Questions tagged [redhat]
Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite. Please also consider whether or not the more specific RHEL5 or 6 tags might be appropriate as well.
3,283
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Unable to delete local user in RHEL [closed]
I want to delete user test.
cat /etc/passwd | grep test gives no output
id test shows user id as output
userdel test gives output, userdel: user does not exist.
Whether user exist or not, if existing ...
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0
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17
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How to sucessfully import an .ova vm exported from ovirt/kvm (Red Hat OS)?
So, I was given an .ova file. This is exported from a server using a combination of KVM/QEMU and ovirt technologie - the server runs RedHat and I want to import this .ova file into vmware or ...
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106
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What to set $DISPLAY environment variable to when su to another user
I'm not that au fait with Linux, let alone things like X and display/window managers.
I am trying to run the GUI installer for Oracle Enterprise Manager, but it is complaining about the value for the ...
- 1,743
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207
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AH02565: Certificate and private key from <cert> and <private key> do not match
I'm trying to update some expired SSL certificates internally on some Ubuntu and Redhat servers. I have an internal certificate authority for this (ADCS). These are the steps I'm taking:
Generate CSR ...
- 21
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45
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Multiuser SMB Mount on Red Hat: Users Seeing Each Other's Folders Despite Separate cifscreds
We are attempting to mount a Windows file system on a Red Hat 9 machine. This Windows file system contains hundreds of accounts with finely tuned access rights.
We are trying to implement the ...
- 101
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16
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ansible-galaxy install not working on RedHat 9
I am currently trying to install the community.general collection for ansible, which is fairly straight forward as I did it on countless systems including RedHat 8. But to my surprise, I tried install ...
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27
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Configure a server to act as an internet gateway [duplicate]
I have two virtual servers hosted in Hetzner Cloud. The first server (let's call it Access Server) has a Public IP assigned and has internet access. The second server does not has a public IP assigned ...
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145
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Qualys: Weak SSL/TLS Key Exchange
In a Qualys vulnerability report on a RHEL 8.6 server where a CA endevor bridge for git is installed, it detects the following vulnerability:
QID 38863 - Weak SSL/TLS Key Exchange
Offering as a ...
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41
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What is the equivalent of /etc/apache2/envvars in EL-based systems?
In Debian-based systems, it's possible to source a bash script in /etc/apache2/envvars to dynamically set an environment variable. Here is an example:
Create a file (/etc/profile.d/myenv.sh) with the ...
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1
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87
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sed + delete all comment lines and when line match specific word
I created this sed in order to delete the comment lines lines from fstab ( comment can ne with begin of space or TAB etc )
sed '/^[[:blank:]]*#/d' /etc/fstab
in my case I want to add also the ...
- 559
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1
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149
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http_code 0 with Redhat php curl request
I can use lynx to access a website from the server fine. When I try to access the same website with a php curl instruction I get http_code=>0 from curl_getinfo($ch); The same php code on another ...
- 101
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1
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93
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Oracle Linux 8 to 9 in place upgrade with Leapp fails with XFS internal log size 8192 too large, must be less than 4789
Can someone please help?
2023-11-14 09:25:01.774 DEBUG PID: 308200 leapp.workflow.InterimPreparation.dnf_dry_run: External command has finished:
['/bin/dd', 'if=/dev/zero', 'of=/var/lib/leapp/...
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1
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50
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NGINX reverse proxy not working as expected
I'm trying to deploy an app through docker containers and reverse proxy it to my destination endpoint.
My docker compose file looks like this:
version: '3.4'
services:
monitor.api:
image: ${...
- 101
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17
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Resetting logical Direct-Access Error || RHEL 7.x
We have an error for the LVM resetting device which has been impacting our Linux server during this period.
kernel: hpsa 0000:02:00.0: scsi 0:1:0:1: resetting logical Direct-Access HP ...
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1
vote
1
answer
48
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ProFTPd : SFTP "get" command is denied (when "put" works ok)
I have this issue on RHEL 8.6 with proftpd 1.3.8a
I have a proftpd server setup, with a user called IFTPTEST. In its home, this user has 2 directories, in/ and out/.
My goal is : I put files in the ...
- 21
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41
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Forward SNMPTRAP to specific community doesn't work
CONTEXT
Forward SNMP trap received by snmptrapd service to specific Community.
You can see my lab scheme :
MyLabScheme
VERSIONS USED
Servers : RHEL 8.7
SNMP : NET-SNMP version 5.8
SNMP Version : 2c
...
