Re: [CentOS] Errors on an SSD drive

[Mark Haney]

To be honest, I'd not try a btrfs volume on a notebook SSD. I did that on a
couple of systems and it corrupted pretty quickly.  I'd stick with xfs/ext4
if you manage to get the drive working again.

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On Wed, Aug 9, 2017 at 1:48 PM, hw  wrote:

> Robert Moskowitz wrote:
>
>> I am building a new system using an Kingston 240GB SSD drive I pulled
>> from my notebook (when I had to upgrade to a 500GB SSD drive).  Centos
>> install went fine and ran for a couple days then got errors on the
>> console.  Here is an example:
>>
>> [168176.995064] sd 0:0:0:0: [sda] tag#14 FAILED Result:
>> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
>> [168177.004050] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 01 04 68 b0
>> 00 00 08 00
>> [168177.011615] blk_update_request: I/O error, dev sda, sector 17066160
>> [168487.534510] sd 0:0:0:0: [sda] tag#17 FAILED Result:
>> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
>> [168487.543576] sd 0:0:0:0: [sda] tag#17 CDB: Read(10) 28 00 01 04 68 b0
>> 00 00 08 00
>> [168487.551206] blk_update_request: I/O error, dev sda, sector 17066160
>> [168787.813941] sd 0:0:0:0: [sda] tag#20 FAILED Result:
>> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
>> [168787.822951] sd 0:0:0:0: [sda] tag#20 CDB: Read(10) 28 00 01 04 68 b0
>> 00 00 08 00
>> [168787.830544] blk_update_request: I/O error, dev sda, sector 17066160
>>
>> Eventually, I could not do anything on the system.  Not even a 'reboot'.
>> I had to do a cold power cycle to bring things back.
>>
>> Is there anything to do about this or trash the drive and start anew?
>>
>
> Make sure the cables and power supply are ok.  Try the drive in another
> machine
> that has a different controller to see if there is an incompatibility
> between
> the drive and the controller.
>
> You could make a btrfs file system on the whole device: that should say
> that
> a trim operation is performed for the whole device.  Maybe that helps.
>
> If the errors persist, replace the drive.  I悲 use Intel SSDs because they
> seam to have the least problems with broken firmwares.  Do not use SSDs
> with
> hardware RAID controllers unless the SSDs were designed for this
> application.
>
>
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Re: [CentOS] VDQ Repos for CentOS 7

[Mark Haney]

On 08/04/2017 02:35 PM, Alexander Dalloz wrote:
Without a precise error messge (copy & paste what is printed out) it 
is hard to judge.


rpm -V centos-release

If that command does not print out anything then the default CentOS 
repo definitions are there and set. I then would guess the laptop does 
not have internet connectivity. Validate that


ip a s

prints out a valid network address. And that

ip r s

has a valid route to reach the internet.

Is any internet address like www.google.com reachable from the system?

Alexander


Standard troubleshooting 101:

Have you rebooted?
Can you ping it?

If no then hit us up.

Had that as a sign forever on my wall. I probably should make a new one.


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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 08/02/2017 11:13 AM, John Hodrien wrote:

On Wed, 2 Aug 2017, Mark Haney wrote:

Sure there is such a thing.  It's a tiled console package (tilix is 
what I use).  In all honesty, I wouldn't want Libreoffice running in 
a container and I can't imagine why you'd want an xterm in its own 
container.  Most containers I've built have been RESTful API 
containers, NGINX proxies/web servers, etc.  I spend more time on the 
container host making changes, than in the containers themselves.  If 
an API change has been made, I throw a new container up with that 
change and test, rarely, if ever, do I need access the container 
directly.  And that's the idea behind containers if you ask me.


Lots of people think of containers being for servers, as you say. It's 
what

Docker lives off, and really does feel like the focus of Docker.

Singularity lets you think somewhat differently, and has proved very 
useful in
areas like HPC, where you want to let a user bring a software 
environment to a
machine.  You get people like OpenFOAM releasing their software as a 
Docker

container:

https://openfoam.org/download/4-1-linux/

I've also used it to run Ubuntu packaged software on CentOS without 
having to

jump through hoops trying to repackage it or otherwise rebuild a million
dependencies in just the right way.

I honestly had forgotten about Singularity.  Mainly because it's been a 
couple of years since I managed any HPC equipment.  But seriously, I 
think of containers the same way I do linux tools. Unlike MS, a linux 
does does one thing, and that thing very well, whereas MS has tried to 
be everything to everyone and is so-so at all of them.  Perhaps that was 
the original intention of container and it's morphed into something else 
over time, which, if true, means I need to adjust how I define it rather 
than trying to beat that square peg into the round hole in my head.


On a side note, as I write this, Pandora decided to toss 
'Misunderstading' by Phil Collins into my playlist. It's playing as I 
type.  Go figure.



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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 08/02/2017 10:57 AM, hw wrote:


It probably makes sense under the assumption that you do pretty much
everything in one container or another and that it doesn´t bother you
having to switch between all the containers to do something.  That would
require something like a window manager turned into a container manager,
and it goes towards turning away from an operating system to some kind of
BIOS to run containers and the container-window manager on.  You could 
strip
down the BIOS to no more than the functionality needed for that, 
resulting
in having less need for different software versions of the platform 
(BIOS).


Why hasn´t a BIOS like that already been invented?  Or has it?

Since copyright issues were mentioned, please keep in mind that I am now
the inventor of a container manager that is like a window manager,
potentially showing programs running in whatever container as windows
on your screen, bringing them together seamlessly with no further ado, as
if they were running on the same OS:  A common window manager would 
show an
emacs frame besides an xterm; a container-window manager would 
basically do

the same, but emacs and xterm would be running in different containers.

OS/2 already had something like that, but it didn´t have containers.

Why hasn´t a container manager like that already been invented? Or has 
it?


Wouldn´t it be much better being able to do this without needing 
containers? 


Sure there is such a thing.  It's a tiled console package (tilix is what 
I use).  In all honesty, I wouldn't want Libreoffice running in a 
container and I can't imagine why you'd want an xterm in its own 
container.  Most containers I've built have been RESTful API containers, 
NGINX proxies/web servers, etc.  I spend more time on the container host 
making changes, than in the containers themselves.  If an API change has 
been made, I throw a new container up with that change and test, rarely, 
if ever, do I need access the container directly.  And that's the idea 
behind containers if you ask me.





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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 08/02/2017 08:27 AM, hw wrote:

Jonathan Billings wrote:


I’m confused, are you talking about Gentoo, Fedora, CentOS or RHEL?


I´m talking about Centos here and am referring to experiences with other
distributions at the same time.

Like Gentoo is great but horrible to keep up to date, and in doing so,
you are expected to become a package manager yourself.  Things introduced
into Fedora might make their way into RHEL/Centos, and introducing
multiversion-packages into Fedora might lead to introducing them into 
Centos.


I ran very early Gentoo versions (2005 to 2010) on my work laptop (a 
Compaq of all things) without any trouble.  I had very few issues with 
failed updates, since they are compiled on my system with my switches. 
The biggest PITA was to get the right switches added to get what you 
really wanted on the system.  I tinkered with KDE options for a couple 
of weeks (and the long compile times), but there weren't any issues 
usually.


Once they have been introduced, we need to become package managers 
much as

with Gentoo in order to figure out which versions of which packages work
together.  And that´s just the tip of the iceberg.
I don't this is as making us (the end user) package maintainers as much 
as package /controllers/.  I would fail to see much need to maintain 
multiple package versions on a system except for debugging/testing.  
However, as a former developer, I think this would make debugging much 
quicker and that's not a bad thing.  On the DevOps/Systems Engineering 
side (my focus over the last decade), this could possibly be a PITA if 
devs were allowed to run multiple package versions in production 
systems.  That's still not package maintainers, but a measure of control 
over them.


What will happen when you report a bug in version N of package foo, 
perhaps
a bug that was fixed in version N+2?  Are they going to fix it, or 
will they
wait until the distribution goes EOL and/or tell you to use version 
N+2 ---
which you can´t use because feature X is missing in that version, 
which is

why you are using version N.
They do that sort of thing all the time, it's called backporting. And 
lots of patches are backported.  Most of that is a function of how /far 
back/ to be backported, etc.  If they don't backport, you have a couple 
of options, backport it yourself, or find a comparable package with the 
features you need.


Being able to use that very version N is the point of 
multiversion-packages.

Not maintaining all provided versions of such packages accordingly would
defeat the whole purpose.
That's insane.  Who in their right mind want to continue to maintain 
version 1.0 of a package when the current one is version 10.0 and there 
are 30 stable versions in between?  No one.  What are the odds the 
version 1.0 package would still be used in that situation? (even given 
short release times)


Perhaps issues like this haven´t been considered yet, that´s why I´m
providing feedback as was asked for, after finding out that the form they
have prepared to get feedback doesn´t allow to do so.  I´m aware that 
this
is feedback they don´t want to hear and will either ignore or 
encounter with

unkindness.

Perhaps I´m entirely wrong and misunderstanding what they´re trying to 
do,

yet so far nobody has said so.



I don't think you're wrong, and I don't think you're misunderstanding 
either.  It's kind of a bit of both, however contradictory that sounds.  
To me, Boltron seems to be a start on an idea whose time has come.  
Maybe it's too early for it, but I'm really looking to put it through 
it's paces to see how well it does work in real life situations.



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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 08/02/2017 07:36 AM, hw wrote:


Don´t get me started on Fedora updates.  One of the reasons to deprecate
Fedora was that upgrading had turned out to be unreliable and mostly
failing.  Not being able to reliably upgrade disqualifies any 
distribution. 


I hate to break it to you, but since they began using fedup and dnf 
upgrade, it's never been an issue for me at all.  Again, alot depends on 
what packages you have installed and _from what repos_ that determines a 
lot about your upgrade experience.  Even Ubuntu LTS blows up when using 
non-standard repos.


I'll say to you what I said to someone else on this list on Monday. If 
you're not willing to deal with the warts in Fedora, then you need to go 
elsewhere.  It's really not that complicated.  Continuing to spam the 
list with psuedo-flamebait is just silly.  We're here to help with 
problems not listen to disgruntled people complain all the time.


I, personally, get far too much email as it is for people like you to 
just add more junk to it.


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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 07/31/2017 11:59 AM, Walter H. wrote:

On 31.07.2017 13:23, Mark Haney wrote:
Uh, I run VMWare workstation just fine on my F26 upgraded machine. 
No, it didn't work when I upgraded, but it's trivial to fix.


http://rglinuxtech.com/?p=1939

This link gets you a running workstation in about 5 minutes.
not really, with this I only get the additional network interfaces 
listed with  'ifconfig', nothing more ..., I removed it, and wait for 
a VMware Wkst. Update ...

(as this is just a test box, I can do this; if it were my essential box,
I would have kicked Fedora from the harddisk and used Windows again, 
as I do on my essential box)



  No, this wasn't really a Fedora issue, it's a VMWare issue.

doesn't really help me, the upgrade killed my VMware Workstation


Did you try restarting the vmware service?  systemctl restart vmware?  I 
had to do that, or reboot, in order to get the loaded modules actually 
seen by Workstation.


I have to be completely honest here.  It sounds a lot like you're not 
the kind of person who wants to dig into the guts of things when they 
break.  At least with computing/operating systems.  If that's the case, 
then Fedora probably isn't for you, and I'm sure most on the list would 
agree.  It's 'bleeding edge' packages that, even with a 'stable' release 
will possibly have some issues than need working out.  That's been the 
case since the Fedora Core days.


In that vein, I would recommend Ubuntu, but the Unity desktop implodes 
spectacularly with VMWare workstation, or I should say it /did/ with 
16.04.  That may have been fixed with later versions, but I changed jobs 
from an all Ubuntu shop to an all RH/CentOS shop, so I'm not certain.  
The thing is, this is NOT a Fedora issue.  It's a VMWare issue.  This is 
true as evidenced by the fact that those modules /can/ be compiled by 
GCC7, just not by vmware-modconfig script.  It happens, and with 
Workstation, relatively often as of late.


Seriously, if you're not happy with the issues with VMWare Workstation 
and Fedora, find another OS, like Ubuntu, that will provide you with 
more stable packages.  It probably won't stop the Workstation 
shenanigans, but they should be fewer and farther between.



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Re: [CentOS] Fedora bugs and EOL [was Re: CentOS users: please try and provide feedback on Fedora] Boltron

[Mark Haney]

On 07/31/2017 07:15 AM, Johnny Hughes wrote:

On 07/30/2017 02:07 PM, Walter H. wrote:

On 30.07.2017 20:22, Johnny Hughes wrote:

On 07/30/2017 09:41 AM, Walter H. wrote:

On 30.07.2017 14:29, Johnny Hughes wrote:

I personally have a Fedora machine that I keep updated and do some work
on all the time learning/testing.  I just seamlessly upgraded it from
Fedora 25 to Fedora 26 using a couple of dnf commands .. awesome
experience actually.

because of this feature to upgrade from one release to the next, I
thought to test this on my old computer;
fedora itself works fine, but this upgrade from 25 to 26 broke the
vmware workstaion completely ...
it doesn't work any more, any hints in net which could be found don't
work ...
and this was the goal to have a linux running with vmware workstation
instead of my old windows ...

but as it seems there is no way of achiving this ...


Looking at VMWare Workstation, it does not seem to run on Fedora at all.
It seems to run on :

  Ubuntu 16.04
  Red Hat Enterprise Linux 7.1
  CentOS 7.1
  Oracle Linux 7
  openSUSE 13.2
  SUSE Linux Enterprise Server 12

So, I'm not sure how it was running on Fedora 25 to get messed up by an
upgrade to Fedora 26.


with Fedora 25 everything worked fine, even the upgrade from VMware Wkst
12.5.6 to 12.5.7 with automatic recompilation of neccessary kernel modules
without my intervention ...
and the same when a kernel upgrade among other updates occured on Fedora
25, everything worked fine ...

but the upgrade from F25 to F26 killed my VMware Workstation :-(
even the updates which occured after this upgrade didn't help ...

Running external things like VMWare Workstation (or other 3rd party
custom compiled apps) is exactly what enterprise distros like RHEL,
CentOS, Ubuntu LTS, SUSE SLES are designed for .. running things already
compiled for a long period of time while providing security updates.

It is not just kernel modules that need to be compiled to run on a give
linux distribution, but everything that uses any specific shared
libraries linked against has to be compatible as well as the main shared
libraries (glibc).




Uh, I run VMWare workstation just fine on my F26 upgraded machine. No, 
it didn't work when I upgraded, but it's trivial to fix.


http://rglinuxtech.com/?p=1939

This link gets you a running workstation in about 5 minutes.  No, this 
wasn't really a Fedora issue, it's a VMWare issue.  You have to 
remember, Fedora /is/ bleeding edge packages and sometimes crap breaks.  
If you looked on the internet for a fix to this, you didn't look hard 
enough, this link is one of the first to pop up.  In fact, anytime a new 
kernel is installed, I check this site to see how much of a PITA it'll 
be to reboot the kernel and install the modules.


Personally, I would rather deal with these headaches on my Fedora box 
than I would on a CentOS box.  Primarily because I like the latest 
packages (in some cases I need them) and, I'm not freaked out about 
little things like VMWare Workstation needing some massaging to get nice 
with the OS.


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Re: [CentOS] CentOS 7, NM, and IPv6

[mark]

On 07/12/17 12:09, Gordon Messmer wrote:

On 07/12/2017 07:13 AM, m.r...@5-cent.us wrote:

4. It appears to try, several times, and then give up - as our
manager puts it, "I to renew the lease", "Here it is","Nope,
don't like that, try again", and eventually, after 4 or 5 or
so tries, gives up.



