Discuss February 2021

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67 participants
46 discussions

smba shares are unreachable once or twice per month
by Prengel, Ralf 10 Feb '21

10 Feb '21

Hallo, I ve a problem with my samba-server. We are using a centos 7.7 with an samba exporting samba-shares. Logins are managed by our Windows-AD. The samba server has only the function to exports hares. Windows clients are Win10 patched every month. Our problem: Once or twice a month shares aren't akctive any longer and reachable for the Window-Clients. Network can nor be a reason because the same directory exported via NFS is reachable for all Linux-NFS-Client. Normally we disconect and connect the Samba server in the AD and after a reboot the shares are working again but that cant be the solution ;-) Can anyone give me hints hwo to anaylse and solving the problem. Thanks Ralf

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CentOS-announce Digest, Vol 191, Issue 3
by centos-announce-request＠centos.org 10 Feb '21

10 Feb '21

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2021:0411 Important CentOS 7 flatpak Security Update (Johnny Hughes) 2. CEBA-2021:0439 CentOS 7 glibc BugFix Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 9 Feb 2021 14:32:53 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2021:0411 Important CentOS 7 flatpak Security Update Message-ID: <20210209143253.GA26338(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2021:0411 Important Upstream details at : https://access.redhat.com/errata/RHSA-2021:0411 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 0e230546571aa26c06f1097967584ab4b9e777e7ca6c94d45f8706a36bdccc22 flatpak-1.0.9-10.el7_9.x86_64.rpm 724795eec6065da1df593d22a6a359fc5b241aec5a3916cbec646ff78f2196ba flatpak-builder-1.0.0-10.el7_9.x86_64.rpm 85ac0468355fd6847c79849e947fd3b5d88f606ad3aa6fd06cb4aca3fe3c9fc8 flatpak-devel-1.0.9-10.el7_9.x86_64.rpm 6a5560cf575ee9bfa9cac85044e94e3bce3ea85e26431c99e41877289cf82b64 flatpak-libs-1.0.9-10.el7_9.x86_64.rpm Source: 170d39f61f08b19f0c202440b9ac801e8d5e80ec0240b8cd0f3a9d85a3c109d4 flatpak-1.0.9-10.el7_9.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Tue, 9 Feb 2021 14:33:56 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2021:0439 CentOS 7 glibc BugFix Update Message-ID: <20210209143356.GA26542(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2021:0439 Upstream details at : https://access.redhat.com/errata/RHBA-2021:0439 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: ee561a3f0dd8945edec3478e8426cc324bdf6fc5fe6a31d762cfae60d3e14830 glibc-2.17-323.el7_9.i686.rpm b2b420ac2c03b3a2e4cadd073857498446180ec51a863fe30335c9da3a963fde glibc-2.17-323.el7_9.x86_64.rpm f48d75115ac638576d608849a173ace6a70c2430a2e0226487652befdf004b27 glibc-common-2.17-323.el7_9.x86_64.rpm acbb0c34227bd9c7bba35cfa08b4942dd141ee4ccadd128d8acedaef5e31522c glibc-devel-2.17-323.el7_9.i686.rpm aab72ef4b89bc4481b87f7aaf225cbdefb62073dddddc7fc7c2b94ab11a0a936 glibc-devel-2.17-323.el7_9.x86_64.rpm 9ba71fe357dd09d1913b30b0bd83507588d8cb06eda6f2c15326f3f1384c6180 glibc-headers-2.17-323.el7_9.x86_64.rpm eae7a2d2bc9f6058c113c27e6bdea6677a865df0f7924ed51165a2653c2d2175 glibc-static-2.17-323.el7_9.i686.rpm 49e01e923bc5d1026751341c9a01ab8ef4d50d8b17e94f179de33afcbfb0b234 glibc-static-2.17-323.el7_9.x86_64.rpm cafdbebcda7664e47d81f647d715249983cbe0bb4b063c1d56ab327a8766e2d0 glibc-utils-2.17-323.el7_9.x86_64.rpm 27d1ba676d3d4007102e714f71f0f4e97d46890c6eed54e5f10720ff65e7cea8 nscd-2.17-323.el7_9.x86_64.rpm Source: cb68b648ffec5a38b0cef7e6a88fb2dfb6357c8f0a17cf0331376a3cdfd41d97 glibc-2.17-323.el7_9.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 191, Issue 3 ***********************************************

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SCLO php70 imap missing
by H 10 Feb '21

10 Feb '21

I am installing php70 on a machine running CentOS 7 for a particular reason and needed sclo-php70-php-imap which I believe is the imap module for php70 from SCL. It, however, does not seem to be available even though https://cbs.centos.org/koji/buildinfo?buildID=24734 suggests it should be. Am I missing something?

