Questions tagged [rhel8]
Enterprise Linux distribution released by Red Hat in 2019 and supported through 2029
104
questions
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17
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How to send traffic of few domains to specific relay servers and rest all to the randomizer in postfix
I am running the postfix that comes with RHEL 8.5. I got a requirement that the mails to few domains are to be sent to a specific relay server and few domains are to be sent to the randomizer which is ...
0
votes
1
answer
38
views
Build OpenSSL 1.1.1q with FIPS in RHEL 8
Is it possible to build OpenSSL 1.1.1q with Fips support in RHEL 8? In RHEL 8.6, the supported version is OpenSSL 1.1.1k FIPS. But I want to upgrade this OpenSSL to the latest.
Thank you in advance.
0
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24
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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-...
0
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0
answers
15
views
How is setting the system-wide cryptographic policy for Java supposed to work?
When migrating a proprietary Java (and Jetty) based application from RHEL7 to RHEL8 I learned something new: At least with OpenJDK 11 the JVM still defaults to a 1024 bit Diffie-Hellman group unless ...
- 435
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votes
1
answer
20
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Systemctl cannot access additional config files for httpd
I have a freshly set up RHEL 8.6 with httpd installed (yum install httpd). In /etc/httpd/conf/httpd.conf additional configs are included on a mounted NFS share:
IncludeOptional /cat/soft/apache/...
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0
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1
answer
17
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Display custom message with getty@.service disabled
I have a CentOS 8 server running in a vm. I access this server only via ssh. Therefore I dont need the login prompt once server finishes booting up. Therefore I went ahead disabling getty@.service.
...
- 627
-1
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1
answer
46
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Encrypted Disk (LUKS): Upgrading from RHEL 8 to RHEL 9
Known limitations - Notable known limitations of Leapp currently include:
Encryption of the whole disk or a partition, or file-system encryption currently cannot be used on a system targeted for an ...
- 99
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53
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How to alter firewall (iptables) log rules such that they stop flooding the primary console on AlmaLinux 8?
I have a constant deluge of firewall blocks showing up on my console in AlmaLinux 8:
How do you modify iptables rules / settings so as to disable these from showing up on the primary console and to ...
- 983
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165
views
RHEL8 and GSSAPI Kerberos authenticate through Apache issue
I'm trying to run an apache virtualhost, on a machine currently running Red Hat Enterprise Linux release 8.5 (Ootpa), with Kerberos authentication using the new GSSAPI module (replacement of ...
- 11
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27
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Redhat don't show a single logical RAID5 drive, but I did it on hp storage machment assistant
I have a HP Proliant Microserver Gen10 plus, with 4 disk of 1T each one and configured for RAID5 from hp storage manager assistant. The configuration for create the array was good without errors.
But ...
0
votes
1
answer
161
views
On RHEL/CentOS/Oracle Linux installer Software Selection screen, what do the packages/environments actually install?
When installing Oracle Linux, at one point you need to choose the software. What actual packages are actually installed when you select Server, Minimal Install, and the subpackages such as Standard or ...
- 269
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78
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SELinux is preventing /usr/local/bin/python3.10 from append access on the file /data/logs/v100t1-grab.log
I am running RHEL 8. I am using podman to run containers with python apps. The apps need to rotate the logs. I am seeing this error on journalctl -xe:
SELinux is preventing /usr/local/bin/python3.10 ...
1
vote
1
answer
172
views
vm.swappiness in RedHat Enterprise Linux
I don't often post, so apologies in advance if my etiquette is poor.
I'm being directed to add vm.swappiness=0 in /etc/sysctl.conf.
When I view the contents of that file, I see the comments below. I'm ...
- 11
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1
answer
78
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How to avoid ExecStop status in systemctl status
systemctl status command shows the ExecStop Failure message. Even though my service is up and running.
testDB.service - the testDB service
Loaded: loaded (/usr/lib/systemd/system/testDB.service; ...
1
vote
1
answer
271
views
Change certbot renewal configurations to another Let’s Encrypt-Account
Using certbot 1.26.0.
Due to moving some certificate configurations to another server and creating new ones, I now have got two accounts. That was not intended and I think I don't need two accounts.
...
- 137
1
vote
1
answer
28
views
RHEL 8: Administrator vs. Auditor role
On RHEL 8, are there prepared functions, methods, processes or tools to implement administrator/operator and auditor roles in the following way:
An administrator/operator should be able to do almost ...
- 415
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430
views
How to check if KVM nested virtualization is supported on ARM64 processor?
I have a virtual machine running RHEL 8.5 on an ARM64 (aarch64) processor - Arm Neoverse N1.
Every tutorial I've found states looking at either /sys/module/kvm_amd or the /sys/module/kvm_intel folder ...