NM tends to log fairly verbose information.  It sounds like you've looked at 
the network traffic.  Have you looked at the logs on the affected systems?



Sorry, never got around to answering earlier, and we were all still looking.

First, a correction: the same thing is happening on C6 servers.

Next, there is *nothing*, not in dmesg*, not in /var/log/messages, to indicate 
when it failed, nor any failure message. No indication why the daemon didn't 
restart it.


* Ok, I've got one good thing to say about C7: dmesg -H. Love it.

  mark
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Re: [CentOS] chkconfig madness CentOS 7

[Mark Haney]

On 07/10/2017 04:11 PM, Jonathan Billings wrote:




On Jul 10, 2017, at 10:56, Mark Haney  wrote:

I have a couple of in use C7 boxes that were built with ntsysv and chkconfig 
for some old packages that needed to start using init.d.  (The person setting 
these up didn't know about systemd creating service files for older packages, 
so we're stuck with these as-is.  Here's my problem:

Error unpacking rpm package chkconfig-1.7.2-1.el7.x86_64
error: unpacking of archive failed on file /etc/init.d: cpio: rename
chkconfig-1.3.61-4.el7.x86_64 was supposed to be removed but is not!


I can't update the entire system because of this boondoggle and I can't come up 
with a way to resolve this safely on a running system.  WTH is going on, and 
why is this a problem?  And how the devil do I fix it?

/etc/init.d should be a symlink to /etc/rc.d/init.d. Someone must have created 
that directory after removing the symlink. You probably need to rename the 
directory, restore the symlink and move any files in the renamed directory to 
the correct directory.

Well, it was slightly more complicated than that.  But yeah, in essence 
that's what I needed to do.  Unfortunately, the move to systemd is a 
bloody nightmare and after the systemd-resolved vulnerabilities, I'd pay 
good money for RH/CentOS to trash that pile of crap.



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[CentOS] chkconfig madness CentOS 7

[Mark Haney]

I have a couple of in use C7 boxes that were built with ntsysv and 
chkconfig for some old packages that needed to start using init.d.  (The 
person setting these up didn't know about systemd creating service files 
for older packages, so we're stuck with these as-is.  Here's my problem:


Error unpacking rpm package chkconfig-1.7.2-1.el7.x86_64
error: unpacking of archive failed on file /etc/init.d: cpio: rename
chkconfig-1.3.61-4.el7.x86_64 was supposed to be removed but is not!


I can't update the entire system because of this boondoggle and I can't 
come up with a way to resolve this safely on a running system.  WTH is 
going on, and why is this a problem?  And how the devil do I fix it?



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Re: [CentOS] ntsysv and chkconfig update error

[Mark Haney]

It was just a standard 'yum update'.  I suppose I could try removing
ntsysv, but I"m not sure that'll fix it.  It seems the 'pre-existing rpmdb
problem is the issue here. The ntsysv and chkconfig versions match in the
Error.  But the error message after the '**' mentions different ntsysv and
chkconfig versions.  (ie 1.7.2-1.el7. instead of 1.7.2-1.el7_3.1).  I'm not
sure of the significance of that unless it's a problem in the RPM builds or
the rpmdb is still wrong even after a full rebuild.

I tried to do a yum check on that server but it seemed to hang, though
since I've never run that command, it may just be REALLY slow.

On Fri, Jul 7, 2017 at 4:43 AM, James Pearson 
wrote:

> Mark Haney wrote:
> >
> > We have a couple of CentOS 7 boxes that were built before I was hired to
> > clean up the kickstart script used for C7 boxes.  We had a couple of rpm
> > packages that were pre-C7 that were used and setup the old SysV Init way
> > using ntsysv and chkconfig on these boxes. (I finally fixed that in the
> > newer scripts.)  These are out in the field and I'm having to deal with
> > them as they are.  One thing I'm having trouble with is updating them
> > without this error:
> >
> >> Error: Package: ntsysv-1.7.2-1.el7_3.1.x86_64 (updates)
> >>Requires: chkconfig = 1.7.2-1.el7_3.1
> >>Installed: chkconfig-1.3.61-4.el7.x86_64 (@anaconda)
> >>chkconfig = 1.3.61-4.el7
> >>  You could try using --skip-broken to work around the problem
> >> ** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
> >> ntsysv-1.7.2-1.el7.x86_64 has missing requires of chkconfig = ('0',
> >> '1.7.2', '1.el7')
> >
> > Now, I've verified the chkconfig v1.7.2 package is available on the
> > mirror we're using, I've rebuilt the RPM database and nothing has
> > worked.  I'm not even sure what the problem is at this point. Anyone
> > have any ideas?
>
> What yum command line did you use that gave the above errors?
>
> I'm not an expert on yum, but the above errors seem to indicate that 3
> versions of chkconfig are involved: 1.7.2-1.el7_3.1, 1.7.2-1.el7 and
> 1.3.61-4.el7 - not sure of the significance of this ...
>
> I guess you could try removing ntsysv and then trying to update
> chkconfig and then re-install ntsysv :
>
>   yum remove ntsysv
>   yum update chkconfig
>   yum install ntsysv
>
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[CentOS] ntsysv and chkconfig update error

[Mark Haney]

We have a couple of CentOS 7 boxes that were built before I was hired to 
clean up the kickstart script used for C7 boxes.  We had a couple of rpm 
packages that were pre-C7 that were used and setup the old SysV Init way 
using ntsysv and chkconfig on these boxes. (I finally fixed that in the 
newer scripts.)  These are out in the field and I'm having to deal with 
them as they are.  One thing I'm having trouble with is updating them 
without this error:



Error: Package: ntsysv-1.7.2-1.el7_3.1.x86_64 (updates)
   Requires: chkconfig = 1.7.2-1.el7_3.1
   Installed: chkconfig-1.3.61-4.el7.x86_64 (@anaconda)
   chkconfig = 1.3.61-4.el7
 You could try using --skip-broken to work around the problem
** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
ntsysv-1.7.2-1.el7.x86_64 has missing requires of chkconfig = ('0', 
'1.7.2', '1.el7')


Now, I've verified the chkconfig v1.7.2 package is available on the 
mirror we're using, I've rebuilt the RPM database and nothing has 
worked.  I'm not even sure what the problem is at this point. Anyone 
have any ideas?



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Re: [CentOS] System Start-Up Issue

[Mark Haney]

On 07/03/2017 02:52 PM, ken wrote:

On 07/03/2017 02:41 PM, Gordon Messmer wrote:

On 07/03/2017 05:07 AM, Chris Olson wrote:

A progress
bar at the bottom of the start-up screen never reaches completion.



Press "alt+d" on the keyboard to disable the graphical (or text) 
progress bar and view the console output of the startup sequence. 

Is there a place (configuration file) where this can be made the default?


Edit grub and remove 'rhgb' from the kernel line.  Alternatively, you 
can boot to runlevel 3, which, I think, used to not have the graphical 
boot display.


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Re: [CentOS] System Start-Up Issue

[Mark Haney]

On 07/03/2017 10:52 AM, m.r...@5-cent.us wrote:

Chris Olson wrote:

 On Monday, July 3, 2017 5:58 AM, "m.r...@5-cent.us" 
wrote:
  Chris Olson wrote:


I went on vacation right after an update to one of our virtual CentOS
6.9 systems so it was not restarted for a period of time.  Now it will not
complete boot-up with the gnome display never fully launched.  A progress
bar at the bottom of the start-up screen never reaches completion. We
have not been able to detect a running system on the network.

Two options for stopping the CentOS 6.9 virtual machine have been tried.
One is to "power off" and the other is to "send the shutdown message".
Both of these options appear to work properly.  The shutdown output


Suggestion: boot to the previous kernel. If that works, reinstall the
update, then reboot to it.

We had real issues months back, where a yum-cron appeared to half-ignore
the exclude=kernel line in yum.conf, and it would consistently fail to
boot, but once the above was done, reinstalling the latest kernel, *then*
it rebooted with no problem.


Okay, stupid question, if yum-cron was jacked up months back are you 
still using it?  And if so, why?  Never in my life have I ever scheduled 
updates on any server for any reason.  Mostly because I don't trust it 
to do it right.  Also mostly because I use ansible to manage that, and 
that playbook is always manually run just in case there's an issue.


But yeah, you might be hosed. If this is a VM, do you not have a 
snapshot handy?  (I know, I'm late to the party but was camping this 
weekend.


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Re: [CentOS] [OT]multi-master DNS

[Mark Haney]

On 06/25/2017 12:22 PM, Vijay Rajah wrote:

Hello all,

We have  quite a bit of environment on "cloud". We are using our own 
domain names. For this purpouse we stood up a  BIND9 DNS instance on 
Centos 7. And, this being the cloud, we enabled key based dynamic DNS 
for instances to register themselves when they are spun-up. We have a 
single master and multiple slaves. all is well, untill mater goes down 
and we need to spin-up additional instances. Single master has become 
somewhat of a bottleneck


I have looked around, not able to find any solution, for a stable 
Multi-master DNS setup (outside of Windows AD).


Does any one have any specific pointers?


I don't know about anyone else, but in no way would I use Bind9 and DDNS 
for anything, multi-master or not.  I've never had any kind of stable 
success with DDNS and Bind.



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Re: [CentOS] RDP for Centos 7

[Mark Haney]

On 06/21/2017 11:22 AM, m...@tdiehl.org wrote:

Hi,

Does anyone know of a good program for doing RDP to windows servers on 
C-7?




KRDC?  I'm pretty sure KRDC works fine in C7.  (Though, I never use 
CentOS as a desktop, so YMMV.)



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Re: [CentOS] looking for graphing tools

[Mark LaPierre]

Hey Fred,

If you can organize your data into a spreadsheet you can use the built
in graphing abilities of LibreOffice Calc.  That should be sufficient
for a limited use application like you are describing.

I use LibreOffice Calc to make an hourly graph of my Internet upload and
download speed performance.

On 06/19/17 15:26, Fred Smith wrote:
> Hi!
> 
> I have bazillions of incoming (rejected) attempts to connect to my
> SMTP server, and I'm interested in separating out those that seem
> to come in huge bunches (e.g., the one from yesterday that ran for
> about 10 hours and sent over 4100 attempts), and graphing them so
> I can see the spacing and/or distribution in time.
> 
> I can figure out some simple scripting to turn the maillog entries
> into times since the epoch, or other formats, if needed, but I have
> no experience with the various graphing tools availabe, or even
> what (or where) they are.
> 
> I'd appreciate pointers-and-or-advice, should any of you have any
> such things to give.
> 
> thanks in advance!
> 
> Fred
> 


-- 
_
   °v°
  /(_)\
   ^ ^  Mark LaPierre
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Re: [CentOS] C7, systemd, say what?!

[Mark Haney]

On 06/08/2017 09:12 AM, Andrew Holway wrote:

I think we had enough of Systemd flaming last month. Please stop polluting
my inbox and find an operating system compatible with your worldview. It is
really tiresome to keep on hearing about it.

Huh. Okay, though I'm not sure when you became arbiter of this list.  If 
you don't like 'our worldview' discussions, maybe you need to find a 
different OS that suits your childish attitude.  Like Windows 95.


Mailing lists now are so full of children it's hard to even use them.  
Maybe you should leave IT if heated discussions make you uncomfortable.


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Re: [CentOS] C7, systemd, say what?!

[Mark Haney]

On 06/07/2017 11:24 AM, James Hogarth wrote:


Mark stop with the flame baiting please.

This is nothing systemd specific - and keep in mind /var/tmp is a
persistent temp area unlike /tmp which as it's tmpfs by default is of
course emptie don boot.
I would wholeheartedly disagree.  This IS something systemd specific.  I 
have never seen init.d blow itself up over bloody symlinks.  The 
readahead, while /possibly/ nice isn't at all necessary on modern 
hardware.  I want my hardware to boot consistently, not bomb like an 
Adam Sandler movie because of /symlinks/.


But hey, call it flamebait if you want. I'd be willing to bet a year's 
salary most admins hate systemd with a passion.



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Re: [CentOS] C7, systemd, say what?!

[Mark Haney]

Thanks for the info. Now, why it shouldn't have cleaned itself up when I
gave it the reboot command... I see too many (that's defined as more than
zero) cases where systemd WANTS TO BOOT FAST, and doesn't wait for things
to finish - sush as not getting the hostname from dhcp, and so having to
hardcode the name instead.

Systemd, as I've said before, seems to be targeted towards laptops. Not
servers. Not workstations. *bleah*
I'm still thinking it's a jacked up filesystem.  I'm not sure what fs 
you're using, though the default is xfs, but I'd look at dmesg and 
boot.log to see if the kernel is finding issues with the drives or just 
the fs.  It's also possible that server had been up a long time and RAM 
was funky.  I've seen both of these happen before.


As far as using systemd based systems on servers, a month or so back, I 
pushed a new C7 kickstart for servers we send to customers and haven't 
seen anything to make me think systemd isn't good for servers.  That 
doesn't mean it's not a giant POS for administrators.  If only they 
hadn't jacked the syntax all to hell from initd, I might be slightly 
happier with it.  That by itself has to be the most ridiculous thing any 
group of devs have ever done. And for no rational reason either.  



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Re: [CentOS] C7, systemd, say what?!

[Mark Haney]

I'm not sure why it's trying to open anything  in /var/tmp to be 
honest.  Jacked up filesystem maybe?  Granted I know very little about 
systemd except it sucks on levels that I can't begin to explain.



On 06/07/2017 10:10 AM, m.r...@5-cent.us wrote:

I just updated a system - as in minutes ago, and log back in after it
reboots, and this is in dmesg:
[   88.202272] systemd-readahead[484]:
open(/var/tmp/dracut.fP4yj1/initramfs/usr/bin/loginctl) failed: Too many
levels of symbolic links
[   88.202515] systemd-readahead[484]:
open(/var/tmp/dracut.fP4yj1/initramfs/usr/lib/systemd/system/dracut-emergency.service)
failed: Too many levels of symbolic links

Anyone know what this is - some weird bug, a garbage message?

 mark

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Re: [CentOS] C7 ansible 2.3 become_method: su not working

[Mark Haney]

Well, it turns out, after 4 days of digging, that the become_method: su 
option has a catastrophic bug in it that makes it fail when the method 
is SU.  At least for version 2.3.0 of Ansible.  I just found v2.3.1 in 
EPEL testing that I may pull just to see if that fixes the problem.  I 
can't believe that bug managed to get overlooked when released.  Ah well.




On 06/05/2017 02:02 PM, Gordon Messmer wrote:

On 06/05/2017 10:40 AM, Mark Haney wrote:
[root@ansible ~]# ansible-playbook playbooks/radtest.yml 
--ask-become-pass
SUDO password: 



ansible-playbook --become-method su --ask-become-pass 
playbooks/radtest.yml


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[CentOS] C7 ansible 2.3 become_method: su not working

[Mark Haney]

I just don't know what else to try. I've beat my head on this for 3 days 
now and it's becoming obvious that either Ansible 2.3 is a complete 
disaster, or the CentOS 7 package is a complete cluster. Here's my 
problem. I am working on getting an ansible server to manage about 100 
or so CentOS 6 servers.  All have an unprivileged user account setup (up 
to 3 years before I got here in April) but that user account isn't setup 
with sudo access.  The way to get to root is 'su'.


