date:20110926

From: Paras pradhan pradhanpa...@gmail.com

 On Fri, Sep 23, 2011 at 3:17 PM, John R Pierce pie...@hogranch.com 
 wrote:
  On 09/23/11 12:33 PM, m.r...@5-cent.us wrote:
  Paras pradhan wrote:
    Number  Start   End     Size   File system  Name
        Flags
      1      17.4kB  134MB   134MB               Microsoft 
 reserved
    partition  msftres
      2      135MB   134GB   134GB  ntfs         Basic data 
 partition
      3      134GB   1100GB  965GB               Basic data 
 partition
  snip
  Looks to me as though someone started to install Windows on top of your
  box. This isn't partition data magically changed - best guess is 
 someone
  started, then stopped, realizing it was the wrong box they were working
  on.
  ay-yup, thats EXACTLY what it looks like.   a NEWER version of Windows
  at that.
 You mean the newer windows will create the partition schema as we are
 seeing it now? And you think its the automatic partitioning by windows
 if somebody has the access to this?

That looks lvery much ike my Windows laptop oem partitioning scheme...
1. The hidden boot partition for a recovery install
2. The main partition (ntfs)
3. The hidden recovery data partition

JD
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Re: [CentOS] disk partitioning: 6.0 install to harddrive using liveCD

From: cen...@trodman.com cen...@trodman.com

 I'm planning to set up a test Centos 6.0 box (has CDROM, but no
 DVD) with these partions:

Why not use the netinstall or minimal CDs...?

JD
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Re: [CentOS] SSH in and my terminal keystrokes are weird.......

On Mon, Sep 26, 2011 at 5:02 AM, Craig White craigwh...@azapple.com wrote:

 Depending on what you are doing, you might also like running freenx on
 the server and using the NX client from www.nomachine.com to have a
 full linux GUI desktop on the Mac - which works pretty well even if
 you just open terminal windows in it.
 
 and I do that too but still Macintosh key bindings get in the way and
 I've had to go with a modified ~/.Xmodmap to approach my expectations.

 Also the screen dimensioning of the No Machine Macintosh client just
 seems not to work at all and I end up with a full screen connection
 despite any attempts at configuration which then requires an arbitrary
 resizing.

Mine seem to open at the previous session size (normally I am
re-connecting to a session originally started from a windows NX
client) but the mac version does permit resizing where windows only
snaps to the specified or available size and can't be changed without
reconnecting.  The only really odd thing I see is that sometimes the
mac window behavior (must click on title bar to focus, etc.) sticks
even when the session is picked up under windows again.

-- 
   Les Mikesell
 lesmikes...@gmail.com
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Re: [CentOS] Problems with Intel Ethernet and module e1000e

From: Volker Poplawski vol...@openbios.org

 I'm facing a serious problem with the e100e kernel module for Intel 
 82574L gigabit nics on Centos 6.

I had pbms with my Intel 1000e too.
Installed elrepo's kmod-e1000e and so far so good...

http://elrepo.org/tiki/kmod-e1000e

JD
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Re: [CentOS] Problems with Intel Ethernet and module e1000e

2011-09-26 Thread Patrick Lists

On 09/23/2011 12:54 PM, Volker Poplawski wrote:
 Hi all,

 I'm facing a serious problem with the e100e kernel module for Intel
 82574L gigabit nics on Centos 6.

I have also had problems with an Intel Gbit nic in a Dell Optiplex 760 
using the e1000 module. If it would come up it would come up at 100Mbit 
speed. Only unplugging the LAN cable en reinserting it in the switch 
would sometimes result in the proper 1Gb speed. After replacing the 3Com 
Gbit switch with a DLink Gbit switch things started to work ok.

As suggested, you could try out the e1000 kernel module form elrepo (if 
it works, good for you) but you may want to look into the switch too.

Regards,
Patrick
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[CentOS] Files being modified in /bin/

For the binary experts.

I have a situation here. Something hideously but continuously is modifying
the /bin/ executables as common as coreutils and net-tools.
I can verify that from md5sum. First thing I checked was 'ls' and it has a
checksum mismatch. So I removed it and reinstalled it. Then I moved the file
somewhere else to cross bisect it.

I did a hexdump on original ls file and the modified file, and there was
some 700 lines of hex code additional in the modified file.
Then I set a cron to check and do md5sum on all system files and after half
an hour, I go a report back. Files modified.

This time when checked the hex dump of newly and earlier modified files,
they were the same. Exact same!

Because rpm and rpmverify also seemed to have been modified so I cannot
trust 'rpm -V' package verification.

Already did lsof and process tracing but to no avail. Does anyone have any
idea how to find that culprit?


-Micky.
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Re: [CentOS] Files being modified in /bin/

2011-09-26 Thread Jeremy Sanders

Micky L Martin wrote:

 Because rpm and rpmverify also seemed to have been modified so I cannot
 trust 'rpm -V' package verification.
 
 Already did lsof and process tracing but to no avail. Does anyone have any
 idea how to find that culprit?

Are you sure it's not prelink that's modifying the files? You can google how 
to disable this.

Boot from a CD to check the checksums or run rpm if you want a clean 
environment.

Jeremy


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Re: [CentOS] Files being modified in /bin/

2011-09-26 Thread Rob Kampen


Jeremy Sanders wrote:

Micky L Martin wrote:

  

Because rpm and rpmverify also seemed to have been modified so I cannot
trust 'rpm -V' package verification.

Already did lsof and process tracing but to no avail. Does anyone have any
idea how to find that culprit?



Are you sure it's not prelink that's modifying the files? You can google how 
to disable this.
  

Any comments or thoughts from the list as to the benefit of prelink?
does the system performance change if this is disabled?
It causes issues with aide also.
Boot from a CD to check the checksums or run rpm if you want a clean 
environment.


Jeremy


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Re: [CentOS] I can't connect to /dev/ttyS0

2011-09-26 Thread Keith Roberts

On Sun, 25 Sep 2011, Michel Donais wrote:

 To: CentOS mailing list centos@centos.org
 From: Michel Donais don...@telupton.com
 Subject: Re: [CentOS] I can't connect to /dev/ttyS0

 You first need to double-check that /dev/ttyS0 is actually
 the correct serial COM port you have the modem connected to.

 Please look under System-Hardware and then click the 16550A-compatible
 COM port in the LH pane.

 Then in the RH pane click on 'Advanced', and find the serial.device string
 or linux.device_file.

 This will be something like:
 linux.device_file  strlist /dev/ttySx where x == 0|1|2|3 serial.device
 strlist /dev/ttySx where x == 0|1|2|3

 Please can you share with us what the reason was for the
 problem, so others with similar problems can be enlighted,
 including myself?

 Well it's a bit ennoying.
 I've done all the given check list and got nearly no answer for a solution.
 So I decided to open the box to see that the serial device connector was
 partly unplug from the mother board; so it was the source of my problem.

 I put it back in palce and it was done.

Ah - Thanks for that Michel - very informative. That's 
probably one of the last tings I would have taken a look at.

So it was actually a hardware problem - not a software one.

I'm Very pleased you were able to identify and fix the 
problem :)

Kind Regards,

Keith Roberts

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Re: [CentOS] Files being modified in /bin/

So apparently prelink was running.
I disabled it in /etc/sysconfig/prelink and ran 'prelink -ua' to undo the
linking.

I just stumbled upon a document (attached) describing how Linux used to have
a.out http://en.wikipedia.org/wiki/A.out and now the ELF.

Though I never knew that prelink actually modifies the files and thought of
it as a cache library or something. Literally modifies!!

So, I assume the problem is solved as ls seems to have reverted back but if
not then it may be an LKM kit :|

On Mon, Sep 26, 2011 at 6:29 AM, Rob Kampen rkam...@kampensonline.comwrote:

Jeremy Sanders wrote:

Micky L Martin wrote:

Because rpm and rpmverify also seemed to have been modified so I cannot
trust 'rpm -V' package verification.