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Resizing a QEMU guest display
by Bill Gee 09 Feb '21

09 Feb '21

Hello everyone - I think I know the answer, but just in case ... I want to run it by the experts. I have a machines running CentOS 7. "uname -a" returns this: Linux practice7.billgee.local 3.10.0-1160.15.2.el7.x86_64 #1 SMP Wed Feb 3 15:06:38 UTC 2021 x86_64 x86 _64 x86_64 GNU/Linux This machine has an nVidia GS8400 and uses the nouveau driver. Its main job is to be a host for QEMU/KVM virtual machines. The QEMU packages on the host are: [bgee@practice7 ~]$ rpm -qa | grep qemu qemu-kvm-1.5.3-175.el7_9.3.x86_64 qemu-guest-agent-2.12.0-3.el7.x86_64 qemu-kvm-common-1.5.3-175.el7_9.3.x86_64 qemu-img-1.5.3-175.el7_9.3.x86_64 libvirt-daemon-driver-qemu-4.5.0-36.el7_9.3.x86_64 ipxe-roms-qemu-20180825-3.git133f4c.el7.noarch One of the guest VMs is Fedora 33. The guest comes up with a display resolution of 1024x768. I have not found a way to change it to something higher. If I go to the Settings - Display item in Fedora, there is a long list of resolutions. No matter what I choose, the system will switch to that resolution for about 1/2 second and then go back to 1024x768. This happens when using VNC to connect remotely and also when running on the host computer. Resizing the guest display window does nothing except make big black borders around the guest display. The guest video configuration in the virtual machine manager is set for "QXL". In my searching I found several suggestions to use "virtio" instead. When I make that change and start the guest, it immediately throws an error: "This QEMU does not support 'virtio' video device" I also tried "vmvga" and "cirrus". The cirrus setting does not resize and also loses coordination of the mouse pointer. The vmvga setting gives the same message about not being supported in this QEMU. I verified that the spice-vdagent package is installed on the guest VM. The virtual machine manager has "Resize guest with window" set to ON. Just to make life really interesting... Another guest VM on the same host is running CentOS7. That machine happily resizes! It is set for QXL in the virtual machine manager. I think I am just out of luck. I found some references which say that CentOS 7 does not have support for virtio displays. Is that right? Is there some way to resize the Fedora guest? I don't care about dynamic sizing by dragging a window border. If I can choose something and have it stick, I would be happy. Thanks! -- Bill Gee

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Recommendation for 10 gigabit NICs on CentOS8
by Strahil Nikolov 09 Feb '21

09 Feb '21

Hi All, can you share what kind of old NICs do you use on CentOS 8 (Stream or not , it doesn't matter) without any issues? I was looking at ebay and I found some pretty old Mellanox "ConnectX" or "ConnectX-2" but I seriously doubt they will work on CentOS 8. Any proposals are also welcome. I don't care of the brand as long as it is PCIe and is supported by the vanilla kernel. Best Regards, Strahil Nikolov

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firewalld - same source in different zones
by Łukasz Posadowski 08 Feb '21

