Red Hat Enterprise Linux version 7 is a Linux distribution sold by Red Hat, Inc. for the enterprise market. It is used for both servers and desktops. Although the binaries are not freely available, the sources are, and so there are numerous projects which provide compatible rebuilds of RHEL, such as CentOS and Scientific Linux.
Questions tagged [rhel7]
464 questions
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Do RHEL 7 manuals apply to CentOS 7?
My startup of only 17 employees can benefit from a RHEL-like server OS without the RHEL cost. We've inherited a full copy of RHEL 7 documentation, and as the IT Admin, I'm curious if those manuals apply nearly verbatim to CentOS 7?
The CentOS.org…
Some Dude
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pvs not showing correct available space
Recently installed RHEL7 on a PowerEdge R320 with the following drives:
2 x 300GB sas 15k
2 x 1TB sas 7.2k
When setting up LVM during installation I purposefully left over several hundred GB free in case I needed to expand later.
I'm now seeing…
a coder
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Check if RHEL certs have been updated
I have a sample .pem file placed in /etc/pki/ca-trust/source/anchors, and I have run update-ca-trust, but I'm not sure how I can check if the command actually worked. I tried to cat /etc/pki/tls/certs/ca-bundle.crt for the contents of my sample .pem…
jackwise
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Possible to set the specific order of a resource in a Pacemaker group?
Given the Pacemaker/Corosync resource configuration described below, is it possible to add a resource in a specific position within the resource group? The configuration is CentOS 7.2 using the RHEL-supplied clustering add-ons.
This is a NFS server…
ewwhite
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How can I set resource stickiness in pacemaker?
I'm playing around with Red Hat's High Availability Add-On, everything seems working fine however I have one issue:
Whenever I reboot one of nodes 7test2, resource group g1 migrates to 7test1 (by design) and then when 7test2 comes back online…
alexus
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Cannot start sshd service: Failed to start openssh.service: Unit not found
On a virtual rhel 7.4 I'm getting a weird error when trying to start the sshd service.
Failed to start openssh.service: Unit not found
In fact, I get the same error when trying anything on sshd - enable, status or stop
I did try to restart the…
Cat Hariss
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iptables redirect rule for udp not working
I'm trying to create redirection for syslog UDP traffic from incoming IP:PORT to other port on same linux box. Purpose for that is to route traffic comming to different IP addresses on server to services running on higher port numbers depending on…
mrbeat
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How do I enable IPv6 in RHEL 7.4 on Amazon EC2
Amazon provides instructions on how to enable IPv6 on RHEL 7 and Centos 7: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-migrate-ipv6.html#ipv6-dhcpv6-rhel
These instructions work on RHEL 7-7.3 and Centos 7-7.3, but do not work on RHEL…
Aram Hăvărneanu
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Need help converting init.d service scripts to systemd (CentOS)
I have spent several days on an issue that's incredibly frustrating and I'm straight out of options.
I am currently using a CentOS 6.8 server at work for our website. CentOS 6 (Enterprise Linux 6 or EL6) uses the older init.d model for startup…
Danny Forche
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votes
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MySQL rejects login attempts when password is stored in options file
First:
We're running MySQL 5.7.13.
OS is Red Hat Enterprise Linux 7.2.
The problem was first discovered using Python/Connector 2.1.3
System is not domain joined (yet.)
All MySQL packages installed from MySQL's own yum repositories!
The scenario: …
Robutt
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votes
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Installing rpm-package to systemd?
I am new to systemd, and trying to get an in-house app packaged as rpm, to install on systemd host (RHEL7).
The rpm tries to place the systemd .service-file: myapp.service
into: /etc/systemd/system
But that generates an error, I dont…
Rop
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How to stop iSCSI server?
Is it possible to stop listening on iSCSI server port 3260 without deleting the portal from the configuration? I tried to stop all services I know, but it's still running.
[root@okvmh1 ~]# systemctl stop iscsid
[root@okvmh1 ~]# systemctl stop…
basin
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Recovery from i8042 no controller found during boot?
I have a set of identical hardware, Dell R210s. To replicate their configuration, I use a method to image /dev/sda from a working machine, and then apply that image to a new machine. It has been accomplished many times without a hitch.
As root on…
dacracot
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RHEL on HP DL380 Gen9 boots to blank screen
I have an HP DL380 Gen9 server that I just installed RHEL 7.0 on. Yesterday I was able to log in and setup a few tools and users. Overnight I turned the server off. This morning when I boot the server gets through initialization and gets to what…
Joe W
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Multiple Domain realmd/sssd Configuration on RHEL7?
I've configured our RHEL7 instance to support Active Directory login integration by using the documentation HERE. This describes using the "realm" command to configure the "sssd" service allowing for AD Integration.
I've used the following commands…
Caesar Kabalan
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