Server Fault
Server Fault

Questions tagged [rhel8]

Enterprise Linux distribution released by Red Hat in 2019 and supported through 2029

168 questions
28
votes
2 answers

Newly created XFS filesystem shows 78 GB used

We have a 12 TB RAID 6 array which is supposed to be set up as a single partition with an XFS file system. On creating the new file system, it says it has 78 GB in use, but there are no files on the drive. [root@i00a ~]# df -h Filesystem Size …
yakatz
  • 1,313
12
votes
2 answers

Limit the RAM available to RHEL8

We have some tests we need to run in a server with 32Gb RAM. All the servers we have access to have 64GB and we can't physically change this. Is there some way of telling RHEL to use only some fixed amount of RAM, less than what is installed?
The Archetypal Paul
  • 905
9
votes
6 answers

Yum on Centos 8 - Failed to download metadata for repo 'AppStream'

I'm on a fresh Centos 8 install and have tried to use yum for the first time (on this machine). I get the following for any attempt to install or update anything: yum update CentOS-8 - AppStream 0.0 B/s | 0 B 00:00…
Imag1ne
  • 235
8
votes
2 answers

How to disable Web Console and Red Hat Insights prompt on login to RHEL8 via SSH?

Whenever I log into my RHEL8 server via SSH, I get these lines printed: Web console: https://:9090/ or https://:9090/ This system is not registered to Red Hat Insights. See https://cloud.redhat.com/ To register this system, run:…
cyqsimon
  • 365
8
votes
1 answer

"system clock synchronized: no", flip it to yes

# timedatectl outputs Local time: Tue 2020-10-06 13:35:31 PDT Universal time: Tue 2020-10-06 20:35:31 UTC RTC time: Tue 2020-10-06 20:35:30 Time zone: America/Los_Angeles (PDT, -0700) System…
Katerl3s
  • 183
7
votes
3 answers

Is there a good way to allow non-root users to mount arbitrary external USB drives on Linux?

We have a situation where a site office has a couple of Rocky Linux 8 servers and regularly receives large amounts of data from clients. Data arrives on a variety of external USB hard drives and the occasional USB memory stick. These drives can have…
bolind
  • 241
  • 2
  • 8
6
votes
1 answer

CPU is idle, but huge load, and NFS client stop responding

We have troubles with NFS server. There is 30TB of small files (mail server NFS). After some hours first or second client (where are mail services) stop responding on services ports, because there is not possible open file from NFS. Listing is…
Pavel
  • 487
6
votes
2 answers

RHEL8 upgrade to RHEL9 with Leapp: warning: Signature not supported. Hash algorithm SHA1 not available

After upgrading some servers from RHEL8 to RHEL9 using the Leapp utility there's some warnings after the upgrade in dnf and rpm: warning: Signature not supported. Hash algorithm SHA1 not available. Every time that I ran any of those commands I got…
Vinícius Ferrão
  • 5,870
6
votes
1 answer

What is the meaning of this line from ssh output: 'Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling'?

Everything works, ssh connects using private-public ssh key pair. Just few things in ssh -v Ora2 output isn't clear for me. This is complete ssh -v Ora2 output: PS C:\Users\roeslermichal> ssh -v Ora2 OpenSSH_for_Windows_8.6p1, LibreSSL 3.4.3 debug1:…
michal roesler
  • 195
6
votes
3 answers

Why the RHEL8 system do not generate SSH host keys automatically when missing?

On the RHEL 8 and previous it is usual, that the SSH host keys in /etc/ssh are generated automatically by sshd service when missing. Usually there should…
Jaroslav Kucera
  • 1,835
6
votes
2 answers

RHEL 9 in Docker container on macOS: subscription-manager is disabled when running inside a container

I'm attempting to use RHEL 9 via the redhat/ubi9 Docker image, having redhat individual developer subscription. However, on attempt to use subscription-manager, got this error message: subscription-manager is disabled when running inside a…
Nickolay Olshevsky
  • 161
6
votes
0 answers

Users created in Kickstart unable to authenticate

Thanks to the answers to this question, I've been happily generating Kickstart files for Scientific Linux 6 and 7 for the past 5 years. However, we're now starting to build out some test systems with CentOS 8 and running into some issues. Despite…
miken32
  • 1,021
4
votes
3 answers

STIG'd RedHat 8 kills tmux session upon SSH timeout

I am working on a Red Hat Enterprise Linux (RHEL) 8 machine with the DISA STIG applied via OpenSCAP. The STIG requires that users be automatically dropped into a tmux session, that tmux session locks the screen after a set idle time, and SSH…
Andrew Laramore
  • 61
4
votes
1 answer

Kafka stores log4j logs in directory literally called ${kafka.logs.dir}

I installed a preview version of Kafka 3.0 with log4j2 support (http://home.apache.org/~dongjin/post/apache-kafka-log4j2-support/) on a RHEL 8 server. Kafka and Zookeeper are running successfully as systemd user services. I set the environment…
Cabbage Parachute
  • 43
  • 1
  • 6
3
votes
4 answers

yum repo sync "Error: Failed to synchronize cache for repo 'rhui-client-config-server-8'"

While doing yum provides or yum update on AWS Instance of RHEL 8.0 (Ootpa) a "rhui-client-config-server-8" repository giving Failed to Synchronize error. Steps followed yum clean cache (no success) yum clean all (no success)
ras
  • 131
1
2 3
…
11 12