# Uncategorized **URL:** https://linux-community.web.cern.ch/c/uncategorized/1.md [Latest](https://linux-community.web.cern.ch/latest.md) · [Categories](https://linux-community.web.cern.ch/categories.md) · [Tags](https://linux-community.web.cern.ch/tags.md) --- ## [Welcome to the Linux Community Channel](https://linux-community.web.cern.ch/t/welcome-to-the-linux-community-channel/7)
**Author:** [@system](https://linux-community.web.cern.ch/u/system)\ **Replies:** 0\ **Last updated:** [September 17, 2019, 12:57pm UTC](https://linux-community.web.cern.ch/t/welcome-to-the-linux-community-channel/7 "2019-09-17T12:57:38Z")
You’ll find here answers to CERN specific linux questions such as: How to configure AFS client at CERN, How to use CERN time servers, How to print at CERN, etc Please ask questions (and/or provide solutions) about using… --- ## [Connection issues](https://linux-community.web.cern.ch/t/connection-issues/248)
**Author:** [@palexaki](https://linux-community.web.cern.ch/u/palexaki)\ **Replies:** 0\ **Last updated:** [November 13, 2025, 2:59pm UTC](https://linux-community.web.cern.ch/t/connection-issues/248 "2025-11-13T14:59:51Z")
Hi, I am trying to connect to lxplus using MobaXterm, and I get the message “Remote side unexpectedly closed network connection” as seen in the screenshot. I would appreciate any help on how to connect. Thank you in adv… --- ## [HP screen-integrated camera and speakers don't work on my desktop Alma Linux 9](https://linux-community.web.cern.ch/t/hp-screen-integrated-camera-and-speakers-dont-work-on-my-desktop-alma-linux-9/247)
**Author:** [@massi](https://linux-community.web.cern.ch/u/massi)\ **Replies:** 0\ **Last updated:** [November 12, 2025, 5:02pm UTC](https://linux-community.web.cern.ch/t/hp-screen-integrated-camera-and-speakers-dont-work-on-my-desktop-alma-linux-9/247 "2025-11-12T17:02:04Z")
hello I have a brand new HP 34" display Model E34m G4 WQHD Curved, bought from the official Cern-supported IT hardware, and I am trying to use the cute display-integrated camera and speakers on my PC Alma Linux 9 (massi… --- ## [Hint for migration from CentOS Stream 9 to Alma 9](https://linux-community.web.cern.ch/t/hint-for-migration-from-centos-stream-9-to-alma-9/238)
**Author:** [@deile](https://linux-community.web.cern.ch/u/deile)\ **Replies:** 0\ **Last updated:** [June 10, 2024, 9:37am UTC](https://linux-community.web.cern.ch/t/hint-for-migration-from-centos-stream-9-to-alma-9/238 "2024-06-10T09:37:10Z")
In the generally good recipe given in Migration - Linux @ CERN there is one step missing, leading to an error that made me very nervous because it was not mentioned in the troubleshooting: If you have the AFS client r… --- ## [How to configure your local Linux system to use a valid domain when sending mails from root](https://linux-community.web.cern.ch/t/how-to-configure-your-local-linux-system-to-use-a-valid-domain-when-sending-mails-from-root/220)
**Author:** [@manuel](https://linux-community.web.cern.ch/u/manuel)\ **Replies:** 0\ **Last updated:** [February 16, 2024, 1:53pm UTC](https://linux-community.web.cern.ch/t/how-to-configure-your-local-linux-system-to-use-a-valid-domain-when-sending-mails-from-root/220 "2024-02-16T13:53:55Z")
Please note that there is a SNOW KB article that describes how to configure Sendmail and Postfix in non-supported Linux distributions to use a valid domain when sending mails from root: https://cern.service-now.com/ser… --- ## [Taskbar/Topbar in Almalinux](https://linux-community.web.cern.ch/t/taskbar-topbar-in-almalinux/211)