Already did lsof and process tracing but to no avail. Does anyone have
any
idea how to find that culprit?

Are you sure it's not prelink that's modifying the files? You can google
how to disable this.

Any comments or thoughts from the list as to the benefit of prelink?
does the system performance change if this is disabled?
It causes issues with aide also.

Boot from a CD to check the checksums or run rpm if you want a clean
environment.

Jeremy

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Re: [CentOS] This doesn't make sense

2011-09-26 Thread Christopher Chan

On Monday, September 26, 2011 06:40 PM, Lamar Owen wrote:

 If it's not supported it shouldn't be enabled and easily (ab)used.  This is 
 part of the reason you have to add a boot argument to get CentOS to do a 
 version upgrade; it's known to not work properly, and thus is semi-hidden.

Now that's pounding Ubuntu properly. But it will fall on deaf ears. 
Complain on the list and they will tell you that it is YOUR fault 
because you did not read the documentation or bother to google how to 
dist-upgrade before doing 'apt-get dist-upgrade'. With such devs, 
where's the 'community' or who is the 'community'?

If that's what some folks here want over too tired to communicate devs, 
be our guest eh Lamar?
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Re: [CentOS] Problems with Intel Ethernet and module e1000e

2011-09-26 Thread Hakan Koseoglu

On 26 September 2011 13:54, Patrick Lists centos-l...@puzzled.xs4all.nl wrote:
 On 09/23/2011 12:54 PM, Volker Poplawski wrote:
 Hi all,

 I'm facing a serious problem with the e100e kernel module for Intel
 82574L gigabit nics on Centos 6.

 I have also had problems with an Intel Gbit nic in a Dell Optiplex 760
 using the e1000 module. If it would come up it would come up at 100Mbit
 speed. Only unplugging the LAN cable en reinserting it in the switch
 would sometimes result in the proper 1Gb speed. After replacing the 3Com
 Gbit switch with a DLink Gbit switch things started to work ok.
The fact that once you had changed to an other switch it had started
to work points the blame to the 3Com switch. Funnily enough, about 10
years ago I would get the same kind of issues with 3Com network cards
and switches talking to each other (on 100Mbit!). Disabling the
auto-handshake and forcing the link to a particular speed would fix
the problem.

Try forcing the link speed with ethtool or similar utilities.
-- 
Hakan (m1fcj) - http://www.hititgunesi.org
What part of 'ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn'
don't you understand?
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Re: [CentOS] Problems with Intel Ethernet and module e1000e

Patrick Lists wrote:
 On 09/23/2011 12:54 PM, Volker Poplawski wrote:
 Hi all,

 I'm facing a serious problem with the e100e kernel module for Intel
 82574L gigabit nics on Centos 6.

 I have also had problems with an Intel Gbit nic in a Dell Optiplex 760
 using the e1000 module. If it would come up it would come up at 100Mbit
 speed. Only unplugging the LAN cable en reinserting it in the switch
 would sometimes result in the proper 1Gb speed. After replacing the 3Com
 Gbit switch with a DLink Gbit switch things started to work ok.

 As suggested, you could try out the e1000 kernel module form elrepo (if
 it works, good for you) but you may want to look into the switch too.

Hmmm, we had a problem like that, but in our case, it was the NIC. If
someone's already asked this - I didn't read the list over the weekend -
ignore the request, but if not, while it's not working, what's the o/p of
ethtool ethwhatever

mark

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Re: [CentOS] Problems with Intel Ethernet and module e1000e

In our case, it was the driver.
Google e1000e-1.6.2.tar.gz


On Mon, Sep 26, 2011 at 6:56 AM, m.r...@5-cent.us wrote:

 Patrick Lists wrote:
  On 09/23/2011 12:54 PM, Volker Poplawski wrote:
  Hi all,
 
  I'm facing a serious problem with the e100e kernel module for Intel
  82574L gigabit nics on Centos 6.
 
  I have also had problems with an Intel Gbit nic in a Dell Optiplex 760
  using the e1000 module. If it would come up it would come up at 100Mbit
  speed. Only unplugging the LAN cable en reinserting it in the switch
  would sometimes result in the proper 1Gb speed. After replacing the 3Com
  Gbit switch with a DLink Gbit switch things started to work ok.
 
  As suggested, you could try out the e1000 kernel module form elrepo (if
  it works, good for you) but you may want to look into the switch too.

 Hmmm, we had a problem like that, but in our case, it was the NIC. If
 someone's already asked this - I didn't read the list over the weekend -
 ignore the request, but if not, while it's not working, what's the o/p of
 ethtool ethwhatever

mark

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Re: [CentOS] Files being modified in /bin/

Jeremy Sanders wrote:
 Micky L Martin wrote:

 Because rpm and rpmverify also seemed to have been modified so I cannot
 trust 'rpm -V' package verification.

 Already did lsof and process tracing but to no avail. Does anyone have
 any idea how to find that culprit?

 Are you sure it's not prelink that's modifying the files? You can google
 how to disable this.

 Boot from a CD to check the checksums or run rpm if you want a clean
 environment.

Don't really know about prelink, but I strongly agree with the last
suggestion: boot from a CD, or USB key, or something *other* than your
hard drive - your comments strongly suggest that you've been infected. You
*do* have backups of your configuration and data (and home directories,
etc)? If so, you might want to do a reinstall without formatting... and
then, and only then, rerun grub-install.

  mark

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Re: [CentOS] Hacking Issue

2011-09-26 Thread Keith Roberts

On Mon, 26 Sep 2011, Jennifer Botten wrote:

 To: centos@centos.org
 From: Jennifer Botten jenni...@etech.co.za
 Subject: [CentOS] Hacking Issue

 Hi,

 I am having an issue with someone accessing our server via a SIP/VOIP
 connection. I have changed my iptables rules to drop all UDP traffic from
 and too this IP address, but this traffic seems to still run through my
 server. These are the iptables rules that I current have on the server.

 -A INPUT -i eth0 -s 209.61.231.42 -p udp -j DROP

 -A INPUT -i eth0 -d 209.61.231.42 -p udp -j DROP

You might find it helps to analyse this traffic with a 
network analyser, like Wireshark. That would allow you to 
see in almost real time what is happening on the line.

Kind Regards,

Keith Roberts

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Re: [CentOS] Files being modified in /bin/

No Jeremy, reformatting is nonsensical, like doing anything without finding
cause of the problem is!
You have to check out prelink if you still don't know about it, it can be
something amazing or ridiculous.
In my case, all evidence points to prelink!


To the guys using prelink and having experience with it.
So I did a further study and found out that it possesses some issues.

First it doesn't randomly address the data making applications prone to perl
security attacks. Secondly, it way of keeping track of address maps is
awkward which becomes a few weeks older till it gets updated.
Thirdly, its 'a very old styled' application. It was written back in 90's
when computers were slow to make them fast. But with today's extraneous
processing age, its effects are long vanishing.
Lastly, I see a lot of people remove it in post installation process. Many
claim it sucks as it creates more problems than what it is supposed to do.

As I occasionally do a minimal install so I am not sure how it got installed
on this very box. Seems like 'yum update' or the kickstart did it.
But anyhow I disabled it already and I am gonna benchmark the system for
performance; needless to day, it will be removed from my desk.

It did pop like a jack in a box :P!








On Mon, Sep 26, 2011 at 7:11 AM, m.r...@5-cent.us wrote:

 Jeremy Sanders wrote:
  Micky L Martin wrote:
 
  Because rpm and rpmverify also seemed to have been modified so I cannot
  trust 'rpm -V' package verification.
 
