point.


On the client machine (assuming it is linux), have you removed all 
session data from the user's home directory? By default this is 
~/.nx/cache-unix-windowmanagername (for you that is likely gnome) 
and ~/.nx/letter-hostname-screen-somerandomhashIthink/


Don't remove the config directory or else you'll have to set up the 
nx information again. See if that doesn't fix the issue. It may not, 
and I'm sorry if it doesn't, but I am not entirely sure about this 
particular issue.


If the client machine is a windows machine there is a .nx directory, 
but I am not sure where it's kept. C:\documents and 
settings\user\.nx maybe. That is where it resides on my windows 
install at work on XP. I may or may not have changed the directory 
so you might have to look around a bit.



HTH

Alex White
--
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Life is a prison, death is a release
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Re: [CentOS] CentOS 5.2 ?

[Matt Hyclak]

On Thu, May 22, 2008 at 12:03:23PM -0700, Florin Andrei enlightened us:
> Anybody knows when CentOS 5.2 will be made available?
> 
> http://www.linux.com/feature/135980

When it's done. For crying out loud, upstream has only released 5.2 less
than 24 hours ago.

It will be at least a couple of weeks for the builds to finish and
preliminary QA to take place. 

Can we please hold off on these questions until June at the very least?

Matt

-- 
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Department of Mathematics 
Department of Social Work
Ohio University
(740) 593-1263
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Re: [CentOS] CentOS 5.2 ?

[Heiko Adams]

Am Donnerstag, den 22.05.2008, 12:03 -0700 schrieb Florin Andrei:
> Anybody knows when CentOS 5.2 will be made available?
> 
On 5.1 it took nearly 3 weeks so expect at least the same period of time
for 5.2 - otherwise: it's done when it's done :D
-- 
Heiko Adams <[EMAIL PROTECTED]>


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Re: [CentOS] Current Chipset Compatibility

[Ned Slider]

John Paulson wrote:
Can someone make a recommedation as far as best chipset for Centos 5.0 or 5..1 using a Q6600 series CPU with chipsets that have onboard VGA?  
From poking around it looks like the G33 and P35 are not supported or have problems until the newer 2.6.22 kernel (the iso's appear to be earlier than that, think it was .18)?  So I am considering boards with the Intel G965 chipset but not sure if is supported yet?

Can someone make a recommedation as far as best chipset for this scenario? thx
-- John


P35 with ICH9R works OK (the R in ICH9R is the important bit). The RAID 
capable chipsets also support AHCI mode and the native CentOS kernel 
driver for AHCI works very well. *Some* non-R ICH9 based boards also 
have the AHCI mode present in the BIOS but many don't - the chipset does 
support it but many vendors choose not to implement it in their BIOS so 
it's a bit of a lottery. Entry level boards with integrated graphics 
tend to be ICH9, not ICH9R.


I don't have any direct experience with other chipsets so am unable to 
comment on those.


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[CentOS] CentOS 5.2 ?

[Florin Andrei]

Anybody knows when CentOS 5.2 will be made available?

http://www.linux.com/feature/135980

--
Florin Andrei

http://florin.myip.org/
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RE: [CentOS] COBOL

[Michael Peterson]

We use COBOL on Unix.
I have worked with NCR/AT&T Unix and since 1995 have been supporting COBOL
on SCO Unix.
I am in the process of porting to CentOS and RHEL.
We use RM/COBOL.

It is supported by Liant at www.liant.com
We use it for internal and Internet programming.
They also support Web Services using COBOL.


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Michael
Sent: Wednesday, May 21, 2008 1:47 PM
To: centos@centos.org
Subject: [CentOS] COBOL

Just curious, maybe some old timers could help me out. I am working with 
a company that is migrating 20 years of Mainframe Software Development 
to Unix, HPUX. How much harder would it be to go to Linux, Centos Linux?

Also, anyone have any experience with Fujitsu Cobol on Centos? The 
Fujitsu people only support Red Hat, and said I'd be on my own with 
Centos. In other words if it works, then I don't care about Fujitsu 
support.

I know some of you are thinking, did someone say "COBOL"? Nobody uses 
COBOL anymore! If so, let me say "You are wrong". Many large 
corporations are taking their old business logic that was written in 
COBOL decades ago, and moving it to new modern platforms, like Linux. 
Programatically giving these applications a GUI face-lift, while 
maintaining their original business logic. I know because many companies 
pay me to do just that. I have a client that wants to use Centos Linux 
with Fujistu Cobol, and Fujitsu says it's gotta be Red Hat, any help 
will much appreciated.

Thanks,

-- 
Michael Anderson,
J3k Solutions
Sr.Systems Programmer/Analyst
832.515.3868

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[CentOS] Current Chipset Compatibility

[John Paulson]

Can someone make a recommedation as far as best chipset for Centos 5.0 or 5..1 
using a Q6600 series CPU with chipsets that have onboard VGA?  
From poking around it looks like the G33 and P35 are not supported or have 
problems until the newer 2.6.22 kernel (the iso's appear to be earlier than 
that, think it was .18)?  So I am considering boards with the Intel G965 
chipset but not sure if is supported yet?
Can someone make a recommedation as far as best chipset for this scenario? thx
-- John


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Re: [CentOS] Re: Need help with rsync. [solved]

[James B. Byrne]

In-Reply-To: <[EMAIL PROTECTED]>

On: Wed, 21 May 2008 10:22:19 -0700, MHR <[EMAIL PROTECTED]>
wrote:

>> On Wed, May 21, 2008 at 8:37 AM, James B. Byrne <[EMAIL PROTECTED]>
>> wrote:
>>
>> This indeed turned out to be an SELinux policy problem which I have since
>> resolved.
>
> Whoa, whoa, whoa, nice shooting, Tex!  (Ghostbusters)
>
> Not so fast - please post the solution, too, for posterity (and those
> of us who don't use SELinux but might, someday, in the not too distant
> far future...).
>
> Thanks.
>
> mhr

Dealings with SELinux issues typically do not lend themselves to short
answers.  SELinux is like an onion, each each exception blocks access until
resolved.  Thus each policy change has to be made individually and then the
process retested so that the next impediment evidences itself.

