[CentOS] CentOS 6 - VM network bridge issue

[Emmett Culley]

I built a CentOS 6 machine to host several CentOS 6 guest servers. As all 
guests will be Internet facing I set up the host with two bridged NICs and 
assigned an Internet facing IP address to br0 and a local IP address to br1.

Each guest was installed using br0 and br1 with virtio drivers.  On each I 
assigned an Internet facing IP address to eth0 and a local IP address on eth1.  
So far so good.  I can access the guest servers from either IP address as 
expected.  That is HTTP, SSH and SMTP servers on them are accessible and do 
what they are supposed to do.

Except...  Except from any location outside of my Comcast Cable Modem.  To be 
clear, from any machine inside the modem to any address on the guests, all 
works perfectly.  But outside the modem the guest apps either don't receive 
packets or for some reason don't respond, and I've tired it from four different 
locations.

Using Wireshark on the guests I can see the packets arrive from the outside 
sources, but no response is seen.  On accesses from inside I can see both 
incoming and outgoing packets, as expected.

I can ping the outside sources from the guests, yet pings from the outside 
sources get no response from the guests.  All the outside sources get responses 
when pinging the host.  I can ping the guests from any inside machine.

I've tried it with and without firewalls, both on the guests and the host. 
Including with the following iptables rule:

iptables -A FORWARD -m physdev --physdev-is-bridged -j ACCEPT

and the following sysctl adjustments:

net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0

Both of the guest servers I've built have have same issue.

Any ideas?  I am at loss as to how to proceed and am about to reconsider the 
idea of multiple guests as servers.

All packages are from the CentOS repo and I am using kvm-qemu via libvirtd and 
virt-manager.

Emmett
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[CentOS] cannot start virt-manager in centos 6

[赵小强]

  I just upgrade from centos 5.6 to centos 6.0 on a x86_64 box. But 
when I try to create a new virtual guest, virt-manager give: Error: 
internal error cannot parse /usr/bin/qemu-system-x86_64 version number 
in 'QEMU emulator version 0.14.0, Copyright (c) 2003-2008 Fabrice Bellard'.
 I have googled it ,but got nothing help. Any help? Thanks first :-)

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Re: [CentOS] Wireless Interface Does Not Connect Automatically At StartUp

[Manish Kathuria]

On Mon, Jul 18, 2011 at 11:06 PM, Cody Jackson  wrote:
> Hi Manish;
>
> I've never tried NM during boot. (Personally, I dislike NM at all.)
> You might find a system similar to this to be more of your liking:
>
> http://wiki.centos.org/HowTos/Laptops/WpaSupplicant
>
> I use this in place of my CentOS 6 backup server, which has an
> rt2500pci card in it--which, by the way, is a horrible shoddy card
> that I do not recommend. It doesn't play nice with Netgear APs. But I
> digress.
>
> CentOS 6 appears to have made some changes to the above document. What
> I've discovered is:
>
> 1. You don't need to edit ifup-wireless.
> 2. You don't need to edit ifconfig-* (although one should be
> created--I can post mine if it'll help you.)
> 3. All you need in /etc/rc.local is an 'ifup wlan0' line.
> 4. You DO need to edit /etc/sysconfig/wpa_supplicant and add the
> interface of your wireless card to the options there (example:
> -iwlan0).
> 5. wpa_supplicant should be ENABLED on boot.

> Cheers,
> Cody Jackson
>
>
> On 7/18/11, Manish Kathuria  wrote:
>> I have recently installed CentOS 6 on a system with  a Realtek 8180L
>> wireless card. The wireless card is detected properly and uses the
>> rtl8180 driver. But it connects to our wireless network only after
>> logging to the Desktop Environment (GNOME) and using the Network
>> Manager Applet. In order to make the wireless card connect to the
>> network automatically at system start up, I edited the Connection
>> using the Network Manager Applet and checked "Connect Automatically"
>> and "Available to all users" options.  However, while booting the
>> system, the following error message is displayed when the wireless
>> network interface is brought up.
>>
>> Device does not seem to be present, delaying initialization
>>
>> But as soon as a user logs on to the Desktop, he can connect to the
>> network using the NM Applet.
>>
>> I have also toggled between using DHCP and Static IP Address for the
>> the wireless card but it makes no difference. The SSID is not being
>> broadcast and the Wireless Access Point / Router uses WPA-PSK.
>> --
>> Manish Kathuria

Thanks for the tip. While searching for a solution, I also read about
wicd (http://wicd.sourceforge.net/) which can help, but will try
wpa_supplicant first since its a part of the distro.
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Re: [CentOS] cent0s-6 and virtualbox

[Akemi Yagi]

On Mon, Jul 18, 2011 at 4:53 PM, Scott Robbins  wrote:
>>
>> > > On Monday, July 18, 2011 01:52 AM, Michel Donais wrote:
>>
>> > >> The version is CentOS-6.0-i386-bin-DVD.iso
>> > >> With each virtual machine I get this result at the beginning of the
>> > >> installation:
>> > >> "This kernel requires the following features not present on the cpu pae"
>> > >> "Unable to boot - please use a kernel appropriate for your CPU"
>> > >> I undeerstand that perhaps the computer processor is too old.
>> > >> But is there a patch to overpass this problem?
>
> I might have messed up the quoting here, not sure if Michael was the OP,
> but at any rate, there is this post on SL forums about installing a
> non-PAE kernel which might be useful.
>
> http://scientificlinuxforum.org/index.php?showtopic=621

Or ... keep an eye on this ELRepo bug tracker:

http://elrepo.org/bugs/view.php?id=153

kernel-ml for EL6 will have a non-PAE flavo(u)r. It is now cooking.

Akemi
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Re: [CentOS] cent0s-6 and virtualbox

[Scott Robbins]

> 
> 
> > > On Monday, July 18, 2011 01:52 AM, Michel Donais wrote:
> 
> 
> > >> The version is CentOS-6.0-i386-bin-DVD.iso
> > >> With each virtual machine I get this result at the beginning of the
> > >> installation:
> > >> "This kernel requires the following features not present on the cpu pae"
> > >> "Unable to boot - please use a kernel appropriate for your CPU"
> > >> I undeerstand that perhaps the computer processor is too old.
> > >> But is there a patch to overpass this problem?

I might have messed up the quoting here, not sure if Michael was the OP,
but at any rate, there is this post on SL forums about installing a
non-PAE kernel which might be useful.

http://scientificlinuxforum.org/index.php?showtopic=621


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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Always Learning]

On Mon, 2011-07-18 at 22:58 +0100, Keith Roberts wrote:

> And I thought Windoze 3.11 was really hot stuff then - doh!

So did I. It was single-tasking but you could turn-off the machine at
any stage and it would always restart perfectly well without the
slightest problem. Then came Windoze 95, which critics called Apple Mac
1986, followed by Windoze 98 with errors and bugs galore then Windoze 98
second attempt to get it right then followed by M$'s third attempt at a
98 product called Windoze ME.

Have DOS 6 somewhere, and M$ / Micro Focus DOS Cobol too, and possibly a
copy of DOS 3.3.

However Centos (or Linux generally) is certainly a real hands-on
operating system offering lots of satisfaction absent from all M$
products. Just wish I had discover the joys of Centos years ago. It
really is a computer person's delight. So boring because it just works
well and reliably :-)


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Paul.
England,
EU.


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Re: [CentOS] EL6, xinetd, and permissions. What am I missing?

[Benjamin Smith]

On Monday, July 18, 2011 10:20:52 AM m.r...@5-cent.us wrote:
> > Staging for a rollout of EL 6, and ran into a very strange permissions
> > issue with xinetd that defies all (my) logic.
> 
> 
> You're not using access controls lists, are you? 

Not knowingly!  

> And if this is accessed
> via httpd, is the php directory visible in the apache configuration?

The data folders written by the daemon is used interchangeably with the Apache 
daemon (httpd) but the scripts involved are not part of the apache doc root 
and are not accessible via httpd. 

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Re: [CentOS] EL6, xinetd, and permissions. What am I missing?

[Benjamin Smith]

On Monday, July 18, 2011 10:02:18 AM Eero Volotinen wrote:
> > Strangely, setting permissions to o+x and it starts up fine, but I don't
> > want to leave permissions that open.
> 
> rx to owner is enought

Except the owner of the script is not the effective user running the script. I 
want to use the "x" attribute on the group account. For some reason that isn't 
working. 

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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Keith Roberts]

On Mon, 18 Jul 2011, Always Learning wrote:

> To: CentOS mailing list 
> From: Always Learning 
> Subject: Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)
> 
>
> On Mon, 2011-07-18 at 22:17 +0100, Keith Roberts wrote:
>
>> On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:
>
>>>   mark "now if I can get my fiancee to at least upgrade
>>> to Win7"
>
>> So what is your fiancee running ATM - XP or 98?
>
> Windoze 3.11 ? I've still have a  copy :-)

They were running that at college in 88-90 on AT 286's. And 
a Vax machine with terminals running BSD Unix IIRC?

And I thought Windoze 3.11 was really hot stuff then - doh!

I've still got my MS-DOS boot disks that came with my XT 
8088 machine.

Regards,

Keith

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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Always Learning]

On Mon, 2011-07-18 at 22:17 +0100, Keith Roberts wrote:

> On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:

> >   mark "now if I can get my fiancee to at least upgrade
> > to Win7"

> So what is your fiancee running ATM - XP or 98?

Windoze 3.11 ? I've still have a  copy :-)


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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[m . roth]

Keith Roberts wrote:
> On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:
>
> *snip*
>
>> Congrats, Keith, and thanks for the well-detailed solution.
>>
>>   mark "now if I can get my fiancee to at least upgrade
>> to Win7"
>
> YW Mark and list members :)
>
> That well-detailed solution is for some time in the future.
> It's fresh in my mind now, but 3 months from now there's no
> telling how much I'm gonna remember.
>
> So what is your fiancee running ATM - XP or 98?

Worse: Vista. Gotta get her to spring for *anything* better (which was
worse: Vista, or '98? I assume the bottom of the heap was Lose Me*).

   mark

* As friends told me in the mid-nineties, you don't win with Windows, you
lose, so it was Lose95, Lose98, and the *perfectly* named LoseMe

PS: she won't be moving in for another year, so when she's over, she'll be
on my CentOS system, and I'll see if I can get her comfortable with it

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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Keith Roberts]

On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:

*snip*

> Congrats, Keith, and thanks for the well-detailed solution.
>
>   mark "now if I can get my fiancee to at least upgrade
> to Win7"

YW Mark and list members :)

That well-detailed solution is for some time in the future. 
It's fresh in my mind now, but 3 months from now there's no 
telling how much I'm gonna remember.

So what is your fiancee running ATM - XP or 98?

Kind Regards,

Keith

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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Always Learning]

On Mon, 2011-07-18 at 16:18 -0400, m.r...@5-cent.us wrote:

> mark "now if I can get my fiancee to at least upgrade
>  to Win7"

Surely the best fiancees share our love of, and use of, Centos ;-)


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Re: [CentOS] Centos EL6 install issue

[Lucian]

On Mon, Jul 18, 2011 at 8:59 PM, Jerry Geis  wrote:
>>
>> On Mon, Jul 18, 2011 at 7:23 PM, Jerry Geis > > wrote:
>> >>/
>> />>/ How are you installing? CD, netinstall ?
>> />>/
>> />/ I am using the KVM virtual machine.
>> />/ I then use the CDROM to get the boot process running at the first screen
>> />/ I hit tab and add to the line:
>> />/
>> />/  ks=http://IP/ks.cfg
>> /
>> If you use an external repo does the error persist? I suspect your
>> repo(s) may be incomplete or have some inconsistencies.
>>
> Lucian
>
> Thanks for the suggestion. Yes - apparently something was wrong with my
> local repo.

Use rsync to mirror a Centos repo locally, it does some checksumming
assuring you get the right thing.
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Re: [CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[m . roth]

Keith Roberts wrote:
> On Mon, 18 Jul 2011, Keith Roberts wrote:
>> From: Keith Roberts 
>> On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:
>>> From: m.r...@5-cent.us
>>> Keith Roberts wrote:
 I have my main machine running Centos 5.6, and it has a HP
 Deskjet 810c printer physically attached to it. CUPSD
 broadcasts in on my LAN as the default printer. I can print
 to the default HP printer over the LAN, from a laptop
 running Centos 5.6.

