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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 ...

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20 views

Vulnerability scanning in CentOS/Fedora with OpenSCAP

I am trying to work with OSCAP and I want to do vulnerabilities assessment in centos 7, Fedora and RHEL. I found it for RHEL in OpenSCAP site but my question is, Is it possible to do it in CentOS or ...
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1answer
33 views

How to share VPN and DHCP server across multiple hosts?

I need to set up a small computer network for what is effectively a satellite office for a business. The small network consists of several workstations and a server. The server machine has two ...
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8 views

kdump not generating vmcore log

i've a virtualbox Red Hat 7, I installed kdump and configured all necessary kdump.conf: #raw /dev/vg/lv_kdump #ext4 /dev/vg/lv_kdump #ext4 LABEL=/boot #ext4 UUID=03138356-5e61-4ab3-b58e-27507ac41937 ...
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19 views

Upgraded httpd 2.2 to 2.4, server generated directory index forbidden by options directive

I keep getting the 500 internal error when going to my website's IP address. I haven't set up a domain name for it yet. Upon checking for error's on the apache error log at /var/log/httpd/error_log I ...
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0answers
19 views

httpd 2.4 - Address already in use: AH00072: make_sock: could not bind to address error for any listening port

My RHEL 7.5 has httpd 2.4 installed on it and it serves static pages from /var/www/html properly. However, it is not redirecting to my Django app and I have been troubleshooting the issue. On ...
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28 views

Updating firmware on an IBM x3850 M2 CentOS

So I recently got my hands on 2 IBM X3850 M2's and thought i should do a firmware update on everything, so I went to the IBM "Fix central" and took notice of that only RHEL or Windows server seemed to ...
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10 views

How to configure internet gateway for NAT'd VM on KVM?

I'm running the Redhat 7 hypervisor, running KVM. The RHEL hypervisor has internet access. The VM is configured with NAT, not as Bridged, and does not have internet access. How would I configure the ...
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32 views

Disable Java in LibreOffice

I am working on deploying LibreOffice to RHEL7 workstations, and I need a way to disable LibreOffice's Java settings globally. I refer to Tools -> Options -> LibreOffice/Advanced -> "Use a ...
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31 views

cron.daily executing, but LogRotate command not running

I'm a bit of a Linux noob, I'm using a RHEL system, and have been trying to set up a logrotate. I've added the following to /etc/cron.daily/logrotate #!/bin/sh whoami > /logs/whoami.txt /usr/...
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6 views

using project folders from host os to guest os in vagrant

I have recently installed vagrant and red hat in windows 8 environment. I want to use my projects in windows drive in redhat running on vagrant machines. Is there a mechanism to copy paste or access ...
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8 views

how to find out yum pack installed last two month [duplicate]

my question is about yum, is it able to list the software, which is installed by yum in linux two month ago with detail date info? I have tried yum info, but it didn't show the date, thanks
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7 views

udevadm info missing device attributes

I'm seeing the standard RHEL virtio-blk udev rule is not firing sometimes and not creating the /dev/disk/by-id symlink. Having run udevadm info -a /dev/vd* I can see that ATTR{serial} is populated. ...
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1answer
7 views

nrpe unit not found when services try to start on linux server

Am trying to run nrpe services in linux server but got this error nrpe unit not found. Please help on this issue
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2answers
40 views

IUS not pulling latest PHP packages

I have a RHEL 7 64 bit machine that that IUS installed on it. We are trying to get the latest hotfix version of php 7.1. The version I am trying to download is 7.1.22, and we are on 7.1.21. I have ...
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0answers
22 views

Expend root partition without LVM

I'm trying to setup an Oracle Cloud VM instance using Oracle's provided templates. Their root mount doesn't use LVM so it's being a pain to try to get this expanded since I can't use a boot CD to fix ...
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1answer
24 views

Gitlab uninstall issue

I am using Redhat linux in my web server and I had git repositories manually setup in one ip called 192.168.0.100. This was installed under a user called git. I have been accessing git by calling like:...
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1answer
32 views

Red Hat 7.5 yum reposync error

I am trying to updating my packages by using the command, reposync which download from the RHN (Red Hat Network). So I create a local mirror of the latest update for Red Hat Enterprise Linux 5, 7.5. ...
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1answer
44 views