I'm not a newbie with Ansible as I used it extensively in my previous 
position to manage ~70 or so Ubuntu servers.  The Ansible is CentOS 7.  
I'm working on getting Ansible to play nice with privilege escalation 
using SU and NAFT has worked.  Here's an example (very simple) playbook:



Because I'm having to use 'su' I have to either add the user password to 
the inventory file or use the --ask-become-pass parameter to the command 
line.  Every time I do, I get this:


[root@ansible ~]# ansible-playbook playbooks/radtest.yml --ask-become-pass
SUDO password:

It bombs timing out on privilege escalation.  Every single time. I'm 
absolutely frustrated and am almost ready to throw ansible to the curb 
for something that doesn't suck so bad.  But before I do, I'm asking the 
list, anyone seen anything like this before?  I could post to the 
ansible list, but it's a google group and God knows when I might get a 
reply.


BTW, setting up root with key-only auth is an option, but would be a 
real PITA to configure 100+ external servers by hand with the keys and 
reconfig sshd for it.



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Re: [CentOS] yum install does not downgrade

[Mark Haney]

Personally, I would do one of three things:

1. Use the -m command to run 'yum install ' which /might/ work.

2. Uninstall the newer package and install the version you want. (Check 
the 'state' directive to do this.)


3. Pin that package version when creating the server/VM so as not to be 
updated.


#3 is useful to us as we kickstart all our servers and VMs, and this 
eliminates the problem going forward.  Then, when we're ready to upgrade 
the pinned package, we have an ansible playbook that unpins that 
version, installs the new version (even if not latest), then re-pins.


HTH.


On 06/01/2017 03:46 PM, Anand Buddhdev wrote:

We're using ansible to configure our CentOS 6 servers, and we have a
task to install a specific version of a package:

- name: install thrift2
   yum: name=ripencc-thrift2-{{ version }}

In this ansible task, the "version" variable is set by the operator.
When we want to upgrade, it works. But today we had to downgrade, and
noticed that ansible wasn't downgrading it. So we tried by hand (the
installed version was 1.0.8):

# yum install ripencc-thrift2-1.0.3

I don't have the output handy, because a colleague was working on it,
but basically, yum said something like "package already installed" and
refused to downgrade it, even though the package is in our repository.

I have a strong sense that yum _used to_ downgrade packages if asked to
install an older version, but perhaps I am misremembering.

Nevertheless, I want to ask: is this a bug in yum? If asked to install a
specific version, should it not upgrade OR downgrade as needed?

Regards,
Anand
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Re: [CentOS] CentOS 6.9 Skylake soft error

[Mark (Netbook)]

Hello Andy,

The CentOS 6.9 kernel we are using is 2.6.32-696.el6.x86_64.

Regards,
Mark Woolfson
MW Consultancy Ltd
Leeds
United Kingdom
Tel: +44 113 259 1204
Mob: +44 786 065 2778
-Original Message- 
From: Andreas Benzler

Sent: Wednesday, May 31, 2017 9:54 AM
To: CentOS mailing list
Subject: Re: [CentOS] CentOS 6.9 Skylake soft error

Hello Mark,

which kernel you use? Sometimes it is only an „information“.

Sincerely

Andy



Am 31.05.2017 um 10:00 schrieb Mark (Netbook) :

Hello,

I have an Intel NUC6i5 (Skylake i5-6260u processor) running CentOS 6.9 and 
there are no real problems. However during boot an error occurs in dmesg 
where a PCH unknown device 0x9d48 is logged. How can I get rid of this 
error output?


Thank you,
Mark
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Re: [CentOS] CentOS 6.9 Skylake soft error

[Mark (Netbook)]

Hello,

I have an Intel NUC6i5 (Skylake i5-6260u processor) running CentOS 6.9 and 
there are no real problems. However during boot an error occurs in dmesg where 
a PCH unknown device 0x9d48 is logged. How can I get rid of this error output?

Thank you,
Mark
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Re: [CentOS] CentOS 6 dhcpd custom log issues

[Mark Haney]

I've done more testing and I've found something very interesting.  I've
tested logging with our entire string (which will be below) with slight
changes to the 'if' statement solely looking at the 'dhcp-message-type = '
parameter.  Of the four message types we routinely see some work and some
don't: (ie: if option dhcp-message-type = # { log...)

Message-Type 1 (DISCOVER): logging works
Message-Type 2 (OFFER):  logging does NOT work
Message-Type 3 (REQUEST) logging works
Message-Type 5 (ACK) logging does NOT work

And by 'does not work' I mean it doesn't log anything at all.  As if it's
not matching on those message types at all. I know they are being logged in
syslog, where all these messages are logged to, so I know we're getting
OFFERs and ACKs, as they are logged normally in syslog.

So, anyone have any idea WTF is going on here?  I suppose I could log based
on REQUEST, but I'm afraid our data would be inaccurate if a request isn't
ACK'd.

On Fri, May 26, 2017 at 2:04 PM, Mark Haney  wrote:

> Hi all,
>
> I've got an issue with C6's dhcpd custom logging that I cannot figure
> out.  Hopefully someone has an idea, or has seen a similar issue.  We have
> dhcpd logging to /var/log/messages a custom header (DHCPUSER:) with MAC, IP
> and Circuit-ID.
>
> I'll not bore you with the guts, so here's the beginning of that line in
> dhcpd.conf:
>
> if exists agent.circuit-id
>  {
> log (info, concat( "DHCPUSER:,", concat (suffix (concat ("0",
> binary-to-ascii.
>
> We log this specifically to have rsyslog dump that line (keyed on
> DHCPUSER) into a MySQL database for use by a web app our development team
> built so that our customers can get reports on their DHCP leases.  (Neonova
> provides help desk, engineering and Tier 2 and 3 tech support to rural ISPs
> in the US.)
>
> Our problem is that this method logs every entry that has the CID in the
> packet.  Which covers most DHCP requests.  As such, with our bigger
> customers, this logging bogs down MySQL (and the file system on older ext3
> based CentOS 6 boxes we have out in the field) to the point where, after a
> major outage and recovery, the DHCP server can't handle the load and people
> are unable to get new DHCP leases, resulting in calls to our help desk.
>
> What I want to do is have this data logged in the DHCPUSER line on the
> DHCPACK and only that.  For some reason, when I try replace the above with
> 'if option dhcp-message-type = 5', nothing is getting logged.  All the
> instances of this I've googled have similar, notably one from ~2008 that
> has:
>
>  if exists agent.circuit-id and dhcp-message-type = 3
>
> and that apparently worked fine.  I know the circuit-id is included in the
> ACK packet (tcpdump is your friend), but even on the check to log for only
> the dhcp message type 5 isn't working.
>
> Are the newer dhcpd versions different syntactically?  What's the correct
> method for logging on the DCHP Message type with the most recent C6
> version? (dhcp-4.1.1-53.P1.el6.centos.x86_64)
>
> Any ideas?
>
> --
> [image: photo]
> Mark Haney
> Network Engineer at NeoNova
> 919-460-3330 <(919)%20460-3330> (opt 1) • mark.ha...@neonova.net
> www.neonova.net <https://neonova.net/>
> <https://www.facebook.com/NeoNovaNNS/>  <https://twitter.com/NeoNova_NNS>
> <http://www.linkedin.com/company/neonova-network-services>
>



-- 
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Network Engineer at NeoNova
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[CentOS] CentOS 6 dhcpd custom log issues

[Mark Haney]

Hi all,

I've got an issue with C6's dhcpd custom logging that I cannot figure out.
Hopefully someone has an idea, or has seen a similar issue.  We have dhcpd
logging to /var/log/messages a custom header (DHCPUSER:) with MAC, IP and
Circuit-ID.

I'll not bore you with the guts, so here's the beginning of that line in
dhcpd.conf:

if exists agent.circuit-id
 {
log (info, concat( "DHCPUSER:,", concat (suffix (concat ("0",
binary-to-ascii.

We log this specifically to have rsyslog dump that line (keyed on DHCPUSER)
into a MySQL database for use by a web app our development team built so
that our customers can get reports on their DHCP leases.  (Neonova provides
help desk, engineering and Tier 2 and 3 tech support to rural ISPs in the
US.)

Our problem is that this method logs every entry that has the CID in the
packet.  Which covers most DHCP requests.  As such, with our bigger
customers, this logging bogs down MySQL (and the file system on older ext3
based CentOS 6 boxes we have out in the field) to the point where, after a
major outage and recovery, the DHCP server can't handle the load and people
are unable to get new DHCP leases, resulting in calls to our help desk.

What I want to do is have this data logged in the DHCPUSER line on the
DHCPACK and only that.  For some reason, when I try replace the above with
'if option dhcp-message-type = 5', nothing is getting logged.  All the
instances of this I've googled have similar, notably one from ~2008 that
has:

 if exists agent.circuit-id and dhcp-message-type = 3

and that apparently worked fine.  I know the circuit-id is included in the
ACK packet (tcpdump is your friend), but even on the check to log for only
the dhcp message type 5 isn't working.

Are the newer dhcpd versions different syntactically?  What's the correct
method for logging on the DCHP Message type with the most recent C6
version? (dhcp-4.1.1-53.P1.el6.centos.x86_64)

Any ideas?

-- 
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Network Engineer at NeoNova
919-460-3330 <(919)%20460-3330> (opt 1) • mark.ha...@neonova.net
www.neonova.net <https://neonova.net/>
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Re: [CentOS] Fix for the CVE-2017-7494?

[Christian, Mark]

On Fri, 2017-05-26 at 11:19 -0400, Bernard Fay wrote:
> Hi,
> 
> Does a fix has already been made in the CenOS RPM repositories for this
> Samba remote execution code vulnerability, CVE-2017-7494?
yes. samba-3.6.23-43.el6_9.x86_64.rpm



> 
> Thx,
> Bernard
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Re: [CentOS] more recent perl version?

[Christian, Mark]

On Wed, 2017-05-24 at 16:35 -0400, Jon LaBadie wrote:
> On Wed, May 24, 2017 at 10:16:15PM +0200, hw wrote:
> > Johnny Hughes schrieb:
> > > On 05/23/2017 11:44 AM, hw wrote:
> > > > 
> > > > Hi,
> > > > 
> > > > are there packages replacing the ancient perl version in
> > > > Centos 7 with a more recent one, like 5.24?  At least the
> > > > state feature is required.
I think you are looking for centos software collections: https://wiki.centos.org
/AdditionalResources/Repositories/SCL

# yum install centos-release-scl
# yum install rh-perl524

Mark
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[CentOS] Thunderbird Regression

[Mark LaPierre]

Has anyone else noticed a 10X slowing of the time it takes Thunderbird
to load an email that contains graphics on CentOS 6?  The last
Thunderbird update moved us from Thunderbird 45 to Thunderbird 52.

While Thunderbird was loading the images the hard drive was busy
cranking out seeks.  I have all my local home accounts mounted on a
software raid.

I solved the problem with a downgrade to Thunderbird 45, but that's a
poor solution not keeping Thunderbird up to date with the latest
security patches.

-- 
_
   °v°
  /(_)\
   ^ ^  Mark LaPierre
Registered Linux user No #267004
https://linuxcounter.net/

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Re: [CentOS] [SPAM?] Re: CentOS 7 on HP DL160 G6

[mark]

On 05/02/17 21:49, H wrote:

On 05/02/2017 08:01 AM, mark wrote:

On 05/02/17 06:56, Steven Tardy wrote:



On May 1, 2017, at 8:49 PM, H  wrote:

the computer locks up at random intervals


Anything in /var/log/mcelog?
Is the "edac" module running?
Does that model support bundle include any Intel MCA files?


systemctl start ipmi
ipmitool sel list


'Failed to start ipmi.service: Unit not found'


yum install OpenIPMI ipmitool

Then systemctl enable ipmi and systemctl start ipmi, then run ipmitool sel list.

Um... I just had a thought - this is a server, right, not a desktop?

mark

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Re: [CentOS] CentOS 7 on HP DL160 G6

[mark]

On 05/02/17 06:56, Steven Tardy wrote:



On May 1, 2017, at 8:49 PM, H  wrote:

the computer locks up at random intervals


Anything in /var/log/mcelog?
Is the "edac" module running?
Does that model support bundle include any Intel MCA files?


systemctl start ipmi
ipmitool sel list

    mark

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Re: [CentOS] OT: systemd Poll

[mark]

On 04/12/17 22:02, Always Learning wrote:


On Mon, 2017-04-10 at 22:45 +0200, Nicolas Kovacs a écrit:


On my Slackware servers (no systemd, no funny network interface names),
I just edit /etc/udev/rules.d/70-persistent-net.rules and switch eth0
and eth1 (and eth2 etc.) if needed.

Keep It Simple.


Un bon idea !
Ich auch
Ikki ook :-)

That's even scientific: "entities shall not be multiplied without need" - 
Occam's razor.


mark

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Re: [CentOS] Re CentOS and Intel graphics

[Mark (Netbook)]

Hello,

I found kernel-ml.
Are there any dependencies that I should be aware of?
I am trying to apply it to either RHEL 6.9 or CentOS 6.9

Regards,
Mark Woolfson
-Original Message- 
From: Nux!

Sent: Wednesday, April 12, 2017 5:28 PM
To: CentOS mailing list
Subject: Re: [CentOS] Re CentOS and Intel graphics

Google ?

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

- Original Message -

From: "Mark (Netbook)" 
To: "CentOS mailing list" 
Sent: Wednesday, 12 April, 2017 17:25:12
Subject: Re: [CentOS] Re CentOS and Intel graphics



Hello,

Where do I find kernel-ml?

Regards,
Mark Woolfson
-Original Message-
From: Nux!
Sent: Wednesday, April 12, 2017 5:18 PM
To: CentOS mailing list
Subject: Re: [CentOS] Re CentOS and Intel graphics

Give kernel-ml a try, else try CentOS 7.

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

- Original Message -

From: "Mark (Netbook)" 
To: "CentOS mailing list" 
Sent: Wednesday, 12 April, 2017 17:13:56
Subject: [CentOS] Re CentOS and Intel graphics



Hello,

I have an Intel NUC7i3 with 620 graphics and an Intel NUC7i7 with 640
graphics.
I have loaded CentOS 6.9 and the graphics is not fully working.
I believe that I need a driver.
Does CentOS support the Intel 620 and 640 graphics and if not, can 
someone

please point me in the direction of the drivers, with install
instructions.

Regards,
Mark Woolfson
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Re: [CentOS] Re CentOS and Intel graphics

[Mark (Netbook)]

Hello,

Where do I find kernel-ml?

Regards,
Mark Woolfson
-Original Message- 
From: Nux!

Sent: Wednesday, April 12, 2017 5:18 PM
To: CentOS mailing list
Subject: Re: [CentOS] Re CentOS and Intel graphics

Give kernel-ml a try, else try CentOS 7.

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

- Original Message -

From: "Mark (Netbook)" 
To: "CentOS mailing list" 
Sent: Wednesday, 12 April, 2017 17:13:56
Subject: [CentOS] Re CentOS and Intel graphics



Hello,

I have an Intel NUC7i3 with 620 graphics and an Intel NUC7i7 with 640 
graphics.

I have loaded CentOS 6.9 and the graphics is not fully working.
I believe that I need a driver.
Does CentOS support the Intel 620 and 640 graphics and if not, can someone
please point me in the direction of the drivers, with install 
instructions.


Regards,
Mark Woolfson
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[CentOS] Re CentOS and Intel graphics

[Mark (Netbook)]

Hello,

I have an Intel NUC7i3 with 620 graphics and an Intel NUC7i7 with 640 graphics.
I have loaded CentOS 6.9 and the graphics is not fully working.
I believe that I need a driver.
Does CentOS support the Intel 620 and 640 graphics and if not, can someone 
please point me in the direction of the drivers, with install instructions.