 However, I do have problems trying to print to this
 same printer over the LAN, from a laptop running
 M$ Vista.

> So that's it fixed now.

Congrats, Keith, and thanks for the well-detailed solution.

   mark "now if I can get my fiancee to at least upgrade
 to Win7"

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Re: [CentOS] Centos EL6 install issue

[Jerry Geis]

>
> On Mon, Jul 18, 2011 at 7:23 PM, Jerry Geis  > wrote:
> >>/
> />>/ How are you installing? CD, netinstall ?
> />>/
> />/ I am using the KVM virtual machine.
> />/ I then use the CDROM to get the boot process running at the first screen
> />/ I hit tab and add to the line:
> />/
> />/  ks=http://IP/ks.cfg
> /
> If you use an external repo does the error persist? I suspect your
> repo(s) may be incomplete or have some inconsistencies.
>   
Lucian

Thanks for the suggestion. Yes - apparently something was wrong with my 
local repo.

jerry

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[CentOS] [SOLVED] CUPS LAN printing problem (from Vista)

[Keith Roberts]

On Mon, 18 Jul 2011, Keith Roberts wrote:

> To: CentOS mailing list 
> From: Keith Roberts 
> Subject: Re: [CentOS] CUPS LAN printing problem (from Vista)
> 
> On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:
>
>> To: CentOS mailing list 
>> From: m.r...@5-cent.us
>> Subject: Re: [CentOS] CUPS LAN printing problem (from Vista)
>>
>> Keith Roberts wrote:
>>> I have my main machine running Centos 5.6, and it has a HP
>>> Deskjet 810c printer physically attached to it. CUPSD
>>> broadcasts in on my LAN as the default printer. I can print
>>> to the default HP printer over the LAN, from a laptop
>>> running Centos 5.6.
>>>
>>> However, I do have problems trying to print to this
>>> same printer over the LAN, from a laptop running
>>> M$ Vista.
>>>
>>> Has anyone been able to print from a machine running M$
>>> Windoze Vista to their CUPS LAN printer running on Centos
>>> 5.x please. All I need to know is yes, this works, or no
>>> it's not possible.
>> 
>> Dunno 'bout 5.6, but 5.4, 5.5, sure. We had people doing that.
>
> Thanks Mark - that's all I need to know.
>
> If it works for 5.4/5 there's not reason for it not to work
> on 5.6
>
> Now I know it's possible to do, I will spend time on reading
> the documentation and seeking a solution myself.
>
> I'm not looking to be spoon fed three times daily - LOL!

OK, thanks again for confirming that Mark. I have it working 
now fine. Here are the notes I've made for the next time I 
have to reinstall Windoze Bista.

++

Install Wireshark, and then install the HP Deskjet 810c 
Inkjet printer driver. (Use the 812c - it's close enough)

Notes for setting up CUPS HP Deskjet 810c printer
to be able to print across LAN from Vista Home.

Install the printer following this guide:

http://www.divms.uiowa.edu/help/windows/printers_vista/

Using Wireshark Network Analyser I got the following error under
the IPP menu when trying to print a test document:

Status-code: client-error-document-format-not-supported

Googling for that returned the following forum article:

http://mindspill.net/computing/cross-platform-notes/cups-client-error-document-format-not-supported.html

Following the above article and making the suggested changes
fixed the printing from Vista to Centos 5.6 CUPS problem:

The problem

Printing fails from Windows, with the following message in
/var/log/cups/access_log (on the linux box):

Print-Job client-error-document-format-not-supported

The solution ?

Make sure you've enabled support for Windows PCL drivers.

Uncomment application/octet-stream in /etc/cups/mime.types
and uncomment application/octet-stream in /etc/cups/mime.convs.

I made those changes, actually created a local.types and local.convs file
in /etc/cups/ and stopped and restarted the cups server.

Restarting the print job under Vista, and the printer responded
immediately. The Status-code in Wireshark has now changed to
"succesful-ok"

I got a Windows Printer Test Page with details of the printer
setup, and Additional files used by this driver."

++

So that's it fixed now.

Kind Regards,

Keith Roberts

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[CentOS] system-config-kickstart error Centos 6

[Jerry Geis]

I have noticed that if you have a %include in your kickstart file
and the include file does not exist (It's created in my %pre section) - 
- I could not even bring up
the kickstart editor.

I get an error about the file could not be opened. No reason why and 
then the editor just exists.

I had to keep chopping down my file till I found the offending line.

Hope this helps someone else...

Jerry
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Re: [CentOS] Centos EL6 install issue

[Lucian]

On Mon, Jul 18, 2011 at 7:23 PM, Jerry Geis  wrote:
>>
>> How are you installing? CD, netinstall ?
>>
> I am using the KVM virtual machine.
> I then use the CDROM to get the boot process running at the first screen
> I hit tab and add to the line:
>
>  ks=http://IP/ks.cfg

If you use an external repo does the error persist? I suspect your
repo(s) may be incomplete or have some inconsistencies.
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Re: [CentOS] SPAM on the List

[Steve Clark]

On 07/18/2011 02:37 PM, Steve Clark wrote:

On 07/18/2011 01:00 PM, Les Mikesell wrote:

On 7/18/2011 11:25 AM, ?? ?? wrote:

So do you typically provide helpful answers to forum questions sooner
after they are posted when you have to forum-hop than you would if they
land in your inbox or later?

Obviously some level of activity must be maintained within a community
to ensure decent response times, but newer communities such as Ubuntu
have found forums to be a fairly useful thing. The forum community there
is doing well and questions get answered at a reasonable pace -- with
the added benefit that when someone goes on vacation they have no box
that needs filtering, unsubscribing, setting in a vacation state, etc.
to protect from lists or spam. Outside of the tech world forums have
proven themselves durable and usable for help and feedback purposes --
overwhelmingly so.

I don't think Ubuntu is a reasonable project example unless you can come
up with a way to match it's resources, which I believe include paid
participants.  Who is going to hover over a forum waiting to answer
questions otherwise?


So... what is wrong with newsreaders? In my experience the provide all
the benefits of email (speed, uniform interface, etc.) that you listed
as well as all the benefits of a post/fetch paradigm that I get from
forums without any of the hassles of either.

Interesting that you bring this up in the context of spam.  The problem
with net news is that all of the servers stopped handling it because of
the porn and copyright-infringing binaries postings that overwhelm it.

Newsreaders require a news server. News servers can be run by anyone, it
doesn't require a global cabal to serve news. In the later days of
usenet it was overwhelmed by crap, largely because of the enormous
number of groups created by people who didn't have time to maintain
them, had a blanket anonymous publish policy, and eventually never
showed back up to take care of their lists.

You make it sound accidental. That's not the way I remember it.


What I am describing is the running of a newsgroup server specific to a
project or interest, say news.centos.org (or whatever for whatever).
Initial validation would be required (not unusual for mailing lists) for
initial posting, and after that unmoderated publication would be
permitted by a validated user. This is a simple system. Disabling
attachments and/or setting file/message size limits is trivial and is an
action which occurs in just one place (the server) and doesn't bother
the users.

So if you have 100 interests, you'd have to establish and maintain 100
logins and passwords - and configure them on every device/application
you use for access.  That's not my idea of convenience.


 From an anti-spam/security perspective a post/fetch system is simply
more suitable for noise-free discourse than email.

I just don't see the distinction other than having more possibility of
after-the-fact cleanup before delivery - and then only if someone goes
to the trouble of doing it and you are slow in your fetching.


That we have
forgotten that is likely more due to the timing of the web explosion in
the early 90's and the tech/generation gap it produced than anything
else.

Ummm, no.  There was always a lot more crap posted to usenet than there
is here.  Maybe you've forgotten that.


A news service with censorship might be OK.  Until they censor something
that you wanted to say or see.  Forums with rss feeds might be a middle
ground to centralize the reading side but there's still the issue of
standardizing the forum interfaces so you don't have to figure out how
to reply again for every interesting topic.

You have just described properly run newsgroups -- and why I am
suggesting them as a reasonable course of action which would resolve
spam issues not just within list, but limit everyone's exposure to spam
in their general mail boxes.

The protocol for the transfer doesn't really matter here.  What you
propose isn't particularly different than setting up local email service
with accounts for all users for every list.  That is, it would be
equally inconvenient and not solve any of the underlying problems.


Hmm... I am on a number of ML one of which is LKML and I find the amount of 
spam is miniscule in comparison to the
number of messages.

Also trying to keep up with all the topics and new threads on any forum I have 
been on seems much more difficult than
on any mailing list.

I have thunderbird setup to read mail threaded and if its a thread I am not 
interested a simple CTL-t marks any new messages
as read.

oops should have been just 't' not ctl-t.
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Re: [CentOS] SPAM on the List

[Steve Clark]

On 07/18/2011 01:00 PM, Les Mikesell wrote:

On 7/18/2011 11:25 AM, ?? ?? wrote:

So do you typically provide helpful answers to forum questions sooner
after they are posted when you have to forum-hop than you would if they
land in your inbox or later?

Obviously some level of activity must be maintained within a community
to ensure decent response times, but newer communities such as Ubuntu
have found forums to be a fairly useful thing. The forum community there
is doing well and questions get answered at a reasonable pace -- with
the added benefit that when someone goes on vacation they have no box
that needs filtering, unsubscribing, setting in a vacation state, etc.
to protect from lists or spam. Outside of the tech world forums have
proven themselves durable and usable for help and feedback purposes --
overwhelmingly so.

I don't think Ubuntu is a reasonable project example unless you can come
up with a way to match it's resources, which I believe include paid
participants.  Who is going to hover over a forum waiting to answer
questions otherwise?


So... what is wrong with newsreaders? In my experience the provide all
the benefits of email (speed, uniform interface, etc.) that you listed
as well as all the benefits of a post/fetch paradigm that I get from
forums without any of the hassles of either.

Interesting that you bring this up in the context of spam.  The problem
with net news is that all of the servers stopped handling it because of
the porn and copyright-infringing binaries postings that overwhelm it.

Newsreaders require a news server. News servers can be run by anyone, it
doesn't require a global cabal to serve news. In the later days of
usenet it was overwhelmed by crap, largely because of the enormous
number of groups created by people who didn't have time to maintain
them, had a blanket anonymous publish policy, and eventually never
showed back up to take care of their lists.

You make it sound accidental. That's not the way I remember it.


What I am describing is the running of a newsgroup server specific to a
project or interest, say news.centos.org (or whatever for whatever).
Initial validation would be required (not unusual for mailing lists) for
initial posting, and after that unmoderated publication would be
permitted by a validated user. This is a simple system. Disabling
attachments and/or setting file/message size limits is trivial and is an
action which occurs in just one place (the server) and doesn't bother
the users.

So if you have 100 interests, you'd have to establish and maintain 100
logins and passwords - and configure them on every device/application
you use for access.  That's not my idea of convenience.


 From an anti-spam/security perspective a post/fetch system is simply
more suitable for noise-free discourse than email.

I just don't see the distinction other than having more possibility of
after-the-fact cleanup before delivery - and then only if someone goes
to the trouble of doing it and you are slow in your fetching.


That we have
forgotten that is likely more due to the timing of the web explosion in
the early 90's and the tech/generation gap it produced than anything
else.

Ummm, no.  There was always a lot more crap posted to usenet than there
is here.  Maybe you've forgotten that.


A news service with censorship might be OK.  Until they censor something
that you wanted to say or see.  Forums with rss feeds might be a middle
ground to centralize the reading side but there's still the issue of
standardizing the forum interfaces so you don't have to figure out how
to reply again for every interesting topic.

You have just described properly run newsgroups -- and why I am
suggesting them as a reasonable course of action which would resolve
spam issues not just within list, but limit everyone's exposure to spam
in their general mail boxes.

The protocol for the transfer doesn't really matter here.  What you
propose isn't particularly different than setting up local email service
with accounts for all users for every list.  That is, it would be
equally inconvenient and not solve any of the underlying problems.


Hmm... I am on a number of ML one of which is LKML and I find the amount of 
spam is miniscule in comparison to the
number of messages.

Also trying to keep up with all the topics and new threads on any forum I have 
been on seems much more difficult than
on any mailing list.

I have thunderbird setup to read mail threaded and if its a thread I am not 
interested a simple CTL-t marks any new messages
as read.