On CentOS-5 your friends are:

# grep avc /var/log/messages
# grep  /var/log/audit/audit.log

and some of the more useful utilities are:

# audit2allow
# audit2why
# chcon
# restorecon
# sealert
# semanage

When I suspect (and that is often the hardest part of the whole exercise,
realizing that SELinux is the problem) that SELinux is involved in a problem I
start by checking the system log file /var/log/messages with grep avc.  If I
see things like this:

# grep avc /var/log/messages

May 16 04:02:33 inet01 kernel: audit(1210924952.785:22973): avc:  denied  {
read } for  pid=22282 comm="prelink" name="setserial" dev=dm-0 ino=3309644
scontext=user_u:system_r:prelink_t:s0
tcontext=system_u:object_r:rsync_data_t:s0 tclass=file

Then I infer that I have a problem with either the SELinux file contexts or
the system policy file.  If the SELinux problem is announced at the desktop
then you may also find it useful to check for this:

# grep setroubleshoot /var/log/messages

In which case you may see something like this:

Dec 17 14:13:24 inet01 setroubleshoot:
SELinux is preventing /usr/sbin/httpd (httpd_t) "write" to virtual.d 
(etc_t).
For complete SELinux messages. run sealert -l
15618e2e-044c-4c4c-b3fc-ec1eba554d02

In this case you can follow the suggestion given in the log message and run
sealert:

# sealert -l 15618e2e-044c-4c4c-b3fc-ec1eba554d02
Summary
SELinux is preventing /usr/sbin/httpd (httpd_t) "write" to virtual.d
(etc_t).

Detailed Description
SELinux is preventing /usr/sbin/httpd (httpd_t) "write" to virtual.d
(etc_t). The SELinux type %TARGET_TYPE, is a generic type for all files in
the directory and very few processes (SELinux Domains) are allowed to write
...   yada-yada-yada...
...
Allowing Access
You can attempt to fix file context by executing restorecon -v virtual.d

The following command will allow this access:
restorecon virtual.d

And then you can try that, although I have rarely had a problem with SELinux
solved so simply:

# cd /path/to/virtual.d
# restorecon virtual.d

Anyway, if that does not work, or one never received an setroubleshoot report
to begin with, then I end up turning to audit2allow.  I do something like this
(where rsync is the process that I am having difficulty with, it could be
httpd, vsftp or anything else):

# grep rsync /var/log/audit/audit.log | audit2allow

Which may yield a report something like this:

#= prelink_t ==
allow prelink_t rsync_data_t:file read;

Now, if this does not look too alarming in terms of the access that rsync
seems to be seeking (being able to read files to be transferred seems a
logical enough expectation and the benefit/limitations of prelink seem to
require access in this instance) then we can add this permission to our policy
via a local module. You make one of these in this fashion:

#
#  grep rsync /var/log/audit/audit.log | audit2allow -M localrsyncmod

 IMPORTANT ***
To make this policy package active, execute:

semodule -i localrsyncmod.pp
#

Again, you simply follow the instructions given in the report.

# semodule -i localrsyncmod.pp

Now you do yet another test and check the log files.  If the problem is fixed,
then great, you are finished.  Usually, however, SELinux issues continually
reveal one permission problem after another, sometimes with different
processes, until, at last, they have all been accommodated. Consequently you
end up re-running your tests, checking the audit files, and modifying the
local policy one item at a time.

Note that simply overriding what SELinux is prohibiting is not what I am
advocating here.  Sometimes the problem is that the software needs its file
system access expectations trimmed back and that requires filing a bug report
with the maintainers.  However, in a production environment you normally just
have to get things working and what I usually do is weigh what the program is
requesting against what I want it to do for me.  Often the problem is that the
default policy is simply too restrictive.  On rare occasions I do actually
file a bug report but almost always override the local policy any

AW: [CentOS] question on minimal install using CF as /dev/sda

[Marc Rebischke]

Hi all,

We're attempting to use CentOS 5.1 on a test platform which uses a CF 
card as it's primary storage.  (MB: ETX-LX)
The BIOS supports booting from CD and/or the CF.

Issues we've run into are:
During installation of CentOS 5.1, it appears all goes well through 
partitioning, package selection, interface configuration.  Once the 
install starts in earnest, errors pop up...a snippet is:


Traceback (most recent call first):
File
"/usr/lib/python2.4/site-packages/yum/packageSack.py", line 640, in 
returnNewestByName
raise PackageSackError, 'No Package Matching %s' % name
File
"/usr/lib/python2.4/site-packages/yum/packageSack.py", line 318, in 
returnNewestByName return bestofeach.returnNewestByName(name)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 
1093, in getBestKernalByArch
pkgs=
ayum.pkgSack.returnNewestByName(pkgname)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 
1102, in selectBestKernel
kpkg = getBestKernalByArch("kernel", self.ayum)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 1236 
in doPostSelection
self.selectBestKernel(anaconda)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/backend.py", line 177 in 
doPostSelection
return
anaconda.backend.doPostSelection(anaconda)
==

It appears that we're not writing to the CF and a driver is needed.  We 
have the driver, but are uncertain how to pass the information to the 
installer.  No Floppy is present.

Any thoughts or suggestions or pointers to resources would be greatly 
appreciated.

Regards,
-Ray

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##
Ray,

Which Driver do you mean ?
Since CF-Cards are IDE/ATA-Compatible there's normally no need to install any 
Drivers to Access the CF.

If you really need a driver for a Hardware-Component during install you could 
copy the driver to an USB-Stick instead a floppy...


Some more Ideas/Hints...

You could/should check if the
md5/sha-checksum of the downloaded CentOS ISO(s) is/are OK.

Did you made any changes to the "minimal Installation" Package-List ?

If you are using the netinstall.iso you
could give the "full" CD/DVD-ISO(s) a try.

Just my 2 Cents for now.

Regards
Marc Rebischke




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Re: [CentOS] RAID5 or RAID50 for database?