  Already did lsof and process tracing but to no avail. Does anyone have
  any idea how to find that culprit?
 
  Are you sure it's not prelink that's modifying the files? You can google
  how to disable this.
 
  Boot from a CD to check the checksums or run rpm if you want a clean
  environment.

 Don't really know about prelink, but I strongly agree with the last
 suggestion: boot from a CD, or USB key, or something *other* than your
 hard drive - your comments strongly suggest that you've been infected. You
 *do* have backups of your configuration and data (and home directories,
 etc)? If so, you might want to do a reinstall without formatting... and
 then, and only then, rerun grub-install.

  mark

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Re: [CentOS] Hacking Issue

I would use an '-I' instead of '-A' if its a case of blocking an intruder.

You can use tcpdump and 'ss -l' as well.

Check out the application logs, try to see what's the intruder is up to!




On Mon, Sep 26, 2011 at 7:14 AM, Keith Roberts ke...@karsites.net wrote:

 On Mon, 26 Sep 2011, Jennifer Botten wrote:

  To: centos@centos.org
  From: Jennifer Botten jenni...@etech.co.za
  Subject: [CentOS] Hacking Issue
 
  Hi,
 
 
 
  I am having an issue with someone accessing our server via a SIP/VOIP
  connection. I have changed my iptables rules to drop all UDP traffic from
  and too this IP address, but this traffic seems to still run through my
  server. These are the iptables rules that I current have on the server.
 
  -A INPUT -i eth0 -s 209.61.231.42 -p udp -j DROP
 
  -A INPUT -i eth0 -d 209.61.231.42 -p udp -j DROP

 You might find it helps to analyse this traffic with a
 network analyser, like Wireshark. That would allow you to
 see in almost real time what is happening on the line.

 Kind Regards,

 Keith Roberts

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Re: [CentOS] data recovery

2011-09-26 Thread Paras pradhan

Hi Lamar,

On Mon, Sep 26, 2011 at 5:53 AM, Lamar Owen lo...@pari.edu wrote:
 On Friday, September 23, 2011 04:29:39 PM Paras pradhan wrote:
 This is a SAN drive mounted. I have checked with my storage
 administrator if this has been re mapped or any similar events and he
 verified that nothing has happened...(I trust him)

 May I ask what sort of SAN?  Fibre Channel or iSCSI?  Are there any access 
 controls (such as EMC's Access Logix or zoning in the switch) in place to 
 prevent multiple initiators connecting to a particular LUN?

Its a Hitachi OpenV fibre channel SAN (4Gbps HBA). My storage admin
checked if this LUN can be accessible by others and he found no other
hosts have access to it.


 SAN attachment mildly complicates things; I've seen some odd LUN reshuffling 
 before, but it was an older FLARE than what I'm currently running on our 
 Clariions and it was something that was a corner case but was fixed in a 
 later NDU, and it had to do with Access Logix (I don't remember the Primus 
 number right off, as it has been several years now).

reshuffling here means automatically changing disk's geometry as I am
having an issue? It would be interesting to know if this can happen.


 If the SAN OS keeps event logs you could try to correlate with the event; 
 beyond that you may just have to do some testing.

 As you say, someone somewhere had to do a repartition; the hard part is 
 determining where the error is.  Good luck.


Here are some new additional info :

My colleague mounted this LUN to a different host and we found the
same partitions over there too which is normal.

I dd a 1st device to a file and opened the image file with bvi and
found some hosts name, VG name etc etc. in there. Then he ran a
recovery tool (R studio) in all three devices and was able to recover
most of this data.
So my question is: if the LUN has been re partitioned for ex: say to
install windows , why am i seeing our data in these newly created
partitions? Is it possible to see data in a reapportioned drive?

Thanks
Paras.


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Re: [CentOS] data recovery

Paras pradhan wrote:
snip
 Here are some new additional info :

 My colleague mounted this LUN to a different host and we found the
 same partitions over there too which is normal.

 I dd a 1st device to a file and opened the image file with bvi and
 found some hosts name, VG name etc etc. in there. Then he ran a
 recovery tool (R studio) in all three devices and was able to recover
 most of this data.
 So my question is: if the LUN has been re partitioned for ex: say to
 install windows , why am i seeing our data in these newly created
 partitions? Is it possible to see data in a reapportioned drive?

Partitioning doesn't overwrite the disk. I'm not familiar with R studio,
so I don't know if you're saying that whole directories reappeared, or
whether it found and relinked the files, and added them to the directory
structure.

mark

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Re: [CentOS] Hacking Issue

2011-09-26 Thread Theo Band

On 09/26/2011 01:02 PM, Jennifer Botten wrote:

 Hi,

  

 I am having an issue with someone accessing our server via a SIP/VOIP
 connection. I have changed my iptables rules to drop all UDP traffic
 from and too this IP address, but this traffic seems to still run
 through my server. These are the iptables rules that I current have on
 the server.

 -A INPUT -i eth0 -s 209.61.231.42 -p udp -j DROP

 -A INPUT -i eth0 -d 209.61.231.42 -p udp -j DROP


If your SIP server needs to be accessed from any IP address, consider to
use fail2ban. Easy to setup and it will block access to your SIP server
after so many false attempts.
I started using fail2ban to prevent the logs (Asterisk) from cluttering
failed logons.

Theo
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[CentOS] Firewalling outbound connections...

Hi,

would anyone know a soft to firewall outbound connections (applications phoning 
home, etc...).
It would detect an unknown (to him) app that tries to connect to the outside 
world and it would popup a allow/deny request...AppArmor might be a bit 
overkill...
Anyone have any experience with Systrace, TuxGuardian or Zorp GPL...?


Thx,
JD

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Re: [CentOS] Finding i/o bottleneck

2011-09-26 Thread Nicolas Ross

 In the meen time, I'd still like to find a tool to know what files are
 requeted to the filesystem and what ones are being waited for...


 atop and iotop are tools that do that...when the kernel has been
 appropriately patched or the kernel is of an appropriate version...

I did used these utilities, while it can help see what processes are 
generating IO, it doesn't show what files on the file system are being asked 
or waited for.

Basicly, what I'm searching is an equivalent for fs_usage on Mac OS X, or 
tcpdump, but on a bloc device...

Thanks, 

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[CentOS] External Dial-up Modem

2011-09-26 Thread Graham Johnston

I am having an issue with Centos 6 and an external USRobotics modem.  We
use the modem as part of a last resort SMS paging system.

 

Across multiple Dell servers, different models, I can't not get the
modem to respond to simple AT commands while using Minicom.  At the same
time if I connect the server to a console port on a switch I can
successfully access the switches serial console.  So I know the serial
port itself is working.  The modem still works fine if connected to a
Centos 5 server.

 

Any thoughts?

 

Graham Johnston

Network Planner
Westman Communications Group
204.717.2829

johnst...@westmancom.com mailto:johnst...@westmancom.com 

 

P think green; don't print this email.

 

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Re: [CentOS] this is strange and dark

2011-09-26 Thread Alain Péan

Le 26/09/2011 01:44, Johnny Hughes a écrit :
 If he is complaining about 6.0CR ... we are getting close to releasing
 many of those packages.  Should be a bunch in the next 2 days.  Then the
 rest of the 6.1 updates to date couple of days after that.

 Of course, that assumes no issues.

Hi Johnny,

Thanks for the information. I understand that you want to stay cautious 
concerning possible problems that may arise.
But I am confident, that, if you say this, you think there is a good 
hope to achieve this goal.

Alain

-- 
==
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Administrateur Système/Réseau
Laboratoire de Physique des Plasmas - UMR 7648
Observatoire de Saint-Maur
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Re: [CentOS] Hacking Issue

Theo Band wrote:
 On 09/26/2011 01:02 PM, Jennifer Botten wrote:

 I am having an issue with someone accessing our server via a SIP/VOIP
 connection. I have changed my iptables rules to drop all UDP traffic
 from and too this IP address, but this traffic seems to still run
 through my server. These are the iptables rules that I current have on
 the server.