Regards,
Mark Woolfson
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Re: [CentOS] OT: systemd Poll

[Christian, Mark]

On Tue, 2017-04-11 at 12:11 -0400, Jonathan Billings wrote:
Maybe we should just jump right to the end that we always have each
> time this comes up.  systemd is the death of linux and you're leaving
> for FreeBSD/devuan/whatever.  Lets just move along now.
+1
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Re: [CentOS] libreoffice vs. PDF fillable forms

[mark]

Michael Hennebry wrote:

On centos 6, I've been trying to use LibreOffice to fill in
entries of a PDF with fillable forms.
In addition to all my other problems, the font size is stuck on 24.
I can change it, but whenever I so much a take a deep breath,
it's back to 24 again.
How do I stop this?

So far, all my searches have given me stuff about making fillable forms,
but nothing about dealing with existing ones.


For CentOS 6, I just use acroread. I'm annoyed to find that once I've
saved the forms via print->CUPS-pdf, evince, if I remember from a couple
weeks ago, can see the filled out form, but not print it filled out, while
acroread can print it out for real (like, sending them into a Certain
Government Agency, it being that time of the year).

Haven't tried in CentOS 7, though I did just find something annoying - the
default pdf viewer in 7, okular, won't let me copy and paste from a .pdf
to a text document. However, evince *does* let me select some lines and
copy and paste.

   mark

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Re: [CentOS] Sendmail is considered deprecated

[Mark Milhollan]

On Fri, 31 Mar 2017, Xinhuan Zheng wrote:

>Today I searched redhat official portal and learned that Sendmail is 
>considered deprecated. By default, CentOS 7 will use postfix as MTA. I 
>need good advise on what it means to us. 

As of today you don't need to do anything, apart from explicitly 
installing Sendmail after any fresh install (either in the installer or 
any time after), e.g., yum install sendmail && yum remove postfix.

But deprecated suggests it will eventually be made unavailable so it 
would be wise to begin planning to transition to an alternative, though 
when that will happen is unkown so there's no timetable you can work 
towards.  Since Postfix is the only other MTA they provide that's what 
you should consider most strongly, though if you'd like alternatives 
EPEL provides at least Exim and OpenSMTPD.


/mark
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Re: [CentOS] firewalld management on a headless server

[Mark Milhollan]

On Wed, 29 Mar 2017, Robert Moskowitz wrote:
>On 03/29/2017 07:38 AM, Leon Fauster wrote:

>>We have good results with http://www.shorewall.net/ an iptables
>>"abstraction".
>>Despite its not a GUI, the streamlined configuration helps to be effective.
>
>From what I can determine, it is still iptables.  Not firewalld.

That's what Leon said, shorewall is an iptables abstraction, and 
iptables is a command that manipulates netfilter.

FirewallD is similar in that it abstracts and simplifies using netfilter 
without using the iptables command.  Which has a GUI that can be used 
remotely but it is not web based as requested.  Fedora's CoPilot 
probably has a module for it, but I don't know that it can be used with 
a CentOS based server.  Webmin likely has a module for it by now.


/mark
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Re: [CentOS] Python 3.x on Centos 7

[Christian, Mark]

On Thu, 2017-03-23 at 23:27 +, Christian, Mark wrote:
> On Thu, 2017-03-23 at 18:16 -0500, Matt wrote:
> > 
> > Is there a way to install Python 3.x on Centos 7.x without breaking
> > anything that depends on an older version of Python? 
> Yes.
> # yum install python34
I should have mentioned that python34 comes from the epel repo.

which can be installed from:
https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F
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Re: [CentOS] Python 3.x on Centos 7

[Christian, Mark]

On Thu, 2017-03-23 at 18:16 -0500, Matt wrote:
> Is there a way to install Python 3.x on Centos 7.x without breaking
> anything that depends on an older version of Python?  This server is a
> minimal Centos 7 install that primarily runs a simple LAMP setup.
Yes.
# yum install python34


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Re: [CentOS] upgrading Mysql 5.0.95

[Mark Weaver]

On 03/19/2017 01:06 PM, Robert Nichols wrote:

On 03/19/2017 07:32 AM, Mark Weaver wrote:

I'm getting things ready to upgrade my aging installation of MySQL
5.0.95 on my CentOS 5 LAMP server. With the impending EOL date of 3.31
fast approaching my sense of doom and urgency is increasing.


Packages don't disappear after 3/31. They just get moved to
vault.centos.org, where they will remain, never to be updated again.
Heck, you can still get CentOS 2.1 packages from there.

--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.



It's ok... its all a mute point because earlier today I did everything 
in true linux tradition: I fixed it until I broke it and I broke it but 
good. MySQL no longer runs on that LAMP server. Now it's just a LA_P 
server. :-) and doing a fine job running Sendmail I might add.


I've just had to move all the databases over to the host I'm migrating 
to a little earlier than I'd planned.


Mark



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Re: [CentOS] upgrading Mysql 5.0.95

[Mark Weaver]

On 03/19/2017 10:43 AM, Jonathan Billings wrote:

On Sun, Mar 19, 2017 at 10:24:27AM -0400, Mark Weaver wrote:

On 03/19/2017 10:00 AM, Jonathan Billings wrote:
>On Sun, Mar 19, 2017 at 08:32:38AM -0400, Mark Weaver wrote:
>>I'm getting things ready to upgrade my aging installation of MySQL
>>5.0.95 on my CentOS 5 LAMP server. With the impending EOL date of 3.31
>>fast approaching my sense of doom and urgency is increasing.
>
>It isn't clear to me, but are you migrating away from CentOS 5 as part
>of this MySQL update?
>

Heavens no... I love my CentOS 5 server. I going to try and keep it around
as long as possible. I've got another machine in the rack that I've got
CentOS 7 installed on, but there are differences in that OS and the items
running on it that I don't like at all. SELinux comes to mind...

No, I definitely have plans on running CentOS5 for while long. Mostly
because there's an issue with one of the web apps I'm running on my C5
server that is having problems running correctly on C7. I haven't figured
out why yet.


I figured that since you mentioned the EOL date of 3.31, you
understood that meant no new updates for CentOS 5. No more support
for CentOS 5. That means you'd be putting in all this work to migrate
mysql on a platform that isn't supported anymore. Why bother updating
mysql then? Its going to be living on an unsupported platform anyway,
with no bug fixes or security patches.



I think I explained that above... There are issues with one of my main 
web applications on my CentOS 7 box that are taking a lot more time 
resolving then was anticipated, so I'd like to upgrade MySQL on the 
CentOS 5 server while I'm working things out.


Guess I'll stumble through this as well...

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Re: [CentOS] upgrading Mysql 5.0.95

[Mark Weaver]

On 03/19/2017 10:00 AM, Jonathan Billings wrote:

On Sun, Mar 19, 2017 at 08:32:38AM -0400, Mark Weaver wrote:

I'm getting things ready to upgrade my aging installation of MySQL
5.0.95 on my CentOS 5 LAMP server. With the impending EOL date of 3.31
fast approaching my sense of doom and urgency is increasing.


It isn't clear to me, but are you migrating away from CentOS 5 as part
of this MySQL update?



Heavens no... I love my CentOS 5 server. I going to try and keep it 
around as long as possible. I've got another machine in the rack that 
I've got CentOS 7 installed on, but there are differences in that OS and 
the items running on it that I don't like at all. SELinux comes to mind...


No, I definitely have plans on running CentOS5 for while long. Mostly 
because there's an issue with one of the web apps I'm running on my C5 
server that is having problems running correctly on C7. I haven't 
figured out why yet.


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[CentOS] upgrading Mysql 5.0.95

[Mark Weaver]

Hi All,

I'm getting things ready to upgrade my aging installation of MySQL
5.0.95 on my CentOS 5 LAMP server. With the impending EOL date of 3.31
fast approaching my sense of doom and urgency is increasing.

I see that the necessary packages are available in @base and @updates -
mysql51 and mysql55 respectively but from all the information I've read
on the matter so far I'm left with a few questions I don't yet have
answers to.'

What I've done so far and thankfully was able recover from:

1. installed and enabled to epel repo
   - ran yum remove mysql
   - this command wanted to remove a few things I wanted to keep in
 place like dovecot and a few php53 packages. I didn't want to have
 to go back and clean up any messes that would create. So, I used
 the rpm -e --nodeps command to remove the MySQL packages.
   - because this was a redhat repo it installed the binaries in a
 total different place AND tossed all my existing data directories.
 and yes I spit coffee all over my laptop screen and yes, I did have
 data dir backups and a dump of MySQL data. HOLY CRAP!

2. removed the epel packages
  - disabled this repo - for ever at least for now...

3. reinstalled the old MySQL 5.0.95 packages - because I was
   hyper-ventilating
  - reset roots password
  - imported all the databases from the dump and checked my web apps
  - everything working again.
  - I did have to recreate the mysql.servers table to be able to flush
privileges.

I understand that mysql51 is available in @base for the sole purpose of
upgrading old MySQL and mysql55 is in updates for getting to 5.5,
however here is where things get a little fuzzy for me:

Steps for Upgrading (as I understand them):

1. Take a dump of all mysql database using mysqldump --add-drop-database
--all-databases
2. Stop mysql services
3. make a backup of data directories: /var/lib/mysql (but its not 
_supposed_ to remove the data directories.)
3. yum remove mysql mysql-server (again, it will include a few things I 
don't want removed. so, i'll have to use rpm -e --nodeps and list the 
packages for removal then issue yum clean all.'

4. yum install mysql51
5. start mysql service
6. run command mysql_upgrade...
(here's where things start getting fuzzy)

Question #1:
  is this command to be run from the commandline or 
  should I log into mysql as root user and run the command?

Question #2:
  at this point I will have mysql 5.1 installed and running but to get
  up to 5.5 am I expected to yum remove 5.1 and then yum install 5.5
  from @updates and repeat steps 5 and 6 OR simply run the command
  yum update mysql51* to catch all already installed mysql51 packages
  to and then run the mysql_update command to bring data up to date
  with the current mysql install?

THank you for your kind attention...


--
Mark
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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/09/2017 10:58 AM, Paul Heinlein wrote:


Usually, testsaslauthd needs a service name. In this case,

testsaslauthd -u username -p mypassword -s smtp

If your password has any characters a shell might misinterpret (*, !,
<, >, &, ...), make sure you enclose it in quotation marks.

What have you seen in your logs (usually /var/log/maillog on CentOS
systems)? If sendmail is having trouble setting up TLS/SSL, it will
let you know!

You may have to post the entire contents of your sendmail.mc (the m4
file), redacted as necessary to obscure any non-relevant bits that may
be sensitive.


Alexander... Paul,

My apologies for taking so long to reply. I did get everything worked 
out and if I'm honest I had to go through all the crap I went through to 
get everything work; including TLS. Working with MS Exchange and other 
MS server environment products, not to mention all the other things 
included in that, have made my linux skills rather rusty.


Now that I've done it and actually understand what's going on I can't 
believe how blasted easy it really is and feel a little foolish; mostly 
for allowing my Linux skills to get rusty to begin with. Hell! my CentOS 
5 server simply runs, doesn't complain, doesn't break down or choke and 
puke on updates. (thats one of the reasons I use to justify my skills 
getting rusty. ;P )


But, thank you gentlemen for your assistance. It is appreciated.

Now... one last question: Is it better to use self-signed certs for 
Sendmail, or is it better to get CA Authority signed certs for sendmail? 
I get all my web server certs from Go Daddy, but from what I've read so 
far Sendmail seems to experience issues with CA Authority signed certs 
that contain a common name and I /believe/ certs from places like Go 
Daddy require the common name field no be empty.


thanks in advance...
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Re: [CentOS] Fw: CentOS 6, flash-plugin crashing

[mark]

On 01/30/17 19:27, Chris Olson wrote:

I have had other flash crashes.  If you send me the radio station
links, I will give them a try on my CentOS 6.8 and my CentOS 7.xsystems.


 On Monday, January 30, 2017 4:58 PM, "m.r...@5-cent.us"  
wrote:


 Anyone else seeing this? I'm playing streaming media, and after about 10
or 15 min, flash-plugin crashes. I've had this happen today on streams
from two separate radio stations.

Sure:  kutx.org (U of TX, Austin), and wqxr.org (NYC classical station). On 
both, I'm using their default player, which uses flash.


A currently-updated flash-plugin, and firefox was just updated in the last 
week, with the critical update.


mark

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Re: [CentOS] [Fwd: The CentOS list]

[mark]

On 01/31/17 04:53, Tony Mountifield wrote:

In article <37213.128.135.52.6.1485815997.squir...@cosmo.uchicago.edu>,
Valeri Galtsev  wrote:

Dear All,

Mark has problem sending mail to centos@centos.org list... He has trouble
with flash plugin on CentOS 6, please, take a look at his e-mail below.
I'll try to see what I can do to help, but what I can do definitely is no
match to Experts on this list.

Thanks in advance!

Valeri


Mark's original message asking about flash-plugin did eventually show up,
as I'm sure people have seen by now.

Looking at its Received headers, it appears it got stuck for 5 hours at
Mark's email provider. It was submitted to host290.hostmonster.com using
squirrelmail at 18:56 GMT, but didn't leave that machine for the next hop
(cmgw2) until 23:55 GMT.

That's interesting. Hoping this gets through - I did get a bounce from nixspam 
after 19:00


mark

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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 07:09 PM, Mark Weaver wrote:

On 03/08/2017 06:42 PM, Paul Heinlein wrote:
> On Wed, 8 Mar 2017, Mark Weaver wrote:
>
> > On 03/08/2017 11:00 AM, Paul Heinlein wrote:
> >> On Wed, 8 Mar 2017, Mark Weaver wrote:
> >>
> >> > Hello all,
> >> >
> >> > I've been googling my brains out since yesterday looking for
> >> > up-to-date information on this matter, and have found
> >> > information that is anywhere from 15 to 5 years old. I'd really
> >> > like some information that much more up to date on the subject.
> >> > Specifically configuring Sendmail SMTP authentication (_no smart
> >> > host stuff_).
> >>
> >> I wrote this article years ago:
> >>
> >> https://www.madboa.com/geek/sendmail-auth/
> >>
> >> The configuration outlined there is essentially unchanged today. I
> >> have it running on a CentOS 7 machine with sendmail 8.14.
> >>
> >> The only real change is the SOCKETDIR setting in
> >> /etc/sysconfig/saslauthd, which is now /run/saslauthd (rather than
> >> /var/run/saslauthd). And, of course, I use systemctl rather
> >> thachkconfig to control boot-time behavior.
> >
> > Hi Paul,
> >
> > I followed your guide to the letter, however I think it seems I
> > missed something. When I test with telnet to port 25 this is the
> > result:
> >
> >> telnet merlin 25
> > Trying 10.10.3.6...
> > Connected to merlin.ciss.local.
> > Escape character is '^]'.
> > 220 mdw1982.com ESMTP Sendmail 8.14.7/8.13.8; Wed, 8 Mar 2017
> 16:53:31 -0500
> > ehlo merlin
> > 250-mdw1982.com Hello [10.10.3.102], pleased to meet you
> > 250-ENHANCEDSTATUSCODES
> > 250-PIPELINING
> > 250-8BITMIME
> > 250-SIZE
> > 250-DSN
> > 250-ETRN
> > 250-DELIVERBY
> > 250 HELP
> >> auth login
> > 504 5.3.3 AUTH mechanism login not available
> >
> > thoughts?
>
> Many. :-)
>
> Check your mail log for clues.
>
> Ensure you have a valid SSL certificate and key. Sendmail is touchy
> about permissions on the key file. Try googling for
> confDONT_BLAME_SENDMAIL and GroupReadableKeyFile.
>
> Make sure saslauthd is configured and running.
>
> Compile your .mc (m4) file with the macros distributed with the
> version of sendmail you're actually running. This line suggests you're
> not:
>
> mdw1982.com ESMTP Sendmail 8.14.7/8.13.8
>
> That's a first stab at things to try.
>
I fixed the version mis-match by installing sendmail-cf package and
recompiling sendmail.mc. saslauthd is running and conigured according to
your specs. So, I'm not sure what's missing.
Still googling around and found some things that appear to be missing 
from the sendmail config, but when I test saslauthd it doesn't appear to 
be working.


