Re: [CentOS] Fix for CVE-2020-1971 on CentOS 6.10

2020-12-16 Thread Ron Yorston
Simon Matter wrote:
>Since security updates for CentOS 6 are not provided anymore, I've decided
>to try my best to address CVE-2020-1971 and I welcome others to do the
>same for this and other new issues which may come up.

Thanks to Simon for doing this.

I made my own patch which ended up the same as Simon's apart from
whitespace and formatting.  It's been deployed on a CentOS 6 system that
can't be upgraded yet due to... reasons.  Seems to work in the limited
testing I've done.

Cheers,

Ron
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Re: [CentOS] virt-manager with dhcpd running on same machine

2015-08-28 Thread Ron Yorston
Jerry Geis wrote:
>If I have dhcpd running on my machine,
>and I wish to run virt-manager on the same machine
>How do I do that - its telling me an error for starting the network
>and the error is that DHCPD is already running - port in use.

It seems there's a problem with dnsmasq, which is used by virt-manager:

   https://bugs.centos.org/view.php?id=7884
   https://bugzilla.redhat.com/show_bug.cgi?id=1154953

The workaround mentioned in the bug reports is to downgrade dnsmasq
to the version from CentOS 6.5.

Ron
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Re: [CentOS] [CentOS-announce] Release for CentOS Linux 7 (1503 ) on x86_64

2015-04-01 Thread Ron Yorston
Johnny Hughes wrote:
>This was discussed on the CentOS-Devel mailing list and approved by the
>CentOS Board.

Yes, it was discussed at great length on centos-devel.  The core
developers proposed a date-based versioning system which met with
much opposition.  I certainly wasn't convinced by their arguments.

>It is what we are using in the future.  I suggest you become familiar
>with it.

You can call it what you like.  I'll still call it CentOS 7.1.

Ron
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Re: [CentOS] Gnome-3 - can't drag menu items out

2015-02-10 Thread Ron Yorston
Les Mikesell wrote:
>I've mostly been using MATE from epel when I use GUI access on CentOS7
>because it works with x2go, but just noticed on a system with Gnome3
>that I can't drag items out of the menus to the desktop or top bar for
>easier access.  Is there some way to make the desktop space useful for
>more than pretty wallpaper?

I'm not at my usual machines so I don't have access to CentOS 7 or
GNOME 3 at the moment.  And even if did I tend not to bother with
stuff on the desktop so I couldn't help with that anyway.

However, if it's menu items in the top bar you want I do have an app
for that, or rather a GNOME Shell extension.  Visit

   https://extensions.gnome.org

and search for 'Frippery Panel Favorites'.  You might need to 'yum
install gnome-shell-browser-plugin' first to allow extensions to be
installed from the website.

Frippery Panel Favorites displays icons in the top bar for applications
that have been configured as favourites in the overview screen.
It works in standard GNOME Shell and in classic mode.  I find it
much less distracting than having to switch to the overview to access
frequently-used applications.

Ron
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[CentOS] CentOS 6.6 and webcams

2015-01-29 Thread Ron Yorston
The issue of webcams not working with recent kernels on CentOS 6.6
has come up a number of times on the list.  I'm happy to report that
the latest kernel (2.6.32-504.8.1) appears to have fixed the problem.

The relevant changelog entry is:

   - [usb] ehci: Fix a regression in the ISO scheduler (Gustavo Duarte) 
[1162072 1145805]

The related CentOS bug report is here:

   http://bugs.centos.org/view.php?id=7815

Ron
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Re: [CentOS] CentOS 6.6: Webcam problem

2014-12-12 Thread Ron Yorston
Phil Wyett  wrote:
>Could you be more specific about your issue? Does the webcam get
>detected? if you use 'cheese' do you get any errors in say 'dmesg'?
>
>There has been a webcam issue of late that seems to trace back to a
>regression with the latest kernels. This was fixed in the centos plus
>kernel, but there is a wait to see what Red Hat will do. This is a
>kernel issue and all kernel bugs are locked from public view bar Red Hat
>people and the reporter.
>
>Issue seen and fixed in plus kernel:
>
>http://bugs.centos.org/view.php?id=7815

I know all that:  it was covered in the thread last month, where I
promised to report any progress on the Red Hat bug.

I didn't expect the Spanish Inquisition.

Ron
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[CentOS] CentOS 6.6: Webcam problem

2014-12-12 Thread Ron Yorston
Last month we discussed the problems with webcams in CentOS 6 and I
raised Bugzilla #1158988 with Red Hat.  This bug has now been declared
a duplicate of 1145805.  Unfortunately I'm unable to access that report
so although I know Red Hat are looking into the matter I don't know
what they're doing.

Ron
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Re: [CentOS] CentOS 6.6: Webcam problem

2014-11-03 Thread Ron Yorston
Akemi Yagi wrote:
>Perhaps, Ron can update the RH bugzilla with this info so that the
>upstream kernel gets fixed.