 -A INPUT -i eth0 -s 209.61.231.42 -p udp -j DROP

 -A INPUT -i eth0 -d 209.61.231.42 -p udp -j DROP


 If your SIP server needs to be accessed from any IP address, consider to
 use fail2ban. Easy to setup and it will block access to your SIP server
 after so many false attempts.
 I started using fail2ban to prevent the logs (Asterisk) from cluttering
 failed logons.

Let me chime in: *yes* to fail2ban. We use it here at work, and it works,
and is very good. Not too hard to configure for basic usage, either, but
very extensible.

 mark

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Re: [CentOS] External Dial-up Modem

2011-09-26 Thread Bill Campbell

On Mon, Sep 26, 2011, Graham Johnston wrote:
I am having an issue with Centos 6 and an external USRobotics modem.  We
use the modem as part of a last resort SMS paging system.

Across multiple Dell servers, different models, I can't not get the
modem to respond to simple AT commands while using Minicom.  At the same
time if I connect the server to a console port on a switch I can
successfully access the switches serial console.  So I know the serial
port itself is working.  The modem still works fine if connected to a
Centos 5 server.

Any thoughts?

Which device are you using for the serial connection.  It should be
/dev/ttyS0 or similar to provide the correct modem control signals.  The
modem probably won't respond unless the DTR (Data Terminal Ready) line is
up.  It's been quite a while since I had to look at the modems on our
system that runs HylaFAX and dialup connections,

Bill
-- 
INTERNET:   b...@celestial.com  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
Voice:  (206) 236-1676  Mercer Island, WA 98040-0820
Fax:(206) 232-9186  Skype: jwccsllc (206) 855-5792

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in our own way, so long as we do not attempt to deprive others of theirs,
or impede their efforts to obtain it. -- John Stuart Mill, 1859
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Re: [CentOS] External Dial-up Modem

Graham Johnston wrote:
 I am having an issue with Centos 6 and an external USRobotics modem.  We
 use the modem as part of a last resort SMS paging system.

 Across multiple Dell servers, different models, I can't not get the
 modem to respond to simple AT commands while using Minicom.  At the same
 time if I connect the server to a console port on a switch I can
 successfully access the switches serial console.  So I know the serial
 port itself is working.  The modem still works fine if connected to a
 Centos 5 server.

I'd think that there may be some default settings in minicom that need to
be different for that specific modem.

   mark

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Re: [CentOS] External Dial-up Modem

On Mon, Sep 26, 2011 at 11:20 AM, Graham Johnston
johnst...@westmancom.com wrote:
 I am having an issue with Centos 6 and an external USRobotics modem.  We
 use the modem as part of a last resort SMS paging system.



 Across multiple Dell servers, different models, I can't not get the
 modem to respond to simple AT commands while using Minicom.  At the same
 time if I connect the server to a console port on a switch I can
 successfully access the switches serial console.  So I know the serial
 port itself is working.  The modem still works fine if connected to a
 Centos 5 server.


I normally use ckermit (available from epel) for serial port access
because you can 'set carrier off' before connect so it doesn't hang
waiting for the carrier detect line to come up and because it has a
scripting language that works the same over tcp (handy if you move
your modems to a terminal server).  I assume you know that the cable
needs to be different for modem and console connections.  You might
also loop DTR to DCD, but then you won't know when the connections
drop.

-- 
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lesmikes...@gmail.com
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Re: [CentOS] Finding i/o bottleneck

On Mon, Sep 26, 2011 at 11:15 AM, Nicolas Ross
rossnick-li...@cybercat.ca wrote:
 In the meen time, I'd still like to find a tool to know what files are
 requeted to the filesystem and what ones are being waited for...


 atop and iotop are tools that do that...when the kernel has been
 appropriately patched or the kernel is of an appropriate version...

 I did used these utilities, while it can help see what processes are
 generating IO, it doesn't show what files on the file system are being asked
 or waited for.

 Basicly, what I'm searching is an equivalent for fs_usage on Mac OS X, or
 tcpdump, but on a bloc device...

Not sure what those do, but lsof should show what files are open, and
'strace -p process_id' would show the system calls issued by a
process.

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lesmikes...@gmail.com
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Re: [CentOS] External Dial-up Modem

2011-09-26 Thread Graham Johnston

yeah, ttyS0.

Graham Johnston
Network Planner
Westman Communications Group
204.717.2829
johnst...@westmancom.com

think green; don't print this email.


-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of 
Bill Campbell
Sent: Monday, September 26, 2011 12:14 PM
To: centos@centos.org
Subject: Re: [CentOS] External Dial-up Modem

On Mon, Sep 26, 2011, Graham Johnston wrote:
I am having an issue with Centos 6 and an external USRobotics modem.  We
use the modem as part of a last resort SMS paging system.

Across multiple Dell servers, different models, I can't not get the
modem to respond to simple AT commands while using Minicom.  At the same
time if I connect the server to a console port on a switch I can
successfully access the switches serial console.  So I know the serial
port itself is working.  The modem still works fine if connected to a
Centos 5 server.

Any thoughts?

Which device are you using for the serial connection.  It should be
/dev/ttyS0 or similar to provide the correct modem control signals.  The
modem probably won't respond unless the DTR (Data Terminal Ready) line is
up.  It's been quite a while since I had to look at the modems on our
system that runs HylaFAX and dialup connections,

Bill
-- 
INTERNET:   b...@celestial.com  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
Voice:  (206) 236-1676  Mercer Island, WA 98040-0820
Fax:(206) 232-9186  Skype: jwccsllc (206) 855-5792

The only freedom which deserves the name, is that of pursuing our own good
in our own way, so long as we do not attempt to deprive others of theirs,
or impede their efforts to obtain it. -- John Stuart Mill, 1859
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Re: [CentOS] Finding i/o bottleneck

2011-09-26 Thread Nicolas Ross

 I did used these utilities, while it can help see what processes are
 generating IO, it doesn't show what files on the file system are being 
 asked
 or waited for.

 Basicly, what I'm searching is an equivalent for fs_usage on Mac OS X, or
 tcpdump, but on a bloc device...

 Not sure what those do, but lsof should show what files are open, and
 'strace -p process_id' would show the system calls issued by a
 process.

Thanks, that might be usefull. I'ill just have to find a way to strace 
multiple process at once and find the usefull info among that load of 
data...

Nicolas 

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Re: [CentOS] Finding i/o bottleneck

On Mon, Sep 26, 2011 at 1:47 PM, Nicolas Ross
rossnick-li...@cybercat.ca wrote:
 I did used these utilities, while it can help see what processes are
 generating IO, it doesn't show what files on the file system are being
 asked
 or waited for.

 Basicly, what I'm searching is an equivalent for fs_usage on Mac OS X, or
 tcpdump, but on a bloc device...

 Not sure what those do, but lsof should show what files are open, and
 'strace -p process_id' would show the system calls issued by a
 process.

 Thanks, that might be usefull. I'ill just have to find a way to strace
 multiple process at once and find the usefull info among that load of
 data...

Note that if what is really happening is that different processes are
frequently accessing the same disk in different locations (a fairly
likely scenario) the time will be mostly taken by the head seeks in
between and may be hard to pin down.

-- 
  Les Mikesell
lesmikes...@gmail.com
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Re: [CentOS] Files being modified in /bin/

2011-09-26 Thread Jeremy Sanders

Micky L Martin wrote:

 No Jeremy, reformatting is nonsensical, like doing anything without
 finding cause of the problem is!
 You have to check out prelink if you still don't know about it, it can be
 something amazing or ridiculous.
 In my case, all evidence points to prelink!