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41
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How can I give permissions to linux user to execute chown and chmod commands for specific directory?
I have a linux server RHEL 8. This server has a linux user called 'john'. This user doesn't have permissions to apply sudo as root.
I wish to give to john user permissions to execute chmod and chown ...
- 165
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92
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NetworkManager not starting and dbus not working correctly after reboot - AlmaLinux9 (RHEL)
I have a Server with AlmaLinux9 installed which worked perfectly and i rebooted the server often and nothing happend. But recently i rebooted the server and now it get's no internet connection anymore....
- 11
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42
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HDFS + Taking long time to copy files from hdfs to local folder
we have Hadoop cluster that used HDFS filesystem
the problem is about copying file from HDFS to local folder that take huge time
for example usually copy file with size of 3G takes few second , but ...
- 559
2
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1
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287
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How to mount an old disk back to the RHEL VM without reboot?
Background
I have added a second hard disk (500GB) to this RHEL VM. And then format, created volume group (storerhel2) and logical volume (store) for it.
I then mounted it to a newly created directory ...
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53
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When I install nginx on a new CentOS machine, the default nginx page does not load
I have installed nginx on the machine using yum repository. The firewall ports 80 and 443 have been opened and when I try to access the default nginx configuration in the browser using server IP ...
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1
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89
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How to access RHEL non-UBI content when the host is an EC2 instance
The Red Hat Universal Base Image (UBI) FAQ claims that
8. Will applications built on UBI have access to the same content as images built on a non-UBI base image?
Yes, but accessing non-UBI content ...
- 338
1
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2
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307
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SELinux blocking nginx -t
I'm setting up Rocky Linux and I've run into this error:
sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission ...
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29
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Running podman on RH 8.8 continues to give "no read access to runc binary" error
On a stig'd Redhat 8.8 machine I cannot get podman to run hello world or build a simple app and continue to get a no read access error
Running commmand
root>podman run hello
Produces
root>Error: ...
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38
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How to prevent ethernet issues after command line shutdown in CentOS7?
I'm running into a frustrating issue with a system running CentOS7. There's an Intel NIC (Intel Corporation Ethernet Connection (2) I219-LM (rev31)) which, when working, provides a 1000Mb/s connection....
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1
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92
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Firewalld is not working,. port open but I can't reach from other server
I got a wildfly 9 server on REHEL 7 with ports http=4070. Then I executed the following instructions:
[root@linux]# firewall-cmd --add-port=4070/tcp --permanent
Warning: ALREADY_ENABLED: 4070:tcp
...
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1
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60
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CRI-O Pulling Image From AWS ECR: Failed to pull image, authentication required
Unable to pull an image from AWS ECR with the following error from Kubernetes using CRI-O as Container Runtime Interface.
Failed to pull image "<aws_account_id>.dkr.ecr.<region-name>....
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1
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63
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Unable to Connect To Repo Server On Local Network
I currently have two VMs:
node1 (192.168.55.201)
repos (192.168.55.203)
I'm trying to set up node1 so that it can retrieve packages from the repo server. I currently have the AppStream repo, and ...
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0
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227
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package containerd.io >= 1.6.4 needed by docker-ce but package containerd.io already with version 1.6.9-3.1
we want to install docker packages on our RHEL 8.4 server (this is off line installation since machine not connected to network)
so we download the following rpm's from the site - https://download....
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1
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1
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306
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a stop job is running for /dev/mapper/name (xxxs / no limit
running rhel 8.8, all of sudden the systems will not reboot properly. The console show the message
a stop job is running for /dev/mapper/name (xxxs / no limit)
This device is a luks container ...
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526
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Unable to Install Kubelet, Kubeadm Because It Requires Later Version of Cri-Tools
-1
I am taking a Coursera class for CKA Prep and as part of that we are provisioning an instance of a node on Amazon EC2, installing the container runtime (which is containerd in this case) and now I ...
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26
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Installing PHP 7.3 on RHEL 7 - Angular/PHP files don't process
I've been tasked with setting up an old application on a RHEL 7 server. It has an Angular front-end (I'm unsure of the version, but it's old) with a PHP backend. However, in the browser console I can ...
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0
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66
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Create Azure Red hat template with custom LVM partitions
I want to prepare Azure template for Red Hat 8 servers with packer and I'm facing problem with setting custom LVM partitions.
For example, I want separate /var/tmp, /var/log etc.
I deployed some VMs ...