testsaslauthd -u username -p mypassword
0: NO "authentication failed"



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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 06:42 PM, Paul Heinlein wrote:

On Wed, 8 Mar 2017, Mark Weaver wrote:

> On 03/08/2017 11:00 AM, Paul Heinlein wrote:
>> On Wed, 8 Mar 2017, Mark Weaver wrote:
>>
>> > Hello all,
>> >
>> > I've been googling my brains out since yesterday looking for
>> > up-to-date information on this matter, and have found
>> > information that is anywhere from 15 to 5 years old. I'd really
>> > like some information that much more up to date on the subject.
>> > Specifically configuring Sendmail SMTP authentication (_no smart
>> > host stuff_).
>>
>> I wrote this article years ago:
>>
>> https://www.madboa.com/geek/sendmail-auth/
>>
>> The configuration outlined there is essentially unchanged today. I
>> have it running on a CentOS 7 machine with sendmail 8.14.
>>
>> The only real change is the SOCKETDIR setting in
>> /etc/sysconfig/saslauthd, which is now /run/saslauthd (rather than
>> /var/run/saslauthd). And, of course, I use systemctl rather
>> thachkconfig to control boot-time behavior.
>
> Hi Paul,
>
> I followed your guide to the letter, however I think it seems I
> missed something. When I test with telnet to port 25 this is the
> result:
>
>> telnet merlin 25
> Trying 10.10.3.6...
> Connected to merlin.ciss.local.
> Escape character is '^]'.
> 220 mdw1982.com ESMTP Sendmail 8.14.7/8.13.8; Wed, 8 Mar 2017 
16:53:31 -0500

> ehlo merlin
> 250-mdw1982.com Hello [10.10.3.102], pleased to meet you
> 250-ENHANCEDSTATUSCODES
> 250-PIPELINING
> 250-8BITMIME
> 250-SIZE
> 250-DSN
> 250-ETRN
> 250-DELIVERBY
> 250 HELP
>> auth login
> 504 5.3.3 AUTH mechanism login not available
>
> thoughts?

Many. :-)

Check your mail log for clues.

Ensure you have a valid SSL certificate and key. Sendmail is touchy
about permissions on the key file. Try googling for
confDONT_BLAME_SENDMAIL and GroupReadableKeyFile.

Make sure saslauthd is configured and running.

Compile your .mc (m4) file with the macros distributed with the
version of sendmail you're actually running. This line suggests you're
not:

mdw1982.com ESMTP Sendmail 8.14.7/8.13.8

That's a first stab at things to try.

I fixed the version mis-match by installing sendmail-cf package and 
recompiling sendmail.mc. saslauthd is running and conigured according to 
your specs. So, I'm not sure what's missing.

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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 06:21 PM, Alexander Dalloz wrote:

Am 08.03.2017 um 22:57 schrieb Mark Weaver:
> On 03/08/2017 11:00 AM, Paul Heinlein wrote:
>> On Wed, 8 Mar 2017, Mark Weaver wrote:

>> I wrote this article years ago:
>>
>> https://www.madboa.com/geek/sendmail-auth/

> Hi Paul,
>
> I followed your guide to the letter, however I think it seems I missed
> something. When I test with telnet to port 25 this is the result:
>
>> telnet merlin 25
> Trying 10.10.3.6...
> Connected to merlin.ciss.local.
> Escape character is '^]'.
> 220 mdw1982.com ESMTP Sendmail 8.14.7/8.13.8; Wed, 8 Mar 2017 16:53:31

That makes your mistake obvious: the .cf version is 8.13.8 - it does not
match the Sendmail version 8.14.7. So you did not build the sendmail.cf
from the modified sendmail.mc.

Make sure you have run "yum install sendmail-cf" so that "cd /etc/mail;
make" can do what it should do.

> -0500
> ehlo merlin
> 250-mdw1982.com Hello [10.10.3.102], pleased to meet you
> 250-ENHANCEDSTATUSCODES
> 250-PIPELINING
> 250-8BITMIME
> 250-SIZE
> 250-DSN
> 250-ETRN
> 250-DELIVERBY
> 250 HELP
>> auth login
> 504 5.3.3 AUTH mechanism login not available
>
> thoughts?

Alexander

And now?

> telnet merlin 25
Trying 10.10.3.6...
Connected to merlin.ciss.local.
Escape character is '^]'.
220 mdw1982.com ESMTP Sendmail 8.14.7/8.14.7; Wed, 8 Mar 2017 18:39:51 -0500
ehlo merlin
250-mdw1982.com Hello [10.10.3.102], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
> auth login
504 5.3.3 AUTH mechanism login not available
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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 11:00 AM, Paul Heinlein wrote:

On Wed, 8 Mar 2017, Mark Weaver wrote:

> Hello all,
>
> I've been googling my brains out since yesterday looking for up-to-date
> information on this matter, and have found information that is 
anywhere from
> 15 to 5 years old. I'd really like some information that much more 
up to date
> on the subject. Specifically configuring Sendmail SMTP 
authentication (_no

> smart host stuff_).

I wrote this article years ago:

https://www.madboa.com/geek/sendmail-auth/

The configuration outlined there is essentially unchanged today. I
have it running on a CentOS 7 machine with sendmail 8.14.

The only real change is the SOCKETDIR setting in
/etc/sysconfig/saslauthd, which is now /run/saslauthd (rather than
/var/run/saslauthd). And, of course, I use systemctl rather 
thachkconfig to control boot-time behavior.


The trickier bit for me was stopping and restarting the whole SMTP
toolchain, which includes spamassassin, clavav, and opendmarc. Below
my .sig, I've included the shell script I use for that.

--
Paul Heinlein <> heinl...@madboa.com <mailto:heinl...@madboa.com> <> 
http://www.madboa.com/

Hi Paul,

I followed your guide to the letter, however I think it seems I missed 
something. When I test with telnet to port 25 this is the result:


> telnet merlin 25
Trying 10.10.3.6...
Connected to merlin.ciss.local.
Escape character is '^]'.
220 mdw1982.com ESMTP Sendmail 8.14.7/8.13.8; Wed, 8 Mar 2017 16:53:31 -0500
ehlo merlin
250-mdw1982.com Hello [10.10.3.102], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
> auth login
504 5.3.3 AUTH mechanism login not available

thoughts?
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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 11:00 AM, Paul Heinlein wrote:

On Wed, 8 Mar 2017, Mark Weaver wrote:

> Hello all,
>
> I've been googling my brains out since yesterday looking for up-to-date
> information on this matter, and have found information that is 
anywhere from
> 15 to 5 years old. I'd really like some information that much more 
up to date
> on the subject. Specifically configuring Sendmail SMTP 
authentication (_no

> smart host stuff_).

I wrote this article years ago:

https://www.madboa.com/geek/sendmail-auth/

The configuration outlined there is essentially unchanged today. I
have it running on a CentOS 7 machine with sendmail 8.14.

The only real change is the SOCKETDIR setting in
/etc/sysconfig/saslauthd, which is now /run/saslauthd (rather than
/var/run/saslauthd). And, of course, I use systemctl rather than
chkconfig to control boot-time behavior.

The trickier bit for me was stopping and restarting the whole SMTP
toolchain, which includes spamassassin, clavav, and opendmarc. Below
my .sig, I've included the shell script I use for that.

--
Paul Heinlein <> heinl...@madboa.com <mailto:heinl...@madboa.com> <> 
http://www.madboa.com/



Hi Paul,

I much appreciate the info and will be having a look at it. I'll post 
back as to how its gone. Migrating is both enjoyable, exciting and a 
real BIG pain in the ass; all at the same time.

#!/bin/sh
#
# start/stop SMTP tool chain on mail.madboa.com
#
==

LANG=C
PATH="/usr/bin:/usr/sbin"

function mail_start {
sync && sync
for S in \
"clamd@clayton <mailto:clamd@clayton>" "clamav-milter" \
"opendmarc" \
"spamassassin" "spamass-milter" \
"sendmail"
do
echo -n "Starting $S :: "
systemctl start ${S}.service
if test $? -eq 0; then echo "ok"; else echo "failed"; fi
done
}

function mail_status {
for S in \
"clamd@clayton <mailto:clamd@clayton>" "clamav-milter" \
"opendmarc" \
"spamassassin" "spamass-milter" \
"sendmail"
do
echo -n "$S :: "
systemctl is-active ${S}.service
done
}

function mail_stop {
for S in \
"sendmail" \
"clamav-milter" "clamd@clayton <mailto:clamd@clayton>" \
"opendmarc" \
"spamass-milter" "spamassassin"
do
echo -n "Stopping $S :: "
systemctl stop ${S}.service
if test $? -eq 0; then echo "ok"; else echo "failed"; fi
done
}

case "$1" in
start)
mail_start
;;
stop)
mail_stop
;;
restart)
mail_stop
mail_start
;;
status)
mail_status
;;
*)
echo "usage: $(basename $0) {start|stop|restart|status}"
;;
esac

# vim: set filetype=sh:

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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 12:34 PM, David Both wrote:

Try this article, "Outbound authentication for Sendmail."

http://www.databook.bz/?page_id=3097

I wrote this after setting it up on my own CentOS server.

Will definitely be having a look at this. The information is much 
appreciated.


On 03/08/2017 10:41 AM, Mark Weaver wrote:
> Hello all,
>
> I've been googling my brains out since yesterday looking for
> up-to-date information on this matter, and have found information that
> is anywhere from 15 to 5 years old. I'd really like some information
> that much more up to date on the subject. Specifically configuring
> Sendmail SMTP authentication (_no smart host stuff_).
>
> I've got Sendmail 8.14 installed on a CentOS 7.3 server. Also installed:
>
> - Cyrus-sasl
> - Dovecot
> - Openssl
>
> Essentially everything I need except the working knowledge for the
> process. If someone knows where I might locate this information it
> would be greatly appreciated.
>
> thanks
>
> Mark
>
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--

*
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*
"I'd put my money on the sun and solar energy. What a
source of power! I hope we don't have to wait until oil
and coal run out before we tackle that."
- Thomas Edison, in conversation with Henry Ford and
Harvey Firestone, 1931
*


--


*
David P. Both, RHCE
Millennium Technology Consulting LLC
Raleigh, NC, USA
919-389-8678

db...@millennium-technology.com <mailto:db...@millennium-technology.com>

www.millennium-technology.com
www.databook.bz - Home of the DataBook for Linux
DataBook is a Registered Trademark of David Both
*
This communication may be unlawfully collected and stored by the National
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consent to the
retrieving or storing of this communication and any related metadata, as
well as
printing, copying, re-transmitting, disseminating, or otherwise using
it. If you
believe you have received this communication in error, please delete it
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Re: [CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

On 03/08/2017 11:40 AM, Robert Moskowitz wrote:



On 03/08/2017 10:41 AM, Mark Weaver wrote:
> Hello all,
>
> I've been googling my brains out since yesterday looking for
> up-to-date information on this matter, and have found information that
> is anywhere from 15 to 5 years old. I'd really like some information
> that much more up to date on the subject. Specifically configuring
> Sendmail SMTP authentication (_no smart host stuff_).
>
> I've got Sendmail 8.14 installed on a CentOS 7.3 server. Also installed:
>
> - Cyrus-sasl
> - Dovecot
> - Openssl
>
> Essentially everything I need except the working knowledge for the
> process. If someone knows where I might locate this information it
> would be greatly appreciated.

Do you need Cyrus-sasl anymore? Dovecot now comes with its own sasl.

I am working up a
C7-Postfix/MYsql/Postfixadmin/Dovecot/Roundcube/Amavis-clamav howto.

So, sorry, I switched from Sendmail to Postfix some 6+ years ago.

I am actually doing this on Centos7-amrv7hl, but it will work on all C7
arches. It will take me a couple more weeks to finish, but will share
with anyone that wants it now or more wants to help.
I thought about Postfix for a few minutes and decided because of the 
amount of other stuff I've got on my plate since I'm already familiar 
with Sendmail I decided to stay with it. But thank you.

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[CentOS] Up to date guide/information Sendmail SMTP Auth

[Mark Weaver]

Hello all,

I've been googling my brains out since yesterday looking for up-to-date 
information on this matter, and have found information that is anywhere 
from 15 to 5 years old. I'd really like some information that much more 
up to date on the subject. Specifically configuring Sendmail SMTP 
authentication (_no smart host stuff_).


I've got Sendmail 8.14 installed on a CentOS 7.3 server. Also installed:

- Cyrus-sasl
- Dovecot
- Openssl

Essentially everything I need except the working knowledge for the 
process. If someone knows where I might locate this information it would 
be greatly appreciated.


thanks

Mark

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Re: [CentOS] Using Apache 2.2 config files on Apache 2.4

[Mark Weaver]

On 03/02/2017 12:50 PM, Richard wrote:
>
>
> > Date: Thursday, March 02, 2017 12:43:18 -0500
> > From: Mark Weaver 
> <mailto:mwea...@compinfosystems.com%3E>
> >
> > On 03/02/2017 08:30 AM, Richard wrote:
> >>
> >>
> >> > Date: Thursday, March 02, 2017 08:22:25 -0500
> >> > From: Mark Weaver 
> <mailto:mwea...@compinfosystems.com%3E>
> >> <mailto:mwea...@compinfosystems.com%3E>
> <mailto:mwea...@compinfosystems.com%3E%3E>
> >> >
> >> > Hello List,
> >> >
> >> > I'm in the process of migrating LAMP servers. I've got a C5 LAMP
> >> > server in my rack that has been running faithfully without
> >> > complaint for the past 9 years. In some ways I really hate to
> >> > move out of it, but there are things to get done, things to
> >> > consider and reasons that make the migration necessary.
> >> >
> >> > I've got a C7 server loaded and the basic configuration partially
> >> > completed. All the packages I need to replace the old server are
> >> > in place. But I've reached a point where something has come up
> >> > and I don't know the answer to:
> >> >
> >> > Can I use the configuration files and methods I'm accustomed to
> >> > from apache 2,2 from my C5 server with Apache 2.4 on the new C7
> >> > server?
> >> >
> >> > I've been looking at the way thing are done with Apache 2.4 on C7
> >> > and in regards to SSL configuration I really don't care for it.
> >> > It seems convoluted and a bit unnecessarily complicated. /I'm
> >> > sure there's a good reason for it... I'm either not seeing it,
> >> > or I'm sub-consciously not interested in why it's this way./
> >> >
> >> > Thanks in advance,
> >> >
> >> > Mark
> >>
> >> You might want to look at:
> >>
> >> <https://httpd.apache.org/docs/2.4/upgrading.html>
> <https://httpd.apache.org/docs/2.4/upgrading.html%3E>
> >> <https://httpd.apache.org/docs/2.4/upgrading.html%3E>
> <https://httpd.apache.org/docs/2.4/upgrading.html%3E%3E>
> >>
> >> to see various configuration directive changes between the two
> >> releases, as well as other documented issues.
> >>
> > Ouch! That came out to a big old 404 error. Nothing there.
>
> It looks like something in your environment is adding the "%3E" (hex
> for the close angle bracket) to the end of the urls. Try:
>
> https://httpd.apache.org/docs/2.4/upgrading.html
>
Thank you... That's pretty much what  was wondering about. Now my head
hurts and I'm again wondering if I really want to migrate from my C5
server to C7. Ugh!
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Re: [CentOS] Using Apache 2.2 config files on Apache 2.4

[Mark Weaver]

On 03/02/2017 08:30 AM, Richard wrote:
>
>
> > Date: Thursday, March 02, 2017 08:22:25 -0500
> > From: Mark Weaver 
> <mailto:mwea...@compinfosystems.com%3E>
> >
> > Hello List,
> >
> > I'm in the process of migrating LAMP servers. I've got a C5 LAMP
> > server in my rack that has been running faithfully without
> > complaint for the past 9 years. In some ways I really hate to move
> > out of it, but there are things to get done, things to consider and
> > reasons that make the migration necessary.
> >
> > I've got a C7 server loaded and the basic configuration partially
> > completed. All the packages I need to replace the old server are in
> > place. But I've reached a point where something has come up and I
> > don't know the answer to:
> >
> > Can I use the configuration files and methods I'm accustomed to from
> > apache 2,2 from my C5 server with Apache 2.4 on the new C7 server?
> >
> > I've been looking at the way thing are done with Apache 2.4 on C7
> > and in regards to SSL configuration I really don't care for it. It
> > seems convoluted and a bit unnecessarily complicated. /I'm sure
> > there's a good reason for it... I'm either not seeing it, or I'm
> > sub-consciously not interested in why it's this way./
> >
> > Thanks in advance,
> >
> > Mark
>
> You might want to look at:
>
> <https://httpd.apache.org/docs/2.4/upgrading.html>
> <https://httpd.apache.org/docs/2.4/upgrading.html%3E>
>
> to see various configuration directive changes between the two
> releases, as well as other documented issues.
>
Ouch! That came out to a big old 404 error. Nothing there.
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[CentOS] Using Apache 2.2 config files on Apache 2.4

[Mark Weaver]

Hello List,

I'm in the process of migrating LAMP servers. I've got a C5 LAMP server
in my rack that has been running faithfully without complaint for the
past 9 years. In some ways I really hate to move out of it, but there
are things to get done, things to consider and reasons that make the
migration necessary.