08 Feb '21

Hi. I have a little trouble with firewalld. I'm trying to open some ports for monitoring server, but it's in the same network as "home" zone: Monitored host (192.168.111.60): lukasz @ strategie 17:52:19 ~ $ -> sudo firewall-cmd --get-active home sources: 192.168.111.0/24 (open ports 22, 80, 443) monitoring sources: 192.168.111.19 (open ports: 5666) public interfaces: ens18 (no open ports) --------------------------------------------------- Monitoring host (192.168.111.19): lukasz @ potemkin 17:57:25 ~ $ -> telnet strategie.ping.local 5666 Trying 192.168.111.60... telnet: connect to address 192.168.111.60: No route to host lukasz @ potemkin 17:57:26 ~ $ -> telnet strategie.ping.local 80 Trying 192.168.111.60... Connected to strategie.ping.local. Escape character is '^]'. ^] telnet> Connection closed. --------------------------------------------------- I think there are conflicting rules on a monitored host, that: - prevent access to 5666 from 192.168.111.0/24, - give access to 5666 from 192.168.111.19 and packets from potemkin are routed trough a home zone. I really would like to have dedicated "monitor" zone. Is there a way to give "monitor" zone more priority, than "home"? I may end with OpenVPN on potemkin and use 172.30.25.0/24 for monitoring, but, apart from encryption aspect, it seems a little excessive. Thank You. -- Łukasz Posadowski

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Re: [CentOS] udev rules & USB devices - ignored at boot
by lejeczek 08 Feb '21

08 Feb '21

On 08/02/2021 08:10, Strahil Nikolov wrote: > Can you share your udev rules ? > > Best Regards, > Strahil Nikolov > > On Sun, Feb 7, 2021 at 15:33, lejeczek via CentOS > <centos(a)centos.org> wrote: > Hi guys, > > I have an Ethernet USB adapter for which udev executes my > custom rules but!... udev does it only at plug-in > event and > not! when the USB stays plugged in during a reboot, then > same rules are ignored (or some other problem results in > udev failure to do the same when device is plugged to a > running system). > My system is just an average box with a Ryzen on a B550 > platform. > Anybody sees this reproduce? > many thanks, L. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org <mailto:CentOS@centos.org> > https://lists.centos.org/mailman/listinfo/centos > <https://lists.centos.org/mailman/listinfo/centos> > simple rules: SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1e:10:1f:00:00", ATTR{type}=="1", KERNEL=="eth*", NAME="lteusb" like I said - I get iface "lteusb" when I plug the USB so it works. If I leave that USB plugged in and reboot then no "lteusb". regards, L.

2 1

Challenging times in trying to access oracle Linux documentation
by Shamim Shahriar 07 Feb '21

07 Feb '21

Good afternoon everyone, hope you all are well. Apologies if this is considered unwelcome -- asking oracle question in centos group -- but a lot of centos Vs oracle is going on here so hoping this will not be shot down. I am unable to access any of the oracle documentation I need, as it keeps on asking for support identifier number, which, as far as I can tell, is only available if I purchase an expensive support subscription. Even obtaining a free oracle cloud account does not give you any access. I was trying to access oracle FreeIPA setup how to documentation, and even after many emails work oracle support over several weeks -- no resolution! They are not even clear as to what I need to do to obtain access -- all they are saying is I need a SI number!!! Has anyone experienced that or is it me having the issue? If I have to pay subscription, why not continue with RHEL subscription anyway? Would appreciate if someone could please confirm. Best regards Shamim

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udev rules & USB devices - ignored at boot
by lejeczek 07 Feb '21

07 Feb '21

Hi guys, I have an Ethernet USB adapter for which udev executes my custom rules but!... udev does it only at plug-in event and not! when the USB stays plugged in during a reboot, then same rules are ignored (or some other problem results in udev failure to do the same when device is plugged to a running system). My system is just an average box with a Ryzen on a B550 platform. Anybody sees this reproduce? many thanks, L.

1 0

letsencrypt error
by Jerry Geis 06 Feb '21

06 Feb '21

Hi all - So I just ran into the changes lately from letsencrpt. certbot-auto is no longer available. I added this to httpd.conf <VirtualHost *:80> ServerName mydomain </VirtualHost> service httpd restart When I do "certbot -d mydomain" I get this : Domain: mydomain Type: unauthorized Detail: Invalid response from http://mydomain/.well-known/acme-challenge/i_fU1bFrQZzgfVI2FtWo8Ov0ITjplCcP… [97.107.162.8]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>403 Forbidden</title>\n</head><body>\n<h1>Forbidden</h1>\n<p" What did I miss ? Thanks Jerry

4 8

msmilter doesn t start / Can't open PID file /run/MSMilter.pid
by Ralf Prengel 05 Feb '21