My $.02

Regards,
Steve

--
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*NetWolves*
Sr. Software Engineer III
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.cl...@netwolves.com
http://www.netwolves.com
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Re: [CentOS] Centos EL6 install issue

[Jerry Geis]

>
> How are you installing? CD, netinstall ?
>   
I am using the KVM virtual machine.
I then use the CDROM to get the boot process running at the first screen
I hit tab and add to the line:

 ks=http://IP/ks.cfg

My kickstart file
My file is:

#platform=x86, AMD64, or Intel EM64T
# System authorization information
auth  --useshadow  --enablemd5 
# System bootloader configuration
bootloader --location=mbr 
# Clear the Master Boot Record
zerombr
# Partition clearing information
clearpart --none  
# Use text install
text
# Firewall configuration
firewall --enabled --http --ssh --smtp  
# Run the Setup Agent on first boot
firstboot --disable
# System keyboard
keyboard us
# System language
lang en_US
# Installation logging level
logging --level=info
# Use network installation
url --url=http://IPofCourse/pxe-install/CentOS-6.0-x86_64
# Network information
network --bootproto=dhcp --device=eth0 --onboot=on
# Auto reboot (to being next install faze)
reboot 
#Root password
rootpw  mnkickstart
%include /tmp/partition-information
%include /tmp/timezone-information

repo --name=Updates --baseurl=http://IPofCourse/centos/6.0/updates/x86_64/

# SELinux configuration
selinux --disabled
# Install OS instead of upgrade
install
# X Window System configuration information
graphical

%pre 
HD1="/dev/sda"
HD1SHORT="sda"

# Virtual Image testing files
ROOTSIZE=8000
SWAPSIZE=1000
SWAPGROW=""
HOMEGROW=""

##Â Save partitioning information into file so include section can grab it.
echo "bootloader --location=mbr --driveorder=$HD1SHORT --append=\"rhgb quiet\"  
"   >  /tmp/partition-information
echo "clearpart --all --initlabel   
"   >> /tmp/partition-information
echo "part / --ondisk=$HD1SHORT --fstype ext4 --size=$ROOTSIZE --asprimary  
"   >> /tmp/partition-information
echo "part swap  --ondisk=$HD1SHORT   --size=$SWAPSIZE --asprimary 
$SWAPGROW"   >> /tmp/partition-information
if [ "$HOMEGROW" = "--grow" ]
then
echo "part /home --ondisk=$HD1SHORT --fstype ext4 --size=1 
--asprimary $HOMEGROW"   >> /tmp/partition-information
fi

%end

%packages
@additional-devel
@base
@compat-libraries
@debugging
@desktop-platform
@development
@fonts
@general-desktop
@graphical-admin-tools
@internet-browser
@mail-server
@network-tools
@office-suite
@security-tools
@server-platform
@web-server
@x11
gconf-editor
hmaccalc
iptstate
system-config-kickstart
vim-X11
-httpd-manual
-mod_perl
-mod_wsgi
sendmail
sendmail-cf
imake
-sysreport
ncurses-devel
compat-openldap
openldap-clients
vnc
tftp
tftp-server
dhcp
libxml2
libxml2-devel
lsscsi
alsa-lib-devel
crypto-utils
mod_ssl
openssl
tcl
tk
libX11
libX11-devel
libXext
ImageMagick
perl-XML-Parser

%end



Jerry
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Re: [CentOS] Centos EL6 install issue

[Lucian]

On Mon, Jul 18, 2011 at 6:51 PM, Jerry Geis  wrote:
> I am trying to install on a kvm virtual machine (host is C5).
>
> At some point it stops with install error about cyrus-sasl.
>
> I goto the /root/install.log in I have a number of errors about:
>
> Installing libstdc++
> warning %post scriplet failed. exit status 127
> Install zlib
> warning %post scriptlet failed. exit status 127
> Install libxml2
> warning %post scriplet failed. exit status 127
> this continues for a number of packages.
>
> then the last one is :
>
> Installing cyrus-sasl
> error %pre scriptlet failed. exit status 127
>
> Any thoughts on this?
>
>
> df -h shows my partition only 9% in use for where I'm installing.
> no errors in dmesg.
>
> Thanks,
>
>
> Jerry
>
>
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>

How are you installing? CD, netinstall ?
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Re: [CentOS] Spamhaus with Zimbra Mail on CentOS

[Rainer Duffner]

Am 18.07.2011 19:43, schrieb Alex Marz:
> Jul 18 13:25:51 phantom postfix/smtpd[4399]: warning: 
> 202.200.26.72.zen.spamhaus.org: RBL lookup error: Host or domain name not 
> found. Name service error for name=202.200.26.72.zen.spamhaus.org type=A: 
> Host not found, try again
>
>
>
> After doing some reading I've tried a number of DNS servers ( thinking the 
> issue may have been DNS poisoning )  all of which appear to be unable to 
> preform dig lookups the spamhaus hosts. Is anyone else seeing similar results?
>


If you query the spamhaus servers too often, you will be banned.
You have to pay (a considerable amount of money, last time we looked).

Other than that, better ask on the Zimbra forum...




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Re: [CentOS] Spamhaus with Zimbra Mail on CentOS

[Lucian]

On Mon, Jul 18, 2011 at 6:43 PM, Alex Marz  wrote:
> I realize this is slightly off topic, but I've noticed recently that I've 
> been unable to preform RBL lookups using the the zen and sbl spamhaus RBL 
> lists. Currently using Zimbra Collaboration Suite using CentOS 5 I'm seeing 
> logs showing the following output.
>
> [root@phantom ~]# cat /var/log/zimbra.log | grep spamhaus
> Jul 18 13:07:12 phantom postfix/smtpd[27001]: warning: 
> 107.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not 
> found. Name service error for name=107.178.203.192.zen.spamhaus.org type=A: 
> Host not found, try again

Works for me (I'm running Bind locally to resolve names), though
1.ns.spamhaus.org times out.

I'd suggest flushing the cache or change the resolver/try with a
different resolver.
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[CentOS] Centos EL6 install issue

[Jerry Geis]

I am trying to install on a kvm virtual machine (host is C5).

At some point it stops with install error about cyrus-sasl.

I goto the /root/install.log in I have a number of errors about:

Installing libstdc++
warning %post scriplet failed. exit status 127
Install zlib
warning %post scriptlet failed. exit status 127
Install libxml2
warning %post scriplet failed. exit status 127
this continues for a number of packages.

then the last one is :

Installing cyrus-sasl
error %pre scriptlet failed. exit status 127

Any thoughts on this?


df -h shows my partition only 9% in use for where I'm installing.
no errors in dmesg.

Thanks,


Jerry


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[CentOS] Spamhaus with Zimbra Mail on CentOS

[Alex Marz]

I realize this is slightly off topic, but I've noticed recently that I've been 
unable to preform RBL lookups using the the zen and sbl spamhaus RBL lists. 
Currently using Zimbra Collaboration Suite using CentOS 5 I'm seeing logs 
showing the following output.

[root@phantom ~]# cat /var/log/zimbra.log | grep spamhaus
Jul 18 13:07:12 phantom postfix/smtpd[27001]: warning: 
107.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=107.178.203.192.zen.spamhaus.org type=A: 
Host not found, try again
Jul 18 13:07:19 phantom postfix/smtpd[27001]: warning: 
22.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=22.178.203.192.zen.spamhaus.org type=A: Host 
not found, try again
Jul 18 13:09:11 phantom postfix/smtpd[28886]: warning: 
107.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=107.178.203.192.zen.spamhaus.org type=A: 
Host not found, try again
Jul 18 13:09:16 phantom postfix/smtpd[28886]: warning: 
22.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=22.178.203.192.zen.spamhaus.org type=A: Host 
not found, try again
Jul 18 13:15:52 phantom postfix/smtpd[32148]: warning: 
202.200.26.72.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=202.200.26.72.zen.spamhaus.org type=A: Host 
not found, try again
Jul 18 13:18:25 phantom postfix/smtpd[1093]: warning: 
26.93.98.14.zen.spamhaus.org: RBL lookup error: Host or domain name not found. 
Name service error for name=26.93.98.14.zen.spamhaus.org type=A: Host not 
found, try again
Jul 18 13:19:29 phantom postfix/smtpd[1093]: warning: 
202.200.26.72.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=202.200.26.72.zen.spamhaus.org type=A: Host 
not found, try again
Jul 18 13:25:51 phantom postfix/smtpd[4399]: warning: 
202.200.26.72.zen.spamhaus.org: RBL lookup error: Host or domain name not 
found. Name service error for name=202.200.26.72.zen.spamhaus.org type=A: Host 
not found, try again



After doing some reading I've tried a number of DNS servers ( thinking the 
issue may have been DNS poisoning )  all of which appear to be unable to 
preform dig lookups the spamhaus hosts. Is anyone else seeing similar results?
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Re: [CentOS] Wireless Interface Does Not Connect Automatically At StartUp

[Cody Jackson]

Hi Manish;

I've never tried NM during boot. (Personally, I dislike NM at all.)
You might find a system similar to this to be more of your liking:

http://wiki.centos.org/HowTos/Laptops/WpaSupplicant

I use this in place of my CentOS 6 backup server, which has an
rt2500pci card in it--which, by the way, is a horrible shoddy card
that I do not recommend. It doesn't play nice with Netgear APs. But I
digress.

CentOS 6 appears to have made some changes to the above document. What
I've discovered is:

1. You don't need to edit ifup-wireless.
2. You don't need to edit ifconfig-* (although one should be
created--I can post mine if it'll help you.)
3. All you need in /etc/rc.local is an 'ifup wlan0' line.
4. You DO need to edit /etc/sysconfig/wpa_supplicant and add the
interface of your wireless card to the options there (example:
-iwlan0).
5. wpa_supplicant should be ENABLED on boot.

I also found out that I actually have editing rights on that page, so
I'll post my experiences in the next day or so. I hope this helps.

Cheers,
Cody Jackson


On 7/18/11, Manish Kathuria  wrote:
> I have recently installed CentOS 6 on a system with  a Realtek 8180L
> wireless card. The wireless card is detected properly and uses the
> rtl8180 driver. But it connects to our wireless network only after
> logging to the Desktop Environment (GNOME) and using the Network
> Manager Applet. In order to make the wireless card connect to the
> network automatically at system start up, I edited the Connection
> using the Network Manager Applet and checked "Connect Automatically"
> and "Available to all users" options.  However, while booting the
> system, the following error message is displayed when the wireless
> network interface is brought up.
>
> Device does not seem to be present, delaying initialization
>
> But as soon as a user logs on to the Desktop, he can connect to the
> network using the NM Applet.
>
> I have also toggled between using DHCP and Static IP Address for the
> the wireless card but it makes no difference. The SSID is not being
> broadcast and the Wireless Access Point / Router uses WPA-PSK.
>
> TIA,
> --
> Manish Kathuria
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[CentOS] Wireless Interface Does Not Connect Automatically At StartUp

[Manish Kathuria]

I have recently installed CentOS 6 on a system with  a Realtek 8180L
wireless card. The wireless card is detected properly and uses the
rtl8180 driver. But it connects to our wireless network only after
logging to the Desktop Environment (GNOME) and using the Network
Manager Applet. In order to make the wireless card connect to the
network automatically at system start up, I edited the Connection
using the Network Manager Applet and checked "Connect Automatically"
and "Available to all users" options.  However, while booting the
system, the following error message is displayed when the wireless
network interface is brought up.

Device does not seem to be present, delaying initialization

But as soon as a user logs on to the Desktop, he can connect to the
network using the NM Applet.

I have also toggled between using DHCP and Static IP Address for the
the wireless card but it makes no difference. The SSID is not being
broadcast and the Wireless Access Point / Router uses WPA-PSK.

TIA,
-- 
Manish Kathuria
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Re: [CentOS] EL6, xinetd, and permissions. What am I missing?

[m . roth]

Benjamin Smith wrote:
> Staging for a rollout of EL 6, and ran into a very strange permissions
> issue with xinetd that defies all (my) logic.