- 181
1
vote
1
answer
618
views
GSSAPI Error: KDC has no support for encryption type on RHEL 8 joined to multi-domain AD forest
I have a simple MS ADDS multi-domain forest setup with a parent domain and one sub-domain. I joined a RHEL 8 server successfully to the sub-domain by using this official documentation. All OSs have ...
- 415
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votes
0
answers
100
views
Nginx returning 404 on all static files when using upstream and reverse proxy with VueJS apps
I have two instances of the same VueJS app in two different servers. I'm trying to use upstream form nginx for load balancing but it is returning 404 on all files under static.
I've tried to keep this ...
1
vote
1
answer
32
views
RHEL 8.2 cannot change/remove /home directory
In my RHEL 8.2 box I want to remove the disk space from /home (/dev/VGSYSTEM/LVHOME).
I umount /home, mount /dev/VGSYSTEM/LVHOME in /mnt and try to move the only home directory in /mnt to /home... but ...
- 283
0
votes
1
answer
117
views
NFSv4 and kerberos: access denied 50% of the time
We are trying to mount NFSv4 shares on RHEL 8 clients, with kerberos. We have a very similar setup on another environment, and it worked fine. But on this setup, it happens that we get access denied ...
- 170
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27
views
RHEL 7 systemctl: Combine multiple services into one. start the service independently
I have followed the steps from RedHat to start the multiple services into one service.
https://access.redhat.com/solutions/3097871
/etc/systemd/system/myapps.target
[Unit]
Description=App Service Unit
...
1
vote
0
answers
129
views
PCS Cluster - Binding nfsserver resource to specific IP
I'm trying to deploy a HA NFS Cluster Architecture with PCS on Rocky Linux 8.5 . Current kernel and nfs related package versions, pcs configurations are shown with detail below.
I'm not able to ...
- 561
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votes
1
answer
50
views
Is it possible to use https with a Tang Network Bound Disk Encryption server?
Is it possible to use https with a Tang Network Bound Disk Encryption (NBDE) server?
Redhat's documentation casually says this is possible, but I can't find any examples of this anywhere and the ...
0
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0
answers
242
views
How to disable DEBUG logs on catalina.out (Tomcat 9)?
I'm getting a lot of DEBUG related logs on catalina.out of tomcat 9. Is there any way to eliminate those DEBUG logs?
Changing the log level to WARNING doesn't work for me.
Thanks in advance.
0
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0
answers
26
views
How to give permission to open a log file in RHEL 8
I am getting this error like
SELinux is preventing /usr/sbin/httpd from open access on the file /var/log/error.log
what to do here? How can I allow access to this file? Any clue?
- 1
0
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0
answers
20
views
Restrict some local Linux users to not be able to do anything on the machine
Long story short, I'm setting up a Dovecot mail server. Originally, I intended to use virtual users for the IMAP/POP3 authentication - basically making Dovecot look its own users up in a separate ...
- 113
1
vote
1
answer
1k
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Postfix causes issues when its service is enabled using systemctl and doesn't launch on boot
On a Rocky Linux version 8.5 machine (a bug-for-bug compatible Red Hat Enterprise Linux downstream), I have configured Postfix + Dovecot setup. After troubleshooting all configuration errors, I got to ...
- 113
1
vote
1
answer
225
views
Ansible Automation Platform - Changing 'Control Plane Execution Environment'
I have a Ansible Automation Platform 2.1.0 installation on RHEL8.
I have some jobs failing due to an incorrect Registry/image entry for the 'Control Plane Execution Environment'. I am able to replace ...
- 111
1
vote
1
answer
46
views
OpenLiteSpeed on RHEL8.5
I'm using EC2 with RHEL8.5 (Red Hat Enterprise Linux release 8.5 (Ootpa)). I wanted to install OpenLiteSpeed on that instance. my Question, Does OpenLiteSpeed support with RHEL8? If I don't wrong, ...
- 157
1
vote
0
answers
85
views
Files remaining locked after writing using mount.cifs
We have a server running RHEL 8.3 and connecting to a backup server running windows server running windows server 2016. We connect from RHEL to server using the command:
mount.cifs \\SMCFILE\SMC$\...
- 145
0
votes
1
answer
267
views
Enforce TLS1.2 in sssd client
In one of our environments Linux servers are set up with sssd / OpenLDAP for OS login.
To support older servers our OpenLDAP server has to support TLSv1.0 and TLSv1.1 still.
RedHat 8 does no longer ...
- 352
1
vote
1
answer
162
views
DNF Enable/Disable in Puppet
I'm trying to get PHP 7.4 installed on my RHEL 8 system with Puppet, but can't get the package declaration right to disable php and enable php:7.4 with dnf. The Puppet Package documentation doesn't ...
- 11
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votes
4
answers
867
views
How to install a specific version of PostgreSQL in Red Hat 8?
I'd like to install a specific version of PostgreSQL in RHEL 8 with dnf.
To achieve this I followed the PostgreSQL guide : https://www.postgresql.org/download/linux/redhat/
But actually I can only ...
