Re: [CentOS] Sendmail with Google Apps SMTP

[Simon Jolle sjolle]

On 06/28/2008 02:24 PM, Michael Holmes wrote:

I use Google Apps for my domain, hosted on a CentOS server.


What you are exactly hosting on your CentOS server? As far as I know 
Google Apps are hosted in Google data centers?


cheers
Simon






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[CentOS] Open Source Video Codec and Container (alternative to Xvid)

[Simon Jolle sjolle]

Hi CentOS users

I am running a forum with small video clips (from YouTube and others). I 
convert those Macromedia Flash videos with:


$ mencoder example.flv -ovc xvid -xvidencopts bitrate=1000:autoaspect 
-vf pp=lb -oac mp3lame -lameopts fast:preset=standard -o example.avi


I use mencoder RPM from Dag Wieers

1) Its very generic command line to convert videos. What would you 
improve? The size is much bigger than the original FLV :(


2) Is there a real open source format what I should prefer? Can you say 
something about its quality?


3) Whats the most painless format for exchanging videos with Win, Mac 
and Linux users?


cheers
Simon



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Re: [CentOS] tar spanning

[Simon Jolle sjolle]

On 05/15/2008 05:27 AM, Nick Fenwick wrote:
> For what it's worth, I usually use rar for this task, because I can
> figure out the command line in about 10 seconds by running 'rar' with no
> arguments and check the help output, and they confuse my Windows-y
> friends less if I need to pass them around.  Install rar from rpmforge.

I admit RAR is a file archiver that archives with very high compression
ratios and is very popular in windows world.

But is proprietary software (not Open Source).

I recommend you using 7zip[0] currently leader in high compression on
unix-like systems.

> To split a directory of files into roughly 700Mb bits:
> 
> rar a -v70k rarname_to_create.rar dir_of_files

7za a -v700m rarname_to_create.rar dir_of_files

Pre-packaged RPM is available at RPMforge[1]

> I recently wanted to split a large .iso of already highly compressed
> data into chunks that would fit on a FAT32 filesystem, so this is with
> no compression:
> 
> rar a -v70k -m0 rarname_to_create.rar dir_of_files
> 
> I just noticed that Fajar beat me to quoting google hits relating to
> 'tar | split' so I'll hold off doing the same :)
> 
> Nick

cheers
Simon

[0] http://www.7-zip.org/
[1] http://rpmforge.net/user/packages/p7zip/



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Re: [CentOS] Directory Compare

[Simon Jolle sjolle]

On 05/15/2008 08:51 PM, Joseph L. Casale wrote:
> I need to verify some directories of backed up data versus restored
> data. What would you recommend as the type of comparison to do, and
> which tool would give the easiest/most usable output?

You might look at mc (Norton Commander clone)

Sorry for Debian package description - have here, at home, only Debian

$ aptitude show mc
[...]
Description: midnight commander - a powerful file manager
 GNU Midnight Commander is a text-mode full-screen file manager. It uses
a two
 panel interface and a subshell for command execution. It includes an
internal
 editor with syntax highlighting and an internal viewer with support for
binary
 files. Also included is Virtual Filesystem (VFS), that allows files on
remote
 systems (e.g. FTP, SSH, SMB servers) and files inside archives to be
 manipulated like real files.

> Thanks! jlc

cheers
Simon



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Re: [CentOS] Best Motherboard

[Simon Jolle sjolle]

On 05/15/2008 04:24 PM, Sam Drinkard wrote:
>About 2 years ago, I build a server 
[...]

What are the advantages of building your own server comparing with
products from HP, Dell and IBM? Is it cheaper?

I never heard of DIY server hardware market.

cheers
Simon



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Re: [CentOS] dmidecode for CentOS 2.1? [hardware serial number and type]

[Simon Jolle sjolle]

On 04/28/2008 02:23 AM, John Newbigin wrote:
> rpm -qf /usr/sbin/dmidecode
> kernel-utils-2.4-6.1.EL

Thank you

> CentOS 2 is not dead yet. 
> dmidecode does exist and should work fine.

> John.

cheers
Simon



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Re: [CentOS] dmidecode for CentOS 2.1? [hardware serial number and type]

[Simon Jolle]

On Fri, Apr 25, 2008 at 2:26 PM, James Pearson
<[EMAIL PROTECTED]> wrote:
>  You might be able to run dmidecode from CentOS 3

>  I can run dmidecode taken from the CentOS3 kernel-utils RPM on an old
> Redhat 7.2 box, so it might work on a CentOS 2.1 box.