You're not using access controls lists, are you? And if this is accessed
via httpd, is the php directory visible in the apache configuration?

mark

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Re: [CentOS] SPAM on the List

[m . roth]

夜神 岩男 wrote:
> On Mon, 2011-07-18 at 10:54 -0500, Les Mikesell wrote:
>> On 7/18/2011 10:27 AM, 夜神 岩男 wrote:
>> >

>> > So... what is wrong with newsreaders? In my experience the provide all
>> > the benefits of email (speed, uniform interface, etc.) that you listed
>> > as well as all the benefits of a post/fetch paradigm that I get from
>> > forums without any of the hassles of either.
>>
>> Interesting that you bring this up in the context of spam.  The problem
>> with net news is that all of the servers stopped handling it because of
>> the porn and copyright-infringing binaries postings that overwhelm it.
>
> Newsreaders require a news server. News servers can be run by anyone, it
> doesn't require a global cabal to serve news. In the later days of
> usenet it was overwhelmed by crap, largely because of the enormous
> number of groups created by people who didn't have time to maintain
> them, had a blanket anonymous publish policy, and eventually never
> showed back up to take care of their lists. Lists such as that got
> swamped, and so did the servers, which made the whole system unweidly
> (though news server networks are still run today and moderation via user
> validation is still an option).

The beginning of its downhill slide, IMO, was when AOL got on. I remember
that happening: AOL auto-subscribed *all* its users to certain newsgroups,
and for some utterly clueless reason, that included alt.best.of.internet.
I occasionally dipped into that group, and the flamewars started then,
with idiots announcing that they could post anything they wanted, anywhere
they wanted. That, and the Green Card Spam, where K&S proclaimed that
there was no such thing as "community", that it was all the wild west.
>
> What I am describing is the running of a newsgroup server specific to a
> project or interest, say news.centos.org (or whatever for whatever).

A big eight newsgroup, moderated, is what this sounds like. Let me note
that if you want, I can point you to a quite good robomoderator: it
approves regular posters, checks new for on-topic, and if it can't make up
its mind, forwards it to designated human moderators.


 mark

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Re: [CentOS] EL6, xinetd, and permissions. What am I missing?

[Eero Volotinen]

2011/7/18 Benjamin Smith :
> Staging for a rollout of EL 6, and ran into a very strange permissions issue
> with xinetd that defies all (my) logic.
>
> It's a script called "spfiled" that we use for messaging between our server
> cluster servers. I'm trying to get it to run with "least permissions
> necessary". Because it reads/writes files in conjunction with a web-based
> service, it runs as user "apache".
>
> Here's my xinet.d/spfiled.conf: (this is in dev, each developer has his own
> number)
>
>  spfiled.conf ##
>
> service spfiled461
>
> {
>
> socket_type = stream
>
> wait = no
>
> user = apache
>
> group = apache
>
> server = /path/to/filed.php
>
> protocol = tcp
>
> disable = no
>
> bind = 192.168.3.2
>
> port = 12461
>
> banner_fail = /path/to/banner_fail.txt
>
> cps = 1 0
>
> max_load = 10.0
>
> }
>
>  spfiled.conf ##
>
> Here's the permissions of the script:
>
> # ls -laFd /path/to/filed.php
>
> -rwxr-xr-- 1 bens apache 18042 Jan 7 2011 filed.php
>
> When I restart xinetd, I see in system log:
>
>  /var/log/messages ##
>
> Jul 18 16:32:25 bender xinetd[17830]: Server /path/to/filed.php is not
> executable [file=/etc/xinetd.d/spfiled461] [line=11]
>
> Jul 18 16:32:25 bender xinetd[17830]: Error parsing attribute server -
> DISABLING SERVICE [file=/etc/xinetd.d/spfiled461] [line=11]
>
> I've turned off SELinux completely.
>
> # setenforce 0;
>
> Strangely, setting permissions to o+x and it starts up fine, but I don't
> want to leave permissions that open.

rx to owner is enought

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Re: [CentOS] SPAM on the List

[Les Mikesell]

On 7/18/2011 11:25 AM, 夜神 岩男 wrote:
>
>> So do you typically provide helpful answers to forum questions sooner
>> after they are posted when you have to forum-hop than you would if they
>> land in your inbox or later?
>
> Obviously some level of activity must be maintained within a community
> to ensure decent response times, but newer communities such as Ubuntu
> have found forums to be a fairly useful thing. The forum community there
> is doing well and questions get answered at a reasonable pace -- with
> the added benefit that when someone goes on vacation they have no box
> that needs filtering, unsubscribing, setting in a vacation state, etc.
> to protect from lists or spam. Outside of the tech world forums have
> proven themselves durable and usable for help and feedback purposes --
> overwhelmingly so.

I don't think Ubuntu is a reasonable project example unless you can come 
up with a way to match it's resources, which I believe include paid 
participants.  Who is going to hover over a forum waiting to answer 
questions otherwise?

>>> So... what is wrong with newsreaders? In my experience the provide all
>>> the benefits of email (speed, uniform interface, etc.) that you listed
>>> as well as all the benefits of a post/fetch paradigm that I get from
>>> forums without any of the hassles of either.
>>
>> Interesting that you bring this up in the context of spam.  The problem
>> with net news is that all of the servers stopped handling it because of
>> the porn and copyright-infringing binaries postings that overwhelm it.
>
> Newsreaders require a news server. News servers can be run by anyone, it
> doesn't require a global cabal to serve news. In the later days of
> usenet it was overwhelmed by crap, largely because of the enormous
> number of groups created by people who didn't have time to maintain
> them, had a blanket anonymous publish policy, and eventually never
> showed back up to take care of their lists.

You make it sound accidental. That's not the way I remember it.

> What I am describing is the running of a newsgroup server specific to a
> project or interest, say news.centos.org (or whatever for whatever).
> Initial validation would be required (not unusual for mailing lists) for
> initial posting, and after that unmoderated publication would be
> permitted by a validated user. This is a simple system. Disabling
> attachments and/or setting file/message size limits is trivial and is an
> action which occurs in just one place (the server) and doesn't bother
> the users.

So if you have 100 interests, you'd have to establish and maintain 100 
logins and passwords - and configure them on every device/application 
you use for access.  That's not my idea of convenience.

> From an anti-spam/security perspective a post/fetch system is simply
> more suitable for noise-free discourse than email.

I just don't see the distinction other than having more possibility of 
after-the-fact cleanup before delivery - and then only if someone goes 
to the trouble of doing it and you are slow in your fetching.

> That we have
> forgotten that is likely more due to the timing of the web explosion in
> the early 90's and the tech/generation gap it produced than anything
> else.

Ummm, no.  There was always a lot more crap posted to usenet than there 
is here.  Maybe you've forgotten that.

>> A news service with censorship might be OK.  Until they censor something
>> that you wanted to say or see.  Forums with rss feeds might be a middle
>> ground to centralize the reading side but there's still the issue of
>> standardizing the forum interfaces so you don't have to figure out how
>> to reply again for every interesting topic.
>
> You have just described properly run newsgroups -- and why I am
> suggesting them as a reasonable course of action which would resolve
> spam issues not just within list, but limit everyone's exposure to spam
> in their general mail boxes.

The protocol for the transfer doesn't really matter here.  What you 
propose isn't particularly different than setting up local email service 
with accounts for all users for every list.  That is, it would be 
equally inconvenient and not solve any of the underlying problems.

-- 
   Les Mikesell
lesmikes...@gmail.com



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Re: [CentOS] SPAM on the List

[Christopher Chan]

On Monday, July 18, 2011 11:29 PM, 夜神 岩男 wrote:
> On Mon, 2011-07-18 at 22:17 +0800, Christopher Chan wrote:
>> On Monday, July 18, 2011 09:19 PM, Stephen Harris wrote:
>>
>> SPAM-L is that way ==>  oh wait, it's dead...
>>
>> Maybe we can keep discussions about blackhat, incompetent networks,
>> about SMTP, open proxies/relays, honeypots and what have you off this list?
>>
>> Just limit it to sendmail/postfix/exim configuration if you have to
>> discuss these things but please leave everything else outside in
>> NANAE/your favourite spitting pot.
>
> You wouldn't be insinuating that "[CentOS] SPAM on the list" has become
> SPAM on the list now, would you?
>

Kinda hard...I mean, SPAM is edible you know and I don't remember being 
able to transport SPAM over email.

But it has become offtopic and is no longer relevant to Centos. We don't 
need another SPAM-L/NANAE/whatever
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Re: [CentOS] SPAM on the List

[Devin Reade]

--On Sunday, July 17, 2011 10:37:53 PM -0400 Stephen Harris
 wrote:

> RFC2821 says:
>-  The domain name given in the EHLO command MUST BE either a primary
>   host name (a domain name that resolves to an A RR) or, if the host
>   has no name, an address literal as described in section 4.1.1.1.
> 
> So, pretty much, HELO or EHLO greeting _must_ match to an IP.
> 
> (RFC821 actually wanted the HELO to match the connecting host, but
> 2821 just says it must be an A record or an address literal).

Thank you for posting that.

Despite the garden path we got down, my previous comments didn't say
that you had to accept *anything*, but merely that too stringent of a
check would eliminate some valid mailers.  There's nothing like 
stirring a can of worms :)

Devin

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[CentOS] EL6, xinetd, and permissions. What am I missing?

[Benjamin Smith]

Staging for a rollout of EL 6, and ran into a very strange permissions issue 
with xinetd that defies all (my) logic. 

It's a script called "spfiled" that we use for messaging between our server 
cluster servers. I'm trying to get it to run with "least permissions 
necessary". Because it reads/writes files in conjunction with a web-based 
service, it runs as user "apache". 

Here's my xinet.d/spfiled.conf: (this is in dev, each developer has his own 
number)
 spfiled.conf ## 
service spfiled461
{
socket_type = stream
wait= no
user= apache
group   = apache
server  = /path/to/filed.php
protocol= tcp
disable = no
bind= 192.168.3.2
port= 12461
banner_fail = /path/to/banner_fail.txt
cps = 1 0 
max_load= 10.0
}
 spfiled.conf ## 


Here's the permissions of the script: 
# ls -laFd /path/to/filed.php
-rwxr-xr-- 1 bens apache 18042 Jan  7  2011 filed.php


When I restart xinetd, I see in system log: 
 /var/log/messages ## 
Jul 18 16:32:25 bender xinetd[17830]: Server /path/to/filed.php is not 
executable [file=/etc/xinetd.d/spfiled461] [line=11]
Jul 18 16:32:25 bender xinetd[17830]: Error parsing attribute server - 
DISABLING SERVICE [file=/etc/xinetd.d/spfiled461] [line=11]


I've turned off SELinux completely. 
# setenforce 0; 

Strangely, setting permissions to o+x and it starts up fine, but I don't want 
to leave permissions that open. 

What am I missing? 

-- 
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dangerous content by MailScanner, and is
believed to be clean.

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Re: [CentOS] Upgrade from CentOS 5.4 to 5.6

[Les Mikesell]

On 7/18/2011 10:37 AM, Ljubomir Ljubojevic wrote:
>
 So, how can I get it my CentOS from 5.6 to 6.0?
>>> Backup data
>>> Clean install
>>> Restore data.
>>
>> You left out the hard part which is ensuring that 'data' does not
>> conflict with any new files from the 6.x install, which anything under
>> /etc or /var most likely will, and then making sure that the parts of
>> 'data' that you need from those conflicting files are added back in a
>> compatible way, which will generally be non-trivial.
>>
> Less, are you talking about user data (meant by Brian) or about config
> data of the system?

The system isn't going to work the way you expect until you do both, so 
I guess the answer is 'yes'.

You can sort-of generalize about how to handle your config data under 
/etc and all of the application dot-files in home directories, and your 
databases and applications with data under /var, but there are a lot of 
special cases.

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Re: [CentOS] SPAM on the List

[夜神 岩男]

On Mon, 2011-07-18 at 10:54 -0500, Les Mikesell wrote:
> On 7/18/2011 10:27 AM, 夜神 岩男 wrote:
> >
> >> (6) Having to visit a web site and then log-on if one wants to respond.
> >
> > I keychain the logins (I think most browsers have a function like this
> > now -- I think even elinks does, and elinks is a great way to browse
> > forums, btw) and don't worry too much with it after that.
> 
> So do you typically provide helpful answers to forum questions sooner 
> after they are posted when you have to forum-hop than you would if they 
> land in your inbox or later?

Obviously some level of activity must be maintained within a community
to ensure decent response times, but newer communities such as Ubuntu
have found forums to be a fairly useful thing. The forum community there
is doing well and questions get answered at a reasonable pace -- with
the added benefit that when someone goes on vacation they have no box
that needs filtering, unsubscribing, setting in a vacation state, etc.
to protect from lists or spam. Outside of the tech world forums have
proven themselves durable and usable for help and feedback purposes --
overwhelmingly so.