[nightduke]

I prefer raid level of ibm

For Dell you can find more info about raid level at

http://support.dell.com/support/edocs/storage/RAID/RAIDbk0.pdf

But add hot spare disks

Nightduke


2008/5/22, Warren Young <[EMAIL PROTECTED]>:
> Rudi Ahlers wrote:
> >
> > So, how does it perform with 6 discs for example? Say I have 3 HDD's in
> RAID-0, and another 3 in RAID-0, then RAID-1 the 2 RAID-0 stripes.
> >
>
> There's actually two kinds of RAID-10.  Some like to say RAID-01 or RAID-1+0
> or things like that to distinguish them.  It's a matter of whether it's
> mirrors over stripes or stripes over mirrors.  You're talking about mirrors
> over stripes, but I'm talking about doing it the other way around.
>
> Your way has the advantage of letting you add disks in pairs, but to get
> that you get only single-disk redundancy: if a second disk goes out, your
> array is gone, no matter which disk it is.
>
> If you do it the other way, you have to use groups of 4 (two mirrors striped
> together) but you get the advantage that with a single disk missing, you can
> lose another if it's in the other mirror.  Of course, if you lose two in the
> same mirror, you're toast.
>
> > And what would you recommend on 8 / 10 HDD's?
> >
>
> As I said, usually RAID-5 or -6 usually makes more sense with so many
> spindles.  If you're talking RAID-10 (my way) with so many disks, it starts
> getting expensive with 8, 12, etc.
>
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Re: [CentOS] RAID5 or RAID50 for database?

[Warren Young]

Rudi Ahlers wrote:


So, how does it perform with 6 discs for example? Say I have 3 HDD's in 
RAID-0, and another 3 in RAID-0, then RAID-1 the 2 RAID-0 stripes. 


There's actually two kinds of RAID-10.  Some like to say RAID-01 or 
RAID-1+0 or things like that to distinguish them.  It's a matter of 
whether it's mirrors over stripes or stripes over mirrors.  You're 
talking about mirrors over stripes, but I'm talking about doing it the 
other way around.


Your way has the advantage of letting you add disks in pairs, but to get 
that you get only single-disk redundancy: if a second disk goes out, 
your array is gone, no matter which disk it is.


If you do it the other way, you have to use groups of 4 (two mirrors 
striped together) but you get the advantage that with a single disk 
missing, you can lose another if it's in the other mirror.  Of course, 
if you lose two in the same mirror, you're toast.



And what would you recommend on 8 / 10 HDD's?


As I said, usually RAID-5 or -6 usually makes more sense with so many 
spindles.  If you're talking RAID-10 (my way) with so many disks, it 
starts getting expensive with 8, 12, etc.

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[CentOS] Re: RAID5 or RAID50 for database?

[Scott Silva]

on 5-22-2008 9:12 AM Rudi Ahlers spake the following:

Warren Young wrote:

John R Pierce wrote:

raid50 requires 2 or more raid 5 volumes.

with 4 disks, thats just not an option.

for file storage (including backup files from a database), raid5 is
probably fine... for primary database tablespace storage, I'd only use
raid1 or raid10.


RAID-10 has only one perfect application, and that's with exactly four 
disks.  It can't use fewer, and the next larger step is 8, where other 
flavors of RAID usually make more sense.  But, for the 4-disk 
configuration, it's unbeatable unless you need capacity more than 
speed and redundancy.  (In that case, you go with RAID-5.)


RAID-10 gives the same redundancy as RAID-50: guaranteed tolerance of 
a single disk lost, and will tolerate a second disk lost at the same 
time if it's in the other half of the RAID.  RAID-10 may also give 
better performance than RAID-50.  I'm not sure because you're trading 
off more spindles against more parity calculation with the RAID-50.  
At any rate, RAID-10 shouldn't be *slower*.

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It seems like you know / like RAID-10 a lot :)

So, how does it perform with 6 discs for example? Say I have 3 HDD's in 
RAID-0, and another 3 in RAID-0, then RAID-1 the 2 RAID-0 stripes. How 
well would that work?

And what would you recommend on 8 / 10 HDD's?

What you are describing would be raid 0+1 not raid 10. Most docs I have read 
state that raid 10 is more fault tolerant. Here is one that explains it better;

http://www.pcguide.com/ref/hdd/perf/raid/levels/multXY-c.html


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you notice quickly if they don't



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RE: [CentOS] COBOL

[Ross S. W. Walker]

James B. Byrne wrote:

> On : Wed, 21 May 2008 16:57:37 -0400, "Ross S. W. Walker" <[EMAIL PROTECTED]> 
> wrote:
> 
> > I would just buy the RH licenses for the project. CentOS may work well
> > for development and testing platform, but the production code should
> > be on fully supported RHEL.
> 
> Having been on RHEL support, and having had occasion to use that support quite
> extensively, I have formed an opinion to the contrary.
> 
> My experience did not lead me to the conclusion that licensed RHEL
> distributions, together with the highest available level of support offered by
> RedHat, provided any measurable benefit over CentOS and community support.  In
> fact, my experiences with RedHat Support, which were not in the least bit
> negative, led me to abandon RedHat, first to WhiteBox and thence to CentOS.

[woeful story of RH layered support]

> I cannot perceive any measurable advantage to having a support contract for
> OSS, other than perhaps with the actual core team of the exact product you are
> using.  RH is a packager, which is not to denigrate either the value of the
> integration work that they do, or its technical merit. Nonetheless, most OSS
> support problems are either resolved by re-reading the specific package
> documentation, having an obscure feature identified and explained by someone
> that knows about it, bypassing the impediment, or when all else fails writing
> and submitting your own patch.

I agree support contracts from Redhat or Microsoft or Novell provide very
little value on the surface, but there are advantages to these contracts
besides phone support.

1) Third party vendor support. These contracts and installations will
allow your software, hardware and development vendors to provide you with
the support you need/want.

2) Service agreements. Just like there is an EULA there is also a vendor
agreement within the contracts. Read them carefully. In there there are
terms that the vendor agrees to meet that are beneficial to the long
term support of their product.

3) Indemnification. Not all vendors provide this, but most do. This will
assure you, management and legal that your company will not be held
legally accountable for any intellectual property or copyright violations
that may occur due to improper licensing on behalf of the software vendor.

4) Compliance. Most regulatory controls require that there be some
level of service contract on the software that constitutes your primary
production environment. This doesn't have to be a blanket policy, just
your primary production systems. The bread n' butter so to speak.

There is a lot more to a software support plan then just phone support.

-Ross

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Re: [CentOS] 1333/8GB Intel motherboard for C5.1

[MHR]

On Thu, May 22, 2008 at 5:42 AM, Karanbir Singh <[EMAIL PROTECTED]> wrote:
>
> Perhaps I was not clear in my original email, the point being that you dont
> need to rebuild drivers when kernels update ( in 99% of the cases )

Is that now true also of the nvidia driver(s)?  I haven't seen
anything so to indicate.