**Author:** [@bargassa](https://linux-community.web.cern.ch/u/bargassa)\ **Replies:** 1\ **Last updated:** [October 3, 2023, 1:42pm UTC](https://linux-community.web.cern.ch/t/taskbar-topbar-in-almalinux/211 "2023-10-03T13:42:26Z")
Does someone know how to install a taskbar/topbar in AlmaLinux, which is one of the OS installed at CERN ? The problems with AlmaLinux in this regard are the following: The “hot corner” of AlmaLinux is really not prac… --- ## [SC8 to RHEL8 migration "Transaction test error"](https://linux-community.web.cern.ch/t/sc8-to-rhel8-migration-transaction-test-error/212)
**Author:** [@grancher](https://linux-community.web.cern.ch/u/grancher)\ **Replies:** 1\ **Last updated:** [August 28, 2023, 2:52pm UTC](https://linux-community.web.cern.ch/t/sc8-to-rhel8-migration-transaction-test-error/212 "2023-08-28T14:52:07Z")
Good afternoon, following Linux migration page, I would like to migrate my CS8 workstation to RHEL8. I get this error (full description below) "Error: Transaction test error: file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat… --- ## [Wifi connection at cern](https://linux-community.web.cern.ch/t/wifi-connection-at-cern/208)
**Author:** [@bonam](https://linux-community.web.cern.ch/u/bonam)\ **Replies:** 2\ **Last updated:** [August 1, 2023, 3:23pm UTC](https://linux-community.web.cern.ch/t/wifi-connection-at-cern/208 "2023-08-01T15:23:55Z")
dear all, every time I stay away from CERN for more than some days (don’t know exactly), my first connection to the CERN network (CERN or eduroam) hangs forever (oh well until I reboot) as seen in the two screenshots at… --- ## [Copying files from other user /eos folder](https://linux-community.web.cern.ch/t/copying-files-from-other-user-eos-folder/206)
**Author:** [@volodymy](https://linux-community.web.cern.ch/u/volodymy)\ **Replies:** 0\ **Last updated:** [June 26, 2023, 8:35am UTC](https://linux-community.web.cern.ch/t/copying-files-from-other-user-eos-folder/206 "2023-06-26T08:35:05Z")
Hello, I frequently exchange large simulation data with my colleagues. Before we used AFS personal /public, /work and /share folders. There is possible to copy files with the usual ‘cp -r’. What will be equivalent us… --- ## [Installing AlmaLinux9.1 from network boot: 'Local' users created, not LDAP (afs,eos)](https://linux-community.web.cern.ch/t/installing-almalinux9-1-from-network-boot-local-users-created-not-ldap-afs-eos/204)
**Author:** [@jpthomas](https://linux-community.web.cern.ch/u/jpthomas)\ **Replies:** 0\ **Last updated:** [May 15, 2023, 10:49am UTC](https://linux-community.web.cern.ch/t/installing-almalinux9-1-from-network-boot-local-users-created-not-ldap-afs-eos/204 "2023-05-15T10:49:47Z")
When installing AlmaLinux9.1 from the network boot on a PC at CERN, I’ve noticed that the accounts for the ‘responsible’ and the ‘main user’ are created as local accounts, not their LDAP home directory. I presume this is… --- ## [Adding a cern user account on an linux PC](https://linux-community.web.cern.ch/t/adding-a-cern-user-account-on-an-linux-pc/200)
