There are many situations where we need to register the host/server to RHN server manually, due to network issues, bad certificate/authentication or time difference on the host during installation.
Manual RHN registration is quite easy
- Check /etc/sysconfig/rhn/systemid file already exist, if YES delete the file
# rm /etc/sysconfig/rhn/systemid
- Register with the update agent using rhn_register
# rhn_register
Other useful RHN client commands
Sync configuration files from RHN serverrhncfg-client get <filename>
#or
rhncfg-client get #for all files.
To view the differences between the config files deployed on the system and those stored by RHN, issue the command:
rhncfg-client diff
To quickly determine if client configuration files are different than those associated with it via RHN, issue the command:
rhncfg-client verify
To View config channels
rhncfg-client channels
Gineesh Madapparambath
Gineesh Madapparambath is the founder of techbeatly. He is the co-author of The Kubernetes Bible, Second Edition and the author of Ansible for Real Life Automation. He has worked as a Systems Engineer, Automation Specialist, and content author. His primary focus is on Ansible Automation, Containerisation (OpenShift & Kubernetes), and Infrastructure as Code (Terraform). (Read more: iamgini.com)