Thanks.

mhr
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RE: [CentOS] COBOL

[James B. Byrne]

On : Wed, 21 May 2008 16:57:37 -0400, "Ross S. W. Walker" <[EMAIL PROTECTED]>
wrote:

> I would just buy the RH licenses for the project. CentOS may work well
> for development and testing platform, but the production code should
> be on fully supported RHEL.

Having been on RHEL support, and having had occasion to use that support quite
extensively, I have formed an opinion to the contrary.

My experience did not lead me to the conclusion that licensed RHEL
distributions, together with the highest available level of support offered by
RedHat, provided any measurable benefit over CentOS and community support.  In
fact, my experiences with RedHat Support, which were not in the least bit
negative, led me to abandon RedHat, first to WhiteBox and thence to CentOS.

The practical matter is that RedHat Support is provided in layers, with
minimally experienced person filtering support calls. This was, and I expect
still is, the case regardless of what level of support is purchased.  By the
time a serious problem got to a person in RedHat who possessed anywhere near
my own experience with the systems under consideration either I had already
solved the issue (usually with help from Goole or project specific mailing
lists), identified a satisfactory workaround, or had determined that the
problem was unsolvable in the timeframe required with the resources available.

RedHat support people were unfailingly polite and helpful, but the fact
remains that the value for fee was not evident.

Immediate support (which is really the only kind that matters to an
organization, anything else is really a development project of some sort)  for
open source systems comes in two basic flavors, enlightenment and custom
consulations.  Enlightenment is provided by informed individuals who are
willing to share their knowledge and experience with others who problems are
products of their own ignorance.  Members of this mailing list have provided
enlightenment to me on many, many occasions.

Custom work is either provided from ones own resources or is contracted out to
people who really know the system you need fixed/enhanced within a minimal
amount of time.   I have engaged open source software authors to enhance their
products with features that our firm desired on many occasions and in fact am
doing so with one at the present time.

I cannot perceive any measurable advantage to having a support contract for
OSS, other than perhaps with the actual core team of the exact product you are
using.  RH is a packager, which is not to denigrate either the value of the
integration work that they do, or its technical merit.  Nonetheless, most OSS
support problems are either resolved by re-reading the specific package
documentation, having an obscure feature identified and explained by someone
that knows about it, bypassing the impediment, or when all else fails writing
and submitting your own patch.

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Re: [CentOS] RAID5 or RAID50 for database?

[Guy Boisvert]

Jason Clark wrote:
> You're going to need two RAID controllers and 6 drives to do RAID 50.
> RAID 50  will be faster, but costs more in drives and controllers.
> 
> 
> 
> Jason
> www.cyborgworkshop.org
> 
> 
> mcclnx mcc wrote:
>> we have DELL 6800 server with 12 internal disks in it.  O.S. is CENTOS
>> 4.6 and SCSI control card is PERC 4e/di.
>>
>> We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50.  This
>> logical volume will be use as file systems and store database backup files.
>>
>> Can anyone tell me which one is better on performance?
>>

1st, Jason, please do not top post!  It makes life harder in mailing lists.


http://www.centos.org/modules/tinycontent/index.php?id=16
(item 2, "Guidelines for CentOS Mailing List posts")


You do not need two (2) raid controllers unless you want to have
redundancy at the controller level.  Adaptec, 3Ware, etc do RAID 50.
For RAID 50, you need at least 6 disks.

http://en.wikipedia.org/wiki/RAID


For database, i'd go with RAID 10.  As pointed out Joseph in a previous
post, RAID 5 rebuilding would slows the array down.

As for RAID 10, i didn't make extensive benchmarks but here are the
rough results i got with Adaptec 3405 and four (4) Seagate 15K SAS drives:


RAID 5: Read = 170 MiB/s
Write =  135 MiB/s

RAID 10: Read = 170 MiB/s
 Write = 160 MiB/s

And the difference gap (write) should increase in favor of RAID 10 as
one add disks (provided that the controller use more PCI-e lane than the
Adaptec 3405 which use 4 lanes or even using the PCI-X bus).  RAID 5
uses XOR calculation.


Guy Boisvert, ing.
IngTegration inc.
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Re: [CentOS] RAID5 or RAID50 for database?

[Rudi Ahlers]

Warren Young wrote:

John R Pierce wrote:

raid50 requires 2 or more raid 5 volumes.

with 4 disks, thats just not an option.

for file storage (including backup files from a database), raid5 is
probably fine... for primary database tablespace storage, I'd only use
raid1 or raid10.


RAID-10 has only one perfect application, and that's with exactly four 
disks.  It can't use fewer, and the next larger step is 8, where other 
flavors of RAID usually make more sense.  But, for the 4-disk 
configuration, it's unbeatable unless you need capacity more than 
speed and redundancy.  (In that case, you go with RAID-5.)


RAID-10 gives the same redundancy as RAID-50: guaranteed tolerance of 
a single disk lost, and will tolerate a second disk lost at the same 
time if it's in the other half of the RAID.  RAID-10 may also give 
better performance than RAID-50.  I'm not sure because you're trading 
off more spindles against more parity calculation with the RAID-50.  
At any rate, RAID-10 shouldn't be *slower*.

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It seems like you know / like RAID-10 a lot :)

So, how does it perform with 6 discs for example? Say I have 3 HDD's in 
RAID-0, and another 3 in RAID-0, then RAID-1 the 2 RAID-0 stripes. How 
well would that work?

And what would you recommend on 8 / 10 HDD's?

--

Kind Regards
Rudi Ahlers
CEO, SoftDux

Web:   http://www.SoftDux.com
Check out my technical blog, http://blog.softdux.com for Linux or other 
technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff

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Re: [CentOS] IPTables help

[Akemi Yagi]

On Thu, May 22, 2008 at 8:30 AM, Joseph L. Casale
<[EMAIL PROTECTED]> wrote:

> I have limited experience with iptables and would love some guidelines. Any
> pointers
> would be greatly appreciated!

This CentOS wiki may help:

http://wiki.centos.org/HowTos/Network/IPTables

Akemi
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Re: [CentOS] RAID5 or RAID50 for database?

[Warren Young]

John R Pierce wrote:

raid50 requires 2 or more raid 5 volumes.

with 4 disks, thats just not an option.

for file storage (including backup files from a database), raid5 is
probably fine... for primary database tablespace storage, I'd only use
raid1 or raid10.