I've got a C7 server loaded and the basic configuration partially
completed. All the packages I need to replace the old server are in
place. But I've reached a point where something has come up and I don't
know the answer to:

Can I use the configuration files and methods I'm accustomed to from
apache 2,2 from my C5 server with Apache 2.4 on the new C7 server?

I've been looking at the way thing are done with Apache 2.4 on C7 and in
regards to SSL configuration I really don't care for it. It seems
convoluted and a bit unnecessarily complicated. /I'm sure there's a good
reason for it... I'm either not seeing it, or I'm sub-consciously not
interested in why it's this way./

Thanks in advance,

Mark

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Re: [CentOS] OT: hardware, IBM 3650 M2 won't power on

[mark]

On 02/22/17 18:08, John R Pierce wrote:

On 2/22/2017 1:51 PM, m.r...@5-cent.us wrote:

That's what I was saying - I tried connecting to it from another server in
the rack, and it's supposed to show a web page, but I can't ping it, and
firefox times out trying to connect to the default IP of 192.168.70.125.


a default IP like that only works if the host connecting to it is on the same
IP subnet and physical LAN segment, unless your routers know to route
192.168.70.0/24 to that physical segment. set a laptop to 192.168.70.10 mask
255.255.255.0 and plug a ethernet cable in directly between the IPMI/BMC
management network port and the laptop, THEN try and connect to the web thingie.

Are you saying that if I plug a cable in an unused port on one server, use 
ifconfig to give it an IP of 192.168.70.10, and plug the other end into the 
problem server's management port, and try to ping it, it won't work?


mark

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Re: [CentOS] OT: hardware, IBM 3650 M2 won't power on

[Mark Woolfson (Notebook)]

From what I remember the 3650 M2 has got some diagnostic LED's on the rear 

panel.

Do these turn on and cycle?

Regards,
Mark Woolfson
MW Consultancy Ltd
Leeds
United Kingdom
Tel: +44 113 259 1204
Mob: +44 786 065 2778
-Original Message- 
From: John R Pierce

Sent: Wednesday, February 22, 2017 9:43 PM
To: centos@centos.org
Subject: Re: [CentOS] OT: hardware, IBM 3650 M2 won't power on

On 2/22/2017 1:32 PM, m.r...@5-cent.us wrote:

1. the server was working fine before we moved it out of the datacenter
  yesterday afternoon.


old hardware often doesn't survive moves, or even power/thermal cycles
(powering off long enough to get cold, then back on).


does that server have an IPMI/BMC or some other sort of lights off
management?   can you raise that, or was it never configured ?


--
john r pierce, recycling bits in santa cruz

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Re: [CentOS] OT: hardware, IBM 3650 M2 won't power on

[Mark Woolfson (Notebook)]

I assume that you have tried an alternate main power lead in a different 
socket.


If you have then it sounds as though the power supply is crowbarring on 
initialisation.


I would remove internal components until it powers on correctly.

Regards,
Mark Woolfson
MW Consultancy Ltd
Leeds
United Kingdom
Tel: +44 113 259 1204
Mob: +44 786 065 2778
-Original Message- 
From: m.r...@5-cent.us

Sent: Wednesday, February 22, 2017 9:32 PM
To: CentOS mailing list
Subject: Re: [CentOS] OT: hardware, IBM 3650 M2 won't power on

John R Pierce wrote:

On 2/22/2017 1:16 PM, m.r...@5-cent.us wrote:

a) Please don't top post.
b) 'T'ain't funny, McGee. They don't have the budget, and they need this
server*now*... it's one of their compute nodes, and at least one person
is dead in the water.


you can't afford a replacement for a 6-8 year old server (new in 2009),
yet someone who is presumably being paid is not able to work.   whats
that costing?


Let's see:
1. the server was working fine before we moved it out of the datacenter
yesterday afternoon.
2. You're suggesting that they can say "ok", and we run down to
Microcenter and
buy a new one today, and plug it in today, right?
3. This is a US federal government agency; we run machines until they die, 
or

we can justify replacing them. And then it takes a month or two
(if we're
lucky before all the approvals, and then it gets shipped. I would
imagine
it's like that in any large corporation, too.

mark, who's looking for suggestions to help, not be criticized for
not just buying another, as though, as a contractor, I had *any*
authority to do that (contractors DO NOT)

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Re: [CentOS] tor and selinux

[Mark]

On Sun, 2017-01-29 at 15:53 -0800, Gordon Messmer wrote:
> On 01/29/2017 11:59 AM, Mark wrote:
> > As I don't know what dac_override is I don't know if it's a good
> > idea
> > to give it to tor and the confidence seems quite low.
> 
> 
> dac_override indicates that you're running your process as root, and 
> it's trying to do something on the filesystem which is not
> explicitly 
> allowed by permissions.  DAC is the standard POSIX permission
> system, 
> and the process is trying to override it.  DAC allows access to the 
> toranon user and toranon group only, and the process is trying to 
> override that access by way of root access.

That's strange, because I started the tor process simply with
sudo systemctl start tor

The only changes I've really made was to add two lines of configuration
in torrc

Cheers
Mark
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[CentOS] tor and selinux

[Mark]

I'm experimenting with tor hidden services and got it to work nicely on
my Centos7, with tor from epel. That is, until I booted the machine.
Then SELinux kicked in and in the logs there's 

[warn] Directory /var/lib/tor/hidden_service/ cannot be read:
Permission denied

The permissions are
drwx--.  2 toranon toranon4096 Jan 28 23:39 hidden_service

And SELinux gives the following

SELinux is preventing /usr/bin/tor from using the dac_override
capability.

*  Plugin dac_override (91.4 confidence)
suggests   **

If you want to help identify if domain needs this access or you have a
file with the wrong permissions on your system
Then turn on full auditing to get path information about the offending
file and generate the error again.
Do

Turn on full auditing
# auditctl -w /etc/shadow -p w
Try to recreate AVC. Then execute
# ausearch -m avc -ts recent
If you see PATH record check ownership/permissions on file, and fix it,
otherwise report as a bugzilla.

*  Plugin catchall (9.59 confidence)
suggests   **

If you believe that tor should have the dac_override capability by
default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'tor' --raw | audit2allow -M my-tor
# semodule -i my-tor.pp


Additional Information:
Source Contextsystem_u:system_r:tor_t:s0
Target Contextsystem_u:system_r:tor_t:s0
Target ObjectsUnknown [ capability ]
Sourcetor
Source Path   /usr/bin/tor
Port  
Host  
Source RPM Packages   tor-0.2.8.12-1.el7.x86_64
Target RPM Packages   
Policy RPMselinux-policy-3.13.1-102.el7_3.13.noarch
Selinux Enabled   True
Policy Type   targeted
Enforcing ModeEnforcing
Host Name host
Platform  Linux host 3.10.0-514.6.1.el7.x86_64
  #1 SMP Wed Jan 18 13:06:36 UTC 2017
x86_64 x86_64
Alert Count   5
First Seen2017-01-29 22:42:46 EST
Last Seen 2017-01-29 22:42:51 EST
Local ID  51ceb58e-19cf-4f8f-ab1e-fe48265aaf1d

Raw Audit Messages
type=AVC msg=audit(1485747771.709:106): avc:  denied  { dac_override }
for  pid=2253 comm="tor"
capability=1  scontext=system_u:system_r:tor_t:s0
tcontext=system_u:system_r:tor_t:s0 tclass=capability


type=AVC msg=audit(1485747771.709:106): avc:  denied  { dac_read_search
} for  pid=2253 comm="tor"
capability=2  scontext=system_u:system_r:tor_t:s0
tcontext=system_u:system_r:tor_t:s0 tclass=capability


type=SYSCALL msg=audit(1485747771.709:106): arch=x86_64 syscall=open
success=no exit=EACCES a0=7fcd2c12fe90 a1=2 a2=0 a3=1 items=0
ppid=1 pid=2253 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=tor
exe=/usr/bin/tor subj=system_u:system_r:tor_t:s0 key=(null)

Hash: tor,tor_t,tor_t,capability,dac_override


As I don't know what dac_override is I don't know if it's a good idea
to give it to tor and the confidence seems quite low. 

Cheers
Mark

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Re: [CentOS] CentOS 7 install on one RAID 1 [not-so-SOLVED]

[mark]

On 01/24/17 19:00, Gordon Messmer wrote:

On 01/24/2017 02:14 PM, m.r...@5-cent.us wrote:

So, it installed happily.
Then wouldn't boot.


What did the storage configuration look like, exactly?  I'd guess that you put
one partition on each disk, combined those in a RAID1 MD array, made than an
LVM physical volume, and then created filesystems and swap on LVs.  But that's
a lot of guesses.  Did you use MBR partitions or GPT?  Are you booting under
BIOS or UEFI?  Where do your partitions start?  Did you create a standard MD
RAID volume and LVM or a partitionable RAID volume and partitions?


No. Brand new machine, pulled it out of the box and racked it. NOTHING on the 
internal SSDs. Made an md RAID 0 on the raw disks - /dev/sda /dev/sdb. No 
partitions, nothing. However, when I bring it up, fdisk shows an MBR with no 
partitions. I can, however, mount /dev/md127p3 as /mnt/sysimage, and all is there.


Did I need to make a single partition, on each drive, and then make the RAID 1 
out of *those*? I don't think I need to have /boot not on a RAID.


mark

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Re: [CentOS] I'm making the change to a new OS

[Mark LaPierre]

On 01/22/17 23:12, TE Dukes wrote:
> Decided to upgrade to 7.x.
> 
> It's been a good ride 6.x, but you're living in the past.
> 
> Everything is backed up, just waiting on my new 4TB HD to arrive for a fresh
> install.
> 
> See ya'll on the other side!!
> 

I just built a brand new Centos 7 machine for a friend this weekend.  I
did a net install.  All went well once I figured my way through the
installer.  It took me a while to find the button that I need to click
to turn on the network connection.

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Re: [CentOS] Missing Dependency python-yubico SOLVED

[Mark LaPierre]

On 01/10/17 23:40, Ian Mortimer wrote:
> On Tue, 2017-01-10 at 11:12 -0500, Mark LaPierre wrote:
> 
>> Hey all, I'm trying to install the fedora-packager group so that I can
>> build Fedora source packages into RPMs that I can install.  I'm
>> getting
>> this error:
>>
>> Error: Package: fedora-packager-0.6.0.1-1.el6.noarch (epel)
>>Requires: python-yubico
> 
> It's a known bug:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1411027#c0
> 
> The python-yubico package is now in epel-testing so you should be able
> to install it with:
> 
>yum --enablerepo=epel-testing  install fedora-packager
> 

Thanks Ian.

Worked slicker than a sidewalk in the freezing rain.


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Re: [CentOS] Missing Dependency python-yubico

[Mark LaPierre]

On 01/10/17 13:12, Tony Schreiner wrote:
> On Tue, Jan 10, 2017 at 11:12 AM, Mark LaPierre 
> wrote:
> 
>> Hey all, I'm trying to install the fedora-packager group so that I can
>> build Fedora source packages into RPMs that I can install.  I'm getting
>> this error:
>>
>> Error: Package: fedora-packager-0.6.0.1-1.el6.noarch (epel)
>>Requires: python-yubico
>> 
>> [root@peach ~]# yum install python-yubico
>> 
>> No package python-yubico available.
>>
>>
>> Do you suppose that maybe this is a typo where python-yubico was typed
>> instead of python-yubikey?  When I google for python-yubico Google
>> suggests python-yubikey instead.  But maybe not!  RPM Search turns up
>> python-yubico packages for Fedora 2[234] for x86_64, and CentOS 7.3 for
>> x86_64 and finds no hits for python-yubikey.  Maybe the fedora-packager
>> group only works on CentOS 7?
>>
>> I'm so confused ;-)
>>
>> Does anyone have a suggestion for how I can solve this issue?  Is there
>> another way to build source packages into RPM packages that I can install?
>>
>> CentOS release 6.8 (Final)
>>
>> Linux peach.patch 2.6.32-642.11.1.el6.x86_64 #1 SMP Fri Nov 18 19:25:05
>> UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>>
>> --
>> _
>>°v°
>>   /(_)\
>>^ ^  Mark LaPierre
>> Registered Linux user No #267004
>> https://linuxcounter.net/
>> 
>>
> 
> This is more properly an EPEL question. But I am having the same issue.
> 
> There seems to have been a small rash of package releases on EPEL 6 that
> have requirements only satisfied by RHEL 7 and friends.
> 
> I have to ask though. If you just want to rebuild Fedora RPMs for your
> Centos, you do not need fedora-packager, you just need rpmbuild (in
> rpm-build).
> 
> Tony Schreiner

Thanks Tony,  I'll see if I can figure out how to build RPM packages
from source packages without fedora-packager.  I hope there's not a crap
load of black art and fringe science involved.


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[CentOS] Missing Dependency python-yubico

[Mark LaPierre]

Hey all, I'm trying to install the fedora-packager group so that I can
build Fedora source packages into RPMs that I can install.  I'm getting
this error:

Error: Package: fedora-packager-0.6.0.1-1.el6.noarch (epel)
   Requires: python-yubico

[root@peach ~]# yum install python-yubico

No package python-yubico available.


Do you suppose that maybe this is a typo where python-yubico was typed
instead of python-yubikey?  When I google for python-yubico Google
suggests python-yubikey instead.  But maybe not!  RPM Search turns up
python-yubico packages for Fedora 2[234] for x86_64, and CentOS 7.3 for
x86_64 and finds no hits for python-yubikey.  Maybe the fedora-packager
group only works on CentOS 7?