05 Feb '21

Hallo, msmilter doesn t start. Has anyone a hint for me? I used this tutorial. /run exists and selinux is disabled. https://www.awsmonster.com/2020/03/how-to-install-mailscanner-stable-v521.h… Thanks for a hint. Ralf -- Unit msmilter.service has begun starting up. Feb 05 15:09:14 vader2 msmilter-init[1001]: Edit the file /etc/MailScann-- Unit msmilter.service has begun starting up. Feb 05 15:09:14 vader2 msmilter-init[1001]: Edit the file /etc/MailScanner/MailScanner.conf according to Feb 05 15:09:14 vader2 msmilter-init[1001]: your needs. When complete, edit /etc/MailScanner/defaults and set Feb 05 15:09:14 vader2 msmilter-init[1001]: the variable to enable MailScanner to run: Feb 05 15:09:14 vader2 msmilter-init[1001]: run_mailscanner=1 Feb 05 15:09:14 vader2 systemd[1]: (yet?) after start: No such file or directory Feb 05 15:09:14 vader2 systemd[1]: Failed to start LSB: MSMilter daemon. -- Subject: Unit msmilter.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel er/MailScanner.conf according to Feb 05 15:09:14 vader2 msmilter-init[1001]: your needs. When complete, edit /etc/MailScanner/defaults and set Feb 05 15:09:14 vader2 msmilter-init[1001]: the variable to enable MailScanner to run: Feb 05 15:09:14 vader2 msmilter-init[1001]: run_mailscanner=1 Feb 05 15:09:14 vader2 systemd[1]: Can't open PID file /run/MSMilter.pid (yet?) after start: No such file or directory Feb 05 15:09:14 vader2 systemd[1]: Failed to start LSB: MSMilter daemon. -- Subject: Unit msmilter.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

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Which bug tracker should I use to report things to CentOS ? (recap)
by Fabian Arrotin 05 Feb '21

05 Feb '21

With some moving parts within the CentOS Project, some people are now confused about where to report things, as https://bugs.centos.org isn't the only bugs/tickets tracker, so let's just have a quick recap so that people aren't confused anymore ? :) # CentOS Stream (all kind of tickets) see https://wiki.centos.org/FAQ/CentOSStream#Where_do_I_report_bugs.3F So basically https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20… # CentOS Infra, CBS, SIGs, mirror, CI, etc see previous mail : https://lists.centos.org/pipermail/centos-devel/2020-August/055980.html # All the rest (CentOS Linux pkgs, etc) https://bugs.centos.org Hope that it helps , as we have people asking on irc the status of a ticket that was filed in wrong tracker (and so also not correct category as for example infra categories were removed/archived on https://bugs.centos.org) and not reviewed. -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Filesystem choice for BackupPC extrenal drive
by Kenneth Porter 05 Feb '21

05 Feb '21

I'm setting up a CentOS 7 box as a BackupPC 4 server to back up Windows boxes on my LAN. I'm using an external 1.5 TB USB drive for the "pool". BackupPC deduplicates by saving all files in a pool, a directory hiearchy with each file named for the checksum of the file, and the directories acting as a hash tree to reach each pool file. A backup for a specific workstation is a directory tree of checksums and metadata that point into the pool for the actual file data. Incremental backups are reverse deltas from periodic "filled" backups of all files. I'm using rsyncd to pull changed files from the workstations. I'm deciding which filesystem to use for my external drive. I'm thinking the main candidates are ext4 and xfs. What's the best filesystem for this application? <https://github.com/backuppc/backuppc> Repo for CentOS 7 users: <https://copr.fedorainfracloud.org/coprs/hobbes1069/BackupPC/>

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Intel/64 CentOS VM running on a Mac M1?
by Lists 04 Feb '21

04 Feb '21

My Dell Precision M3800 running Fedora works great but is really starting to show its age, and I'm thinking about getting a new Mac M1-based laptop as it would really be useful for Video production. But I really need to have a IA64 CentOS 7/8 VMs running locally for development as I'm often on the road and flaky Internet makes it a necessity to keep productivity up. I've been unable to officially confirm that VMWare/ Parallels/VirtualBox intend to support IA64 based OS's and it *needs* to be an exact (VM) copy of production so I can trial environments and builds prior to roll out. Calling around, I actually got ahold of a sales staff at Parallels who assured me (in broken India-accent English) that "of course all OS will supported when the trial complete" but given that I wasn't sure that he really understood my question I remain uncertain. Anybody here have any more information than I do?