RAID-10 has only one perfect application, and that's with exactly four 
disks.  It can't use fewer, and the next larger step is 8, where other 
flavors of RAID usually make more sense.  But, for the 4-disk 
configuration, it's unbeatable unless you need capacity more than speed 
and redundancy.  (In that case, you go with RAID-5.)


RAID-10 gives the same redundancy as RAID-50: guaranteed tolerance of a 
single disk lost, and will tolerate a second disk lost at the same time 
if it's in the other half of the RAID.  RAID-10 may also give better 
performance than RAID-50.  I'm not sure because you're trading off more 
spindles against more parity calculation with the RAID-50.  At any rate, 
RAID-10 shouldn't be *slower*.

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Re: [CentOS] samba question

[Guy Boisvert]

david chong wrote:

Hi,

I am running Centos5.1, trying to configure samba now. I am quite new
in this area and hope help from the list.

I could not connect to it from a windows xp pc

From the console, I log in and do a



smbclient -L localhost -U%


Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Sharename   Type  Comment
-     ---
samba   Disk
IPC$IPC   IPC Service (Samba 3.0.25b-0.el5.4)
Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Server   Comment
----
ANTIOCH  Samba 3.0.25b-0.el5.4

WorkgroupMaster
----
MYGROUP  ANTIOCH

Could you pls help.
Thanks

David


Hi David,

I recommend you this: http://www.samba.org/samba/docs/man/Samba-Guide/

This is IMHO an excellent guide made by the good folks at samba.org.

Very basically, you need to edit /etc/samba/smb.conf and define your 
shares there.  The default file is abundantly commented.


You can have your server validate the accesses using locally stored 
samba/users accounts or even validate with a SMB/CIFS PDC (Winblows or 
Samba).


Hope this helped a bit!


Guy Boisvert, ing.
IngTegration inc.
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Re: [CentOS] Strange NTP problem

[Jason Clark]

I had a similar problem on a different server that I fixed last night.
Evidently it had a BIOS level feature that tried to modify the CPU clock
rate, much like cpu-freq does within the kernel, and was doing so by
messing with the system clock impacting the RTC.   I was drifting all
over the place until I found and disabled that feature (foxcon board,
something like foxstep I believe is what it is called in BIOS). Not sure
if your lenovo boards have that feature, but i know that some ASUS
boards do.


Jason
www.cyborgworkshop.org


Paul Heinlein wrote:
> On Tue, 20 May 2008, Alfred von Campe wrote:
> 
>> I have 30 identical Lenovo desktop systems running CentOS 5.1.  On one
>> of those systems the clock is running slow (5+ minutes from yesterday
>> to this morning and another minute since this morning) despite the
>> fact that NTP is running on all of them and they all have the exact
>> same /etc/ntp.conf file (I compared the MD5 sums of that file on all
>> the systems).  Here is the output of "grep ntp /var/log messages" on
>> the system with the problem since I restarted the NTP daemon earlier
>> today:
> 
> A slew of 5 min/24 hrs should be in the range of fixable.
> 
>> May 20 11:35:38 hepdsw03 ntpd[31792]: frequency initialized 0.000 PPM
>> from /var/lib/ntp/drift
> 
> This is very suspect. Are there any SELinux or other log messages
> suggesting that ntpd isn't able to write to its drift file? Your local
> clock is definitely drifting, so a 0.000 value is bogus. It may indicate
> that there's a disconnect between ntpd and the filesystem.
> 
> I'd be interested in the output of "ntpdc -c kerninfo"; on most systems
> the 'pll frequency' value is a close match to the figure in the drift file.
> 
>> May 20 11:38:55 hepdsw03 ntpd[31792]: synchronized to LOCAL(0),
>> stratum 10
>> May 20 11:38:55 hepdsw03 ntpd[31792]: kernel time sync disabled 0001
>> May 20 11:39:59 hepdsw03 ntpd[31792]: synchronized to 10.101.32.104,
>> stratum 3
> 
> This is ungood. Sync-ing to local before your network time server means
> that your machine doesn't want to believe your server -- and you should
> see a "kernel time sync enabled" message once the machine has sync-ed
> with the time server.
> 
> You said the machines are identical. Could there be any variation in the
> BIOS revision level or its settings? Sometimes ACPI stuff can mess up ntp.
> 
> Also -- the log messages you provide have no "step time server"
> reference. Do you have a valid /etc/ntp/step-tickers file?
> 
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[CentOS] IPTables help

[Joseph L. Casale]

I have a dual homed server in an install for someone who is very cost sensitive.
This server originally is being setup as an Asterisk server, but now the 
simplest
thing for me to do is also set it up to provide internet access for the small 
shop as well.

So it will have one external, WAN  facing nic that needs all incoming ports 
except UDP 5060 and
1 -> 6 blocked for all but two ips.

The internal, LAN facing  NIC will need all ports except voip/dns/http blocked 
to it, and need to
provide masquerading.

I have limited experience with iptables and would love some guidelines. Any 
pointers
would be greatly appreciated!

Thanks,
jlc
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Re: [CentOS] Strange NTP problem

[Alfred von Campe]

I'm still having this issue.  Here is another update.  I noticed that  
the drift file for the system with the problem contained "0.000".  On  
most other systems this contains a positive number (and on two a  
negative number).  I deleted the drift file, resynch'ed the time with  
"ntpdate ", restarted the NTP daemon, and waited for the  
drift file to be recreated.  It again contained "0.000" and the  
output of "ntpq -np looked like this:


   remote   refid  st t when poll reach   delay
offset  jitter
   
 
==
   10.101.32.104   67.128.71.65 3 u   49   64  3770.611   
1871.40 987.132
  *127.127.1.0 .LOCL.  10 l   48   64  3770.000 
0.000   0.001


I replaced the drift file with the contents of the file before the  
upgrade to CentOS, resynch'ed the time, and restarted the NTP  
daemon.  But after a little while, the system is "bound" to itself  
again.


BTW, the output of the cron job running ntpdate once an hour showed  
that the system has a very steady drift of 14.9 seconds every hour.   
Does that seem excessive?  NTP should be able to handle this, right?


Alfred

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RE: [CentOS] RAID5 or RAID50 for database?

[Joseph L. Casale]

>We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50.  This logical 
>volume will be use as file systems and store database backup files.

I wouldn't use Raid 5 on a DB, the performance degradation during rebuild and 
low fault tolerance aren't appealing to me.
jlc
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Re: [CentOS] RAID5 or RAID50 for database?