I've added a reference to the CentOS bug in RH bugzilla.

Ron
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Re: [CentOS] CentOS 6.6: Webcam problem

2014-11-02 Thread Ron Yorston
bax bax wrote:
>Hi I have a lenovo w530 laptop with integrated camera.  with the new
>kernel 2.6.32-504.el6.x86_64 webcam dont' works on /var/log/messages
>i can see:  localhost kernel: uvcvideo: Failed to submit URB 0 (-28).
>If I boot with old kernels webcam is ok can I fix it? can someone file
>a bug report? thanks

I'm seeing the same problem on three different machines.  The last kernel
that works is 2.6.32-431.23.3.  I've raised a bug report with Red Hat:

   https://bugzilla.redhat.com/show_bug.cgi?id=1158988

Ron
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Re: [CentOS] firefox: annoyance

2014-09-25 Thread Ron Yorston
m.r...@5-cent.us wrote:
>palemoon looks nice

My concern with Pale Moon is that it's based on the Firefox 24 extended
support release, which is no longer supported.  Don't know how that'll
play out.

In the meantime I've added exclude=firefox to my yum configuration and
am sticking with Firefox 24.  On Fedora I've switched to Midori.

I don't want 'tabs on top' and over the past several releases the Firefox
developers have been making it more and more difficult to configure that.
It used to be the default but now it requires a third-party extension
and jumping through several hoops.

Ron
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Re: [CentOS] How to setup VNC for GDM access on 6.3

2013-01-23 Thread Ron Yorston
Bruce Ferrell wrote:
>I'm looking for pointer for setting up VNC so that access to the system
>is via gdm/kdm.  Yes, I know about vino, and /etc/sysconfig/vncservers
>but what I'm looking for is a sertup that allows me to see the *dm login
>screen instead of being dropped direct into a desktop.

I set this kind of thing up many years ago on CentOS 4.  I was curious to
see if it still worked on CentOS 6 and found that this works for me:

   Edit /etc/gdm/custom.conf to add 'Enable=true' to the '[xdmcp]'
   section.  Restart gdm.  (I just did 'telinit 3; telinit 5'.)

   Run this command to start a server:

   /usr/bin/Xvnc :1 -query localhost -geometry 1100x850 -securitytypes none &

Given a properly configured (or disabled) firewall you should then be able
to run 'vncviewer hostname:1' to get a login screen.

Once you've logged in the session will persist even if you close vncviewer,
so you can reconnect later.  This is, of course, hopelessly insecure.

Starting Xvnc from xinetd is also possible, but then sessions aren't
persistent.

For some reason that I've never been able to fathom if you log out from
a persistent session there's an annoying delay until the login screen
reappears.

Ron
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Re: [CentOS] Extracting the window (titlebar) name from a bash script?

2012-07-21 Thread Ron Yorston
Fernando Cassia wrote:
>Surely there' s a way to obtain the "window name" -which appears on
>the Window Manager' s Titlebar- for running processes, right?.
>Well, I can't find it...

wmctrl with the '-l -p' flags provides a list of windows with names and
PIDs.  It's in EPEL for CentOS 6, though not 5.  It probably wouldn't be
too hard to build for CentOS 5 if you needed it there.

Ron
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Re: [CentOS] ntp update version

2009-12-10 Thread Ron Yorston
Akemi Yagi wrote:
>You may want to check upon this CentOS bug report:
>
>http://bugs.centos.org/view.php?id=4060

Which has been closed as 'no change required'.  Some change is required.

As things stand my systems are on version 4.2.0.a.20040617-8.el4_8.2,
the CentOS name for the August update.  There's an October update
called 4.2.0.a.20040617-8.el4_8.centos.2 which has the same changelog
as the August one, and which wasn't installed because it has a lower
version number.

Now there's a new update with version 4.2.0.a.20040617-8.el4_8.1 which
has important fixes in it, but which is also not being installed because
it has a lower number than the incorrectly versioned August update.

The CentoS version on the August update is wrong (it should have been
4.2.0.a.20040617-8.el4_7.2) and it's preventing the December update from
being installed.

Ron
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[CentOS] ntp update version

2009-12-10 Thread Ron Yorston
I noticed that although I'd fetched the latest update to ntp from the
mirror it wasn't being installed.

It seems that the version numbers have got out of step.  According to
the changelog the update that was released in August should have had
the version number 4.2.0.a.20040617-8.el4_7.2, whereas in CentOS it's
actually 4.2.0.a.20040617-8.el4_8.2.

The changelog says the latest update is 4.2.0.a.20040617-8.el4_8.1,
which is what CentOS has, but that's a lower version than the August
update.

Ron
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[CentOS] EL4 EPEL mirrors missing headers

2009-11-09 Thread Ron Yorston
The EPEL mirrors for EL4 no longer have a headers directory, just
repodata.  This means that up2date has stopped working.

Is this a problem with EPEL or with my system?

Ron
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