>  You can download the RPM from:
> 

Hi James

Thank you, I am happy that I don't need to go in data center :-)

cheers
Simon

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[CentOS] dmidecode for CentOS 2.1? [hardware serial number and type]

[Simon Jolle]

Hi CentOS users

I have here old CentOS 2.1 server on IBM Xseries 336. How to see
serial number and machine type?

It seems that "dmidecode" is not available for CentOS 2.1

cheers
Simon

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Re: [CentOS] deny other hosts from synchronizing time with NTP client

[Simon Jolle sjolle]

On 04/23/2008 03:58 AM, Filipe Brandenburger wrote:
> If that is the problem, maybe you should try changing "mask
> 255.255.255.0" to "mask 255.255.255.255". The "mask 255.255.255.0"
> means all the class C subnet.

Thank you

cheers
Simon



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[CentOS] deny other hosts from synchronizing time with NTP client

[Simon Jolle]

Hi CentOS users

We are running CentOS 4.5 with NTP 4.2.0.

# cat /etc/ntp.conf
restrict default ignore
restrict dns1.xxx.xxx mask 255.255.255.0 nomodify notrap noquery
restrict dns2.xxx.xxx mask 255.255.255.0 nomodify notrap noquery
restrict 127.0.0.1
server dns1.xxx.xxx
server dns2.xxx.xxx
fudge 127.127.1.0 stratum 10
driftfile /etc/ntp/drift
broadcastdelay 0.008
authenticate no

The problem is that other hosts are able to synchronize the time from
our servers. How to disable that?

# lsof -i :123
COMMAND  PID USER   FD   TYPE DEVICE SIZE NODE NAME
ntpd4874  ntp4u  IPv4  35805   UDP *:ntp
ntpd4874  ntp5u  IPv6  35806   UDP *:ntp
ntpd4874  ntp6u  IPv4  35807   UDP localhost.localdomain:ntp
ntpd4874  ntp7u  IPv4  35808   UDP xxx:ntp
ntpd4874  ntp8u  IPv4  35809   UDP xxx:ntp
ntpd4874  ntp9u  IPv4  35810   UDP xxx:ntp
ntpd4874  ntp   10u  IPv4  35811   UDP xxx:ntp

NTP listens on every interface.

cheers
Simon

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Re: [CentOS] MS Exchange Replacement

[Simon Jolle]

2008/4/7, Rudi Ahlers <[EMAIL PROTECTED]>:
> Joseph L. Casale wrote:
> > What is the closest open source mail server I can replace exchange with
> > that provides the nearest equivalent in user experience?

>  What about Zimbra or Scallix?

Both not Open Source
Scalix uses Scalix Public License (SPL) and Zimbra uses Yahoo Public
License (YPL) - both crap licenses and not OSI approved.

cheers
Simon

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[CentOS] RHEL on The Pirate Bay, Mininova, etc

[Simon Jolle sjolle]

Hi Centos Users

Its _really_ nonsense to release RHEL version on file sharing networks.
The only reason why RHEL is so popular on torrent trackers is the lack
of knowledge about Centos :-)

Conclusion: we should do more marketing :-)

cheers
Simon



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Re: [CentOS] Scheduled works...

[Simon Jolle]

2008/3/19, Tolun ARDAHANLI <[EMAIL PROTECTED]>:
> Hi guys;

Hi Tolun

> Is there any structure/program for scheduled works in Centos 5.1?(I want to
> empty my /tmp folder at decided hours...How can I do that?)

Use crontab for custom scripts.

You maybe also look at tmpwatch (removes files which haven't been
accessed for a period of time) - /etc/cron.daily/tmpwatch

cheers
Simon

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Re: [CentOS] which open source wiki CMS?

[Simon Jolle]

2008/3/17, Karanbir Singh <[EMAIL PROTECTED]>:
> While I am sure there are lists and forums out there which would be good
>  places to ask that question, the centos list is not that place. If your
>  question isnt centos specific - which in this case it isnt. please look
>  for a more appropriate place before posting it

Which mailing list is appropriate for this kind question? IMHO there
is no general (not project specific) CMS list

thank you

cheers
Simon

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Re: [CentOS] which open source wiki CMS?

