Questions tagged [centos-8]
Version 8 of CentOS Linux distribution (released in September 2019). The CentOS Linux distribution is a stable, predictable, manageable and reproducible platform derived from the sources of Red Hat Enterprise Linux (RHEL).
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Error installing passenger: passenger-6 from passenger requires libruby.so.2.5, but none of the providers can be installed
Originally I wanted to update ruby2.5 to ruby2.7.
However passenger hindered the update (yum threw an error), so I removed passenger and ruby2.5 to install ruby2.7 afterwards.
Installing ruby2.7 then ...
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How to prevent showmount from hanging
We are implementing a web front end to manage NFS and CIFS shared folders. One part displays the available share points (exports) available from any arbitrary IP address.
The backend uses smbclient -L ...
- 181
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Centos 8 - ping 8.8.8.8 (connect: Network is unreachable)
I have set up a CentOS VM and I'm trying to bridge the network, but it's not working. I've spent more than 3 hours trying solutions I found on the internet, but I couldn't make it work because I lack ...
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Oracle VM CentOS8 unable to connect to internet with Bridged Adapter
I am trying to connect to the internet with a bridged wireless adapter in CentOS8 Virtual Box. I am running Windows 11. No IP Address shows up for enp0s3.
My settings:
Ip a:
ifcfg-enp0s3
I have a ...
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Can't install cairo-devel and pango-devel on Centos 8.1 (for Tesseract)
In order to compile the Tesseract Training programs from source code, the development packages for pango and cairo must be installed. However, I'm having trouble installing them on Centos 8.1.
# cat /...
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562
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YUM: error setting certificate verify locations
i'm trying to get yum update to work again, however, it always gives me this message, what can i do?
[root@CJL01 ~]# sudo yum update
Docker CE Stable - x86_64 ...
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2
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146
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At boot, howto start systemd service described in a NFS path
on our centos 8 servers, we have many custom services to start at boot time.
To split things between system and "our stuff", we put everything in our path /truc
Thoses services are enabled ...
- 145
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3
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617
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"Server refused our key" from putty on Centos8 system
I have an AWS EC2 instance running Centos8 with flawless SSH connections using a regular ssh client (not putty).
I need to connect using putty from a Windows10 Pro desktop.
I hope this community can ...
- 121
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Sign virtual box modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) Centos 8
I started using Centos 8 recently, and I installed VirtualBox to manage my virtual machines, the problem that I encountered with is that my VirtualBox couldn't boot any VMs and it told me to execute ...
- 121
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How to allow static route through nftables firewall/nat
I have the following two interfaces on a nftables gateway.
eth0 (192.168.0.1) connected to 192.168.0.0/24 network
eth1 (172.16.0.1) connected to 172.16.0.0/24 network
I created the following setup
...
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244
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qemu-kvm on centos: how to get back vmvga?
I am currently using qemu-kvm (reports version QEMU emulator version 4.2.0 (qemu-kvm-4.2.0-59.module_el8.5.0+1063+c9b9feff.1)) as virtualization engine.
My guest is an old SLES instance with 2.4smp ...
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468
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No such file or directory on all binaries after uninstalling RPM
This morning I was recompiling an RPM that I need to test that's built with CMake and I went to uninstall the old one which was missing some stuff. After uninstalling the old one, I went to install ...
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Yum nothing provides libraries
I'm trying to resolve a library dependency issue with a few packages (our code). We have one package, let's say package A, which has a dependency on two libraries provided by package B.
Package A's ...
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515
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Where did the /boot/grub2/grub.cfg `linux16` lines go CentOS 8 / Oracle Linux 8 / RHEL8?
In el7 there were lines in grub.cfg like linux16 /vmlinuz to load a kernel and create menu items. In el8, those menu items are not listed in grub.cfg after a grub2-mkconfig -o /boot/grub2/grub.cfg.
I ...
- 361
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Updating CentOS 8.3 to Stream got Killed in the middle of process
I am in the process of upgrading my DB server from CentOS 8.3 to CentOS 8 Stream.
I'm using the regular commands:
dnf --disablerepo '*' --enablerepo extras swap centos-linux-repos centos-stream-repos
...
- 105
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SFTP prevent user from deleting original directory
I cannot find how to prevent chroot users from deleting some original directory. I have an SFTP that is already working. Below is my process to create a directory for new partners.