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1
answer
30
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Map dev notation to logical volume name
I need to figure out what dm-2 or dm-0, etc. is (this notation is found in dmesg notices, sysstat reports, etc.) and lsblk is not installed
I find lvdisplay output a little bit confusing.
Can someone ...
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30
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initiatorname.iscsi is overwritten
I use RHEL 8.8 on my machines.
I run the following command:
echo InitiatorName=$(/sbin/iscsi-iname) > /etc/iscsi/initiatorname.iscsi
It sets correctly the name. But after some time file is set to ...
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0
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34
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Azure RHEL 8 VM - Apache 2.4 Package Availabilty
I've got a RHEL 8.8 instance in Azure. This instance will replace our current RHEL 7.9 instance running Apache 2.4.34. The RHEL 7.9 instance has the following httpd package installed: httpd24-httpd. ...
- 688
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120
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Networkmanager nmtui static IP/ external IP / public IP address
For long time try to setup my external IP address on centos7,rocky on with "Networkmanager" but its working only with systemd-networkd.
Found some solution and use systemd-networkd but now ...
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232
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Installing find command in a docker container running RHEL 8
I am running a docker container of image:
confluentinc/confluent-local:7.4.1
It is based on Redhat 8.8
How do I install find command in the container?
I tried running:
$ yum update
and got this ...
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131
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How to install samba client on ubi9 docker image?
I'm building a docker image for a quarkus app using the Red Hat ubi9 openjdk17 image.
I am trying to install samba and samba-client using microdnf install samba-client but I'm getting this error:
...
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106
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Can't manage to update a subscribed RHEL Server 6.0
So I'm running a Virtual RHEL Server 6.0 as a lab server (Hosted on Hyper-V) to remember and practice. I managed to RPM install subscription-manager package since RHN Classic is no longer up.
To get ...
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0
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57
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SSSD LDAP CONFIGURATION
I am trying to configure ldap on port 636 on a redhat server. Right now, when I try the following command :
netstat -antup | grep -i 636
I get
tcp 0 132 IP_ADDRESS_1:40670 XX.XX.XX.XX:...
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0
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70
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OpenSSL issue with Rancher/Kubernetes cluster on RHEL 8
So we are working on setting up a big Rancher/Kubernetes cluster on a bunch of RHEL 8 servers. We have everything installed and have Rancher running on a 3 node cluster behind a load balancer. The ...
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1
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94
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Does VM machine can replace physical machine,
We have 254 Physical servers when all machines are DELL servers R740.
servers are part of Hadoop cluster. most of them are holding HDFS filesystem and data node & node manager services, part of ...
- 559
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2
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225
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Postfix smtpd_sender_restrictions with logical AND
I am using postfix, I need to configure sender based restrictions so nobody that is not authenticated & not part of mynetworks can send mail through this server,
this is my smptd sender ...
- 101
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0
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58
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Apache Basic authentication based on AuthUserFile is ignored, when mod_auth_radius.c is enabled
I hope you can help me with my problem.
I initially had a vhost config with Basic Authentication with "AuthUserFile" which works fine.
Now I wanted to use Radius for certain sites and ...
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1
answer
409
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Cross domain authentication with transitive forest trust for linux
I have two domains -- one for dev and one for corp.
I can join a Windows machine to the dev domain and login as a corp user because of the transitive forest trust. I can join a Linux machine to the ...
0
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0
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84
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What is the difference between "Ignore" and "Disabled" of network setup during RHEL 9 installation?
I am setting up RHEL 9 server and want to disable IPv6 because my network does not support IPv6 routing.
When setting up connection, I have 2 options "Ignore" or "Disabled" and ...
- 1
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0
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49
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Red Hat Booth Ticket Issue
I am following this guide to implement booth ticket. I have two clusters with 2 nodes in each and 1 arbitrator node on centos 7 hosted on google vm.
The prerequisite for having booth ticket is both ...
- 51
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0
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53
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what is the preffered configuration of NIC for Kafka - team or bond configuration?
We have 22 Kafka brokers physical machines (DELL HW) that should be finally installed as production Kafka cluster. when OS should be RHEL 7.9 version
we are not sure about - TEAM vs BOND for Kafka ...
- 559
4
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3
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1k
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What are the options to monitoring page cache usage?
In essence the Page Cache is a part of Virtual File System (VFS) which main purpose, as you can guess, is improving IO latency of read and write operations.
In computing, a page cache, sometimes also ...
- 559