[Simon Jolle]

2008/3/17, Craig White <[EMAIL PROTECTED]>:
>  there are hundreds and hundreds of CMS systems that meet your criteria
>  (PHP/MySQL)
>
>  http://www.cmsmatrix.org/
>
>  Which has much more authoritative comparisons
>
>  unless you are going to lay out more specific needs, there's little
>  point for people to toss ideas out.

What are the most popular and wide-spread Open Source Wiki projects
based on PHP/MySQL? Criteria are good community support, a lot of
third-party modules and good documentation.

The most famous named MediaWiki I don't wish to use. Anybody is running Pmwiki?

Wikimatrix.org list me 14 Wikis that match my criteria. Cmsmatrix.org
is overkill with a lot of proprietary software.

cheers
Simon

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[CentOS] which open source wiki CMS?

[Simon Jolle sjolle]

Hi Centos Users

I am searching for an Open Source Wiki CMS based on PHP/MySQL. There are
so much out there, thats why feel free to share you experience.

Please review your favorite Wiki software. Code quality, security,
features and continuous, stable development.

cheers
Simon
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[CentOS] /usr/bin/ld: skipping incompatible

[Simon Jolle]

Hi Centos Users

I try to compile SNMPPD (SNMP Proxy Daemon) on Centos 5.1 x86_64 with
latest patches. Dependencies (like libsplit, net-snmp-libs,
net-snmp-devel, net-snmp-libs) are installed, both 32 and 64 Bit.

# rpmbuild -tb snmppd-0.5.2.tar.gz
[...]
Making all in snmppd
make[2]: Entering directory `/tmp/snmppd-0.5.2/snmppd'
gcc  -Wall -Wno-uninitialized -Wchar-subscripts -Wmissing-declarations
-Wmissing-prototypes -Wnested-externs -Wpointer-arith
-Wno-sign-compare -Werror  -L/usr/lib  -o snmppd  conf.o control.o
log.o queue.o snmp.o snmppd.o threads.o utils.o -lnetsnmp  -lcrypto
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libnetsnmp.so when
searching for -lnetsnmp
/usr/bin/ld: skipping incompatible /usr/lib/libnetsnmp.a when
searching for -lnetsnmp
snmppd.o: In function `new_target':
snmppd.c:(.text+0x371): undefined reference to `split'
snmppd.c:(.text+0x3fb): undefined reference to `split_free'
snmppd.c:(.text+0x619): undefined reference to `split_free'
collect2: ld returned 1 exit status
make[2]: *** [snmppd] Error 1
make[2]: Leaving directory `/tmp/snmppd-0.5.2/snmppd'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/snmppd-0.5.2'
make: *** [all] Error 2
[...]

Can anyone explain me "/usr/bin/ld: skipping incompatible" in plain
english ;) How to solve it?

cheers
Simon

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Re: [CentOS] Slightly OT: How to learn UNIX

[Simon Jolle]

2008/3/6, Ugo Bellavance <[EMAIL PROTECTED]>:
> Hi,

Hi Ugo

> I was wondering what would be the best way to learn AIX, Solaris, or
>  HP-UX, for someone who knows Linux very well?  Books?  Courses?
>  Self-teaching in a home lab?
>
>  Thanks,
>
>  Ugo

I recommend you installing OpenSolaris in a virtual or physical
machine and build a labor environment.

Buy study guides for Solaris certified System, Network and Security
Administrator (for Solaris 10 boxes). OpenSolaris is released under an
OSI approved license and pretty innovative.

cheers
Simon

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Re: [CentOS] recommendation for Virtual Dedicated Server based on Centos

[Simon Jolle sjolle]

-BEGIN PGP SIGNED MESSAGE-
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On 03/03/2008 09:14 PM, Stephen Harris wrote:
> http://www.linode.com or http://www.panix.com/corp/v-colo/vplans.html
> I use CentOS on both and they're both great.

Hi Stephen

thank you. Panix really looks like an insider tip. Linode uses UML as
virtualisation software; Xen only in beta testing. From Wikipedia [0]:

> Panix is the third-oldest ISP in the world after NetCom and the
> World. Originally running on A/UX on an Apple Macintosh IIfx, Panix
> has gone through a number of transitions as the Internet has grown.
> It maintains a vibrant community of shell-users and posters to its
> private panix.* USENET newsgroups. Panix also hosts regular
> get-togethers for fellow Panixistas[1] in Central Park.
> 
> Panix was started as a commercial venture to fill the void created
> after New York City's primary USENET connected public access system
> (which was donation supported), The Big Electric Cat ceased
> operations.