[root@...]# ...
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239
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Changing the default kernel does not change uname
I have a hetzner server, and I wanted to use wireguard on the server. As shown below, my wireguard module is only available for the kernel version "4.18.0-348.el8.x86_64".
$ rpm -ql kmod-...
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782
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Installed php74-php-mysqlnd but module is not available
I am setting up a clean CentOS 8 server and installed PHP using the Remi repositories. In there, it also has a php74-php-mysqlnd package that should be installing the correct .so files, but I do not ...
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Rocky Linux/Centos 8: Why are we unable to switch to a virtual terminal if in X?
We are unable to switch from X to a virtual terminal on Rocky Linux. xmodmap -pke and dumpkeys results are the same as CentOS 7. Ctrl+Alt+F6 on Rocky (below) has no effect. chvt works. Switching ...
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How can I start/stop/disable all VNC servers on Rocky Linux/Centos 8 with one command? (TigerVNC)
Previously, wildcards were supported. E.g.
sudo systemctl stop 'vncserver@*'
sudo systemctl disable 'vncserver@*'
Now in Rocky Linux (and Centos-8 should be the same), the users are listed in "/...
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2
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Error unpacking rpm package
I have upgraded just before my centos 7 to centos 8. after a few hours of effort with the guide, I was upgraded.
now I am trying to use yum for a couple of dependencies. as I have removed yum I am ...
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What is the Rocky Linux/Centos 8 equivalent to system-config-printer?
The system-config-printer command is not found and is not available through yum. My program needs to run the system graphical printer setup command. Is "gsd-printer" equivalent? (I am remote ...
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SyntaxHighlight - MediaWiki - Centos 8
So I am using Centos 8 Stream starting from minimal install and I have built a functioning MediaWiki v1.35.4 accessible within my local network with httpd(apache).
I am trying to utilize ...
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ASP.NET Core app hosted on CentOS 8 throws an out of memory exception, but works fine when developing on Windows?
We are using FastReport to generate reports, while we are developing on our Windows machines, it is possible to generate pdf files that are + 10 pages in size, but when we publish this (target runtime ...
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1k
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Trouble to install docker on my centos 8 VM
My dev machine is a CentOS 8 VM, and I'm trying to install docker on it, so I can locally create docker images. I'm basically following the docker tutorial here: https://docs.docker.com/engine/install/...
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How to install certutil on Centos?
I am trying to get libreswan VPN running on my centos system but I seem to be missing the certutil package
/usr/local/sbin/ipsec: line 394: certutil: command not found
However I have been looking ...
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CentOS server migration (physical type of migration only HDD)
I need your help regarding "phyisical" migration of the CentOS server. At the moment my CentOS is installed on the C220 Cisco server, but in next couple of weeks I will get another C220 that ...
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Readonly / filesystem immediately after install
I'm using pxeboot and kickstart to automate the installation of CentOS 8.
For some reason the resulting systems have a readonly / filesystem after install and its driving me nuts. What might be ...
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410
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Mount overlay before starting services on Centos 8
I'm using centos 8 OS. I need to mount overlay on boot (for example to store /var/log on a different disk) before other services started.
My initial implementation was to write a service (/etc/systemd/...
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VPN blocking internet access on my CentOS
I am using CentOS 8 and for some projects I need to connect on a
FortiClient VPN. It seems that the configuration of the VPN is blocking my machine to have any internet access other than the VPN.
I ...
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564
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CentOS 8, which SVN GUI client can be used on it?
I just installed CentOS 8. I am wondering which SVN client can be used on it?
I am using KDESvn on my years-old Fedora. But now the CentOS 8 is the GNOME desktop.
How about RabbitSvn? it seems that it ...
- 325
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"hostname: command not found" CentOS 8
On CentOS 8 the hostname command was removed. With seemingly no way to get it back. No documented way at least Duckduckgo tells me.
The problem with this approach is that the whole world expects the ...
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Try to setup static IP on CentOS
I am very new to Linux based operating systems. I can navigate terminal a little, I know how to "VIM".
I am trying to give my machine a static IP.
I need to get into and save an edited file ...