**Author:** [@massi](https://linux-community.web.cern.ch/u/massi)\ **Replies:** 0\ **Last updated:** [April 4, 2023, 8:14am UTC](https://linux-community.web.cern.ch/t/adding-a-cern-user-account-on-an-linux-pc/200 "2023-04-04T08:14:42Z")
Is there a procedure to add a cern user account on a linux PC ? (a cern non-supported linux version, Ubuntu 22 in my case) (I suppose it would be something equivalent to what useraddcern does for you on Centos) --- ## [OAuth2 broken in thunderbird 107.2.1](https://linux-community.web.cern.ch/t/oauth2-broken-in-thunderbird-107-2-1/192)
**Author:** [@claforge](https://linux-community.web.cern.ch/u/claforge)\ **Replies:** 0\ **Last updated:** [February 15, 2023, 8:31am UTC](https://linux-community.web.cern.ch/t/oauth2-broken-in-thunderbird-107-2-1/192 "2023-02-15T08:31:40Z")
It seems that OAuth2 in thunderbird is broken with 107.2.0 and 107.2.1 for some users, including myself: What would be the correct way to request a package update to the IT team? --- ## [CC7: Problem with yum: Hack required to make it update again](https://linux-community.web.cern.ch/t/cc7-problem-with-yum-hack-required-to-make-it-update-again/138)
**Author:** [@jpthomas](https://linux-community.web.cern.ch/u/jpthomas)\ **Replies:** 1\ **Last updated:** [December 10, 2022, 5:16am UTC](https://linux-community.web.cern.ch/t/cc7-problem-with-yum-hack-required-to-make-it-update-again/138 "2022-12-10T05:16:59Z")
Just wondering if this is of use to some: On our CERN-CentOS7 machines, the ‘yum update’ today failed ie just exited with this last message: (…) Running transaction Warning: RPMDB altered outside of yum. Invalid ver… --- ## [BOOT PXE for HP EliteBOOK](https://linux-community.web.cern.ch/t/boot-pxe-for-hp-elitebook/166)
**Author:** [@joel](https://linux-community.web.cern.ch/u/joel)\ **Replies:** 0\ **Last updated:** [January 11, 2022, 8:46am UTC](https://linux-community.web.cern.ch/t/boot-pxe-for-hp-elitebook/166 "2022-01-11T08:46:24Z")
Hi, How I can force to boot on PXE an HP elitebook x360 ? I force the PXE boot on the bios and I have set the OS in landb but I am still boot on the current windows installation. Thanks in advance. joel. --- ## [Afs on Manjaro - cannot start the service](https://linux-community.web.cern.ch/t/afs-on-manjaro-cannot-start-the-service/150)
**Author:** [@bjlindst](https://linux-community.web.cern.ch/u/bjlindst)\ **Replies:** 0\ **Last updated:** [September 17, 2021, 10:17pm UTC](https://linux-community.web.cern.ch/t/afs-on-manjaro-cannot-start-the-service/150 "2021-09-17T22:17:38Z")
I am trying to get access to afs on Manjaro, but I am unable to start the openafs-client. I get the following error: × openafs-client.service - OpenAFS Client Service Loaded: loaded (/usr/lib/systemd/system/openafs-cl… --- ## [About Asus Pro WS WRX80E-SAGE SE WIFI motherbiard](https://linux-community.web.cern.ch/t/about-asus-pro-ws-wrx80e-sage-se-wifi-motherbiard/145)
**Author:** [@gantchev](https://linux-community.web.cern.ch/u/gantchev)\ **Replies:** 0\ **Last updated:** [August 11, 2021, 2:04pm UTC](https://linux-community.web.cern.ch/t/about-asus-pro-ws-wrx80e-sage-se-wifi-motherbiard/145 "2021-08-11T14:04:35Z")
Is this MB: Asus Pro WS WRX80E-SAGE SE WIFI compatible with CentOS? --- ## [CentOS 8 retirement - where next?](https://linux-community.web.cern.ch/t/centos-8-retirement-where-next/116)
**Author:** [@piperov](https://linux-community.web.cern.ch/u/piperov)\ **Replies:** 4\ **Last updated:** [May 3, 2021, 9:41am UTC](https://linux-community.web.cern.ch/t/centos-8-retirement-where-next/116 "2021-05-03T09:41:17Z")
In the context of the recent announcement that IBM will terminate CentOS8 prematurely, and not provide a free ‘Enterprise’ releases anymore, I was just curious if CERN, Fermilab, ETH, DESY will consider reviving the Scie… --- ## [CentOS8: dnf update fails, any suggestion](https://linux-community.web.cern.ch/t/centos8-dnf-update-fails-any-suggestion/120)