[0] http://en.wikipedia.org/wiki/Panix_(ISP)

cheers
Simon
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Re: [CentOS] recommendation for Virtual Dedicated Server based on Centos

[Simon Jolle sjolle]

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On 03/03/2008 09:14 PM, Stephen Harris wrote:
>> Hi Debian Users
> 
> Umm, this is a CentOS list.  Umm.

Excuse me for this typo. Posted also on Debian list (Centos and Debian
are my distributions of choice)
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[CentOS] recommendation for Virtual Dedicated Server based on Centos

[Simon Jolle sjolle]

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Hi Debian Users

I am searching for a virtual server/rootserver. I prefer a Xen instance,
but also vservers are acceptable. Will be host a small Wiki - nothing
mission critical.

Here my criteria

- - about 20 $ monthly
- - payable with Credit Card or PayPal
- - about 12 GB diskspace
- - about 256 MB RAM
- - about 350 GB monthly data transfer
- - Console
- - IP address
- - about 6 subdomains
- - unlimited fresh installations
- - web based support

Do you have any recommendations?

cheers
Simon
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Re: [CentOS] about mono

[Simon Jolle sjolle]

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On 03/01/2008 08:11 PM, Roilan Cardoso Sánchez wrote:
> Hello Friens
> I'm usin mono in my centos 5 distro, but in the centos extra repository
> there is no the packages mono-basic and mono-complete, well the lastest
> version of mono is 1.2.6 and the version there is in the centos repo is
> 1.2.4 i cant found the version of this two packages for centos, please
> can anybady help me.
> 
> regards Roilan

Please do not hijack threads[0]

thank you

cheers
Simon

[0] http://en.wikipedia.org/wiki/Thread_hijacking

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Re: [CentOS] Send in your favorite CentOS slogan today

[Simon Jolle sjolle]

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On 03/01/2008 02:16 AM, Dag Wieers wrote:
> Hi everyone,

Hi Dag

> The CentOS project is looking for more slogans that may end up on
> promotional material (eg media, flyers, posters or stickers). We already
> collected a few funny, ironic, sarcastic or even distasteful ones.
> 
> Feel free to visit our Slogans wiki page for a good laugh or rude
> offenses and add your own slogan by sending them to this thread.

here my crap

CentOS: RHELly without expensive and useless support center
CentOS: ISV and IHV testing and certification without price tag
CentOS: The far spreaded and popular RHEL
CentOS: Without underpinning contract, but with smart community
CentOS: High-available cluster computing for free
CentOS: Enterprise-grade quality for zero bucks
CentOS: Life without kernel panic, aka bluescreen
CentOS: The dot in Web 2.0
CentOS: The better choice
CentOS: Because security matters
CentOS: Not a question but an answer!

cheers
Simon
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Re: [CentOS] OT: Thunderbird2 for 64 bits

[Simon Jolle sjolle]

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On 02/22/2008 04:46 PM, nate wrote:
> carlopmart wrote:
> 
> I'd suggest sticking to 32-bit. Thunderbird is already a memory pig,
> using 64-bit version would only make it worse.

Why?

> My Thunderbird has been running for about 18 hours and is using
> over 200MB of memory already(2.0.0.6).

The same here. Thunderbird is running for 3 hours and use 216 MB virtual
memory size/ 90 MB resident set size.

I am subscribing to Debian, Centos, SecurityFocus and RHEL mailing
lists. Nothing special.

> In 64-bit mode I wouldn't be surprised if the same usage would
> come out to 500MB+ memory usage.

Again why?

> Of course if you have enough memory not to care to set aside half
> a gig to your e-mail client then go for it.
> 
> nate

cheers
Simon


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[CentOS] kernel-devel: compile MPP/RDAC kernel module

[Simon Jolle]

Hi Centos Users

I am running Centos 4.6 wit latest updates. For I/O multipathing I
need to use kernel 2.6.9-55 (IBM support matrix). Trying to compile
Engenio Linux RDAC Driver[0]

I fail to install kernel-devel for this exact kernel (with up2date).
Up2date always installs the newest.