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235
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Problems running steam on CentOS
I've installed steam-1.0.0.66-1.el8.i686.rpm on CentOS 8.2 and I am using the latest nvidia driver with cuda 455.32.00 and I get this:
[2020-11-12 02:59:20] Startup - updater built Oct 28 2020 23:34:...
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Why i am getting " no soundcards found..." and not getting any sound?
[msingh@localhost KVMfiles]$ aplay --list-devices
aplay: device_list:272: no soundcards found...
[msingh@localhost Extrasoftware]$ lspci -v | grep -A7 -i "audio"
00:1f.3 Audio device: ...
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Centos Stream vs Centos linux?
I have been using centos as my desktop environment, now there are two versions of centos available for download. Centos stream vs centos linux.
As per google centos stream is basically used for ...
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Why Centos 8 iso images doesn't boot as a CD in Virtualbox?
I'm trying to install Centos 8 on Virtualbox in Windows.
When loaded in the virtual CD drive, the official .iso doesn't boot.
I got the message :
"FATAL: No bootable medium found! System halted.&...
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How should a dhcp server allocate only one ip address?
How should I configure the dhcpd.conf file so the DHCP server would allocate only one IP address from a subnet to the first VM that is connecting to the DHCP server? Thank you.
Operating system: ...
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What is “/dev/ploop15234p1” on my VPS?
After transferring some big files to my VPS I started getting "No space left on device". Even though du -sh / showed I had plenty of space, df -h reported differently:
Filesystem ...
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CentOS 8.2 failing to boot on VirtualBox
I'm trying to install the latest CentOS, 8.2.2004, on VirtualBox and it's failing at this point:
I have tried the three images, dvd, boot and minimal, same results.
The full VirtualBox config is:
...
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Trouble with installation of Steam on CentOS 8
After updating graphics card and during installation of Steam on CentOS 8 I get:
[root@comp pawel]# yum install epel-release
Error:
Problem: conflicting requests
- nothing provides ...
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1
answer
134
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R "RPostgrSQL" package fails to install on Centos 8 (as `lib` is unspecified)
I want to install the R package RPostgresql to connect to my PostgreSQL database called "crex" on Centos 8. When I run
> install.packages("RPostgreSQL")
in the terminal I get ...
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430
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CentOS 8 auditd AVC denials message flood caused by denied setuid
Today my CentOS 8 suddenly frozen and not responding to user inputs.
When I tried to login from console, I saw messages like these:
audit: backlog limit exceeded
audit: backlog limit exceeded
audit: ...
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Why am getting authentication error for connecting to wifi via wifi adapter with correct password?
(base) [msingh@centos rtl8192eu-linux-driver]$ sudo nmcli --ask dev wifi connect ACT103292835565
Password: ••••••••••••
Error: Connection activation failed:(53) The Wi-Fi network could not be found
(...
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496
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Testing syslog-ng on CentOS 8
I am relatively new to Linux and networking but was tasked with the following at work:
I built up a CentOS VM machine ( using VirtualBox) on which I had to install Splunk Heavy Forwarder and syslog-ng....
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761
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CentOS 8.2 does not boot after updating in 1 Aug 2020
I updated my CentOS 8.2 yesterday (yum update), everything was good until a rebooted my system, there was no boot loader! the system get stuck in a black window without showing anything at all.indeed ...
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Two Interfaces and lost packages
I have two ethernet interfaces named enp1s0f0 and enp1s0f1. They have ip addresses from same subnet (don't think it matters tho). Here is scenario:
My distro is Centos8
I have done "echo 1 > /...
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1
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2k
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How to install jsoncpp on CentOS 8
I have tried:
$ sudo dnf install jsoncpp
Last metadata expiration check: 0:31:37 ago on Fri 17 Jul 2020 02:02:47 PM CST.
No match for argument: jsoncpp
Error: Unable to find a match: jsoncpp
And I ...
- 546
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Packer Digital Ocean FIPS Mode cannot ssh
I'm using Packer to build a Centos 8 box on Digital Ocean with FIPS mode enabled.
# setup.sh script
fips-mode-setup --enabled
Then I use Terraform to provision an Droplet with that new image, and ...
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232
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Centos 8 Suspend/Sleep on inactivity
I have setup a Centos 8 workstation and have not found any way to get it to sleep even after lots of googling around.
How do I get it to sleep on inactivity, and get it to Wake-On-Lan?
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