[Jason Clark]

You're going to need two RAID controllers and 6 drives to do RAID 50.
RAID 50  will be faster, but costs more in drives and controllers.



Jason
www.cyborgworkshop.org


mcclnx mcc wrote:
> we have DELL 6800 server with 12 internal disks in it.  O.S. is CENTOS
> 4.6 and SCSI control card is PERC 4e/di.
> 
> We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50.  This
> logical volume will be use as file systems and store database backup files.
> 
> Can anyone tell me which one is better on performance?
> 
> Thanks.
> 
> 付費才容量無上限？Yahoo!奇摩電子信箱2.0免費給你，信件永遠不必刪！ - *馬
> 上體驗*
> 
> *！*
> 
> 
> 
> 
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Re: [CentOS] RAID5 or RAID50 for database?

[John R Pierce]

mcclnx mcc wrote:
> we have DELL 6800 server with 12 internal disks in it. O.S. is CENTOS
> 4.6 and SCSI control card is PERC 4e/di.
>
> We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50. This
> logical volume will be use as file systems and store database backup
> files.
>
> Can anyone tell me which one is better on performance?


raid50 requires 2 or more raid 5 volumes.

with 4 disks, thats just not an option.

for file storage (including backup files from a database), raid5 is
probably fine... for primary database tablespace storage, I'd only use
raid1 or raid10.
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Re: [CentOS] Failed boot drive

[Hakan Koseoglu]

On Thu, May 22, 2008 at 3:42 PM, Dean Maluski <[EMAIL PROTECTED]> wrote:
> Unclear on how to recover from failed boot drive?
> SDA has failed but I'm still able to boot.
> I need to replace primary boot drive. Upon initial build I created a
> RAID 1 mirror of /boot dir/partition.
> How do I get system to boot off second or third drive so that I can
> replace /sda?

If you have mirrored /boot, when grub kicks in, go into edit mode and
replace root (hd0,0) with (hd1,0) or so on.

If you want to do this automatically, you should have had fallback
parameter in the menu.lst and two or more copies of the kernel entries
but the change above will let you boot from one of the other drives.

Right now I am converting a system that was incorrectly set up to
software RAID1. Hope it works, the server is in the wrong continent.
:-) If only the sysadmin installed it with RAID1 to start with.

So the grub should look like:

default=0
fallback=1
and then two blocks of the same kernel configuration, one with root
(hd0,0) and one with root (hd1,0).

The rest should be logical volumes or /dev/md references so the kernel
will pick up the right one, hopefully.
-- 
Hakan (m1fcj)
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[CentOS] Failed boot drive

[Dean Maluski]

Unclear on how to recover from failed boot drive?
SDA has failed but I'm still able to boot.
I need to replace primary boot drive. Upon initial build I created a
RAID 1 mirror of /boot dir/partition.
How do I get system to boot off second or third drive so that I can
replace /sda?
I've successfully replaced /sdb & sdc raid 5 drives in the past but have
always struggled to get primary boot drive replaced.
Read HOWTO's in the past but it's been an unsuccessful pain and
eventually just did a full rebuild.


I just read another HOWTO and as confused as I was several months ago,
nothing on getting system to boot from alternate drive.

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Re: [CentOS] samba question

[Anne Wilson]

On Thursday 22 May 2008 14:11:31 John wrote:
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of david chong
> Sent: Thursday, May 22, 2008 6:21 AM
> To: CentOS mailing list
> Subject: [CentOS] samba question
>
> Hi,
>
> I am running Centos5.1, trying to configure samba now. I am quite new in
> this area and hope help from the list.
>
> I could not connect to it from a windows xp pc
>
> >From the console, I log in and do a
> >
> >smbclient -L localhost -U%
>
> Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]
>
> Sharename   Type  Comment
> -     ---
> samba   Disk
> IPC$IPC   IPC Service (Samba 3.0.25b-0.el5.4)
> Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]
>
> Server   Comment
> ----
> ANTIOCH  Samba 3.0.25b-0.el5.4
>
> WorkgroupMaster
> ----
> MYGROUP  ANTIOCH
>
> Could you pls help.
> Thanks
>
> David
> ---
> Did you do any basic network trouble shooting like ping the samba server
> from the windows host by servername and the ip addy? Start there. You
> should also need to disable windows simple file sharing in the Tools Menu.
> Have a look at wiki.centos.org there is great how to there about how to do
> all this. You will also need to define samba or unix users on your samba
> server. 

If you haven't done samba troubleshooting before google for it.  There is a 
very good guide out there - the copy I have is *way* out of date so I won't 
offer it.

Anne


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[CentOS] RAID5 or RAID50 for database?

[mcclnx mcc]

we have DELL 6800 server with 12 internal disks in it.  O.S. is CENTOS 4.6 and 
SCSI control card is PERC 4e/di.

We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50.  This logical 
volume will be use as file systems and store database backup files.

Can anyone tell me which one is better on performance?

Thanks.

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[CentOS] question on minimal install using CF as /dev/sda

[Ray Leventhal]

Hi all,

We're attempting to use CentOS 5.1 on a test platform which uses a CF 
card as it's primary storage.  (MB: ETX-LX)

The BIOS supports booting from CD and/or the CF.

Issues we've run into are:
During installation of CentOS 5.1, it appears all goes well through 
partitioning, package selection, interface configuration.  Once the 
install starts in earnest, errors pop up...a snippet is:



Traceback (most recent call first):
File
"/usr/lib/python2.4/site-packages/yum/packageSack.py", line 640, in 
returnNewestByName

   raise PackageSackError, 'No Package Matching %s' % name
File
"/usr/lib/python2.4/site-packages/yum/packageSack.py", line 318, in 
returnNewestByName return bestofeach.returnNewestByName(name)

File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 
1093, in getBestKernalByArch

   pkgs=
ayum.pkgSack.returnNewestByName(pkgname)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 
1102, in selectBestKernel

   kpkg = getBestKernalByArch("kernel", self.ayum)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/yuminstall.py", line 1236 
in doPostSelection

   self.selectBestKernel(anaconda)
File
"/tmp/treedir.29352/instimage/usr/lib/anaconda/backend.py", line 177 in 
doPostSelection

   return
anaconda.backend.doPostSelection(anaconda)
==

It appears that we're not writing to the CF and a driver is needed.  We 
have the driver, but are uncertain how to pass the information to the 
installer.  No Floppy is present.


