Discuss June 2018

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93 participants
84 discussions

NetworkManager updating resolv.cfg
by Maheshwari, Shagun 21 Jun '18

21 Jun '18

Hi, I am facing issue stoping NetworkManager to update resolv.cfg, I am using below configuration for eth0 interface: TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy NAME=eth0 UUID=93b90a46-dab5-4a67-8fd0-fefe8874a8b9 DEVICE=eth0 ONBOOT=no PEERDNS=no PEERROUTES=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes DNS1=<ipv4 address> DNS2=<ipv6 address> Also, added dns=none in NetworkManager.conf file. Whenever I am restarting NetworkManager, resolv.cfg gets updated and only ipv4 nameserver is displaced, whether I am expecting both the ips (ipv6 and ipv4 address to be present in resolv.cfg file. Any suggestion here, how to achieve that?? Regards, Shagun

3 2

Volunteers wanted: CentOS booth at DevConf.us
by Rich Bowen 20 Jun '18

20 Jun '18

DevConf.us will be held in Boston, August 17th - 19th. CentOS will have a booth/table in the expo area, and we need your help staffing that table. If you are able to volunteer for an hour (or more) to staff the table, please sign up here: https://docs.google.com/spreadsheets/d/1KDVgTO4M4UFdtONRHAjKTFRnwUMk4P2tTkZ… Volunteers will receive their choice of a CentOS polo shirt, or a CentOS long sleeve button-up shirt. Thanks. -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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CentOS-6.9 Bind-9.8.2 error messages
by James B. Byrne 20 Jun '18

20 Jun '18

I am encountering messages similar to this in the system logfile: Jun 20 13:38:18 inet03 named[3720]: malformed transaction: dynamic/efa1f375d76194fa51a3556a97e641e61685f914d446979da50a551a4333ffd7.mkeys.jnl last serial 103538 != transaction first serial 103361 I have no idea what this means, what caused it, nor how to fix it. Any suggestions relevant to any of the above are most welcome. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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gnome-shell killing KDE
by Michael Hennebry 19 Jun '18

19 Jun '18

I'm running KDE on C7, so why would I have a gnome-shell process spending rather a lot of its time in D mode? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards

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Problem with Network devices on boot
by Günther J. Niederwimmer 19 Jun '18

19 Jun '18

hello, I have a question about network devices ?? on my systems Centos 7.5 I have a Problem with starting Network devices! I set up two servers with KVM on the first I have 6 KVM installed Systems on the second I have 5 KVM installed systems? When I have to reboot my system (Kernel update....) the most time one Network Device is missing on the KVM Clients (eth0) I have configured my system with I/O Shared Network like this xxx.xml <interface type='hostdev' managed='yes'> <mac address='XX:XX:XX:XX:XX:XX'/> <source> <address type='pci' domain='0x0000' bus='0x03' slot='0x13' function='0x1'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/> </interface> and a second one! <interface type='hostdev' managed='yes'> ......... ............ This Interfaces are always starting But I have also a Bridge on the systems (eth0) configure for internal Networking (DNS, LDAP.....) <interface type='bridge'> <mac address='XX:XX:XX:XX:XX:XX'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> This interface is failing the most time on some KVM Installs!! I have always to check is the Interface starting or not?? AFter 2 or 3 reboot with virsh reboot xxxxx the system is starting most time with the third Interface ! Can any tell me why this Problem exist?? Thanks for a answer, -- mit freundlichen Grüssen / best regards, Günther J. Niederwimmer

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CentOS Kernel Support
by Ken Young 18 Jun '18

18 Jun '18

Is anyone on the mailing list aware of anyone who supports older versions of CentOS kernels? Particularly, I am interested in getting security patches added to kernel-3.10.0-514.10.2.el7.src.rpm. Please let me know. Regards, Ken Y

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Re: [CentOS] Passwords in plain text
by Richard 18 Jun '18