Think you got the name wrong - I'm Jeremy. You're replying to Mark. I agree 
reformatting is premature.

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Re: [CentOS] Finding i/o bottleneck

2011-09-26 Thread Nicolas Ross

 Not sure what those do, but lsof should show what files are open, and
 'strace -p process_id' would show the system calls issued by a
 process.

 Thanks, that might be usefull. I'ill just have to find a way to strace
 multiple process at once and find the usefull info among that load of
 data...

 Note that if what is really happening is that different processes are
 frequently accessing the same disk in different locations (a fairly
 likely scenario) the time will be mostly taken by the head seeks in
 between and may be hard to pin down.

I found the -f option to strace is able to attach to the forked child of a 
parent process, so I will be using that in my debuging in conjunction 
witgh -e to filter out only the calls I want to see...

But indeed, that might be hard to find. In one case, I want to see what 
files are opened / accessed on a gfs2 volume over a fiber channel link to a 
raid-1 array, and the controler is supposed to intelligent enough to 
distribute the read access across the 2 disks. And in the other case, it's 
an ssd, so seek time should be 0. 

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Re: [CentOS] Files being modified in /bin/

On Mon, Sep 26, 2011 at 9:27 AM, Micky L Martin mickylmar...@gmail.com wrote:
 No Jeremy, reformatting is nonsensical, like doing anything without finding
 cause of the problem is!
 You have to check out prelink if you still don't know about it, it can be
 something amazing or ridiculous.
 In my case, all evidence points to prelink!

rpm -Va should show you all the files that have changed since being
installed (via rpm or yum...).  And it should know about prelink.

-- 
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lesmikes...@gmail.com
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[CentOS] Hard I/O lockup with EL6

I'm trying to figure out why 2 machines have a hard I/O lock on the HDD when 
running EL6. 

I have 4 identical machines, all were stable with EL5. 2 work great with EL6, 
2 do not. I've checked momtherboard BIOS versions and settings, SAS controller 
BIOS versions and settings, they are the same between the working and non-
working systems. 

When booting a non-working system, it boots straight up to the boot prompt 
(runlevel 3) without issue, and everything works fine. When the machine sits 
idle for a period of time (ranging from 15 minutes or so and up) the HDD 
becomes unreadable/unwritable and the system is useless for any purpose and 
must be hard restarted with a full power cycle - it won't even shut down. 

Since nothing is logged, I've had precious little information to diagnose 
with. After several attempts to find out what's going on, I find the following 
emitted to the screen: 

mpt2sas0: diag reset: FAILED 
mpt2sas0: diag reset: FAILED 
mpt2sas0: diag reset: FAILED 
end_request: I/O error, dev sda, sector 226972349
Buffer I/O error, device sda5, logical block 2719747
sd 0:0:0:0rejecting I/O to offline device 
sd 0:0:0:0rejecting I/O to offline device 
sd 0:0:0:0rejecting I/O to offline device 

This is NOT due to a faulty HDD: I've tried new hard disks, SATA/SAS, I've 
swapped hard disks with an identical working unit and verified that the working 
unit remains working and the failing unit continues to fail. I've reformatted 
and re-installed EL6 numerous times with consistent results. 

Googling this error returned very little useful information: where should I go 
now? Below, please find outputs of dmesg and lspci. I've compared outputs of 
dmesg between working and nonworking systems, the output of anything with 
mpt at the beginning is identical except for different IRQ ports. 

Dump of dmesg: 
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.32-71.29.1.el6.x86_64 (mockbu...@c6b5.bsys.dev.centos.org) 
(gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) ) #1 SMP Mon Jun 27 
19:49:27 BST 2011
Command line: ro root=UUID=3653eebb-f6b7-4e90-8365-26f4eccaa960 rd_NO_LUKS 
rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 
KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet acpi=off
KERNEL supported cpus:
  Intel GenuineIntel
  AMD AuthenticAMD
  Centaur CentaurHauls
BIOS-provided physical RAM map:
 BIOS-e820:  - 0009dc00 (usable)
 BIOS-e820: 0009dc00 - 000a (reserved)
 BIOS-e820: 000e - 0010 (reserved)
 BIOS-e820: 0010 - bf7d (usable)
 BIOS-e820: bf7d - bf7e (reserved)
 BIOS-e820: bf7ed000 - c000 (reserved)
 BIOS-e820: e000 - f000 (reserved)
 BIOS-e820: fed2 - fed4 (reserved)
 BIOS-e820: fee0 - fee01000 (reserved)
 BIOS-e820: 0001 - 00044000 (usable)
DMI present.
AMI BIOS detected: BIOS may corrupt low RAM, working around it.
e820 update range:  - 0001 (usable) == (reserved)
e820 update range:  - 1000 (usable) == (reserved)
e820 remove range: 000a - 0010 (usable)
last_pfn = 0x44 max_arch_pfn = 0x4
MTRR default type: uncachable
MTRR fixed ranges enabled:
  0-9 write-back
  A-B uncachable
  C-C write-protect
  D-D uncachable
  E-E3FFF write-protect
  E4000-E7FFF write-through
  E8000-EBFFF write-protect
  EC000-E write-through
  F-F write-protect
MTRR variable ranges enabled:
  0 base 0 mask C write-back
  1 base 4 mask FC000 write-back
  2 base 0C000 mask FC000 uncachable
  3 disabled
  4 disabled
  5 disabled
  6 disabled
  7 disabled
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
original variable MTRRs
reg 0, base: 0GB, range: 16GB, type WB
reg 1, base: 16GB, range: 1GB, type WB
reg 2, base: 3GB, range: 1GB, type UC
total RAM covered: 16384M
Found optimal setting for mtrr clean up
 gran_size: 64K chunk_size: 64K num_reg: 5  lose cover RAM: 
0G
New variable MTRRs
reg 0, base: 0GB, range: 2GB, type WB
reg 1, base: 2GB, range: 1GB, type WB
reg 2, base: 4GB, range: 4GB, type WB
reg 3, base: 8GB, range: 8GB, type WB
reg 4, base: 16GB, range: 1GB, type WB
e820 update range: c000 - 0001 (usable) == (reserved)
last_pfn = 0xbf7d0 max_arch_pfn = 0x4
initial memory mapped : 0 - 2000
init_memory_mapping: -bf7d
 00 - 00bf60 page 2M
 00bf60 - 00bf7d page 4k
kernel direct mapping tables up to bf7d @ 1-15000
init_memory_mapping: 0001-00044000
 01 - 044000 page 2M
kernel direct mapping tables up to 44000 @ 13000-25000
RAMDISK: 37515000 - 37fefb62
No NUMA configuration found
Faking a node at

Re: [CentOS] Finding i/o bottleneck

On Mon, Sep 26, 2011 at 2:02 PM, Nicolas Ross
rossnick-li...@cybercat.ca wrote:
 Not sure what those do, but lsof should show what files are open, and
 'strace -p process_id' would show the system calls issued by a
 process.

 Thanks, that might be usefull. I'ill just have to find a way to strace
 multiple process at once and find the usefull info among that load of
 data...

 Note that if what is really happening is that different processes are
 frequently accessing the same disk in different locations (a fairly
 likely scenario) the time will be mostly taken by the head seeks in
 between and may be hard to pin down.

 I found the -f option to strace is able to attach to the forked child of a
 parent process, so I will be using that in my debuging in conjunction
 witgh -e to filter out only the calls I want to see...

 But indeed, that might be hard to find. In one case, I want to see what
 files are opened / accessed on a gfs2 volume over a fiber channel link to a
 raid-1 array, and the controler is supposed to intelligent enough to
 distribute the read access across the 2 disks. And in the other case, it's
 an ssd, so seek time should be 0.