# make clean
make V=1 -C/lib/modules/2.6.9-55.ELsmp/build
M=/root/tmp/linuxrdac-09.02.B5.15
MODVERDIR=/lib/modules/2.6.9-55.ELsmp/build/.tmp_versions
SUBDIRS=/root/tmp/linuxrdac-09.02.B5.15 clean
make: *** /lib/modules/2.6.9-55.ELsmp/build: No such file or directory.  Stop.
make: *** [clean] Error 2

# ls -al /lib/modules/2.6.9-55.ELsmp/build
ls: /lib/modules/2.6.9-55.ELsmp/build: No such file or directory

# uname -r
2.6.9-55.ELsmp

# rpm -q kernel-devel
kernel-devel-2.6.9-67.0.4.EL.x86_64

cheers
Simon

[0] http://www.lsi.com/rdac/
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Re: [CentOS] securing web applications (Wiki CMS installation)

[Simon Jolle]

2008/2/11, James A. Peltier <[EMAIL PROTECTED]>:
> This is a very broad question to ask, however, I will appeal to the basics.
>
> 1) Use HTTPS whenever possible to avoid any passwords crossing the wire
> in clear text.
>
> 2) Ensure only the necessary modules are installed or enabled for your
> CMS to operate.
>
> 3) Always think least permissions necessary to perform the task
>
> 4) Ensure that MySQL is locked down with least permissions necessary.
> At the very least after you've installed MySQL make sure to run the
> secure-mysql-installation script to assign a password to the MySQL root
> user and lock down some of the basic tables.
>
> Each system is different and you should follow the guidelines outlined
> by the CMS to properly secure.  If you are not sure of what you are
> deploying, that's kinda scary, you should be weary of that and tread
> lightly.

thank you

I will deploy Wikka Wiki [0] - there are no explicit security settings
or guidelines

How to harden Apache and PHP (without using SELinux)?

cheers
Simon

[0] http://wikkawiki.org/HomePage
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[CentOS] securing web applications (Wiki CMS installation)

[Simon Jolle "sjolle"]

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Hi Centos Users

How to secure a Wiki CMS? This Wiki is based on Apache2, MySQL and PHP.
I cant read the code (lack of knowledge).

Would be glad about hints and URLs

cheers
Simon
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[CentOS] Centos 5.1 DomU on Debian Etch Dom0

[Simon Jolle]

Hi Centos users

I successfully installed a Centos 5.1 DomU on Debian Etch Dom0. I used
the virtual file systems from Jailtime[0]

How to this manual (without using Jailtime)? I wish to install from
Scratch. Xen-tools/rpmstrap doesn't work for me.

cheers
Simon

[0] http://jailtime.org/

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[CentOS] strange sar statistics: total CPU 90% in userspace, but CPU 0 and 1 only 1%

[Simon Jolle]

Hi Centos Users

The server (ProLiant DL380 G5, Centos 4.3) was not responsible anymore
(SSH), fans rotated at full power and the console was blank. After
restart it seems to be fine.

Now I am analyzing sar statistics (in system logs nothing special,
unusual). The hardware monitoring with HP tools didn't work.

# sar -P ALL
Linux 2.6.9-34.ELsmp (cent061) 01/15/2008

12:00:01 AM   CPU %user %nice   %system   %iowait %idle
12:10:01 AM   all 90.43  0.00  5.74  3.83  0.00
12:10:01 AM 0  0.91  0.00  0.07  0.04 98.98
12:10:01 AM 1  1.92  0.00  0.11  0.08 97.88
12:20:01 AM   all 73.85  0.00 24.23  1.92  0.00
12:20:01 AM 0  0.15  0.00  0.05  0.00 99.80
12:20:01 AM 1  0.17  0.00  0.06  0.01 99.76
12:30:01 AM   all 75.28  0.00 22.47  2.25  0.00
12:30:01 AM 0  0.17  0.00  0.04  0.00 99.78
12:30:01 AM 1  0.17  0.00  0.05  0.01 99.77
12:40:01 AM   all 72.09  0.00 24.81  3.10  0.00
12:40:01 AM 0  0.16  0.00  0.04  0.00 99.80
12:40:01 AM 1  0.15  0.00  0.06  0.01 99.78
12:50:01 AM   all 73.31  0.00 24.06  2.63  0.00
12:50:01 AM 0  0.14  0.00  0.04  0.01 99.81
12:50:01 AM 1  0.19  0.00  0.06  0.00 99.75
01:00:01 AM   all 74.06  0.00 24.06  1.88  0.00
01:00:01 AM 0  0.13  0.00  0.04  0.00 99.82
01:00:01 AM 1  0.19  0.00  0.06  0.00 99.74
01:10:01 AM   all 68.02  0.00 24.37  7.61  0.00
01:10:01 AM 0  0.23  0.00  0.09  0.01 99.67
01:10:01 AM 1  0.21  0.00  0.07  0.04 99.68
Average:  all 81.85  0.00 14.45  3.70  0.00
Average:0  0.27  0.00  0.05  0.01 99.67
Average:1  0.43  0.00  0.07  0.02 99.48