> > I find this to be a *lot* less trouble than twisting my email setup into
> > something email was never intended to be.
> 
> Email wasn't intended for receiving messages and replying?  Hmmm...

It was designed precisely to do those things. What was described by the
previous poster was time consuming contrivances with the specific intent
of limiting the receipt of messages -- which is exactly half of the
specification as you stated it.

> > So... what is wrong with newsreaders? In my experience the provide all
> > the benefits of email (speed, uniform interface, etc.) that you listed
> > as well as all the benefits of a post/fetch paradigm that I get from
> > forums without any of the hassles of either.
> 
> Interesting that you bring this up in the context of spam.  The problem 
> with net news is that all of the servers stopped handling it because of 
> the porn and copyright-infringing binaries postings that overwhelm it.

Newsreaders require a news server. News servers can be run by anyone, it
doesn't require a global cabal to serve news. In the later days of
usenet it was overwhelmed by crap, largely because of the enormous
number of groups created by people who didn't have time to maintain
them, had a blanket anonymous publish policy, and eventually never
showed back up to take care of their lists. Lists such as that got
swamped, and so did the servers, which made the whole system unweidly
(though news server networks are still run today and moderation via user
validation is still an option).

What I am describing is the running of a newsgroup server specific to a
project or interest, say news.centos.org (or whatever for whatever).
Initial validation would be required (not unusual for mailing lists) for
initial posting, and after that unmoderated publication would be
permitted by a validated user. This is a simple system. Disabling
attachments and/or setting file/message size limits is trivial and is an
action which occurs in just one place (the server) and doesn't bother
the users.

From an anti-spam/security perspective a post/fetch system is simply
more suitable for noise-free discourse than email. That we have
forgotten that is likely more due to the timing of the web explosion in
the early 90's and the tech/generation gap it produced than anything
else.

> A news service with censorship might be OK.  Until they censor something 
> that you wanted to say or see.  Forums with rss feeds might be a middle 
> ground to centralize the reading side but there's still the issue of 
> standardizing the forum interfaces so you don't have to figure out how 
> to reply again for every interesting topic.

You have just described properly run newsgroups -- and why I am
suggesting them as a reasonable course of action which would resolve
spam issues not just within list, but limit everyone's exposure to spam
in their general mail boxes.

-Iwao

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Re: [CentOS] Burning DVDs

[John Doe]

From: Ljubomir Ljubojevic 

> Udo Siewert wrote:
>>  A shot in the dark: my DVD image burned by K3B won't also boot. Using
>>  Brasero and all was fine. Not reproducable, but worth the attempt.
> All 3 DVD-s (2 x x86_64 + i386) are burned on K3B 0.12.17 on CentOS 5.6.
> x86_64 is tested and works. i386 not yet tested but it passed K3B 
> verification.


Here, latest k3b on 5.6 did not like my DVD-Rs for some reason...  could not 
even start burning.
I used the 'CD/DVD Creator' and it worked.
Only difference I could think of is that the slowest in k3b was 1x, while it 
was 0.4x in 'CD/DVD Creator'...

JD
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Re: [CentOS] Kernel panic - not syncing: Attempted to kill init! after installation of Driver Diskette for enabling Onboard RAID Controller Chipset

[Ljubomir Ljubojevic]

Kaushal Shriyan wrote:
> On Mon, Jul 18, 2011 at 6:59 PM, Kaushal Shriyan
>  wrote:
>> On Fri, Jul 15, 2011 at 11:47 AM, John R Pierce  wrote:
>>> Configure the BIOS for AHCI native SATA, and use linux native raid.  See
>>> http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5?highlight=%28RAID%29
>>>
>> Hi Again,
>>
>> I did some changes, i just created two partitions / and swap using the
>> Anaconda Installer, it worked fine after loading boot loader GRUB and
>> then after it stopped at Kernel Panic.
>>
>> device—mapper: dm—raid15: initialized v0.25941
>> Waiting for driver initialization
>> Scanning and configuring dnraid supported devices
>> Trying to resume from (LABEL=SWAP-sda2)
>> Unable to access resume device (L‘*wmVgW_¢;"1iZ)
>> Creating root device.
>> Hounting root filesystem.
>> EXT3—fs error (device sdc1) : ext3_check_descriptors: Block bitmap for group 
>> 296
>> not in group (block 231211688)!
>> EXT3~fs1 group descriptors corrupted!
>> mount: error mounting /dev/root on /sysroot as ext3: Invalid argument
>> Setting up other filesystems.
>> Setting up new root fs
>> setuproot: moving /dev failed: No such file or directory
>> no fstab.sys, mounting internal defaults
>> setuproot: error mounting /proc: No such file or directory
>> setuproot: error mounting /sys: No such file or directory
>> Suitching to new root and running init.
>> unmounting old /dev
>> unmounting old /proc
>> unmounting old /sys
>> suitchrootr mount failed: No such file or directory
>> Kernel panic — not syncing: Attempted to kill init!
>>
>> Please suggest further. is there a way to create customized initrd for
>> this default kernel available on CentOS 5.6
>>
>> Thanks and Regards,
>>
>> Kaushal
>>
> 
> Hi Again,
> 
> I have read this on the forums and it explained as below.
> 
> Probably need to get that module into your initrd. The computer, upon
> booting, loads a kernel image and an initial ramdisk. the latter is a
> compressed filesystem image that the bootloader just maps into memory,
> and it holds a number of kernel modules and helper programs for the
> kernel you are booting. if it does not contain the kernel module
> that's driving your RAID controller, the kernel won't ever be able to
> recognize your disk array, because it
> lacks the proper driver for it that's why the initrd's helper programs
> are panicking - they are trying to mount a crucial filesystem from a
> device which just isn't there it cannot continue, and bails with a
> big, fat error
> 
> Somehow need to include the driver you loaded from the USB thumb drive
> during installation during booting your system (most probably from
> within
> the initrd) . probably need to get that module into the initrd.
> 
> Please guide/suggest further.
> 
You were suggested to use SOFTWARE LINUX RAID = mdraid, not to attempt 
to install driver for your RAID.

1. Have you set your RAID controller to AHCI mode?

2. Have you created Software RAID partitions and then created EXT4 
partitions on top of the Software RAID (mdraid)?

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Re: [CentOS] CUPS LAN printing problem (from Vista)

[Keith Roberts]

On Mon, 18 Jul 2011, Ljubomir Ljubojevic wrote:

> To: CentOS mailing list 
> From: Ljubomir Ljubojevic 
> Subject: Re: [CentOS] CUPS LAN printing problem (from Vista)
> 
> Keith Roberts wrote:
>> I have my main machine running Centos 5.6, and it has a HP
>> Deskjet 810c printer physically attached to it. CUPSD
>> broadcasts in on my LAN as the default printer. I can print
>> to the default HP printer over the LAN, from a laptop
>> running Centos 5.6.
>>
>> However, I do have problems trying to print to this
>> same printer over the LAN, from a laptop running
>> M$ Vista.
>
> What does this mean? "My car wont run, what should I do to make it run???"
>
> Can you provide a lot more info?

Hi Ljubomir.

Thankyou for your reply.

Yes I can provide more info - like Wireshark screenshots and 
error messages. But all I need to know now is this possible 
or not? Which Mark has told me it is. So I'm not actually 
asking anyone on the list to solve it for me.

Now I know it's possible, I won't be wasting my time by 
seeking a solution to resolve this problem myself.

Kind Regards,

Keith

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Re: [CentOS] CUPS LAN printing problem (from Vista)

[Keith Roberts]

On Mon, 18 Jul 2011, m.r...@5-cent.us wrote:

> To: CentOS mailing list 
> From: m.r...@5-cent.us
> Subject: Re: [CentOS] CUPS LAN printing problem (from Vista)
> 
> Keith Roberts wrote:
>> I have my main machine running Centos 5.6, and it has a HP
>> Deskjet 810c printer physically attached to it. CUPSD
>> broadcasts in on my LAN as the default printer. I can print
>> to the default HP printer over the LAN, from a laptop
>> running Centos 5.6.
>>
>> However, I do have problems trying to print to this
>> same printer over the LAN, from a laptop running
>> M$ Vista.
>>
>> Has anyone been able to print from a machine running M$
>> Windoze Vista to their CUPS LAN printer running on Centos
>> 5.x please. All I need to know is yes, this works, or no
>> it's not possible.
> 
> Dunno 'bout 5.6, but 5.4, 5.5, sure. We had people doing that.

Thanks Mark - that's all I need to know.

If it works for 5.4/5 there's not reason for it not to work 
on 5.6

Now I know it's possible to do, I will spend time on reading 
the documentation and seeking a solution myself.

I'm not looking to be spoon fed three times daily - LOL!

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Re: [CentOS] SPAM on the List

[Les Mikesell]

On 7/18/2011 10:27 AM, 夜神 岩男 wrote:
>
>> (6) Having to visit a web site and then log-on if one wants to respond.
>
> I keychain the logins (I think most browsers have a function like this
> now -- I think even elinks does, and elinks is a great way to browse
> forums, btw) and don't worry too much with it after that.

So do you typically provide helpful answers to forum questions sooner 
after they are posted when you have to forum-hop than you would if they 
land in your inbox or later?

> I find this to be a *lot* less trouble than twisting my email setup into
> something email was never intended to be.

Email wasn't intended for receiving messages and replying?  Hmmm...

> So... what is wrong with newsreaders? In my experience the provide all
> the benefits of email (speed, uniform interface, etc.) that you listed
> as well as all the benefits of a post/fetch paradigm that I get from
> forums without any of the hassles of either.

Interesting that you bring this up in the context of spam.  The problem 
with net news is that all of the servers stopped handling it because of 
the porn and copyright-infringing binaries postings that overwhelm it.

> That we aren't communicating through a newsgroup has always been
> puzzling to me for the exact reasons that you and I both listed. If we
> were to design a new protocol to solve both problems it would likely
> turn out to be very like newsgroups -- yet we don't use them and they
> exist and are easy to set up.

A news service with censorship might be OK.  Until they censor something 
that you wanted to say or see.  Forums with rss feeds might be a middle 
ground to centralize the reading side but there's still the issue of 
standardizing the forum interfaces so you don't have to figure out how 
to reply again for every interesting topic.

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Re: [CentOS] About I386 not fitting on one DVD

[Ljubomir Ljubojevic]

Lamar Owen wrote:
> On Sunday, July 17, 2011 01:31:51 AM John R Pierce wrote:
> Super minor correction: 486SX's at 16 and 20 MHz were available. And I 
> think a 120MHz variation of 486DX4.  And then there was AMD's 5x86 at 133MHz. 
>  We have a few embedded boards running controllers that are still running 
> 5x86's at 133MHz; about the same speed as a Pentium 75.
> 
Actually, 120MHz was AMD's baby and they achieved it with overclocking 
Bus from 33MHz to 40MHz (VLB only?).

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Re: [CentOS] SPAM on the List

[Always Learning]

On Tue, 2011-07-19 at 00:27 +0900, 夜神 岩男 wrote:

>> (1) Spyware : logging every access with Google the USA's
>> international spying operation.

> Mailing lists do not avoid this (if they do, please explain how),
> particularly now that Google has people using its own parallel DNS
> service (!o!) and runs infrastructure that most of these tech mailing
> lists touch at some point. At this point I doubt that there is a
> message sent that doesn't touch or at least bounce toward a
> Google-owned server somewhere.

Not the message contents but the IP address, browser details of the user
reading the forum. All added to the user's IP record at Google
Monitoring.


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With best regards,

Paul.
England,
EU.


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Re: [CentOS] cent0s-6 and virtualbox

[Ljubomir Ljubojevic]

James Hogarth wrote:
>> Indication was when they supported (or just
>> forced, cant remember witch) Virtualization only on x86_64 on
>> RHEL/CentOS 5.x.
>>
> 
> They only support KVM as a host technology for virtualization now. KVM
> requires the CPU virtualization extensions to function. The functions
> are only available on the CPU when in 64bit (long) mode.
> 
> There are sound technical reasons for this and it wasn't just them
> being stubborn to drop an architecture.
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> 
> 
I had (and still do) rpm packages (kvm-84-1.i386) for KVM on 32-bit 
platform, made by L. Farkas. I used it successfully up to 5.4 (I think) 
when I reinstalled my server and used x86_64 version. Maybe those 
requirements are of the newer date?