Not sure how gfs2 deals with client caching, but in other scenarios
it's probably easier to just throw a lot of ram in the system and let
the filesystem cache do its job.  You still have to deal with
applications that need to fsync(), though.

-- 
  Les Mikesell
lesmikes...@gmail.com
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Re: [CentOS] Firewalling outbound connections...

2011-09-26 Thread John R Pierce

On 09/26/11 9:15 AM, John Doe wrote:
 Hi,

 would anyone know a soft to firewall outbound connections (applications 
 phoning home, etc...).
 It would detect an unknown (to him) app that tries to connect to the outside 
 world and it would popup a allow/deny request...AppArmor might be a bit 
 overkill...
 Anyone have any experience with Systrace, TuxGuardian or Zorp GPL...?

properly configured selinux would prevent any unauthorized applications 
from making network connections, but I dunno anything about popups, my 
linux systems all run headless.





-- 
john r pierceN 37, W 122
santa cruz ca mid-left coast

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Re: [CentOS] Files being modified in /bin/

Jeremy Sanders wrote:
 Micky L Martin wrote:

 No Jeremy, reformatting is nonsensical, like doing anything without
 finding cause of the problem is!
 You have to check out prelink if you still don't know about it, it can
 be something amazing or ridiculous.
 In my case, all evidence points to prelink!

 Think you got the name wrong - I'm Jeremy. You're replying to Mark. I
 agree reformatting is premature.

Oh, I was *not* recommending reformatting; you can install over, without
reformatting, though it always says that it's not recommended.

  mark

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Re: [CentOS] Hard I/O lockup with EL6

Benjamin Smith wrote:
 I'm trying to figure out why 2 machines have a hard I/O lock on the HDD
 when
 running EL6.

 I have 4 identical machines, all were stable with EL5. 2 work great with
 EL6, 2 do not. I've checked momtherboard BIOS versions and settings, SAS
 controller BIOS versions and settings, they are the same between the
 working and non-working systems.

 When booting a non-working system, it boots straight up to the boot prompt
 (runlevel 3) without issue, and everything works fine. When the machine
 sits idle for a period of time (ranging from 15 minutes or so and up) the
 HDD becomes unreadable/unwritable and the system is useless for any
 purpose and must be hard restarted with a full power cycle - it won't
 even shut down.
snip
Not quite grasping at straws here, but a) have you checked
/var/log/message for memory or drive errors? Maybe memtest86? b) diffed
dmesg between working and dying machines?

One more thing: should we assume you were trying to do things, when they
die, from the console? I ask because I note that you're using the e1000e
driver, which was just the subject of a thread here.

 mark

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Re: [CentOS] Hard I/O lockup with EL6

On Monday, September 26, 2011 12:36:19 PM m.r...@5-cent.us wrote:
 a) have you checked
 /var/log/message for memory or drive errors? 

Looked through the logs, there's *nothing* I can find that's out of sorts. When 
the IO problem happens, nothing can be written. 

 Maybe memtest86? 

I replaced all the RAM from working/non-working machines. In several cases 
where replacing RAM resolved the issue,  memtest didn't indicate any problems, 
so I'm not inclined to trust it. 

 b) diffed
 dmesg between working and dying machines?

Other than the IRQ difference noted earlier, visual scan revealed no 
differences 
involving mpt2. 

 
 One more thing: should we assume you were trying to do things, when they
 die, from the console? I ask because I note that you're using the e1000e
 driver, which was just the subject of a thread here.

I'm familiar with the stale EL6 e1000e driver. I've been using one included by 
yum from elrepo. Manually downloaded RPM so that ethernet works before doing a 
yum -y update. I've been assuming this was unrelated. 

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Re: [CentOS] Hard I/O lockup with EL6

2011-09-26 Thread Brian McKerr

Have you checked the cables you are using ?


On Tue, Sep 27, 2011 at 6:09 AM, Benjamin Smith li...@benjamindsmith.comwrote:

 On Monday, September 26, 2011 12:36:19 PM m.r...@5-cent.us wrote:
  a) have you checked
  /var/log/message for memory or drive errors?

 Looked through the logs, there's *nothing* I can find that's out of sorts.
 When
 the IO problem happens, nothing can be written.

  Maybe memtest86?

 I replaced all the RAM from working/non-working machines. In several cases
 where replacing RAM resolved the issue,  memtest didn't indicate any
 problems,
 so I'm not inclined to trust it.

  b) diffed
  dmesg between working and dying machines?

 Other than the IRQ difference noted earlier, visual scan revealed no
 differences
 involving mpt2.

 
  One more thing: should we assume you were trying to do things, when they
  die, from the console? I ask because I note that you're using the e1000e
  driver, which was just the subject of a thread here.

 I'm familiar with the stale EL6 e1000e driver. I've been using one included
 by
 yum from elrepo. Manually downloaded RPM so that ethernet works before
 doing a
 yum -y update. I've been assuming this was unrelated.

 --
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 dangerous content by MailScanner, and is
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Re: [CentOS] Finding i/o bottleneck

2011-09-26 Thread Dennis Jacobfeuerborn

On 09/26/2011 09:02 PM, Nicolas Ross wrote:
 Not sure what those do, but lsof should show what files are open, and
 'strace -p process_id' would show the system calls issued by a
 process.

 Thanks, that might be usefull. I'ill just have to find a way to strace
 multiple process at once and find the usefull info among that load of
 data...

 Note that if what is really happening is that different processes are
 frequently accessing the same disk in different locations (a fairly
 likely scenario) the time will be mostly taken by the head seeks in
 between and may be hard to pin down.

 I found the -f option to strace is able to attach to the forked child of a
 parent process, so I will be using that in my debuging in conjunction
 witgh -e to filter out only the calls I want to see...

 But indeed, that might be hard to find. In one case, I want to see what
 files are opened / accessed on a gfs2 volume over a fiber channel link to a
 raid-1 array, and the controler is supposed to intelligent enough to
 distribute the read access across the 2 disks. And in the other case, it's
 an ssd, so seek time should be 0.

You could try systemtap:
http://sourceware.org/systemtap/examples/

In your case this script could be useful:
http://sourceware.org/systemtap/examples/io/iotime.stp

The script watches each open, close, read, and write syscalls on the 
system. For each file the scripts observes opened it accumulates the amount 
of wall clock time spent in read and write operations and the number of 
bytes read and written. When a file is closed the script prints out a pair 
of lines for the file. Both lines begin with a timestamp in microseconds, 
the PID number, and the executable name in parentheses. The first line with 
the access keyword lists the file name, the attempted number of bytes for 
the read and write operations. The second line with the iotime keyword 
list the file name and the number of microseconds accumulated in the read 
and write syscalls.

Regards,
   Dennis
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Re: [CentOS] Hard I/O lockup with EL6

On Monday, September 26, 2011 02:00:52 PM Brian McKerr wrote:
 Have you checked the cables you are using ?

There are none - it's a front-loaded hot-swap rackmount. The systems are 
stable under EL5. 

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Re: [CentOS] Hard I/O lockup with EL6

On Monday, September 26, 2011 02:42:18 PM Devin Reade wrote:
 --On Monday, September 26, 2011 12:11:47 PM -0700 Benjamin Smith
 Unfortunately in trying to use C6 on the old machine I wound up with
 far too many changed variables to figure out where the problem was.
 Despite that, my gut tells me that it's not a hardware problem.

Thanks for the feedback. Unfortunately, these aren't ancient 686 systems, they 
are 1-ish year old 8-core Intel Xeons with 32 GB of ECC RAM apiece. I can't 
justify replacing them, especially since two of the four are happily 
deliverying gorgeous performance! 