10:17:55 AM   LINUX RESTART

10:20:01 AM   CPU %user %nice   %system   %iowait %idle
10:30:01 AM   all  0.32  0.00  0.07  0.40 99.21
10:30:01 AM 0  0.35  0.00  0.07  0.44 99.14
10:30:01 AM 1  0.28  0.00  0.08  0.36 99.29
10:40:01 AM   all  0.25  0.00  0.07  0.21 99.47
10:40:01 AM 0  0.28  0.00  0.08  0.20 99.45
10:40:01 AM 1  0.22  0.00  0.07  0.21 99.50
[...]

How its possible that the total CPU is 90% busy, but CPU 1 + 2 only
1%? The server have 2 processors.

cheers
Simon

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Re: [CentOS] ssh terminal froze once in a while

[Simon Jolle]

2007/12/12, Centos <[EMAIL PROTECTED]>:
> My ssh terminal froze some times, and I was thinking it might be related
> to centos ,
> but now I found that even ubuntu users experiencing the same problem.

Is there a firewall between your client and the server (that kills the
session after inactivity)? Try the keep alive option.

cheers
Simon
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Re: [CentOS] sysstat out put

[Simon Jolle "sjolle"]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 11/28/2007 09:20 PM, Centos wrote:
> Hello
> 
> in our Sysstat output we have the following lines, any one knows what
>  does it mean ?
> 
> 00:00:01 CPU   i000/s  i008/s  i009/s  i014/s  i066/s  i074/s 
> i082/s  i090/s 01:20:01   0  248.090.000.000.00 
> 0.000.00 0.04   91.06 01:20:01   1 255.060.000.00
>  4.590.000.00
[...]

I guess you are monitoring interrupt activity by processor (sar -I PROC).

See "Red Hat Linux 9: Red Hat Linux System Administration Primer" [0] or
the "sar" man page - Here quote from the guide:

> By using the command sar -I PROC, it is possible to break down 
> interrupt activity by processor (on multiprocessor systems) and by 
> interrupt level (from 0 to 15):

> This report (which has been truncated horizontally to fit on the
> page) includes one column for each interrupt level (the i002/s field
> illustrating the rate for interrupt level 2). If this were a
> multiprocessor system, there would be one line per sample period for
> each CPU.
> 
> Another important point to note about this report is that sar adds or
> removes specific interrupt fields if no data is collected for that
> field. This can be seen in the example report above; the end of the
> report includes interrupt levels (3 and 10) that were not present at
> the start of the sampling period.

[0]
http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/admin-primer/s1-bandwidth-rhlspec.html

cheers
Simon

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Re: [CentOS] IP range of Google Analytics server farm

[Simon Jolle "sjolle"]

-BEGIN PGP SIGNED MESSAGE-
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On 11/14/2007 05:01 PM, Shibu C Varughese wrote:
> hi...Simon,

Hi Shibu

> I thinks you can get your answer at http://www.google.com/support/analytics/
> just have a search there 

I didn't found my answer there. Can you point me to the right page?
I wish to add an outgoing iptables rule that allows Google Analytics.

cheers
Simon

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[CentOS] IP range of Google Analytics server farm

[Simon Jolle]

Hi Centos Users

I would like to allow outgoing traffic to Google Analytics servers
(destination port 80). I wish to do a iptables rule. How to whitelist
all Google Analytics servers?

cheers
Simon

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[CentOS] 32 Bit vs. 64 Bit Linux Server installation

[Simon Jolle]

Hi Centos Users

What are the advantages of 64 Bit and respective 32 Bit installation
of Centos? With PAE 32 Bit installation can address huge amount of
RAM. As a desktop system, I prefer 32 Bit installation because of
teething troubles in 64 Bit Linux world.

When would you choose 64 Bit and when 32 Bit? We are running mostly
application and web services.