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Re: [CentOS] Upgrade from CentOS 5.4 to 5.6

[Ljubomir Ljubojevic]

Les Mikesell wrote:
> On 7/18/2011 9:08 AM, Brunner, Brian T. wrote:
>> centos-boun...@centos.org wrote:
>>> Hi all,
>>>
>>> So, how can I get it my CentOS from 5.6 to 6.0?
>> Backup data
>> Clean install
>> Restore data.
> 
> You left out the hard part which is ensuring that 'data' does not 
> conflict with any new files from the 6.x install, which anything under 
> /etc or /var most likely will, and then making sure that the parts of 
> 'data' that you need from those conflicting files are added back in a 
> compatible way, which will generally be non-trivial.
> 
Less, are you talking about user data (meant by Brian) or about config 
data of the system?

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Re: [CentOS] CUPS LAN printing problem (from Vista)

[Ljubomir Ljubojevic]

Keith Roberts wrote:
> I have my main machine running Centos 5.6, and it has a HP 
> Deskjet 810c printer physically attached to it. CUPSD 
> broadcasts in on my LAN as the default printer. I can print 
> to the default HP printer over the LAN, from a laptop 
> running Centos 5.6.
> 
> However, I do have problems trying to print to this 
> same printer over the LAN, from a laptop running 
> M$ Vista.

What does this mean? "My car wont run, what should I do to make it run???"

Can you provide a lot more info?

I think Windows still needs driver for that printer. When you add 
network printer from another Windows driver is installed automatically. 
Do you have Vista driver installed for that printer? Do you see the 
printer at all

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Re: [CentOS] CUPS LAN printing problem (from Vista)

[m . roth]

Keith Roberts wrote:
> I have my main machine running Centos 5.6, and it has a HP
> Deskjet 810c printer physically attached to it. CUPSD
> broadcasts in on my LAN as the default printer. I can print
> to the default HP printer over the LAN, from a laptop
> running Centos 5.6.
>
> However, I do have problems trying to print to this
> same printer over the LAN, from a laptop running
> M$ Vista.
>
> Has anyone been able to print from a machine running M$
> Windoze Vista to their CUPS LAN printer running on Centos
> 5.x please. All I need to know is yes, this works, or no
> it's not possible.

Dunno 'bout 5.6, but 5.4, 5.5, sure. We had people doing that.

 mark

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Re: [CentOS] SPAM on the List

[夜神 岩男]

On Mon, 2011-07-18 at 22:17 +0800, Christopher Chan wrote:
> On Monday, July 18, 2011 09:19 PM, Stephen Harris wrote:
> 
> SPAM-L is that way ==> oh wait, it's dead...
> 
> Maybe we can keep discussions about blackhat, incompetent networks, 
> about SMTP, open proxies/relays, honeypots and what have you off this list?
> 
> Just limit it to sendmail/postfix/exim configuration if you have to 
> discuss these things but please leave everything else outside in 
> NANAE/your favourite spitting pot.

You wouldn't be insinuating that "[CentOS] SPAM on the list" has become
SPAM on the list now, would you?

-Iwao

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Re: [CentOS] SPAM on the List

[夜神 岩男]

On Mon, 2011-07-18 at 15:00 +0100, Always Learning wrote:

> In the example I mentioned, it was a specially created single purpose
> email SMTP address (no POP etc.) used just once about 5? months ago. It
> is easy for me to block it as the mail server (MTA Mail Transfer Agent)
> which I have done.

An address can get snagged once after a single use and spammed months
later. Creating a plethora of special use email accounts is, in my
opinion, simply too much effort when the original design of email was to
create a public address that anyone can contact the owner through. 

> We are no so liberal with mailboxes. Some can be accessed only by prior
> approved senders. Others, because they are single purpose email
> addresses, can be permanently blocked after the first unwanted email.
> Some email addresses are created with sub-domains that can be dropped at
> the first abuse then replaced by new sub-domains.

Getting too creative with email protections reduces the primary
functionality it was invented to provide.

> > The difference between deposit/fetch and send/receive is profound. This
> > is part of why I'm surprised that newsreaders and forums have fallen
> > from favor amongst technical discussion groups. The "Logging into forums
> > is a PITA" or "setting up another client is a PITA" arguments obviously
> > won the debate -- though I think spam is a lot deeper into PITA
> > territory than either at the present time.
> 
> The problems with forums are, in my personal opinion:-
> 
> (1) Spyware : logging every access with Google the USA's international
> spying operation.

Mailing lists do not avoid this (if they do, please explain how),
particularly now that Google has people using its own parallel DNS
service (!o!) and runs infrastructure that most of these tech mailing
lists touch at some point. At this point I doubt that there is a message
sent that doesn't touch or at least bounce toward a Google-owned server
somewhere.

> (2) Advertisements

On a bad forum, yes. On good ones, no. The advertising thing is
ridiculous and a symptom of our community not realizing how easy it is
to self-host forums for free (or newsgroups -- but more on that later).

> (3) tiny text difficult to read

On bad forums, maybe. I haven't been to a site I found difficult to
read, come to think of it, but I'm sure there are some administrators
out there who don't understand the concepts of usability. Anyway, you
can generally control your mail display settings and forums would
present a potentially mixed bag unless the community settled on a rough
standard, so I can see your point here.

> (4) Pop-up windows

On unbearably crap forums, maybe. I've never experienced this (Firefox
always saved me or there just were never pop ups? No idea), but if any
official project decided to use forums as a primary communication means
and put not just ads, but *pop-up ads* on their site -- wow...

> (5) Layout not conducive to easy and quick reading.

The free-form layout of mailing lists (top/bottom/mid posting all
mishmashed) is far less conducive to organized eye movements, in my
experience. Obviously, you and I may have adapted differently, though I
find neither difficult.

> (6) Having to visit a web site and then log-on if one wants to respond.

I keychain the logins (I think most browsers have a function like this
now -- I think even elinks does, and elinks is a great way to browse
forums, btw) and don't worry too much with it after that.

I find this to be a *lot* less trouble than twisting my email setup into
something email was never intended to be.

> Conversely:-
> 
> Email Lists are quick, easy, immediate (certainly for my set-up),
> require no extra effort.  Should the address get spammed, then its one
> quick and simple change:-
> 
> (a) replacement DNS sub-domain
> 
> (b) update Mailman
> 
> (c) change email address in email client.

Again, far too much trouble.

So... what is wrong with newsreaders? In my experience the provide all
the benefits of email (speed, uniform interface, etc.) that you listed
as well as all the benefits of a post/fetch paradigm that I get from
forums without any of the hassles of either.

That we aren't communicating through a newsgroup has always been
puzzling to me for the exact reasons that you and I both listed. If we
were to design a new protocol to solve both problems it would likely
turn out to be very like newsgroups -- yet we don't use them and they
exist and are easy to set up.

Anyway, interesting response. Cheers.

-Iwao

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[CentOS] CUPS LAN printing problem (from Vista)

[Keith Roberts]

I have my main machine running Centos 5.6, and it has a HP 
Deskjet 810c printer physically attached to it. CUPSD 
broadcasts in on my LAN as the default printer. I can print 
to the default HP printer over the LAN, from a laptop 
running Centos 5.6.

However, I do have problems trying to print to this 
same printer over the LAN, from a laptop running 
M$ Vista.

Has anyone been able to print from a machine running M$ 
Windoze Vista to their CUPS LAN printer running on Centos 
5.x please. All I need to know is yes, this works, or no 
it's not possible.

The other alternavie and easiest way is for me to buy a USB 
printer cable, and just connect directly from the Vista 
laptop to the HP printer using that.

Kind Regards,

Keith Roberts

-
Websites:
http://www.karsites.net
http://www.php-debuggers.net
http://www.raised-from-the-dead.org.uk

All email addresses are challenge-response protected with
TMDA [http://tmda.net]
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Re: [CentOS] About I386 not fitting on one DVD

[Lamar Owen]

On Sunday, July 17, 2011 01:31:51 AM John R Pierce wrote:
> I386 was the original 386 CPU, which ran at speeds from 16 to 33Mhz
> i486 includes a few additional instructions on the 486 processor, and 
> IIRC, ran at speeds from 25 to 100Mhz

Super minor correction: 486SX's at 16 and 20 MHz were available. And I 
think a 120MHz variation of 486DX4.  And then there was AMD's 5x86 at 133MHz.  
We have a few embedded boards running controllers that are still running 5x86's 
at 133MHz; about the same speed as a Pentium 75.

> i586 is the original pentium, at 60, 66, 90, 100 up to about 133Mhz

233 is the fastest Pentium MMX I've seen.  AMD's K5 and K6 series topped out at 
500; they're all i586-class procs.  AMD's Geode in same series.  Cyrix and 
later VIA C3-series chips go faster, but are still i586-class chips (up to 1GHz 
or so, maybe faster).  800MHz embedded C3's have been very popular in the 
embedded space.  And this class of chip is what many people would like to run 
C5 and C6 (and they are beefy enough to run text mode for either of these, 
really, since they would mostly be used as network devices with no local GUI).

> really, we should have compiler targets for optimizing on the P4 
> 'netburst' CPUs and another for the core processors as they are all 
> pipelined differently.   

Very very true.  Netburst is very different from Pentium M and Core 
architectures.

> as it turns out, however, the core 2 and core 
> I3/5/7 do pretty well with pentium-II and -III style optimization 
> strategies, as well as, of course, the x86_64 support.

Has to do with Core being descended from Pentium M architecture, which is 
essentially souped-up Pentium III.  The history of Pentium M is a fascinating 
study.
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Re: [CentOS] Upgrade from CentOS 5.4 to 5.6

[Les Mikesell]

On 7/18/2011 9:08 AM, Brunner, Brian T. wrote:
> centos-boun...@centos.org wrote:
>> Hi all,
>>
>> So, how can I get it my CentOS from 5.6 to 6.0?
>
> Backup data
> Clean install
> Restore data.

You left out the hard part which is ensuring that 'data' does not 
conflict with any new files from the 6.x install, which anything under 
/etc or /var most likely will, and then making sure that the parts of 
'data' that you need from those conflicting files are added back in a 
compatible way, which will generally be non-trivial.

-- 
   Les Mikesell
lesmikes...@gmail.com
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Re: [CentOS] Cannot install through (U)EFI

[Akemi Yagi]

On Mon, Jul 18, 2011 at 7:10 AM, Baptiste AGASSE
 wrote:
> Hi all,
>
> I've a little problem with CentOS 6 and EFI on Dell Poweredge R510...
> My Logical disk (hardware raid) is a little bit greated than 9TB, so i must 
> use EFI in order to see the whole disk space and boot on it, but my box don't 
> want to boot on CentOS 6 x86_64 Install DVD when i'm in EFI boot mode.
>
> someone has successfully installed CentOS 6 x86_64 in EFI mode ?

There is a related bug report here:

http://bugs.centos.org/view.php?id=4969

Akemi
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Re: [CentOS] SPAM on the List

[Christopher Chan]

On Monday, July 18, 2011 09:19 PM, Stephen Harris wrote:

SPAM-L is that way ==> oh wait, it's dead...

Maybe we can keep discussions about blackhat, incompetent networks, 
about SMTP, open proxies/relays, honeypots and what have you off this list?

Just limit it to sendmail/postfix/exim configuration if you have to 
discuss these things but please leave everything else outside in 
NANAE/your favourite spitting pot.
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[CentOS] Cannot install through (U)EFI

[Baptiste AGASSE]

Hi all,

I've a little problem with CentOS 6 and EFI on Dell Poweredge R510...
My Logical disk (hardware raid) is a little bit greated than 9TB, so i must use 
EFI in order to see the whole disk space and boot on it, but my box don't want 
to boot on CentOS 6 x86_64 Install DVD when i'm in EFI boot mode.

someone has successfully installed CentOS 6 x86_64 in EFI mode ?

Regards.
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Re: [CentOS] Upgrade from CentOS 5.4 to 5.6

[Brunner, Brian T.]

centos-boun...@centos.org wrote:
> Hi all,
> 
> So, how can I get it my CentOS from 5.6 to 6.0?

Backup data
Clean install
Restore data.


Insert spiffy .sig here:
Life is complex: it has both real and imaginary parts.
Life is not measured by the number of breaths we take, but by the
moments that take our breath away. 