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RHEL <==> CentOS <==> Oracle Linux migration scripts
by Nicolas Kovacs 04 Feb '21

04 Feb '21

Hi, I've recently done some extensive testing with the centos2ol.sh migration script provided by Oracle: https://github.com/oracle/centos2ol The script works perfectly on both CentOS 7.x and 8.x, so I wrote a little blog article about it: https://blog.microlinux.fr/migration-centos-oracle-linux-cas-pratique/ I wonder if something similar exists for other use cases, e. g. migrate from CentOS to Red Hat Enterprise Linux. Why I'd like to do this? Well, a significant part of my work is teaching Linux and writing books about it. My last two books have been based on CentOS 7.x, and I'd like future editions to be distribution-agnostic within the RHEL family. This is now an option since Red Hat offered free Developer subscriptions a few days ago. In other words, future blog articles and book chapters will be based on RHEL (the real thing), but I'll also test everything with the various clones, namely Oracle Linux and (probably) Rocky Linux as soon as there's a usable version. Public server providers like Scaleway offer the "usual suspects" among distributions, e. g. Ubuntu, Debian, CentOS and FreeBSD. So I'd like to know if there's a script out there that converts an existing CentOS (or Oracle Linux) installation into a RHEL system. Any suggestions ? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12

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not a Centos topic, but since many had concerns ......
by R C 03 Feb '21

03 Feb '21

Hello, not a Centos topic perse, but since many had concerns about 'regular' Centos going away, and "Centos Stream" replacing it. This is what I read today, might have been around longer though, don't know. "New Year, new Red Hat Enterprise Linux programs: Easier ways to access RHEL" https://www.redhat.com/en/blog/new-year-new-red-hat-enterprise-linux-progra…

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CentOS-announce Digest, Vol 191, Issue 1
by centos-announce-request＠centos.org 03 Feb '21

03 Feb '21

1 0

Reminder: CentOS Dojo this week. FOSDEM this weekend
by Rich Bowen 02 Feb '21

02 Feb '21

TL;DR: https://wiki.centos.org/Events/Dojo/FOSDEM2021 <-- Dojo Thursday and Friday https://fosdem.org/2021/ <-- FOSDEM Saturday and Sunday The full schedule of talks for the Dojo is available at the above URL, and includes a roundtable discussion with (some of) the Board. Registration is free, and all talks will be recorded for later viewing on our YouTube channel. But of course if you want to participate in the Q&A aspect of the event, you'll need to be there. Hoping to see you Thursday, --Rich

1 0

grub2-mkconfig with custom kernel
by Jerry Geis 02 Feb '21

02 Feb '21

Hi - I am running CentOS 7 I tried to add a custom initrd and custom vmlinux when I run grub2-mkconfig -o /boot/grub2/grub.cfg the custom files are not listed . when I reboot my entry for /etc/grub.d/40_custom is not listed either. How do I get grub2-mkconfig to recognize my entries ? Is grub2-mkconfig only looking at installed kernels - How do I get it to see mine? Thanks Jerry

1 1

Amazon Alexa on CentOS 7 - how?
by Frank Bures 02 Feb '21

02 Feb '21

Hi, I am looking for an app for CentOS that would enable me to control my Alexa compatible devices from my KDE desktop. Currently, I have to use an iPad for that. I found an app called Alexa installable via snap, but it had not been updated since 2017 and I could not find any detailed info about it. Is there an app out there that would allow me to do this? Thanks Frank -- <listfrank1(a)gmail.com>

3 2

luks encrypted - tell at boot to skip/ignore it - how?
by lejeczek 01 Feb '21

01 Feb '21

Hi guys. How to tell grub/kernel to ignore, skip either all or a specific block device which is luks-ecrypted - would anybody know? I have a box (kvm) which had a "secondary" luks-encrypted disk which now is detached and Centos just hangs @boot waiting for that disk. many thanks, L.

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