Is this true that with 32 Bit architecture the kernel is limited to 1 GB RAM?

cheers
Simon
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[CentOS] connect: Invalid argument (ping local interface)

[Simon Jolle]

Hi Centos Users

# ping 10.104.89.146
connect: Invalid argument

The Server has normal network connectivity. I ssh into it over this
interface. Strace output on Pastebin [0]. SELinux is disabled. Centos
4.3

cheers
Simon

[0] http://pastebin.com/m720052a8
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Re: [CentOS] Enable Repositories: [Errno 14] HTTP Error 404: Not Found

[Simon Jolle "sjolle"]

On 10/31/2007 01:17 PM, Akemi Yagi wrote:
> On 10/31/07, Ralph Angenendt <[EMAIL PROTECTED]> wrote:
> 
>> There is now active "contrib" repository in CentOS 5. I guess we should
> 
> s/now/no/

Thank you. After disabling contrib, yum is downloading metadata


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[CentOS] Enable Repositories: [Errno 14] HTTP Error 404: Not Found

[Simon Jolle "sjolle"]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi Centos Users

How to enable Repositories mentioned in "What are all the CentOS
repositories (directories) and what is each one for?" [0]

# yum -y update
Loading "installonlyn" plugin
Loading "protectbase" plugin
Setting up Update Process
Setting up repositories
base  100% |=| 1.1 kB
00:00
updates   100% |=|  951 B
00:00
http://centosk.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosi.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosr.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centose.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosh.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosf.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosg.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosj.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centoso.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
http://centosn.centos.org/centos/5/contrib/i386/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
Error: Cannot open/read repomd.xml file for repository: contrib

[0] http://www.centos.org/modules/smartfaq/faq.php?faqid=33

cheers
Simon
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Re: [CentOS] CentOS groups on LinkedIn, Facebook, Orkut or Xing

[Simon Jolle \"sjolle\"]

-BEGIN PGP SIGNED MESSAGE-
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On 09/29/2007 12:49 PM, Dag Wieers wrote:
> Hi everybody,
> 
> I want to give some attention to the CentOS group that exist on LinkedIn,
> Orkut, Facebook and Xing. If you have a profile on one of these networks,
> why not join the CentOS group and hook up with other members ?
[...]
> 
>   http://wiki.centos.org/Promo/Networks

Welcome to Privacy 2.0 or the transparent net citizen.

Sadly today's generation doesn't care about their privacy. Governments
around the world implement surveillance cameras, web traffic analysis
and monitoring, RFID tracking and so on

In this context the Slashdot article "Social Network Users Have Ruined
Their Privacy" [0] might be interesting.

[0] http://yro.slashdot.org/article.pl?sid=06/12/26/1321226
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[CentOS] Thermal/Heat

[Simon Jolle \"sjolle\"]

-BEGIN PGP SIGNED MESSAGE-
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Hi list

Can you please say me what this output exactly mean? Anything in
relation to fans/cooling? What does "active" and "ok" mean? Which values
are healthy?

# acpi -tBSc
 Thermal 1: active[3], 50.0 degrees C
 Thermal 2: ok, 47.0 degrees C
 Thermal 3: ok, 45.0 degrees C
 Thermal 4: ok, 28.0 degrees C
 Thermal 5: ok, 35.0 degrees C

Didn't found any useful docs about this.

thanks

Simon
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Re: [CentOS] Help with External USB drive on RH/Centos 5

[Simon Jolle "sjolle"]

Scott Ehrlich wrote:

Another issue to tackle - I have an external 1 TB drive (2 500GB on a
 RAID). When I plug it into the server, it sees, via
/var/log/messages, that a USB device was plugged in, but that's it.
fdisk -l doesn't see it.  dmesg doesn't do much, either.   It is a
Western Digital My Book II device.


I don't own this external hard disk, but did a Google Query for you.

I quote from "Bits and Pieces: Western Digital "MyBook Pro Edition II" 1 
TB & linux" [0]



The cube has a built in, configurable RAID controller and is built
for MACs (but runs on Windows, too). So don't start crying if it's
not yet necessary. First I grabbed one of the seldom Windows boxes
from my office (no Windows at home, but not dark at all) and
installed the magic RAID controller utility shipped with the drive.
One time "reconfiguring" it to "NTFS / RAID1" made it and the device
showed up with 500G after pluggin it to the linux box. A second
reconfiguration (on Windows) to "NTFS / RAID0" and it showed the up
in its full majesty:


[0] http://linu.gs/misc/remember/wd-mybook-1TB-on-linux.php
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[CentOS] delay after wrong password

[Simon Jolle]

Hi list

If a user connect by Console or OpenSSH and type in the wrong
password, I wish to delay the next password prompt. Use case is for
example brute force attacks.