I'm so confused ;-)

Does anyone have a suggestion for how I can solve this issue?  Is there
another way to build source packages into RPM packages that I can install?

CentOS release 6.8 (Final)

Linux peach.patch 2.6.32-642.11.1.el6.x86_64 #1 SMP Fri Nov 18 19:25:05
UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

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Re: [CentOS] OT - hardware - firmware update .iso to flash drive?

[mark]

On 12/23/16 17:27, Frank Cox wrote:

On Fri, 23 Dec 2016 17:18:46 -0500
m.r...@5-cent.us wrote:


Ah! Thanks. Still, any idea if it'll just boot (it's a Dell R720)?


Have you considered trying?

Well... this is at work, and it's a server, and it's a server serving two 
project directories that area actively in use by my folks, so it's something I 
have to schedule downtime for, so I don't want to try, it doesn't work, and 
then fight it to run.


mark
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Re: [CentOS] Noise Cancellation of Server Noise

[Mark Woolfson (Notebook)]

If the server decision makers had not gone for a server designed by 
accountants but a server designed by engineers then you would not have this 
problem.


Regards,
Mark Woolfson
MW Consultancy Ltd
Leeds
United Kingdom
Tel: +44 113 259 0759
Mob: +44 786 065 2778
-Original Message- 
From: geo.inbox.ignored

Sent: Sunday, December 25, 2016 7:49 AM
To: centos@centos.org
Subject: Re: [CentOS] Noise Cancellation of Server Noise



On 12/24/2016 10:25 PM, John R Pierce wrote:
<>


he said 'server rack'.thats a probably 6' tall cabinet filled with
servers, each of which has likely dozens of high speed fans.


}}

true. i was thinking 'old school' slide drawer racks.

because i doubt that 'it' or 'heads of authority' will allow changes to
server racks, H's best bet is to get 'fixed base' or 'roll around' type
acoustic wall panels. they are available with various types of sound
absorbing covering and of various heights and widths.

one or two can be placed between him and area of rack to block/absorb
sound.


--

The important thing is not to stop questioning.
- Albert Einstein


CentOS GNU/Linux 6.8
KDE 4.3.4

peace out.

tc,hago.

g
.

=+=
Tired of having your microsoft os hacked?
Change to Linux os, used by microsoft hackers.
=+=
If Bill Gates got a dime for every time Windows crashes...
...oh, wait. He does. THAT explains it!
=+=
in a world with out fences, who needs gates.
=+=
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Re: [CentOS] Semi-OT: thunderbird displaying inline

[mark]

Hi, Leonard,

On 12/18/16 12:47, Leonard den Ottolander wrote:

On Sun, 2016-12-18 at 11:56 -0500, mark wrote:

This is odd. Just recently, at home, even though I have it set to display
messages as plain text, I'm suddenly seeing pics attached to spam inline, as
though I had it set to display html.

Can't find anything to make it stop - anyone have a clue?


You are probably being confronted with content with content-disposition:
inline. Many muas display such content, exposing you to possible attacks
that target bugs in rendering libraries.

Not sure if there's a switch to disable the rendering of content with
disposition inline in TB but at least now you know what to search
for :) . Evolution does not have such an switch on C6 and C7, but recent
releases do: https://bugzilla.gnome.org/show_bug.cgi?id=769388

Thanks. Knowing the "magic words" always helps in a search. Thing is, t-bird 
never *used* to do this - it's only recently, I think


mark

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[CentOS] Semi-OT: thunderbird displaying inline

[mark]

Hi, folks,

   This is odd. Just recently, at home, even though I have it set to display 
messages as plain text, I'm suddenly seeing pics attached to spam inline, as 
though I had it set to display html.


   Can't find anything to make it stop - anyone have a clue?

    mark
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Re: [CentOS] Multi Stream Transport

[Mark Woolfson (Notebook)]

Hello,

Can you please help.

Which versions of Centos 6 and 7 support Multi Stream Transport (MST) on 
DisplayPort graphics.

Regards,
Mark Woolfson
MW Consultancy Ltd
Leeds
LS18 4LY
West Yorkshire
United Kingdom
Tel: +44 113 259 1204
Mob: +44 786 065 2778
Em: ju...@mwcltd.co.uk (Commercial)
Em: m...@mwcltd.co.uk (Technical)
Web: www.mwcltd.co.uk
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Re: [CentOS] Skype for Centos Desktop

[Mark LaPierre]

On 11/17/16 22:23, geo wrote:
> 
> 
> On 11/17/2016 07:47 PM, Peter wrote:
>> On 18/11/16 11:01, Liam O'Toole wrote:
>>> On 2016-11-17, Rodrigo Pichiñual Norin
>>>  wrote:
>>>> Hi all.
>>>>
>>>> I search info in the web about how to install skype on centos 6.5, but
>>>> just exists info about skype with architecture to 32 bit.
>>>>
>>>> someone can me explicain, how to install skype for 64 bit architecture
>>>> , it's possible?
>>>
>>> You can install and run 32-bit Skype on 64-bit CentOS 6. I recommended
>>> the Nux repo[1] for convenience. The various 32-bit dependencies will be
>>> installed by yum.
>>
>> The old 32 bit version in the Nux repo won't be working for much longer
>> as skype is changing it's protocols.  There is a new 64 bit alpha
>> version you can get directly from skype that works:
>>>
> 
>> https://repo.skype.com/https://repo.skype.com/
> 
> bad link should be;
> 
>   https://repo.skype.com/
> 
>> The instructions for yum works, and after that just:
>> yum install skypeforlinux
>>
>> Peter
> 
> 

Your solution only works on CentOS 7.  The OP is trying to install Skype
on CentOS 6.  The Skype package requires

[root@peach ~]# yum install skypeforlinux
Error: Package: skypeforlinux-1.12.0.4-1.x86_64 (skype-stable)
   Requires: libgnome-keyring

[root@peach RPM_REPO]# yum install libgnome-keyring-3.8.0-3.el7.x86_64.rpm
Error: libgnome-keyring conflicts with gnome-keyring-2.28.2-8.el6_3.x86_64
Error: libgnome-keyring conflicts with gnome-keyring-2.28.2-8.el6_3.i686

On CentOS 6 the package is named gnome-keyring.  On CentOS 7 the package
is named libgnome-keyring.  libgnome-keyring is not available on CentOS
6 so the package will not install.

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[CentOS] cent7 package librados2 appears to be 2 versions behind red hat. any reason for this?

[Christian, Mark]

Any chance we can get the following package built and added to the centos
mirrors?

$ rpm -qpi librados2-0.94.5-1.el7.x86_64.rpm
warning: librados2-0.94.5-1.el7.x86_64.rpm: Header V3 RSA/SHA256 signature:
NOKEY, key ID fd431d51
Name: librados2Relocations: (not relocatable)
Version : 0.94.5Vendor: Red Hat, Inc.
Release : 1.el7 Build Date: Wed 22 Jun 2016 12:33:13
PM PDT
Install Date: (not installed)   Build Host: x86-
017.build.eng.bos.redhat.com
Group   : System Environment/Libraries   Source RPM: ceph-common-0.94.5-
1.el7.src.rpm
Size: 5342816  License: LGPL-2.0
Signature   : RSA/8, Tue 27 Sep 2016 02:49:30 AM PDT, Key ID 199e2f91fd431d51
Packager: Red Hat, Inc. 
URL : http://ceph.com/
Summary : RADOS distributed object store client library
Description :
RADOS is a reliable, autonomic distributed object storage cluster
developed as part of the Ceph distributed storage system. This is a
shared library allowing applications to access the distributed object
store using a simple file-like interface.

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Re: [CentOS] How to start a script to complete configuration

[Mark Haney]

IIRC, there's a BootP module for Ansible.  I'm not at a place where I can
verify that though.


On Tue, Nov 8, 2016 at 11:26 AM, Bernard Fay  wrote:

> It would be hard to use ansible, cfengine or whatever while there no IP
> address on the new VM.
>
>
>
> On Tue, Nov 8, 2016 at 10:47 AM,  wrote:
>
> > On 2016-11-07 14:35, Bernard Fay wrote:
> > > Hi,
> > >
> > > We have a virtual environment based on XenServer. In this environment I
> > > defined a template for CentOS 7 servers.
> > >
> > > I would like to start a script a boot time to complete the
> configuration
> > of
> > > new VMs based on this template. How can I have a script started before
> > any
> > > login prompt to ask question to the user to complete the configuration
> > such
> > > as hostname, IP address, etc?
> >
> > Hi Bernard,
> >
> > My first impulse was "don't!", and that's probably the best
> > advise.  A popular model is that the "firstboot" package takes
> > care of this at the first user login, and *nix systems sort of
> > depend on this "logged in users do stuff" model.
> >
> > Even better, use ansible, cfengine, chef, or puppet to automate
> > the task of setting things up. This is the _best_ solution and
> > you will eventually come back to it.
> >
> > But, the darker, cynical part of my brain, the part that says
> > "what, you're cutting down on coffee?" part, said "sure you
> > can". Here's how it _could_ be done.
> >
> > DON'T DO THIS. TURN BACK NOW.
> >
> > Replace /sbin/init with a shell script that does what you want.
> > It will be the first userland process started, have the console
> > for I/O, and run as root. At completion, restore the original
> > /sbin/init and reboot. Leave no traces behind. Do not document
> > your awful hack, others will use your words against you.
> >
> > Best regards,
> > --
> > Chuck
> >
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Re: [CentOS] RHEL 7.3 released

[Mark Haney]

That's all well and good, but how about you actually include the minor
number AND the release date?  I.e. 7.3-1104 for CentOS 7.3 released today,
for example.   I'm all for the SIGs to keep track of their own upstreams,
but surely there's a better way to do this that doesn't annoy the heck out
of us Joe-Blows out here.  A lot of us don't have the time (or inclination)
to deal with oddball version discrepancies when there really doesn't need
to be.

I mean, there are dozens of Ubuntu distros and they all use the same basic
versioning schemes.  (Maybe not a completely fair example, but still.)
 Isn't the idea with CentOS to be a method of generating a larger testing
base and interest in RHEL and it's products?  If not, that's how I've
always seen it, incorrect or not.


On Fri, Nov 4, 2016 at 9:58 AM, Gianluca Cecchi 
wrote:

> On Fri, Nov 4, 2016 at 2:14 PM, Phelps, Matthew 
> wrote:
>
> >
> > >
> > > 1.  Is CentOS-7.3 done yet?  Answer:  NO!
> > >
> > > And it is NOT CentOS-7.3 .. it is CentOS-7 (1611) based on RHEL-7.3
> > > Sources.  The main tree will be labeled '7.3.1611' on the mirrors
> (along
> > > side 7.0.1406 and 7.1.1503, and 7.2.1511, all of which are already
> there)
> > >
> > >
> > Obligatory objection to this version numbering scheme:
> >
> > Deviating from RHEL in such a basic way is crazy, dumb, stupid, annoying,
> > wrong, etc, etc.
> >
> > There, done.
> >
> >
> Please, before a new flame, please read all what related with release
> numbering discussed on June 2014 thread of centos-devel mailing list:
> https://lists.centos.org/pipermail/centos-devel/2014-June/thread.html
>
> with subject
> CentOS 7 and release numbering
>
> started here by Karanbir:
> https://lists.centos.org/pipermail/centos-devel/2014-June/010444.html
>
> Thanks,
> Gianluca
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919-265-5006 office

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Re: [CentOS] RHEL 7.3 released

[Mark Haney]

I'm with Matthew Phelps on this.  If CentOS is built with the exact same
sources as RHEL, why not keep the numbering scheme the same?  That would
make life easier for people like me who build CentOS RPMs from
tarballs/SRPMS that run on RHEL and having to look up version numbers is
just idiotic.  I mean, that's a Microsoft pet peeve of mine.

This is also why I don't deploy CentOS as much as I would like.  I'd hoped
the merger/acquisition/partnership with RH would eliminate some of that,
instead it seems to be regressing. I don't get it.


On Fri, Nov 4, 2016 at 9:48 AM, Alice Wonder  wrote:

> On 11/04/2016 06:14 AM, Phelps, Matthew wrote:
>
>> On Fri, Nov 4, 2016 at 8:59 AM, Johnny Hughes  wrote:
>>
>> On 11/04/2016 04:38 AM, James Hogarth wrote:
>>>
>>>> As a heads up RHEL 7.3 is released:
>>>>
>>>
>>> 
>>>
>>> 1.  Is CentOS-7.3 done yet?  Answer:  NO!
>>>
>>> And it is NOT CentOS-7.3 .. it is CentOS-7 (1611) based on RHEL-7.3
>>> Sources.  The main tree will be labeled '7.3.1611' on the mirrors (along
>>> side 7.0.1406 and 7.1.1503, and 7.2.1511, all of which are already there)
>>>
>>>
>>> Obligatory objection to this version numbering scheme:
>>
>> Deviating from RHEL in such a basic way is crazy, dumb, stupid, annoying,
>> wrong, etc, etc.
>>
>> There, done.
>>
>
> Obligatory addition - the RPM %{release} tag often includes the RHEL minor
> release, e.g. 7_2 currently, so I will just call it 7.2 and likely same
> when 1611 tree is released.
>
>
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Re: [CentOS] NFS help

[mark]

On 10/24/16 03:52, Larry Martell wrote:

On Fri, Oct 21, 2016 at 11:42 AM,   wrote:

Larry Martell wrote:

On Fri, Oct 21, 2016 at 11:21 AM,   wrote:

Larry Martell wrote:

We have 1 system ruining Centos7 that is the NFS server. There are 50
external machines that FTP files to this server fairly continuously.

We have another system running Centos6 that mounts the partition the
files are FTP-ed to using NFS.



What filesystem?



cat /etc/fstab on the systems, and see what they are. If either is xfs,
and assuming that the systems are on UPSes, then the fstab which controls
drive mounting on a system should have, instead of "defaults",
nobarrier,inode64.


The server is xfs (the client is nfs). The server does have inode64
specified, but not nobarrier.


Note that the inode64 is relevant if the filesystem is > 2TB.


The file system is 51TB.


The reason I say this is that we we started rolling out CentOS 7, we tried
to put one of our user's home directory on one, and it was a disaster.
100% repeatedly, untarring a 100M tarfile onto an nfs-mounted drive took
seven minutes, where before, it had taken 30 seconds. Timed. It took us
months to discover that NFS 4 tries to make transactions atomic, which is
fine if you're worrying about losing power or connectivity. If you're on a
UPS, and hardwired, adding the nobarrier immediately brought it down to 40
seconds or so.


We are not seeing a performance issue - do you think nobarrier would
help with our lock up issue? I wanted to try it but my client did not
want me to make any changes until we got the bad disk replaced.
Unfortunately that will not happen until Wednesday.


