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Questions tagged [centos8]

CentOS 8 was a community developed and supported distribution of Linux based on Red Hat Enterprise Linux. It was released on September 24, 2019 and reached End Of Life on December 31, 2021.

CentOS 8 was a community developed and supported distribution of Linux based on Red Hat Enterprise Linux. It was released on September 24, 2019 and reached End Of Life on December 31, 2021.

280 questions
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The latest centos:8 docker image cannot run yum

With the latest centos:8 docker.hub image I cannot run yum. All yum commands fail with the error message Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist. This can be reproduced like…
firebush
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Proper repolist after migrate2rocky.sh to Rocky

My migration from centos8 to Rocky linux went pretty well myhost /etc/yum.repos.d # uname -r 4.18.0 myhost /etc/yum.repos.d # Goal for this question; is this repolist sane? Or are some not migrated correctly. I thought I might reinstall firewalld,…
Jeff Albrecht
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.net core 6.0 on CentOS installs wrong version

These are 2 commands I ran trying to install .net core 6.0 on CentOS 8 Stream: sudo dnf install dotnet-runtime-6.0 Last metadata expiration check: 0:12:04 ago on Tue 23 Nov 2021 17:38:47 UTC. . . . Installed: …
Boppity Bop
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iptables flushed on firewalld reload

I’m running on Rocky Linux (RHEL8 based) and am kind of struggling with firewalld and iptables. Well, not really iptables anyway… Let me explain. I setup a K8S cluster on VMWare ESXi with six virtual machines, all the same. I need to have firewalld…
Nicolas Goudry
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Routes in route6-eth0 don't apply

I made a file /etc/sysconfig/network-scripts/route6-eth0 with the following contents: default dev eth0 src ****:****::**** metric 50 pref medium However, it doesn't show up when I execute ip -6 route: # ip -6 route ::1 dev lo proto kernel metric…
Bas
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dracut-install: ERROR: installing 'sgdisk' dracut: FAILED

When i do a Centos 8 routine update from below command. dnf update I got a below error, i have no idea on how to fix this, Any guidance on how to fix this will very valuable. Running scriptlet: kernel-core-4.18.0-305.3.1.el8.x86_64 …
mahen3d
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Ansible error when trying to ping Windows 10 host. No winrm module

I'm using this command to ping a Windows host from my CentOS 8 Ansible server ansible windows -m win_ping But I get this output when executing it windows | FAILED! => {       "msg": "winrm or requests is not installed: No module named…
Nico Nico Pizza
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CentOS 8 NTP: Chrony will not Sync with sources, timedatectl showing no sync but NTP active

I have been battling with Chrony for the last few hours and cannot seem to figure out what I'm doing wrong. I found that my system time was set to 2015 when trying to activate Epel-release in DNF, some certificate errors lead me to trying to resolve…
Ryan Smith
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proto static metric for overlapping prefixes

Can someone please clarify how the route metric is set by Centos 8 in the following situation. I have two vlans on the system, each of which has a matching route prefix defined in /etc/sysconfig/network-scripts/route-vlanXX. ip route show gives the…
SlyOne
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On CentOS Certbot / Lets Encrypt uses snap to keep SSL certificates up to date. Is there another method that will keep certificates up to date?

Environment: Centos 8, Certbot, Lets Encrypt On CentOS distributions certbot / Lets Encrypt uses snap to keep SSL certificates up to date. Below are the instructions. certbot instructions: Nginx on CentOS/RHEL 8 $ sudo snap install core; sudo snap…
myNewAccount
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md raid5 extremely slow on discard

Hi all md raid experts Running Centos 8 (with all latest updates, kernel 4.18.0-240.1.1.el8_3.x86_64) where I have 3x2T Samsung SSD 860 QVO 2TB in raid5 (to be used as base for some KVM VMs) and when I do something that involves discard it's not…
lpaseen
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What is Apache trying to do with port 80 that SELinux is blocking?

I have a small web server (CentOS 8) that runs a small php & mysql app. It also runs runs Nagios, BIND, and Postfix running as a secondary MX. Everything seems to "work", and I've never noticed any problems. I'm able to load Nagios and the other php…
David W
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svnserve with selinux on nfs mount unable to start (Centos8)

might be a silly question. Struggling with my subversion server on a Centos8 with selinux enforced. We have an NFS mount to store the data (/mnt/data/svn). The problem (when selinux is in enforcement mode) is that the service won't start as it has…
Reto Stauffer
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How to extend partition in CentOS 8

I hope someone can help me here. I have below partition in my CentOS 8 which is a VM hosted in hyper-v 2012. [root@appliance ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G …
PGP
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Postfix 3.3.1 on Centos 8 can't enable TLSv1 or TLSv1.1

I recently migrated my main mail server to a new one, the old one had been running for almost 10 years and was the production server for around 20 domains and over 40 mailboxes. Everything went well and the configuration is not that much different…
moray
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