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Re: [CentOS] Hard I/O lockup with EL6

2011-09-26 Thread Scott Silva

on 9/26/2011 3:13 PM Benjamin Smith spake the following:
 On Monday, September 26, 2011 02:42:18 PM Devin Reade wrote:
 --On Monday, September 26, 2011 12:11:47 PM -0700 Benjamin Smith
 Unfortunately in trying to use C6 on the old machine I wound up with
 far too many changed variables to figure out where the problem was.
 Despite that, my gut tells me that it's not a hardware problem.

 Thanks for the feedback. Unfortunately, these aren't ancient 686 systems, they
 are 1-ish year old 8-core Intel Xeons with 32 GB of ECC RAM apiece. I can't
 justify replacing them, especially since two of the four are happily
 deliverying gorgeous performance!


Cane in late, but I suppose you tried the standards like re-seating anything 
that is removable? Cards, memory, etc...


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Re: [CentOS] Hard I/O lockup with EL6

2011-09-26 Thread Devin Reade

--On Monday, September 26, 2011 03:13:09 PM -0700 Benjamin Smith
li...@benjamindsmith.com wrote:

 Thanks for the feedback. Unfortunately, these aren't ancient 686 systems,
 they  are 1-ish year old 8-core Intel Xeons with 32 GB of ECC RAM apiece.
 I can't  justify replacing them, especially since two of the four are
 happily  deliverying gorgeous performance! 

No doubt.  

My comment about replacing it was just a statement about what happened
in my case (since fighting with old hardware is not exactly a valuable use
of my time).  It wasn't a suggestion.

The post itself was not much more than you're not the only person
seeing something wonky.  Mine is unfortunately lacking in hard data.

Devin

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Re: [CentOS] data recovery

2011-09-26 Thread Ross Walker

On Sep 26, 2011, at 11:18 AM, Paras pradhan pradhanpa...@gmail.com wrote:

 Hi Lamar,
 
 On Mon, Sep 26, 2011 at 5:53 AM, Lamar Owen lo...@pari.edu wrote:
 On Friday, September 23, 2011 04:29:39 PM Paras pradhan wrote:
 This is a SAN drive mounted. I have checked with my storage
 administrator if this has been re mapped or any similar events and he
 verified that nothing has happened...(I trust him)
 
 May I ask what sort of SAN?  Fibre Channel or iSCSI?  Are there any access 
 controls (such as EMC's Access Logix or zoning in the switch) in place to 
 prevent multiple initiators connecting to a particular LUN?
 
 Its a Hitachi OpenV fibre channel SAN (4Gbps HBA). My storage admin
 checked if this LUN can be accessible by others and he found no other
 hosts have access to it.
 
 
 SAN attachment mildly complicates things; I've seen some odd LUN reshuffling 
 before, but it was an older FLARE than what I'm currently running on our 
 Clariions and it was something that was a corner case but was fixed in a 
 later NDU, and it had to do with Access Logix (I don't remember the Primus 
 number right off, as it has been several years now).
 
 reshuffling here means automatically changing disk's geometry as I am
 having an issue? It would be interesting to know if this can happen.
 
 
 If the SAN OS keeps event logs you could try to correlate with the event; 
 beyond that you may just have to do some testing.
 
 As you say, someone somewhere had to do a repartition; the hard part is 
 determining where the error is.  Good luck.
 
 
 Here are some new additional info :
 
 My colleague mounted this LUN to a different host and we found the
 same partitions over there too which is normal.
 
 I dd a 1st device to a file and opened the image file with bvi and
 found some hosts name, VG name etc etc. in there. Then he ran a
 recovery tool (R studio) in all three devices and was able to recover
 most of this data.
 So my question is: if the LUN has been re partitioned for ex: say to
 install windows , why am i seeing our data in these newly created
 partitions? Is it possible to see data in a reapportioned drive?

Might it be possible you ran KVM on the host and accidentally set the guest 
disk to /dev/sda?

-Ross

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Re: [CentOS] Sort logfiles on common lines?

2011-09-26 Thread Dotan Cohen

On Sun, Sep 25, 2011 at 22:43, John R Pierce pie...@hogranch.com wrote:
 uniq can count occurances.  will require two sorts.  one to get all
 similar errors adjacent, the other to sort by count order.   instead of
 using field selects, lets just clip the timestamps off up front...

   cut -c 17- | sort | uniq -c | sort -rn

 (17- means from char 17 on... I may have miscounted)


Thank you John! That is perfect! I'm going through the uniq manpage
now. Have a great night!

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http://what-is-what.com
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[CentOS] Perl module installed via CPAN but its is not found

Hello,

I am trying to rebuild a zoneminder rpm. It calls for the module
perl(Sys::Mmap). I installed via CPAN but when I run rpmbuild --rebuild
zoneminder-xx, it tells me the above module is needed.

Seems I ran into this once before and fixed it, but I can't remember what I
did. I have searched for two days now and can't find anything of help.

TIA

Eddie

PS If I can get this zoneminder rpm to rebuild, I will post the location for
d/l. It is zoneminder 1.24.4

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[CentOS] x86_64.rpm v. i686.rpm

Just curious why there are two types of rpms for some packages. Just got my
first 64 bit machine. Which should I be installing? Both?

TIA

Eddie

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Re: [CentOS] Sort logfiles on common lines?

2011-09-26 Thread Dotan Cohen

On Sun, Sep 25, 2011 at 23:34, John R. Dennison j...@gerdesas.com wrote:
 Actually you are 2 full point releases behind; current is 5.7.  I would
 strongly suggest you update.


Thanks. I will mention that to the sysadmin.

-- 
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Re: [CentOS] Perl module installed via CPAN but its is not found

2011-09-26 Thread Scott Silva

on 9/26/2011 4:32 PM TE Dukes spake the following:
 Hello,

 I am trying to rebuild a zoneminder rpm. It calls for the module
 perl(Sys::Mmap). I installed via CPAN but when I run rpmbuild --rebuild
 zoneminder-xx, it tells me the above module is needed.

 Seems I ran into this once before and fixed it, but I can't remember what I
 did. I have searched for two days now and can't find anything of help.

 TIA

 Eddie

 PS If I can get this zoneminder rpm to rebuild, I will post the location for
 d/l. It is zoneminder 1.24.4
Remember... When building RPM's, the dependencies ALSO need to come by rpm, 
not CPAN.


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Re: [CentOS] x86_64.rpm v. i686.rpm

2011-09-26 Thread Scott Silva

on 9/26/2011 4:36 PM TE Dukes spake the following:
 Just curious why there are two types of rpms for some packages. Just got my
 first 64 bit machine. Which should I be installing? Both?

 TIA

 Eddie
Because a 64 bit machine can also run 32 bit programs. So the default seems to 
pull in several 32 bit rpms also... It doesn't really hurt to let both 
install, it just takes space.


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Re: [CentOS] Perl module installed via CPAN but its is not found

 -Original Message-
 From: centos-boun...@centos.org 
 [mailto:centos-boun...@centos.org] On Behalf Of Scott Silva
 Sent: Monday, September 26, 2011 7:50 PM
 To: centos@centos.org
 Subject: Re: [CentOS] Perl module installed via CPAN but its 
 is not found

 on 9/26/2011 4:32 PM TE Dukes spake the following:
  Hello,

  I am trying to rebuild a zoneminder rpm. It calls for the module 
  perl(Sys::Mmap). I installed via CPAN but when I run rpmbuild 
  --rebuild zoneminder-xx, it tells me the above module is needed.

  Seems I ran into this once before and fixed it, but I can't 
 remember 
  what I did. I have searched for two days now and can't find 
 anything of help.

  TIA

  Eddie

  PS If I can get this zoneminder rpm to rebuild, I will post the 
  location for d/l. It is zoneminder 1.24.4
 Remember... When building RPM's, the dependencies ALSO need 
 to come by rpm, not CPAN.