Any thoughts or suggestions or pointers to resources would be greatly 
appreciated.


Regards,
-Ray

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RE: [CentOS] samba question

[John]

 
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of david chong
Sent: Thursday, May 22, 2008 6:21 AM
To: CentOS mailing list
Subject: [CentOS] samba question

Hi,

I am running Centos5.1, trying to configure samba now. I am quite new in
this area and hope help from the list.

I could not connect to it from a windows xp pc
>From the console, I log in and do a

>smbclient -L localhost -U%

Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Sharename   Type  Comment
-     ---
samba   Disk
IPC$IPC   IPC Service (Samba 3.0.25b-0.el5.4)
Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Server   Comment
----
ANTIOCH  Samba 3.0.25b-0.el5.4

WorkgroupMaster
----
MYGROUP  ANTIOCH

Could you pls help.
Thanks

David
---
Did you do any basic network trouble shooting like ping the samba server
from the windows host by servername and the ip addy? Start there. You should
also need to disable windows simple file sharing in the Tools Menu. Have a
look at wiki.centos.org there is great how to there about how to do all
this. You will also need to define samba or unix users on your samba server.
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Re: [CentOS] Interface bonding?

[Mag Gam]

Thanks Jim. Since, 802.3ad requires switch settings does it perform better
than other modes? Does anyone have any benchmarks?

TIA

On Thu, May 22, 2008 at 7:19 AM, James Pearson <[EMAIL PROTECTED]>
wrote:

> Mag Gam wrote:
>
>> Just out of curiosity.
>>
>> If you wanted to bond do you have to ask your network admin to configure a
>> special switch setting for MAC addresses?
>>
>
> AFAIK, only with 802.3ad
>
> The other Linux bonding modes don't require any switch settings
>
>
> James Pearson
>
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Re: [CentOS] 1333/8GB Intel motherboard for C5.1

[Karanbir Singh]

Farkas Levente wrote:

Sweet thanks. Now I know about dkms-enabled driver package which
rebuilds the driver automatically for each kernel upgrade!


ofcouse, you dont need that on CentOS :D


rhel 5.2 contains updated drivers. so as centos 5.2 will be release
these problems will vanish.


Perhaps I was not clear in my original email, the point being that you 
dont need to rebuild drivers when kernels update ( in 99% of the cases )



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[CentOS] CentOS-announce Digest, Vol 39, Issue 10

[centos-announce-request]

Send CentOS-announce mailing list submissions to
[EMAIL PROTECTED]

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.centos.org/mailman/listinfo/centos-announce
or, via email, send a message with subject or body 'help' to
[EMAIL PROTECTED]

You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."


Today's Topics:

   1. CESA-2008:0275 Important CentOS 5 i386 kernel Update
  (Karanbir Singh)
   2. CESA-2008:0275 Important CentOS 5 x86_64 kernel   Update
  (Karanbir Singh)
   3. CEBA-2008:0280  CentOS 5 i386 xen Update (Karanbir Singh)
   4. CEBA-2008:0280  CentOS 5 x86_64 xen Update (Karanbir Singh)
   5. CESA-2008:0287 Important CentOS 3 i386 libxslt -  security
  update (Tru Huynh)
   6. CESA-2008:0287 Important CentOS 3 x86_64 libxslt  - security
  update (Tru Huynh)
   7. CESA-2008:0287 Important CentOS 5 i386 libxsltUpdate
  (Karanbir Singh)
   8. CESA-2008:0287 Important CentOS 5 x86_64 libxslt  Update
  (Karanbir Singh)
   9. CESA-2008:0489 Critical CentOS 5 i386 gnutls  Update
  (Karanbir Singh)
  10. CESA-2008:0489 Critical CentOS 5 x86_64 gnutlsUpdate
  (Karanbir Singh)
  11. CESA-2008:0287-01: Important CentOS 2 i386libxslt security
  update (John Newbigin)


--

Message: 1
Date: Wed, 21 May 2008 13:48:13 +0100
From: Karanbir Singh <[EMAIL PROTECTED]>
Subject: [CentOS-announce] CESA-2008:0275 Important CentOS 5 i386
kernel  Update
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii


CentOS Errata and Security Advisory 2008:0275 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0275.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( md5sum Filename ) 

i386:
e16e0e18187d9d931228c6e11c2d89bf  kernel-2.6.18-53.1.21.el5.i686.rpm
84a3d53a655a9abbaa1bbc9e2a74d007  kernel-debug-2.6.18-53.1.21.el5.i686.rpm
54854a7515043387932785d0ca5a5b37  kernel-debug-devel-2.6.18-53.1.21.el5.i686.rpm
cacfe849df6d086fe0df5ba2548e54d2  kernel-devel-2.6.18-53.1.21.el5.i686.rpm
bc8dc922d73b61515b0b502b60e5e084  kernel-doc-2.6.18-53.1.21.el5.noarch.rpm
52cc1bf88bc8d423151a6841c2705166  kernel-headers-2.6.18-53.1.21.el5.i386.rpm
5539c13872ad6708ab0377e85d50e372  kernel-PAE-2.6.18-53.1.21.el5.i686.rpm
dae280d46074f4d34a4a2386c04aa972  kernel-PAE-devel-2.6.18-53.1.21.el5.i686.rpm
4ab36b9e7adf36ca15b337c1bcb4021d  kernel-xen-2.6.18-53.1.21.el5.i686.rpm
3fcf05e0c22b3a6eaaf13bd73554960a  kernel-xen-devel-2.6.18-53.1.21.el5.i686.rpm

Source:
6db1dbe7a05d80061bd593bfa16b90ea  kernel-2.6.18-53.1.21.el5.src.rpm


-- 
Karanbir Singh
CentOS Project { http://www.centos.org/ }
irc: z00dax, [EMAIL PROTECTED]



--

Message: 2
Date: Wed, 21 May 2008 13:48:13 +0100
From: Karanbir Singh <[EMAIL PROTECTED]>
Subject: [CentOS-announce] CESA-2008:0275 Important CentOS 5 x86_64
kernel  Update
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii


CentOS Errata and Security Advisory 2008:0275 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0275.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( md5sum Filename ) 

x86_64:
78271de2d69838649627edabf22065a3  kernel-2.6.18-53.1.21.el5.x86_64.rpm
867eea6bf5aad07eb555ebbdaf1ffbd4  kernel-debug-2.6.18-53.1.21.el5.x86_64.rpm
c43110331d753e6a8bdd9d92648fb367  
kernel-debug-devel-2.6.18-53.1.21.el5.x86_64.rpm
42779778f08052c98118eecbb3952880  kernel-devel-2.6.18-53.1.21.el5.x86_64.rpm
3417b759c192526d881d73af4b12d5d8  kernel-doc-2.6.18-53.1.21.el5.noarch.rpm
9b23032f049ad4aecd77a83cd2b328d4  kernel-headers-2.6.18-53.1.21.el5.x86_64.rpm
51bdb647b793105738ff423845bcc11f  kernel-xen-2.6.18-53.1.21.el5.x86_64.rpm
4d8896b2d8495b5f043e298cac809f67  kernel-xen-devel-2.6.18-53.1.21.el5.x86_64.rpm

Source:
6db1dbe7a05d80061bd593bfa16b90ea  kernel-2.6.18-53.1.21.el5.src.rpm


-- 
Karanbir Singh
CentOS Project { http://www.centos.org/ }
irc: z00dax, [EMAIL PROTECTED]



--

Message: 3
Date: Wed, 21 May 2008 14:01:45 +0100
From: Karanbir Singh <[EMAIL PROTECTED]>
Subject: [CentOS-announce] CEBA-2008:0280  CentOS 5 i386 xen Update
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii


CentOS Errata and Bugfix Advisory 2008:0280 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2008-0280.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( md5sum Filename ) 

i386:
fe1476d70e4b6587e5b400aa87d98e33  xen-3.0.3-41.el5_1.6.i386.rpm
d816b1d9bcd821873c2795fc5653a50d  xen-devel-3.0.3-41.el5_1.6.i386.rpm
446c29eeb926276cee3958194e88

Re: [CentOS] 1333/8GB Intel motherboard for C5.1

[Farkas Levente]

Karanbir Singh wrote:

Shawn wrote:



Realtek drivers can be found in the CentOS wiki:

http://wiki.centos.org/HardwareList#head-851e245f4f537add3de9c3c6a6d686771fb01bfa 



Sweet thanks. Now I know about dkms-enabled driver package which
rebuilds the driver automatically for each kernel upgrade!


ofcouse, you dont need that on CentOS :D


rhel 5.2 contains updated drivers. so as centos 5.2 will be release 
these problems will vanish.


--
  Levente   "Si vis pacem para bellum!"
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Re: [CentOS] Interface bonding?

[James Pearson]

Mag Gam wrote:

Just out of curiosity.

If you wanted to bond do you have to ask your network admin to configure a
special switch setting for MAC addresses?


AFAIK, only with 802.3ad

The other Linux bonding modes don't require any switch settings

James Pearson

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Re: [CentOS] Interface bonding?

[Michael Simpson]

On 5/22/08, Mag Gam <[EMAIL PROTECTED]> wrote:
> Just out of curiosity.
>
> If you wanted to bond do you have to ask your network admin to configure a
> special switch setting for MAC addresses?
>

depends on the mode of bonding


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Re: [CentOS] 1333/8GB Intel motherboard for C5.1

[Karanbir Singh]

Shawn wrote:



Realtek drivers can be found in the CentOS wiki:

http://wiki.centos.org/HardwareList#head-851e245f4f537add3de9c3c6a6d686771fb01bfa


Sweet thanks. Now I know about dkms-enabled driver package which
rebuilds the driver automatically for each kernel upgrade!


ofcouse, you dont need that on CentOS :D

- KB
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[CentOS] samba question

[david chong]

Hi,

I am running Centos5.1, trying to configure samba now. I am quite new
in this area and hope help from the list.

I could not connect to it from a windows xp pc
>From the console, I log in and do a

>smbclient -L localhost -U%

Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Sharename   Type  Comment
-     ---
samba   Disk
IPC$IPC   IPC Service (Samba 3.0.25b-0.el5.4)
Domain=[MYGROUP] OS=[Unix] Server=[Samba 3.0.25b-0.el5.4]

Server   Comment
----
ANTIOCH  Samba 3.0.25b-0.el5.4

WorkgroupMaster
----
MYGROUP  ANTIOCH

Could you pls help.
Thanks

David
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Re: [CentOS] Re: OT: Top Posting - PLEASE STOP THIS POINTLESS POST

[Martyn Drake]

With respect, there are such things as email filters.  I encourage
everybody to learn how to use their own particular MUA's filtering
system.

Secondly, posting a "PLEASE STOP THIS POINTLESS POST" message is
futile in the extreme.  If something is bothering you to the extent
that the moderators need to know about it (and I don't think that this
is such a situation), then you take it to them off list.

Sometimes I think email is just too damn good for some people.

Regards,

Martyn
-- 
Martyn Drake
http://www.drake.org.uk
http://www.mindthegapps.com
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Re: [CentOS] COBOL

[Ian Blackwell]

Michael wrote:
Just curious, maybe some old timers could help me out. I am working 
with a company that is migrating 20 years of Mainframe Software 
Development to Unix, HPUX. How much harder would it be to go to Linux, 
Centos Linux?
I think you would be better served looking for a flavour of COBOL that 
provides portability via platform independence, rather than choosing 
your platform and then a COBOL to suit.  We use ACUCOBOL from Acucorp 
for this reason.  Our code, once compiled, will run on many different 
platforms without us doing anything.  Acucorp had the write once run 
everywhere idea well before Java did.
Also, anyone have any experience with Fujitsu Cobol on Centos? The 
Fujitsu people only support Red Hat, and said I'd be on my own with 
Centos. In other words if it works, then I don't care about Fujitsu 
support.


I know some of you are thinking, did someone say "COBOL"? Nobody uses 
COBOL anymore! If so, let me say "You are wrong". Many large 
corporations are taking their old business logic that was written in 
COBOL decades ago, and moving it to new modern platforms, like Linux. 
Programatically giving these applications a GUI face-lift, while 
maintaining their original business logic. I know because many 
companies pay me to do just that. I have a client that wants to use 
Centos Linux with Fujistu Cobol, and Fujitsu says it's gotta be Red 
Hat, any help will much appreciated.
I know COBOL is still out there, and the latest tools for GUI 
development let you build apps that users can't recognise as COBOL 
apps.  Business logic in COBOL is rock solid and won't be replaced 
anytime soon.  With a GUI front-end, why change?


Thanks,



Cheers,

Ian
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