Absolutely add nobarrier, and see what happens.

mark

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Re: [CentOS] xdgurl

[Mark LaPierre]

On 10/20/16 07:06, James Pearson wrote:
> Mark LaPierre wrote:
>> Has anyone figured out how to make Firefox 45.4.0 on CentOS 6 use xdgurl
>> to handle xdg:// URLs?
>>
>> Google is full of suggestions that don't work.  When I select a an
>> xdg:// link I don't get a dialog asking me what to do like Google says I
>> will.  Instead I get a message that says Firefox doesn't have a clue how
>> to handle this URL.  Do you want to try again?
>>
>> I tried about:config
>>
>> I added:
>>
>> network.protocol-handler.external.xdg  user set  string /usr/bin/zdgurl
> 
> I don't think those types of prefs are used any more ?
> 
> A lot of the information out there on adding protocol handlers to
> Firefox on Linux is out of date or wrong ...
> 
> A couple of ways that work for me (on CentOS 6, using Gnome) with
> Firefox 45:
> 
> 1. Create the file $HOME/.local/share/applications/xdg containing
> 
> [Desktop Entry]
> Name=xdg
> Type=Application
> Exec=/usr/bin/xdgurl %U
> Terminal=false
> MimeType=x-scheme-handler/xdg;
> NoDisplay=true
> 
> Then run:
> 
> desktop-file-install $HOME/.local/share/applications/xdgdesktop \
>  --rebuild-mime-info-cache --dir=$HOME/.local/share/applications
> 
> Start firefox and browse to a xdg:// URL - it still prompts for the
> application use the first time - but after that, it should work OK
> 
> Note: I haven't actually done this for an 'xdg' protocol handler - but
> it works for launching other apps using other custom protocol handlers
> 
> 2. Set up a protocol handler in a central autoconfig 'mozilla.cfg' file
> using Javascript - this is the method I use to automatically add a
> protocol handler for all users (and doesn't require any user
> intervention) - let me if you want more details about this method
> 
> James Pearson

Hey James,

Thanks for the detailed response.  Just a minor error.  The file name
must have a .desktop extension like this:

1. Create the file $HOME/.local/share/applications/xdg.desktop containing:

[Desktop Entry]
Name=xdg
Type=Application
Exec=/usr/bin/xdgurl %U
Terminal=false
MimeType=x-scheme-handler/xdg;
NoDisplay=true

Then run:

desktop-file-install $HOME/.local/share/applications/xdg.desktop \
--rebuild-mime-info-cache --dir=$HOME/.local/share/applications

I restarted Firefox then I went to visit:

https://www.gnome-look.org/p/1157815/

I clicked on the [Install] button.

I got the dialog box where I chose the handler /usr/bin/xdgurl

I did not get the install dialog.

In a shell:

[mlapier@peach ~]$ which xdgurl
/usr/bin/xdgurl

[mlapier@peach ~]$ xdgurl
"xdg://install?url=https%3A%2F%2Fdl.opendesktop.org%2Fapi%2Ffiles%2Fdownload%2Fid%2F1476439340%2Frmfixed.bdf&type=fonts&filename=rmfixed.bdf"
Traceback (most recent call last):
  File "/usr/bin/xdgurl", line 21, in 
if sys.version_info.major >= 3:
AttributeError: 'tuple' object has no attribute 'major'
[mlapier@peach ~]$

No joy,

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[CentOS] xdgurl

[Mark LaPierre]

Has anyone figured out how to make Firefox 45.4.0 on CentOS 6 use xdgurl
to handle xdg:// URLs?

Google is full of suggestions that don't work.  When I select a an
xdg:// link I don't get a dialog asking me what to do like Google says I
will.  Instead I get a message that says Firefox doesn't have a clue how
to handle this URL.  Do you want to try again?

I tried about:config

I added:

network.protocol-handler.external.xdg  user set  string /usr/bin/zdgurl

Still no joy.

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Re: [CentOS] Bacula Restore

[mark]

Hi, there,

On 10/19/16 07:20, Alessandro Baggi wrote:

Hi list,
another question about bacula, but this time about restoring backups.

I've a server that I must backup every day. My plan is:

from mon to sat incrimental backup
and on sunday full backup.

When I will perform a restore I  must restore from last valid full backup and
then all valid incremental backup from last backup to specific date.


One issue - how long does a full backup take? We've moved our full b/u from 
the default to Fri? Sat? Not at work at the moment, but that way if it takes 
six or twelve hours, no big deal.


    mark
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Re: [CentOS] Alternative GUI

[Mark LaPierre]

On 09/28/16 19:25, Mark LaPierre wrote:
> Hey All,
> 
> I'm considering moving from CentOS 6 to CentOS 7.  I'm not interested in
> dealing with Gnome 3.  I've heard good things about Mate, a fork of
> Gnome 2.  it appears that Mate is available in the EPEL repository
> associated with CentOS 7.
> 
> Have any of you tried Mate on CentOS 7?  In your experienced opinion
> what would I be giving up by abandoning Gnome 3 and installing Mate instead?
> 

You know, after I posted the original question I thought, Oh No! I've
just started a flame war, but I'm glad to see that was not the case.  It
appears that everyone who responded is in general agreement on the
subject.  Greg Bailey even came up with a helpful hint on improving the
font rendering on the desktop.

Thank you all for your input.

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Re: [CentOS] No Sound On Centos 7 VM

[Mark LaPierre]

On 09/29/16 19:04, Darr Darr wrote:
> 
> 
> Try running
> amixer set Master 100%
> (which I found on linuxquestions.org at the 4th result down using
> google.com/search?q=centos+7+sound+not+working+in+vm )
> Sent from my Samsung Galaxy S5

Hey Darr Darr,

Thank you for the response.  Unfortunately there was no solution to my
problem there.

I have a Windows 7 guest with working sound.  The CentOS 7 guest not so
much.  The host machine is CentOS 6.  I'm using KVM.  They were using
vmware.

I ran:

[mlapier@peach ~]$ amixer set Master 100%
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 65536 [100%] [on]
  Front Right: Playback 65536 [100%] [on]
[mlapier@peach ~]$

I set the KVM powered CentOS 7 guest to use the AC97 audio.  Reboot,
restart, no joy.

The article seemed to suggest that they were trying to connect with a
remote desktop.  I'm not doing that either.  I'm looking to get sound on
the host machine from the guest machine.

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[CentOS] Alternative GUI

[Mark LaPierre]

Hey All,

I'm considering moving from CentOS 6 to CentOS 7.  I'm not interested in
dealing with Gnome 3.  I've heard good things about Mate, a fork of
Gnome 2.  it appears that Mate is available in the EPEL repository
associated with CentOS 7.

Have any of you tried Mate on CentOS 7?  In your experienced opinion
what would I be giving up by abandoning Gnome 3 and installing Mate instead?

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[CentOS] No Sound On Centos 7 VM

[Mark LaPierre]

Hey All,

I've installed CentOS 7 in a KVM powered VM on my CentOS 6 desktop.  I'm
not getting any sound.

Google seams to have no clue what to do.  How about you?


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Re: [CentOS] HP CP2025

[Mark LaPierre]

On 09/26/16 19:51, Rob Kampen wrote:
> On 27/09/16 10:45, Kay Schenk wrote:
>>
>>
>> On 09/25/2016 06:09 PM, Mark LaPierre wrote:
>>>
>>> [mlapier@peach ~]$ rpm -qa | grep hplip
>>> hplip-common-3.14.6-3.el6.x86_64
>>> hplip-libs-3.14.6-3.el6.x86_64
>>> [mlapier@peach ~]$ rpm -qa | grep cups
>>> cups-1.4.2-74.el6.x86_64
>>> cups-pk-helper-0.0.4-13.el6.x86_64
>>> gutenprint-cups-5.2.5-2.el6.x86_64
>>> cups-libs-1.4.2-74.el6.x86_64
>>> cups-libs-1.4.2-74.el6.i686
>>> [mlapier@peach ~]$
>>>
>>> CentOS release 6.8 (Final)
>>>
>>> I've been able to print to this printer with no issues, until this
>>> evening.  When I tried to send a print job the job just sat in the print
>>> queue.  I killed the job and deleted the printer, then re-installed the
>>> printer using the Printer configuration tool found under
>>> System/Administration/Printing.
>>
>> "until this evening"...so that's interesting.
>>
>> I'm also on CentOS 6.8 but 32-bit using the same hplip version.
>> Normally I do printer setup with hp-setup, then use the web interface
>> to cups to add it in to that environment.
>>
>> Also, add hp-systray to your startup apps if you haven't already.
>>
>>
>>>
>>> I've tried all manner of settings, both on the Libre Office document and
>>> in the Printer configuration tool.  Now I can print to the printer but I
>>> cannot get the printer to print in Landscape orientation.  Only portrait
>>> orientation comes out no matter what settings I choose.
>>
>> Does portrait work with ANY other type of document -- pdf, for example?
> I have a brother printer and from libre office it ONLY prints protrait,
> no matter what I have tried. To get any landscape output I have to
> create a pdf of the document and then print that.
> No idea what the issue is, my suspicion is libre office has a glitch.
>>
>>>
>>> I've done a bit of Google work but I find nothing that appears
>>> applicable to my specific issue of not getting landscape prints no
>>> matter what setting I choose.
>>
>>>
>>> The HPLIP web site says the latest version of hplip for my machine, RHEL
>>> 6 because they apparently have not heard of CentOS, is
>>> hplip-3.16.9_rhel-6.0.x86_64.  CentOS does not have this version
>>> available in the repo.
>>>
>>> What's a guy to do?  Windows should be this hard to work with, but not
>>> Linux.
>>>
>>

Very interesting.  I have a 32 bit system on the network that can print
the same document from Libre Office in landscape with no problem what so
ever.  My 64 bit machine does not want to hear it.

I'll try printing to pdf then print that.  I'll let you know what happens.


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[CentOS] HP CP2025

[Mark LaPierre]

[mlapier@peach ~]$ rpm -qa | grep hplip
hplip-common-3.14.6-3.el6.x86_64
hplip-libs-3.14.6-3.el6.x86_64
[mlapier@peach ~]$ rpm -qa | grep cups
cups-1.4.2-74.el6.x86_64
cups-pk-helper-0.0.4-13.el6.x86_64
gutenprint-cups-5.2.5-2.el6.x86_64
cups-libs-1.4.2-74.el6.x86_64
cups-libs-1.4.2-74.el6.i686
[mlapier@peach ~]$

CentOS release 6.8 (Final)

I've been able to print to this printer with no issues, until this
evening.  When I tried to send a print job the job just sat in the print
queue.  I killed the job and deleted the printer, then re-installed the
printer using the Printer configuration tool found under
System/Administration/Printing.

I've tried all manner of settings, both on the Libre Office document and
in the Printer configuration tool.  Now I can print to the printer but I
cannot get the printer to print in Landscape orientation.  Only portrait
orientation comes out no matter what settings I choose.

I've done a bit of Google work but I find nothing that appears
applicable to my specific issue of not getting landscape prints no
matter what setting I choose.

The HPLIP web site says the latest version of hplip for my machine, RHEL
6 because they apparently have not heard of CentOS, is
hplip-3.16.9_rhel-6.0.x86_64.  CentOS does not have this version
available in the repo.

What's a guy to do?  Windows should be this hard to work with, but not
Linux.

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Re: [CentOS] script to make webpage snapshot

[Mark Parsons]

First time on this list, sorry if I mess up on something.

I use http://wkhtmltopdf.org/ there is a to image version as well. I
haven't had any trouble with it. I've mostly used on Windows but there are
Linux versions.

On Aug 11, 2016 7:09 PM, "Kahlil Hodgson" 
wrote:

> I have some some angularjs sites that I test with protractor and a
> chrome webdriver. I read in the docs at some point that I could take
> and save screenshots if I wanted. You may be able to write a simple
> nodejs script to kick of the webdriver and take the screenhsot.  Or
> someone may have already writen one :-)
>
> https://www.seleniumeasy.com/selenium-tutorials/take-
> screenshot-with-selenium-webdriver
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Re: [CentOS] ?barracuda? listing in logwatch session 123 of user root.

[Mark Milhollan]

On Tue, 19 Jul 2016, Jon LaBadie wrote:

>My nightly logwatch report had a never before seen
>section last night, "barracuda spam firewall".
>
>I have not problem with the emails it noted as
>being rejected.  But I've always thought of "barracuda"
>as a commercial product.
>
>I have neither configured nor enabled any barracuda
>software and "yum list '*barrac*'" comes up empty.
>
>What is this?

AIUI they provide a public blacklist, which is used by SpamAssassin and 
probably others.  
<http://multirbl.valli.org/detail/bb.barracudacentral.org.html>


/mark
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[CentOS] Use USB2.0 Camera with KVM based VM

[Mark LaPierre]

Hey All,

I've been googleing this issue for hours but I can't find a workable
solution.  I found a reply to a bug posting that said the USB hub on the
VM defaults to USB 1.1.  I see this is true when I lsusb on the CentOS 7
guest.

The reply to the bug post went on to say that the problem is that the
USB 2.0 camera will not work with the USB 1.1 default hub and that I
should change the hub from USB 1.1 to USB 2.0.

I see no way to do that.

Can anyone shed some light on this?  Is there a way to change the USB
hub from USB 1.1 to USB 2.0 inside the VM Manager?

Is there a better way to get my USB 2.0 web camera to appear in my
CentOS 7 guest?

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Re: [CentOS] Install C7 VM on C6 Host

[Mark LaPierre]

I had no real reason to doubt.  I was just being lazy.  I figured that,
if anyone knew the correct answer, it you be the people on this list.

Thank you for your gracious forbearance.

On 06/21/16 20:01, Boris Epstein wrote:
> I would think the same as Gordon that as long as your 64-bit VM
> virtualization is running properly there should be no problem running C7 on
> a VM running under C6. May I ask what the initial doubt was based upon? Has
> anybody out there had such an issue before?
> 
> Cheers,
> 
> Boris.
> 
> 
> On Tue, Jun 21, 2016 at 7:30 PM, Gordon Messmer 
> wrote:
> 
>> On 06/21/2016 04:06 PM, Mark LaPierre wrote:
>>
>>> Before I waste myself a bunch of time trying the impossible I figured I
>>> would ask if I can install an instance of C7 in a KVM based VM on a C6
>>> host.
>>>
>>
>>
>> Yes.
>>
>>
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[CentOS] Install C7 VM on C6 Host

[Mark LaPierre]

Hey all,

Before I waste myself a bunch of time trying the impossible I figured I
would ask if I can install an instance of C7 in a KVM based VM on a C6 host.

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Re: [CentOS] Question on 7.2 and weird characters

[Mark Milhollan]

On Mon, 23 May 2016, Jerry Geis wrote:

>When I run this command:
>rm /tmp/jerry.txt
>rm: remove regular file â/tmp/jerry.txtâ?
>
>I get the a with the carrot on top...
>
>How do I get back to the normal characters ?

Your locale specifies an encoding that your terminal doesn't understand, 
i.e., they are out of sync, e.g., LC_CTYPE includes ".UTF-8" but your 
terminal expects Latin1 or vice-versa.  Change your terminal to match 
LC_CTYPE or change LC_CTYPE to match your terminal (perhaps even unset 
it).


/mark
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Re: [CentOS] CentOS 7, container question

[Mark Haney]

I've been wracking my brain, but for the life of me can't recall the exact
program name, but back when I managed a HPCC, there was a tool that would
let you restrict a running process to X number of CPUs/Cores natively.  I
keep thinking it was MPC, but nothing googles on that.  Regardless, that
might be a better way of running Sybase, as a container may not be beefy
enough to  handle the load Sybase is likely to generate.


On Mon, May 23, 2016 at 10:51 AM,  wrote:

> Hi, folks,
>
>We would like to run a container on a server, the reason being the COST
> of a Sybase license (it's by core), and what we can afford is a 4-core
> license. Now, the server's a nice Dell w/ 32 cores, so, ideally, what
> we want to do is set up containers, then, in one container, *only* have
> it see 4 cores, while the rest of the server, including (possibly)
> other containers, can see the other 28. The first try seems to have
> disabled *all* the cores other than those four.
>
>Is it possible to do what we want, and if so, some pointers would be
> most appreciated.
>
>  mark
>
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Re: [CentOS] OT: hardware: MegaCli and initializing a RAID

[Mark Milhollan]

On Fri, 6 May 2016, Valeri Galtsev wrote:

>I agree with what John said about their command line interface MegaCli.

StorCli is the replacement, which has differently awful syntax.


/mark
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