**Author:** [@grancher](https://linux-community.web.cern.ch/u/grancher)\ **Replies:** 2\ **Last updated:** [January 11, 2021, 10:49am UTC](https://linux-community.web.cern.ch/t/centos8-dnf-update-fails-any-suggestion/120 "2021-01-11T10:49:14Z")
Good morning, on a standard CERN installed desktop, CentOS8, I get failure with dnf update. Has somebody a suggestion? Thank you in advance, Eric \[root@x ~\]# cat /etc/redhat-release CentOS Linux release 8.2.2004 (Co… --- ## [NTP on Linux device](https://linux-community.web.cern.ch/t/ntp-on-linux-device/118)
**Author:** [@thzillio](https://linux-community.web.cern.ch/u/thzillio)\ **Replies:** 0\ **Last updated:** [January 7, 2021, 9:37am UTC](https://linux-community.web.cern.ch/t/ntp-on-linux-device/118 "2021-01-07T09:37:22Z")
Hi, We have some Linux device that are not able to synchronize probably to NTP on GPN. Using the following commands, I get those information: ntpq -c rv associd=0 status=c018 leap\_alarm, sync\_unspec, 1 event, no\_sys\_… --- ## [What happened to Asturix Linux / AsturLinux?](https://linux-community.web.cern.ch/t/what-happened-to-asturix-linux-asturlinux/106)
**Author:** [@dabadaba](https://linux-community.web.cern.ch/u/dabadaba)\ **Replies:** 0\ **Last updated:** [October 16, 2020, 1:38pm UTC](https://linux-community.web.cern.ch/t/what-happened-to-asturix-linux-asturlinux/106 "2020-10-16T13:38:46Z")
I heard rumours of this Asturian distribution in the past, but I can’t find much info at the moment: https://boowiki.info/art/derive-de-distributions-ubuntu/asturix-linux.html Anybody knows how it ended? --- ## [HP 840 G6 microphone issues](https://linux-community.web.cern.ch/t/hp-840-g6-microphone-issues/104)
**Author:** [@mantydze](https://linux-community.web.cern.ch/u/mantydze)\ **Replies:** 2\ **Last updated:** [October 9, 2020, 1:25pm UTC](https://linux-community.web.cern.ch/t/hp-840-g6-microphone-issues/104 "2020-10-09T13:25:51Z")
Hello, Does anyone have a laptop HP 840 G6 (standard from CERN store)? Centos8 does not recognize built-in microphone. Googling does not help much. Anyone has ideas? --- ## [Using CERNbox with the stock owncloud client](https://linux-community.web.cern.ch/t/using-cernbox-with-the-stock-owncloud-client/79)
**Author:** [@okeller](https://linux-community.web.cern.ch/u/okeller)\ **Replies:** 2\ **Last updated:** [July 23, 2020, 7:35am UTC](https://linux-community.web.cern.ch/t/using-cernbox-with-the-stock-owncloud-client/79 "2020-07-23T07:35:12Z")
Hi, just in case someone is running a Linux distribution that is not officially supported by CERNbox with its own client package. (I had this problem with Ubuntu 19.10, which got a CERNbox package only very recently) I… --- ## [WinCC OA on CentOS 8](https://linux-community.web.cern.ch/t/wincc-oa-on-centos-8/83)
**Author:** [@golonka](https://linux-community.web.cern.ch/u/golonka)\ **Replies:** 1\ **Last updated:** [March 18, 2020, 3:35pm UTC](https://linux-community.web.cern.ch/t/wincc-oa-on-centos-8/83 "2020-03-18T15:35:56Z")
HI there, a short report on running WinCC OA (currently recommended version 3.16) on CentOS 8. With some help of CERN Linux support, who kindly provided the necessary “compat-” libraries for testing we got WinCC OA 3.1…