18 Jun '18

> Date: Monday, June 18, 2018 07:57:56 -0500 > From: Valeri Galtsev <galtsev(a)kicp.uchicago.edu> >> I agree with you .. unfortunately, gmail does not. They have >> enabled it for gmail users .. so if someone from yahoo xends a >> mail from a yahoo address, it gets rejected by gmail accounts. >> The list setting wrt dmarc doesn't matter .. it is totally gmail >> enabling it. >> >> What our settings do is NOT send the From (as the original >> sender), if the sender is on a domain where dmarc is enabled, so >> that gmail does not reject it. >> >> If it is rejected by gmail .. it causes (eventually) .. not he >> sender's, but the recipient's account on gmail to be disabled by >> the mailing list as non-existent. > > I'm surprised no one arrived at conclusion: don't use gmail then. > > Valeri > >> [OT] My (non-gmail) mail hosting provider also enforces the DMARC settings that others put in place, so this isn't (just) a gmail issue. Most people in the field find the p=reject setting that yahoo is using to be less than optimal, and come to the conclusion that the best course of action it to avoid sending mail (specifically to mailing lists) from such providers. All places like my provider and gmail are doing is enforcing the standard. That others have selected poorly considered settings is the fault of the site making those selections, not the site doing the enforcing of the standard. [the DMARC notifications are, in my view, a very serious privacy leak, so it should be avoided, but that's a whole separate off-topic discussion.] - Richard

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Re: [CentOS] Passwords in plain text
by Richard 18 Jun '18

18 Jun '18

> Date: Friday, June 15, 2018 14:55:21 -0700 > From: Akemi Yagi <amyagi(a)gmail.com> > > On Fri, Jun 15, 2018 at 9:57 AM, Gianluca Cecchi > <gianluca.cecchi(a)gmail.com> wrote: >> >> Il Ven 15 Giu 2018, 18:45 Larry Martell <larry.martell(a)gmail.com> >> ha scritto: >> >>> On Fri, Jun 15, 2018 at 12:41 PM rj coleman >>> <rjcdevelop(a)gmail.com> wrote: >>> >>> > Am I the only one who just received this email from this group? >>> > Which came with my password in the email in plain text? > >>> > > Your membership in the mailing list CentOS has been disabled >>> > > due to excessive bounces The last bounce received from you >>> > > was dated 15-Jun-2018. You will not get any more messages >>> > > from this list until you re-enable your membership. You will >>> > > receive 3 more reminders like this before your membership in >>> > > the list is deleted. >>> > > >>> I got it as well. >>> >> Mee too > > I also received the "has been disabled" notification. It looks like > users with gmail addresses are affected. > > CentOS admins are looking into this issue (I believe). > > Akemi I believe this is a DMARC issue. Yahoo, among other places, has set their dmarc records to p=reject: dig +short txt _dmarc.yahoo.com "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua@yahoo.com;" So, if your mail hosting provider enforces dmarc,(gmail does) and you get mail from a list that doesn't rewrite the headers, and people from places like yahoo post to the list, you'll likely get some form of warning about being being kicked off the mailing list every now and then. The frequency depends on how often people from p=reject places post, and what the settings are for bounce handling of the mailing list in question. I believe that the current version of mailman can be configured to do the necessary header rewrites. Some lists I'm on only do the rewrites for headers of posts coming from p=reject sites (much less annoying than having them all rewritten).

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DMARC test , please ignore (eom)
by Fabian Arrotin 18 Jun '18

18 Jun '18

1 0

wildcard certificate
by Jerry Geis 16 Jun '18

16 Jun '18

Hi all - I am trying to figure out how to add a wild card certificate given to me for a CentOS installation. I have a script that sets up HTTPS so I am a little familiar with things - but they provided me two files: name_ee.crt name_i1.crt I'm not sure how to apply that to the /etc/httpd/conf.d/ssl.conf file? Anyone done that before ? My initial searches were not helpful. Thanks, Jerry

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Discuss June 2018