//me
***
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom
they are addressed. If you have received this email in error please
notify the system manager. This footnote also confirms that this
email message has been swept for the presence of computer viruses.
www.Hubbell.com - Hubbell Incorporated**

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Re: [CentOS] Kernel panic - not syncing: Attempted to kill init! after installation of Driver Diskette for enabling Onboard RAID Controller Chipset

[Kaushal Shriyan]

On Mon, Jul 18, 2011 at 6:59 PM, Kaushal Shriyan
 wrote:
> On Fri, Jul 15, 2011 at 11:47 AM, John R Pierce  wrote:
>> On 07/14/11 10:56 PM, Kaushal Shriyan wrote:
>>> I have HP DL 180 G6 2U Rack Server with HP Smart Array Controller Card
>>> B110i Onboard SATA Controller Chipset. This server has 4 * 500 GB SATA
>>> HDD have configured RAID 1+0 and it shows Single Logical Drive of 940
>>> GB Hard Disk in the RAID BIOS.
>>
>> the SmartArray 110i is simply Intel "Matrix" fake raid.  The hardware is
>> purely basic plain SATA JBOD, but the BIOS and driver implement the raid
>> behind the systems back.
>>
>> Configure the BIOS for AHCI native SATA, and use linux native raid.  See
>> http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5?highlight=%28RAID%29
>>
>>
>> --
>> john r pierce                            N 37, W 122
>> santa cruz ca                         mid-left coast
>>
>> ___
>> CentOS mailing list
>> CentOS@centos.org
>> http://lists.centos.org/mailman/listinfo/centos
>>
>
> Hi Again,
>
> I did some changes, i just created two partitions / and swap using the
> Anaconda Installer, it worked fine after loading boot loader GRUB and
> then after it stopped at Kernel Panic.
>
> device—mapper: dm—raid15: initialized v0.25941
> Waiting for driver initialization
> Scanning and configuring dnraid supported devices
> Trying to resume from (LABEL=SWAP-sda2)
> Unable to access resume device (L‘*wmVgW_¢;"1iZ)
> Creating root device.
> Hounting root filesystem.
> EXT3—fs error (device sdc1) : ext3_check_descriptors: Block bitmap for group 
> 296
> not in group (block 231211688)!
> EXT3~fs1 group descriptors corrupted!
> mount: error mounting /dev/root on /sysroot as ext3: Invalid argument
> Setting up other filesystems.
> Setting up new root fs
> setuproot: moving /dev failed: No such file or directory
> no fstab.sys, mounting internal defaults
> setuproot: error mounting /proc: No such file or directory
> setuproot: error mounting /sys: No such file or directory
> Suitching to new root and running init.
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> suitchrootr mount failed: No such file or directory
> Kernel panic — not syncing: Attempted to kill init!
>
> Please suggest further. is there a way to create customized initrd for
> this default kernel available on CentOS 5.6
>
> Thanks and Regards,
>
> Kaushal
>

Hi Again,

I have read this on the forums and it explained as below.

Probably need to get that module into your initrd. The computer, upon
booting, loads a kernel image and an initial ramdisk. the latter is a
compressed filesystem image that the bootloader just maps into memory,
and it holds a number of kernel modules and helper programs for the
kernel you are booting. if it does not contain the kernel module
that's driving your RAID controller, the kernel won't ever be able to
recognize your disk array, because it
lacks the proper driver for it that's why the initrd's helper programs
are panicking - they are trying to mount a crucial filesystem from a
device which just isn't there it cannot continue, and bails with a
big, fat error

Somehow need to include the driver you loaded from the USB thumb drive
during installation during booting your system (most probably from
within
the initrd) . probably need to get that module into the initrd.

Please guide/suggest further.

Regards,

Kaushal
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Re: [CentOS] SPAM on the List

[Always Learning]

On Mon, 2011-07-18 at 15:45 +0900, 夜神 岩男 wrote:

> On Mon, 2011-07-18 at 04:04 +0100, Always Learning wrote:

> > It seems spammers have successfully hacked Rupert Murdock's London Times
> > newspaper and copied hundreds of thousands of email addresses or has a
> > member of staff sold the email addresses to spammers to make some money?

> Though it is certainly possible that a breach of some sort is
> responsible for your spam, sniffing for email headers on high activity
> parts of a network would be sufficient to collect a large number of
> active email addresses to try (sniffing at Tor gateways could provide
> interesting results, come to think of it). Another big winner for
> mailbox collection is to not crack the information provider's site, but
> to instead crack the email service provider and obtain a list of all
> active accounts on that server (which would likely span multiple
> domains).

In the example I mentioned, it was a specially created single purpose
email SMTP address (no POP etc.) used just once about 5? months ago. It
is easy for me to block it as the mail server (MTA Mail Transfer Agent)
which I have done.

> Getting a hold of email accounts can happen any number of ways, most of
> them uncontrollable by the account holder. Its a mailbox -- an open
> destination for the world to send you stuff. You can't be too surprised
> when the world does in fact send you stuff.

We are no so liberal with mailboxes. Some can be accessed only by prior
approved senders. Others, because they are single purpose email
addresses, can be permanently blocked after the first unwanted email.
Some email addresses are created with sub-domains that can be dropped at
the first abuse then replaced by new sub-domains.

> The difference between deposit/fetch and send/receive is profound. This
> is part of why I'm surprised that newsreaders and forums have fallen
> from favor amongst technical discussion groups. The "Logging into forums
> is a PITA" or "setting up another client is a PITA" arguments obviously
> won the debate -- though I think spam is a lot deeper into PITA
> territory than either at the present time.

The problems with forums are, in my personal opinion:-

(1) Spyware : logging every access with Google the USA's international
spying operation.

(2) Advertisements

(3) tiny text difficult to read

(4) Pop-up windows

(5) Layout not conducive to easy and quick reading.

(6) Having to visit a web site and then log-on if one wants to respond.

Conversely:-

Email Lists are quick, easy, immediate (certainly for my set-up),
require no extra effort.  Should the address get spammed, then its one
quick and simple change:-

(a) replacement DNS sub-domain

(b) update Mailman

(c) change email address in email client.



-- 
With best regards,

Paul.
England,
EU.


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Re: [CentOS] firewall?

[Always Learning]

On Sun, 2011-07-17 at 22:17 -0700, Cody Jackson wrote:

> On 7/17/11, hadi motamedi  wrote:
> > Thank you very much for your reply. Can you please let me know what is
> > the centos mailing list for basic users like me?

> This one is great:
> 
> https://google.com

Which option do you suggest ?  'Google Search' or 'I'll Feeling Lucky' ?


-- 
With best regards,

Paul.
England,
EU.


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[CentOS] Bacula dbcheck in CentOS6

[Joseph L. Casale]

Anyone else notice that /usr/libexec/bacula/make_catalog_backup.pl runs a 
"dbcheck -B"
which doesn't seem to exist in the version of dbcheck shipped with it?

# strings /usr/sbin/dbcheck |grep -i print
sprintf
vfprintf
snprintf
   -dt   print timestamp in debug output
   -?print this message
%d block read errors not printed.

That makes it rather hard to do a catalogue backup with the shipped script?
jlc
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Re: [CentOS] Kernel panic - not syncing: Attempted to kill init! after installation of Driver Diskette for enabling Onboard RAID Controller Chipset

[Kaushal Shriyan]

On Fri, Jul 15, 2011 at 11:47 AM, John R Pierce  wrote:
> On 07/14/11 10:56 PM, Kaushal Shriyan wrote:
>> I have HP DL 180 G6 2U Rack Server with HP Smart Array Controller Card
>> B110i Onboard SATA Controller Chipset. This server has 4 * 500 GB SATA
>> HDD have configured RAID 1+0 and it shows Single Logical Drive of 940
>> GB Hard Disk in the RAID BIOS.
>
> the SmartArray 110i is simply Intel "Matrix" fake raid.  The hardware is
> purely basic plain SATA JBOD, but the BIOS and driver implement the raid
> behind the systems back.
>
> Configure the BIOS for AHCI native SATA, and use linux native raid.  See
> http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5?highlight=%28RAID%29
>
>
> --
> john r pierce                            N 37, W 122
> santa cruz ca                         mid-left coast
>
> ___
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> http://lists.centos.org/mailman/listinfo/centos
>

Hi Again,

I did some changes, i just created two partitions / and swap using the
Anaconda Installer, it worked fine after loading boot loader GRUB and
then after it stopped at Kernel Panic.

device—mapper: dm—raid15: initialized v0.25941
Waiting for driver initialization
Scanning and configuring dnraid supported devices
Trying to resume from (LABEL=SWAP-sda2)
Unable to access resume device (L‘*wmVgW_¢;"1iZ)
Creating root device.
Hounting root filesystem.
EXT3—fs error (device sdc1) : ext3_check_descriptors: Block bitmap for group 296
not in group (block 231211688)!
EXT3~fs1 group descriptors corrupted!
mount: error mounting /dev/root on /sysroot as ext3: Invalid argument
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Suitching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
suitchrootr mount failed: No such file or directory
Kernel panic — not syncing: Attempted to kill init!

Please suggest further. is there a way to create customized initrd for
this default kernel available on CentOS 5.6

Thanks and Regards,

Kaushal
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[CentOS] C6 install error about cyrus

[Jerry Geis]

When I am install C6.
I am getting an error about "A fatal error occurred when installing the 
cyrus-sasl package.
Exit Installer.

These are my packages:
 ls -l cyrus-*
-rw-r--r-- 1 silentm silentm 11745776 Jul  3 00:08 
cyrus-imapd-2.3.16-6.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm   238380 Jul  3 00:03 
cyrus-imapd-devel-2.3.16-6.el6.i686.rpm
-rw-r--r-- 1 silentm silentm   237328 Jul  3 00:09 
cyrus-imapd-devel-2.3.16-6.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm   260504 Jul  3 00:09 
cyrus-imapd-utils-2.3.16-6.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm78796 Jul  3 00:09 
cyrus-sasl-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm   309328 Jul  3 00:03 
cyrus-sasl-devel-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm   309068 Jul  3 00:09 
cyrus-sasl-devel-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm33284 Jul  3 00:03 
cyrus-sasl-gssapi-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm33764 Jul  3 00:09 
cyrus-sasl-gssapi-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm28720 Jul  3 00:03 
cyrus-sasl-ldap-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm29064 Jul  3 00:09 
cyrus-sasl-ldap-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm   137956 Jul  3 00:03 
cyrus-sasl-lib-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm   138868 Jul  3 00:09 
cyrus-sasl-lib-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm46852 Jul  3 00:03 
cyrus-sasl-md5-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm47284 Jul  3 00:09 
cyrus-sasl-md5-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm35620 Jul  3 00:03 
cyrus-sasl-ntlm-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm35728 Jul  3 00:09 
cyrus-sasl-ntlm-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm30756 Jul  3 00:04 
cyrus-sasl-plain-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm31020 Jul  3 00:09 
cyrus-sasl-plain-2.1.23-8.el6.x86_64.rpm
-rw-r--r-- 1 silentm silentm31552 Jul  3 00:04 
cyrus-sasl-sql-2.1.23-8.el6.i686.rpm
-rw-r--r-- 1 silentm silentm31768 Jul  3 00:09 
cyrus-sasl-sql-2.1.23-8.el6.x86_64.rpm

How might I tell whats wrong?

or - I am using kickstart is this package "really" needed I could just 
exclude it.


Jerry
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Re: [CentOS] SPAM on the List

[Stephen Harris]

On Mon, Jul 18, 2011 at 07:41:09AM -0500, Les Mikesell wrote:
> On 7/18/11 5:43 AM, Stephen Harris wrote:
> >>> RFC2821 says:
> >>>  -  The domain name given in the EHLO command MUST BE either a primary
> >>> host name (a domain name that resolves to an A RR) or, if the host
> >>> has no name, an address literal as described in section 4.1.1.1.
> >>>
> >>> So, pretty much, HELO or EHLO greeting _must_ match to an IP.
> >>>
> >>> (RFC821 actually wanted the HELO to match the connecting host, but
> >>> 2821 just says it must be an A record or an address literal).

> Can you point me to the section?  I don't see anything there about the 
> hostname 
> having to match an interface address or being allowed to reject if it isn't - 
> or 
> even any advice on how clustered hosts representing one mail domain should 
> represent themselves.

I think you think I'm disagreeing with you; I'm not.  I'm agreeing
with you.  The RFCs don't require the SMTP server to match the interface
IP address.