Virtual machines networking not working

My BMC had virtualization disabled when I installed RHEL6.9. Does that mean the OS installation has dropped all the virtualization packages like libguestfs, etc? if so then what is the best solution ...
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1answer
41 views

Authentication with SSSD

I'm currently working on a project in my internship at an organisation, and it is honestly a bit of challenge, so I hope you guys can help me out. Background: The organisation I'm working in has a ...
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2answers
46 views

Remove --add-forward-port rule in firewall-cmd

Some time ago I added below rule for local port forwarding firewall-cmd --permanent --add-forward-port=port=80:proto=tcp:toport=3000 How can I remove this rule now?
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55 views

DLM and CLVMD not starting on pacemaker redhat HA

I was trying to configure an active-active cluster w/ gfs2, I followed the following instructions: pcs property set no-quorum-policy=freeze pcs resource create dlm ocf:pacemaker:controld op monitor ...
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0answers
24 views

Redhat No IGMP response

I'm setting up my server to ingest a multicast. The server will initiate the request and can join the multicast for about 2:30-3:30 min. After that, it gets dropped from the multicast group due to no ...
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1answer
111 views

How to bypass systemd “start request repeated too quickly”

I'm playing around with CHEF in a CentOS7 VM, and the script failed due to the issue: systemd[1]: start request repeated too quickly for fail2ban.service I know this is configurable in systemd, but ...
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10 views

ICMP packet size over 372 are dropped on bond0

i have a target server running on rhel7.4 with kernel 3.10.0-693.11.6.el7 with bond0 and subinterface vlan2001 with MTU 9000 when i ping from a different server which is in a different network with ...
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0answers
43 views

Postfix transport based on source IP address (with or without relayhost)

We have Postfix relay server running on centOS 7.4. Restricted source IP address by mynetworks cidr mynetworks = cidr:/etc/postfix/allowlist.cidr Now, I like to configure, some of the source ip ...
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1answer
115 views

System logs are empty (/var/log/messages; /var/log/secure; etc)

I found that rsyslog stopped writing on logs (messages; secure; cron;etc) System information: NAME="Red Hat Enterprise Linux Server" VERSION="7.4 (Maipo)" ID="rhel" ID_LIKE="fedora" VARIANT="Server" ...
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0answers
43 views

Apache 2.4 won't start when SSLEngine on directive enabled on two Virtual Hosts

I have very strange issue with Apache today. This is RedHat 7.5 new server and we have same set up working just fine on the other RedHat server. Here is the deal: All I have is two SSL Virtual Hosts, ...
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1answer
54 views

HyperV Linux EFI VHDX migration is missing EFI in the boot options

I have a HyperV 2016 cluster of n machine running on W2k16. I've duplicated the VHDX of a RHEL 7.5 (Gen2) VM that runs with this boot order (and secure boot disabled): After creating a new VM with ...
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1answer
29 views

RedHat: MultipathPackage Compatibility

I have an old RedHat5 server I can't upgrade the OS and new san XtremeI/O storage EMC recommended to install device-mapper-multipath 0.4.9-72 as a native multipath package.But the only available ...
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1answer
27 views

Send mail via cronjob/php, RHEL

I am trying to send an e-mail by a cronjob using a php script. The script itself works fine when executed in a shell. When it is run by cron, the attachment is missing. OS is RHEL 7 Cron entry : 30 ...
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2answers
75 views

Can we install a Kubernetes cluster on RHEL atomic hosts?

We want to install an on premise Kubernetes cluster. We have a license for RHEL and RHEL atomic. I know Red Hat has its own Kubernetes based platform called OpenShift. OpenShift can be installed on ...
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14 views

INotify: Treatment of bulk moves vs. individual files

Our environment is making use of inotify events for the purpose of triggering file transfers, but with our lab being a closed environment it is difficult to replicate inbound streaming file writes. ...
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1answer
29 views

mod_proxy for apache/redhat not working

We have the following scenario: First APP: http://example.com:8090/access/app1 Second APP: http://example.com:8090/access/app2 We want to configure apache mod_proxy to assign: http://app1.example....
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0answers
17 views

How to reset permission for the whole file system? [duplicate]

I made a typo chmod -R 777 / is there a solution of the only one backup data and reinstall the server.
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0answers
44 views

Apache test page, instead of Django app showing up after server is started

I have an app on EC2 that I start up by ssh'ing into the VM, activating the env and then running manage.py runserver. The Django app starts without any errors on 127.0.0.1:8000. The server files ...
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1answer
18 views

How to create a raw device as a file in the filesystem?

