It makes me wonder what application install turned on the RHEL subscription repo for Centos.

It makes me wonder if running the steps to detach from the subscription manager.
    https://access.redhat.com/solutions/253273

# subscription-manager remove --all
# subscription-manager unregister
# subscription-manager clean


Also maybe use 
#  subscription-manager repos --list
what the output would share. I am also curious about what has added you to the RHEL subscription management.

On Thu, Jul 15, 2021 at 11:14 AM Snyder, Alexander J via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
Don't do "subscription-manager register". As I mentioned before, delete or disable the ookla repo.

Can we connect on Zoom?

Email me directly. 

Thanks,
Alexander.

Sent from my Samsung S20+ 5G

On Thu, Jul 15, 2021, 10:43 greg zegan <gjzegan@yahoo.com> wrote:
[root@GreenRoom Downloads]# dnf clean all
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

21 files removed
[root@GreenRoom Downloads]# subscription-manager register
Username: gzegan
Password: 
Unable to verify server's identity: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
[root@GreenRoom Downloads]# sudo dnf install @postgresql:10
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

CentOS Linux 8 - AppStream                                                                     1.0 MB/s | 8.1 MB     00:07    
CentOS Linux 8 - BaseOS                                                                        1.3 MB/s | 3.6 MB     00:02    
CentOS Linux 8 - Extras                                                                        8.3 kB/s | 9.8 kB     00:01    
bintray--ookla-rhel                                                                             16  B/s |  10  B     00:00    
Errors during downloading metadata for repository 'bintray--ookla-rhel':
  - Status code: 403 for https://ookla.bintray.com/rhel/repodata/repomd.xml (IP: 34.211.43.146)
Error: Failed to download metadata for repo 'bintray--ookla-rhel': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
[root@GreenRoom Downloads]# 



On Thursday, July 15, 2021, 12:04:57 PM CDT, Snyder, Alexander J <alexander@snyderfamily.co> wrote:


Then dnf clean all, then dnf repolist

Thanks,
Alexander.

Sent from my Samsung S20+ 5G

On Thu, Jul 15, 2021, 10:03 Snyder, Alexander J <alexander@snyderfamily.co> wrote:
Either delete that repo, or at least disable it. 

In '/etc/yum.repos.d/'

Thanks,
Alexander.

Sent from my Samsung S20+ 5G

On Thu, Jul 15, 2021, 10:01 greg zegan via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
root@GreenRoom Downloads]# dnf install mariadb-server
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

bintray--ookla-rhel                                                                             16  B/s |  10  B     00:00    
Errors during downloading metadata for repository 'bintray--ookla-rhel':
  - Status code: 403 for https://ookla.bintray.com/rhel/repodata/repomd.xml (IP: 34.212.90.147)
Error: Failed to download metadata for repo 'bintray--ookla-rhel': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
[root@GreenRoom Downloads]# 


On Thursday, July 15, 2021, 11:58:27 AM CDT, Bob Elzer via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:


Just do

dnf install mariadb-server



On Thu, Jul 15, 2021, 8:37 AM greg zegan via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
Hello,
  Thanks to all to replied to my request for help.
I have tried a few new steps to resolve this and as you can see in this email I am still at a standstill.
Any and all help is appreciated.
please advise.
thanks,
Greg


----- Forwarded Message -----
From: greg zegan <gjzegan@yahoo.com>
To: Greg Zegan <gjzegan@yahoo.com>
Sent: Thursday, July 15, 2021, 11:15:10 AM EDT
Subject: linux error for my CentOS 8

sudo dnf install @mysql
[sudo] password for gzegan: 
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

bintray--ookla-rhel                                                                             16  B/s |  10  B     00:00    
Errors during downloading metadata for repository 'bintray--ookla-rhel':
  - Status code: 403 for https://ookla.bintray.com/rhel/repodata/repomd.xml (IP: 34.211.43.146)
Error: Failed to download metadata for repo 'bintray--ookla-rhel': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
[gzegan@GreenRoom ~]$ subscription-manager register
You are attempting to run "subscription-manager" which requires administrative
privileges, but more information is needed in order to do so.
Authenticating as "root"
Password: 
Password: 
Username: gzegan
Password: 
Unable to verify server's identity: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
[gzegan@GreenRoom ~]$ su -
Password: 
[root@GreenRoom ~]# subscription-manager register
Username: gzegan@GreenRoom
Password: 
Unable to verify server's identity: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
[root@GreenRoom ~]# subscription-manager refresh
This system is not yet registered. Try 'subscription-manager register --help' for more information.
[root@GreenRoom ~]# subscription-manager auto
Usage: subscription-manager MODULE-NAME [MODULE-OPTIONS] [--help]

Primary Modules: 

  attach         Attach a specified subscription to the registered system
  list           List subscription and product information for this system
  refresh        Pull the latest subscription data from the server
  register       Register this system to the Customer Portal or another subscription management service
  release        Configure which operating system release to use
  remove         Remove all or specific subscriptions from this system
  status         Show status information for this system's subscriptions and products
  unregister     Unregister this system from the Customer Portal or another subscription management service

Other Modules:   

  addons         Modify or view the addons attribute of the system purpose
  auto-attach    Set if subscriptions are attached on a schedule (default of daily)
  clean          Remove all local system and subscription data without affecting the server
  config         List, set, or remove the configuration parameters in use by this system
  environments   Display the environments available for a user
  facts          View or update the detected system information
  identity       Display the identity certificate for this system or request a new one
  import         Import certificates which were provided outside of the tool
  orgs           Display the organizations against which a user can register a system
  plugins        View and configure with 'subscription-manager plugins'
  redeem         Attempt to redeem a subscription for a preconfigured system
  repo-override  Manage custom content repository settings
  repos          List the repositories which this system is entitled to use
  role           Modify system purpose role
  service-level  Manage service levels for this system
  subscribe      Deprecated, see attach
  unsubscribe    Deprecated, see remove
  usage          Manage usage setting for this system
  version        Print version information

[root@GreenRoom ~]# subscription-manager refresh
This system is not yet registered. Try 'subscription-manager register --help' for more information.
[root@GreenRoom ~]# subscription-manager register
Username: root
Password: 
Unable to verify server's identity: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
[root@GreenRoom ~]# 


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