Note that RFC821 has been obsoleted and replaced with 2821.  Anyone
programming to 821 requirements is doing it wrong.  In fact 2821 has
been replaced with 5321

5321 says
 2.3.5 [...]
 The domain name given in the EHLO command MUST be either a primary
  host name (a domain name that resolves to an address RR) or, if
  the host has no name, an address literal, as described in
  Section 4.1.3 and discussed further in the EHLO discussion of
  Section 4.1.4.

I think that reference to 4.1.4 should really be 4.1.1.1...

4.1.1.1.  Extended HELLO (EHLO) or HELLO (HELO)

   These commands are used to identify the SMTP client to the SMTP
   server.  The argument clause contains the fully-qualified domain name
   of the SMTP client, if one is available.  In situations in which the
   SMTP client system does not have a meaningful domain name (e.g., when
   its address is dynamically allocated and no reverse mapping record is
   available), the client SHOULD send an address literal (see
   Section 4.1.3).

You only need to follow 5321 requirements which do _not_ require the
host to identify it as matching the specific interface; it merely needs
to identify as a valid A record (or address literal) for the client system.

There's nothing to say that the client system need be listening to port
25 (or be open to port 25 connections; firewalls for example), so anyone
performing HELO (or EHLO) address verification is pretty much limited
to the 2.3.5 requirement; that the passed name is _a_ valid name.  Which
is, AFAIK, all postfix does.

-- 

rgds
Stephen
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Re: [CentOS] SPAM on the List

[Les Mikesell]

On 7/18/11 5:43 AM, Stephen Harris wrote:
> On Sun, Jul 17, 2011 at 10:12:16PM -0500, Les Mikesell wrote:
>> On 7/17/11 9:37 PM, Stephen Harris wrote:
>>> On Sun, Jul 17, 2011 at 09:07:38PM -0500, Les Mikesell wrote:
 There is no requirement for the greeting name to match any IP, and isn't 
 likely
>>>
>>> RFC2821 says:
>>>  -  The domain name given in the EHLO command MUST BE either a primary
>>> host name (a domain name that resolves to an A RR) or, if the host
>>> has no name, an address literal as described in section 4.1.1.1.
>>>
>>> So, pretty much, HELO or EHLO greeting _must_ match to an IP.
>>>
>>> (RFC821 actually wanted the HELO to match the connecting host, but
>>> 2821 just says it must be an A record or an address literal).
>>
>> That's a long way for saying it MUST be the name of that particular host 
>> (which
>
> I addessed that in the parenthetical; 821 did require it; 2821 doesn't.

Can you point me to the section?  I don't see anything there about the hostname 
having to match an interface address or being allowed to reject if it isn't - 
or 
even any advice on how clustered hosts representing one mail domain should 
represent themselves.

-- 
   Les Mikesell
lesmikes...@gmail.com




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Re: [CentOS] cent0s-6 and virtualbox

[James Hogarth]

> Indication was when they supported (or just
> forced, cant remember witch) Virtualization only on x86_64 on
> RHEL/CentOS 5.x.
>

They only support KVM as a host technology for virtualization now. KVM
requires the CPU virtualization extensions to function. The functions
are only available on the CPU when in 64bit (long) mode.

There are sound technical reasons for this and it wasn't just them
being stubborn to drop an architecture.
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Re: [CentOS] redhat-release file on C6

[Peter Hinse]

Am 18.07.2011 13:49, schrieb Keith Roberts:

>> Maybe CentOS are planning a release of something that isn't based on
>> Linux :-)
> 
> Windoze 7.5 ??

Note: Debian 7.0 will be available with Hurd kernel:
http://www.gnu.org/software/hurd/news/2011-q2.html

Who knows what Redhat is planning... :)
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Re: [CentOS] redhat-release file on C6

[Keith Roberts]

On Mon, 18 Jul 2011, James Pearson wrote:

> To: CentOS mailing list 
> From: James Pearson 
> Subject: Re: [CentOS] redhat-release file on C6
> 
> Stephen Harris wrote:
>> Curious as to why redhat-release says "CentOS Linux release" in C6, but
>> on C5 it merely says 'CentOS release".  This causes programs that try to
>> parse the file (eg Xen Tools) to fail 'cos it can't parse properly.
>
> This caught me out as well ...
>
> Maybe CentOS are planning a release of something that isn't based on
> Linux :-)

Windoze 7.5 ??

Keith - ROTFL

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Re: [CentOS] SPAM on the List

[Stephen Harris]

On Sun, Jul 17, 2011 at 10:12:16PM -0500, Les Mikesell wrote:
> On 7/17/11 9:37 PM, Stephen Harris wrote:
> > On Sun, Jul 17, 2011 at 09:07:38PM -0500, Les Mikesell wrote:
> >> There is no requirement for the greeting name to match any IP, and isn't 
> >> likely
> >
> > RFC2821 says:
> > -  The domain name given in the EHLO command MUST BE either a primary
> >host name (a domain name that resolves to an A RR) or, if the host
> >has no name, an address literal as described in section 4.1.1.1.
> >
> > So, pretty much, HELO or EHLO greeting _must_ match to an IP.
> >
> > (RFC821 actually wanted the HELO to match the connecting host, but
> > 2821 just says it must be an A record or an address literal).
> 
> That's a long way for saying it MUST be the name of that particular host 
> (which 

I addessed that in the parenthetical; 821 did require it; 2821 doesn't.

-- 

rgds
Stephen
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Re: [CentOS] redhat-release file on C6

[James Pearson]

Stephen Harris wrote:
> Curious as to why redhat-release says "CentOS Linux release" in C6, but
> on C5 it merely says 'CentOS release".  This causes programs that try to
> parse the file (eg Xen Tools) to fail 'cos it can't parse properly.

This caught me out as well ...

Maybe CentOS are planning a release of something that isn't based on 
Linux :-)

James Pearson
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Re: [CentOS] CentOS-6 firewall how to open a port

[Ljubomir Ljubojevic]

Timothy Murphy wrote:
> There does seem to be a bug/feature: if you enter
> the same procedure by Administration=>Firewall (in KDE)
> you cannot make any changes (at least I could not)
> even after giving the superuser password, when requested.
> 

You should reported as a bug, either to bugs.centos.org or on Red Hat's 
bugzilla.

-- 

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

Google is the Mother, Google is the Father, and traceroute is your
trusty Spiderman...
StarOS, Mikrotik and CentOS/RHEL/Linux consultant
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Re: [CentOS] cent0s-6 and virtualbox

[Ljubomir Ljubojevic]

Michel Donais wrote:
>> Hrrm, seems as if the ISO may be using a PAE kernel by default.  PAE is
>> a kernel that will be able to make use of more than 4GB of RAM with
>> i686.
>>
>> Ah, I see it's apparently a decision by RH.  I assume there's some logic
>> in it, though I don't know what it is.
>>
>>
>> http://jp.centos.org/modules/newbb/viewtopic.php?topic_id=26352&forum=14
>>
>>
>> See if it's possible to add
>> PAE to the machine settings in VirtualBox.   Settings=>System=>Processor
>>
> The box is already checked but the CPU doesn't have PAE capability so it's 
> useless.
> 
> It won't be a bad thing thatthe install may do a choice of a cpu with or not 
> the capability of PAE as it was in the past.
> 

Red Hat decided that this newer version of RHEL(CentOS) *must* have PAE 
support by CPU to be installed. I think they would even prefer to loose 
i386 branch all together. Indication was when they supported (or just 
forced, cant remember witch) Virtualization only on x86_64 on 
RHEL/CentOS 5.x.


Ljubomir
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Re: [CentOS] authconfig-gtk-6.1.9-1.fc14.i686.rpm missing durring URL Install ?

[Ljubomir Ljubojevic]

Armelius Cameron wrote:
> On Sunday, July 17, 2011 05:14:49 pm Always Learning wrote:
>> On Sun, 2011-07-17 at 16:51 -0400, Armelius Cameron wrote:
>>> This is a rather strange problem. I am using the i386 netinstall CD to
>>> boot and do a URL (HTTP) install since my machine only has CD drive and
>>> can't boot from USB either.
>>>
>>> During the install, the installer was looking for package authconfig-
>>> gtk-6.1.9-1.fc14.i686.rpm and claims that it's missing. I checked the
>>> RPMs under packages, and for sure it wasn't there. But look at the
>>> package name. Why is the installer asking for .fc14. package ?
>>> authconfig-gtk-6.1.4-6.el6.i686.rpm exists instead, but I don't
>>> understand why the .fc14. package was requested. Anyone else sees this ?
>> What version of Centos were you attempting to install ?
> 
> Centos 6. Sorry, forgot to mention that.
> 

One option:
You should report this as a bug on bugs.centos.org and wait few days for 
Mininal CD, Minimal Server CD and LiveCD.

Another option:
You should report this as a bug on bugs.centos.org and use NetInstall 
but avoid that package. Then install remaining packages from yum.

I haven't used NetInstall in a while. Have you had to enter http address 
or was it done automatically? I was thinking was it possible that it 
looked at Fedora 14 repository?


Ljubomir
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Re: [CentOS] firewall?

[Arun Khan]

On Mon, Jul 18, 2011 at 11:12 AM, hadi motamedi  wrote:
> >
> Thank you for your help. I learned a lot from your post that enabled
> me to share Internet connection on my centos 5.6 machine. At now , the
> windows machine is behind the centos firewall and it can even ping
> 192.9.9.3 but just cannot resolve the url (even with DNS set for it).
> I just need to know how to give it Internet service?

search for keywords "linux routing"  and "linux ip forwarding"  and
you will find umpteen sites with answers to your problem.

As suggested by others,  budget a cheap NIC and keep Internet and LAN
on two separate physical NICs.   That would be the minimum best
practice.

Another piece of advice.  Follow the RERERE [1]  method to learn Linux
administration.   By the third you will get it right (that has been my
experience).

Visit www.tldp.org.   You will find several "full length" books on
Linux system/network admin as well "how tos"  Pick the one that meets
your scenario, read the material and experiment.   That is the best
way to learn.BTW you can do this by installing VirtualBox either
in Linux or Windows.  With VBox you can setup small networks, all in a
virtual environment.   You can experiment and learn from them.  VBox
is well documented.

For Linux networking,  the book by Olaf Kirch and Terry Dawson [2]  is
a classic.   CentOS/RHEL docs are also very comprehensive with theory
and examples.

When you get stuck on any implementation then ask specific questions -
I tried this "blah blah" found it in this "xyz reference"  and I am
stuck on this point.

>From your posts it does not look like you have tried to do any
research.The culture in FOSS mailing lists/forums  is to help
those who try to help themselves; otherwise opt for commercial
support.

[1] Read Experiment 
[2] http://www.tldp.org/LDP/nag2/nag2.pdf

-- 
Arun Khan
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
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[CentOS] SQUID Logrotate

[Railic Njegos]

Hi all,
i have problem, after uprade CentOS 5.5 to 5.6, Logrotate don't work
on two proxy servers. I have installed :

squid-2.6.STABLE21-6.el5
logrotate-3.7.4-9.el5_5.2

On first server , squid logs never rotated, config is here

cat /etc/logrotate.d/squid
/var/log/squid/access.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
}
/var/log/squid/cache.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
}

/var/log/squid/store.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
# This script asks squid to rotate its logs on its own.
# Restarting squid is a long process and it is not worth
# doing it just to rotate logs
postrotate
  /usr/sbin/squid -k rotate
endscript
}

On second server squid logs rotated every day . Config :

/var/log/squid/access.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
}
/var/log/squid/cache.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
}

/var/log/squid/store.log {
weekly
rotate 5
copytruncate
compress
notifempty
missingok
# This script asks squid to rotate its logs on its own.
# Restarting squid is a long process and it is not worth
# doing it just to rotate logs
postrotate
  /usr/sbin/squid -k rotate
endscript
}

Can someone help me ?
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Re: [CentOS] Upgrade from CentOS 5.4 to 5.6 -> 6.0 (becoming slightly OT...)

[Luigi Rosa]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Patrick Derwael said the following on 18/07/11 08:53:

> As VM does not officially support CentOS6, can you tell me which OS version
> you have selected? (RH5, CentOS, Other 2.6 kernel?)

I choose RedHat 6

> Is there any other do's and don't I should be aware of?

Apart from a tech support that tells you lies, nothing else ;)






Ciao,
luigi

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