I played with FAIL_DELAY in login.defs, but without success.

cheers
Simon

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Re: [CentOS] Package Tracking System

[Simon Jolle "sjolle"]

Server Gremlin wrote:

Steve Rigler wrote:
Thanks guys, that is pretty much what I want.  But what if I want to see 
the changelog for a package that I don't have installed?  I'd like to 
look at the changelog for a package available via yum before I upgrade 
my existing package to it.  When I did a "rpm -q --changelog mypackage", 
that only showed changes up to my currently installed version.  (Which 
makes sense if this is just looking on my local machine, which I assume 
it is)


I am with you. Submit a feature request, maybe someone implements this.
I also miss in RHEL and rebuilds something like "apt-listbugs". It lists
you known bugs, before you install the software. "apt-listbugs" is a
command line interface that query's Debian Bug Tracking System -> you
don't need to open a web browser.


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[CentOS] Kernel parameter "pci=nommconf" "nophet"

[Simon Jolle]

Hi list

I am installing a couple IBM System x3650. IBM Support advises to put
"pci=nommconf" and "nophet" at installation prompt and later in
grub.conf.

But what those parameters do? I didn't found any technical
documentation. Thanks for sharing background information about those
parameters.

cheers
Simon

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[CentOS] Seagate FreeAgent Pro (external storage, eSATA) linux compatibility

[Simon Jolle]

Hi list

I am running out of space on my notebook. So wanna buy additional and
external storage. I don't wanna do a DIY-work, so searching for
pre-built external hard disks.

I wish to buy Seagate FreeAgent Pro [0]. Does it work under CentOS 5?
Would you recommend me even better products?

I am searching for good performance, noise-less, smart standard
support and no useless features like NFS/CIFS server, etc.

[0] 
http://www.seagate.com/www/en-us/products/external/freeagent_pro_data_movers/

cheers
Simon

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Re: [CentOS] tovid on centos5?

[Simon Jolle]

2007/8/23, Dave <[EMAIL PROTECTED]>:
> Does anyone know of an rpm for tovid for centos5? I'm trying to author
> some dvds and would like to use it.

Hi Dave

A Google Query showed no RPM for RHEL/Centos. Even for Fedora only
from third-party repositories.

I recommend you rebuilding
http://www.deadbabylon.de/fedora/repository/source/stable/tovid-0.29-1.fc6.src.rpm
on RHEL

cheers
Simon

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[CentOS] UTC vs local time

[Simon Jolle]

Hi list

I always configure my systems to use our local time (in my case
/usr/share/zoneinfo/Europe/Zurich) and disable UTC.

What are the differences between UTC and local time? What are their
respective advantages and disadvantages?

When to use UTC?

cheers
Simon

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Re: [CentOS] quick FTP server with default vsftpd installation

[Simon Jolle]

2007/8/22, Ray Leventhal <[EMAIL PROTECTED]>:
> Does the ftp daemon respond properly if you issue:
>
> /usr/sbin/setenforce 0
>

Hi Ray

Yes by disabling SElinux everything works as expected. I think I need
some introductions docs about selinux ;-)

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Re: [CentOS] quick FTP server with default vsftpd installation

[Simon Jolle]

Hi Ray

2007/8/22, Ray Leventhal <[EMAIL PROTECTED]>:
> Is SELinux running?  if so, what mode?

SELinux is running in enforcing mode.

> I recall having to construct an setsebool statement to get vsftpd opened
> up correctly.  I'll look back at my notes and will repost this evening
> if it hasn't already been answered by then.

This is my first machine with SELinux enabled.

cheers
Simon

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[CentOS] quick FTP server with default vsftpd installation

[Simon Jolle]

Hi list

I just installed vsftpd and started it (CentOS 5). Then put some files
in /var/ftp/pub (for testing purposes with rights 777) and try to
connect with local user to download those files.

$ lftp [EMAIL PROTECTED]
Password:
lftp [EMAIL PROTECTED]:~> ls
ls: Login failed: 500 OOPS: cannot change directory:/home/test
lftp [EMAIL PROTECTED]:~> pwd
ftp://[EMAIL PROTECTED]

How to enable quick and dirty FTP transfer?

cheers
Simon
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