That makes sense. Never thought about that. I wasn't able to find an rpm but
did find the .spec file. Think Dag Wieers had it but I don't know how to
make an rpm from it.

Thanks!

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Re: [CentOS] Perl module installed via CPAN but its is not found

 -Original Message-
 From: centos-boun...@centos.org 
 [mailto:centos-boun...@centos.org] On Behalf Of TE Dukes
 Sent: Monday, September 26, 2011 8:06 PM
 To: 'CentOS mailing list'
 Subject: Re: [CentOS] Perl module installed via CPAN but its 
 is not found

  -Original Message-
  From: centos-boun...@centos.org
  [mailto:centos-boun...@centos.org] On Behalf Of Scott Silva
  Sent: Monday, September 26, 2011 7:50 PM
  To: centos@centos.org
  Subject: Re: [CentOS] Perl module installed via CPAN but its is not 
  found

  on 9/26/2011 4:32 PM TE Dukes spake the following:
   Hello,

   I am trying to rebuild a zoneminder rpm. It calls for the module 
   perl(Sys::Mmap). I installed via CPAN but when I run rpmbuild 
   --rebuild zoneminder-xx, it tells me the above module 
 is needed.

   Seems I ran into this once before and fixed it, but I can't
  remember
   what I did. I have searched for two days now and can't find
  anything of help.

   TIA

   Eddie

   PS If I can get this zoneminder rpm to rebuild, I will post the 
   location for d/l. It is zoneminder 1.24.4
  Remember... When building RPM's, the dependencies ALSO need 
 to come by 
  rpm, not CPAN.

 That makes sense. Never thought about that. I wasn't able to 
 find an rpm but did find the .spec file. Think Dag Wieers had 
 it but I don't know how to make an rpm from it.

 Thanks!

Good grief, I found the rpm!! Guess my filter on rpm.pbone got me.

Have rebuilt the src.rpm now lets see if it installs and works!!

Thanks!!

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[CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

2011-09-26 Thread Thomas Dukes

For all interested, I have rebuilt the src rpm for zoneminder-1.24.4, fedora
15.

Its up and running on CentOS 6.0. Gonna have to d/l some files. Most of mine
came from rpm.pbone.net

The link is:
http://palmettoshopper.com/zoneminder/zonminder-1.24-3.el6.x86_64.rpm

Eddie

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Re: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

 -Original Message-
 From: centos-boun...@centos.org 
 [mailto:centos-boun...@centos.org] On Behalf Of Thomas Dukes
 Sent: Monday, September 26, 2011 9:40 PM
 To: 'CentOS mailing list'
 Subject: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

 For all interested, I have rebuilt the src rpm for 
 zoneminder-1.24.4, fedora 15.

 Its up and running on CentOS 6.0. Gonna have to d/l some 
 files. Most of mine came from rpm.pbone.net

 The link is:

http://palmettoshopper.com/zoneminder/zoneminder-1.24.4-3.el6.x86_64.rpm

Ooops, link corrected. Sorry!

 Eddie

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Re: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

2011-09-26 Thread Joseph L. Casale

http://palmettoshopper.com/zoneminder/zoneminder-1.24.4-3.el6.x86_64.rpm

Ooops, link corrected. Sorry!

That's on the end of one my last todo lists for a company I work for. I gave it 
a go a couple times
but had hardware issues with the card I was using in CentOS 5. Care to post the 
srpm?

Thanks!
jlc
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Re: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

 -Original Message-
 From: centos-boun...@centos.org 
 [mailto:centos-boun...@centos.org] On Behalf Of Joseph L. Casale
 Sent: Monday, September 26, 2011 9:51 PM
 To: 'CentOS mailing list'
 Subject: Re: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

 http://palmettoshopper.com/zoneminder/zoneminder-1.24.4-3.el6
 .x86_64.rp
 m

 Ooops, link corrected. Sorry!

 That's on the end of one my last todo lists for a company I 
 work for. I gave it a go a couple times but had hardware 
 issues with the card I was using in CentOS 5. Care to post the srpm?

 Thanks!
 jlc

Here ya go:
ftp://ftp.muug.mb.ca/mirror/fedora/linux/updates/testing/15/SRPMS/zoneminder
-1.24.4-3.fc15.src.rpm

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[CentOS] RTL8111/8168B always 100mbps

2011-09-26 Thread Muhammad Panji

Dear All,
I have an onboard Realtek RTL8111/8168B NIC. from lspci -vv :

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)

It is detected, but why the speed is always 100Mbps, already change
cable but still no luck. I use ethtool and from the output it seems
that system know that this NIC support gigabit speed :


    Supported link modes:   10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full
    Supports auto-negotiation: Yes
    Advertised link modes:  10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full

have change the driver r8169 with r8168 and follow the guide on CentOS
wiki http://wiki.centos.org/AdditionalResources/HardwareList/RealTekRTL8111b
but still it only get 100Mbps speed.

I user kernel 2.6.18-274.3.1.el5 and 2.6.18-274.3.1.el5-PAE. on
another machine with the same specs I use kernel  2.6.18-238.9.1.el5
and the gigabit speed works.

Any idea why this happened and how to solve it? Thank you.
Regards,





--
-
Muhammad Panji
http://www.panji.web.id                         http://www.kurungsiku.com
http://sumodirjo.wordpress.com          http://www.kurungsiku.web.id

http://www.linuxbox.web.id
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Re: [CentOS] zoneminder-1.24.4-3.el6.x86_64.rpm

2011-09-26 Thread Joseph L. Casale

ftp://ftp.muug.mb.ca/mirror/fedora/linux/updates/testing/15/SRPMS/zoneminder
-1.24.4-3.fc15.src.rpm

My bad, thought you had to modify the spec...
There were some recent changes to a bz I was following that got resolved which
got me thinking now that CentOS 6 is out I should get this done.
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Re: [CentOS] Hard I/O lockup with EL6

2011-09-26 Thread Emmanuel Noobadmin

On 9/27/11, Benjamin Smith li...@benjamindsmith.com wrote:
 When booting a non-working system, it boots straight up to the boot prompt
 (runlevel 3) without issue, and everything works fine. When the machine sits
 idle for a period of time (ranging from 15 minutes or so and up) the HDD
 becomes unreadable/unwritable and the system is useless for any purpose and
 must be hard restarted with a full power cycle - it won't even shut down.

I'm thinking I might have a similar problem with my test install of
EL6. Initially I had dismissed it as a one-off but it has apparently
locked up again. I'll be visiting it physically later and maybe have
more information to share. However, it is also a 3400-series Xeon, the
rest of the hardware are all cheaper hardware.

What drives are you using in these servers?
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Re: [CentOS] RTL8111/8168B always 100mbps

2011-09-26 Thread Emmanuel Noobadmin

On 9/27/11, Muhammad Panji sumodi...@gmail.com wrote:
 Dear All,
 I have an onboard Realtek RTL8111/8168B NIC. from lspci -vv :

 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
 RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)

 It is detected, but why the speed is always 100Mbps, already change
 cable but still no luck. I use ethtool and from the output it seems
 that system know that this NIC support gigabit speed :

What network switch is this connected to? Does it work if you disable
auto-negotiation and force the link speed to 1Gbps?
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[CentOS] openvpn + bridge utils in CentOS 6

2011-09-26 Thread 唐建伟

Hi all,

I just intalled openvpn + bridge in CentOS 6, but i get strange problems:

the remote PCs cannot get the local PCs'  MACs and also, the local PCs
cannot get the remote PCs' MACs

but when i run brctl showmacs br0  it will list all the MACs and also 
brctl show will show that all the correct adapters are in br0

SELinux disabled

any ideas?


-- 
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System Administrator
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Re: [CentOS] Hard I/O lockup with EL6