- 142
3
votes
1
answer
506
views
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 ...
0
votes
0
answers
18
views
How to automate RHEL8 patching with additional pre and post patching actions
I am looking for a best way to schedule the patching of few of our RHEL8 servers using yum. We need to perform some actions like sending email notification, stopping services before patching. After ...
1
vote
2
answers
2k
views
RHEL 8 Registration Failed: SSL: UNSAFE_LEGACY_RENEGOTIATION_DISABLED
I am trying to stand up a minimal RHEL 8 server on VMware Fusion with RHEL Developer creds. When I attempt to run the command:
subscription-manager register --username my_username --password ...
- 151
0
votes
0
answers
211
views
IPSec iptables rules for local service
I have a StrongSwan IPSec remote access server running on RHEL and a client all on the same local network. I have a Samba server running on the same RHEL host that I want to be available through the ...
- 1
0
votes
0
answers
357
views
Installing perl-crypt-ssleay on CentOS8
We have a hard requirement to install perl-crypt-ssleay. As per https://bugzilla.redhat.com/show_bug.cgi?id=1744782 it's no longer available for CentOS8. I tried doing cpan Crypt::SSLeay but that ...
- 377
0
votes
1
answer
360
views
Curl error (56) while trying to install Zabbix packages on RHEL 8
I followed the instructions here https://www.zabbix.com/download?zabbix=5.4&os_distribution=red_hat_enterprise_linux&os_version=8&db=mysql&ws=apache to install Zabbix 5.4 Mysql/Apache ...
- 93
0
votes
0
answers
258
views
RHEL 8 Ansible playbooks not working with FIPS enabled
I have two sets of Linux VMs in a GCP (Google cloud) environment: Debian9 and RHEL8. The RHEL8 environment is FIPS-140 enabled, due to security/compliance requirements. None of our Ansible playbooks ...
0
votes
1
answer
1k
views
/etc/resolv.conf is missing after installation of RHEL 8
I have installed RedHat Enterprise Linux 8.4 (minimal install) on my local server, and got some docker related issues.
Then I found that /etc/resolv.conf was missing.
After executing "systemctl ...
- 236
0
votes
0
answers
753
views
Not able to upgrade OpenSSL version from 1.1.1g to 1.1.1l in RHEL 8.4
I have Linux machine RHEL 8.4 with OpenSSL 1.1.1g. After running the vulnerability and penetration testing, It was found that this version of OpenSSL is not secured and recommended to upgrade OpenSSL ...
0
votes
1
answer
228
views
Rsync very slow and slows system performance after update to RHEL 8
I updated my file server VM (VMware) from CentOS 7 to RHEL 8. I doubled the CPU's and memory on the new system, but for some reason rsync's seem to bog the system down considerably. To the point where ...
0
votes
0
answers
40
views
Can it be used with OS Red Hat v8 normally?
From the following site, I do not confirm that gcsfuse has been tested on rhel-8, can it be used normally?
https://github.com/GoogleCloudPlatform/gcsfuse/blob/master/docs/installing.md#centos-and-red-...
2
votes
0
answers
287
views
How to prevent changes of GRUB_ENABLE_BLSCFG in /etc/default/grub
With Rocky Linux 8.4 (clone of RHEL 8.4) in /etc/default/grub I have GRUB_ENABLE_BLSCFG=false
A “dnf update” that included grub2-tools changed it back to GRUB_ENABLE_BLSCFG=true
Is there some way to ...
- 21
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votes
2
answers
1k
views
Kubeadm with containerd cannot use locally loaded images
I'm trying to build kubernetes with containerd in bare-metal server (RHEL8).
There's no Internet connection so I manually downloaded needed images (e.g. k8s.gcr.io/kube-scheduler:v1.22.1) and loaded ...
- 236
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votes
0
answers
179
views
Oracle's sqlcl ORA-01005: null password given; logon denied on new RHEL8 install, but not nearly identically configured old RHEL7
ON RHEL7...
$ sql bagsbx1/password@jdbc:oracle:thin:@mydbdev.dacracot.org:1521/bagdev.dacracot.org
SQLcl: Release 20.3 Production on Thu Sep 30 07:06:15 2021
Copyright (c) 1982, 2021, Oracle. All ...
- 469
1
vote
1
answer
794
views
BTRFS on RHEL8 - compiling kernel module or making userspace tools work
Context
I recently installed RHEL 8 without realizing that it no longer supports BTRFS.
Unfortunately, I have 4 disks in BTRFS RAID10. I don't have enough space on my other disks to hold the data ...
- 131
0
votes
1
answer
1k
views
How to officially install latest Docker into offline RHEL 8 x86_64 machine?
I have an offline RHEL 8 x86_64 machine that I would like to install the latest version of Docker onto, ideally without needing a RHEL package mirror. This machine will never be connected to the ...
- 101