I have heard there is a way to create a file in a filesystem which will can be configured as a raw device? Does anyone know the commands for doing that?
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79 views

NDJBDNS setup on Centos - Dig @127.0.0.1 times out

I'm in the process of replacing an old Gentoo DNS setup (running DJBDNS) with a CentOS 7 one, and have decided to go with NDJBDNS since it appears to be the most modern implementation of TinyDNS. ...
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0answers
69 views

yum --disableexcludes=main not working in RHEL 7.5?

On my RHEL 7.5 host, I've excluded kernel updates on /etc/yum.conf When I attempt a yum update with --disableexcludes=main, the exclude is not disabled. Only --disableexcludes=all seems to work. ...
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1answer
49 views

Docker EE 2.0 - Supported OSes

I am unable to figure out what are the supported RHEL versions for Docker EE 2.0. This article (Compatibility matrix) states that RHEL versions 7.3-7.5 are supported. However the article - Docker ...
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0answers
54 views

SFTP chroot jail on Centos system with Active Directory integration

I am trying to set up a SFTP chroot jail environment on one of our Centos, which is integrated with Active Directory for user authentication (set up with Realmd/oddjob). I would like to chroot each ...
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0answers
52 views

Failed to start FreeIPA pki-tomcatd Service

Not able to start pki-tomcatd on FreeIPA server Command Output [root@ipa01]# ipactl status Directory Service: RUNNING krb5kdc Service: RUNNING kadmin Service: RUNNING httpd Service: RUNNING ipa-...
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1answer
36 views

Force a specific user or application to user a specific java version

Bear with me, I'm new to sysadmin stuff. We have a server running RHEL 6 (2.6.32). We have a Pentaho application that interacts with the server as a pentaho user, and we have a team user under whose ...
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0answers
19 views

yum update errata up to specific version

I need to update a server up to a specific errata version. I know that the below command will always update to the latest version. yum --security update-minimal I need a way to specify up to what ...
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0answers
29 views

Using keepalived in two subnets - Or alternative

I want to create a failover cluster with two redhat machines using keepalived. Unfortunately the two members of the cluster will be hosted on different locations with different IP-subnets (10.1.x.x on ...
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1answer
333 views

unkown cause for systemd failure state - systemd-logind cannot start org.freedesktop.systemd1 after server reboot

Basic information Red Hat Enterprise Linux Server release 7.4 (Maipo) component: systemd Hardware: x86_64 Linux [root@scvberpat01 log]# uname -r 3.10.0-693.21.1.el7.x86_64 General description ...
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1answer
194 views

what is the difference between /etc/issue.net and /etc/issue

What are their purpose as they have the same content ? [me@myserver ~]$ cat /etc/issue Red Hat Enterprise Linux Server release 6.10 (Santiago) Kernel \r on an \m [me@myserver ~]$ cat /etc/issue.net ...
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1answer
46 views

Do we need to reboot RHEL Servers, after making changes for control-alt-delete override?

We are planning on disabling the RHEL Server reboot triggered by control-alt-delete. for which we are going to follow the Steps mentioned here. However, that link does not say whether we need to ...
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0answers
166 views

Unable to install plugins on Jenkins server

When I try to install any plugin on my Jenkins server, I get below error in the browser. I can see the list of Available plugins. Error occurs when I select any plugin and click on Install without ...
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0answers
74 views

Is the configuration I want possible? Problems with SSH to Redhat server using google authentication 2fa

I'm attempting to configure two factor authentication when using SSH to connect to my redhat ec2 instance. I would like to configure it like this: If user has both ssh key and google auth set up, ...
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3answers
89 views

hp dl380p gen 8 bios

Sorry if this is a stupid question, but I'm not use to enterprise hardware. I have the job of patching one of our servers while our main person is out. I patched it, but the server wouldn't boot ...