You cannot register RHEL, you get rhsm.connection.RestlibException: HTTP error (401 - Unauthorized): Service not available, please try again later

 You cannot register RHEL, you get rhsm.connection.RestlibException: HTTP error (401 - Unauthorized): Service not available, please try again later

subscription-manager register --username your_username --password 'your$password'

subscription-manager attach --auto

To re-register-

Un-register the system :

sudo subscription-manager remove --all
sudo subscription-manager unregister
sudo subscription-manager clean

Re-register the system :

sudo subscription-manager register
sudo subscription-manager refresh

Search for the Pool ID :

sudo subscription-manager list --available

Attach to subscription :

sudo subscription-manager attach --pool=<Pool-ID>

Clean YUM and cache :

sudo yum clean all
sudo rm -r /var/cache/yum

Update the resources :

sudo yum upgrade

Unable to upload PFX certificate exported from Cisco ASA firewall.

 openssl enc -base64 -d -in Cert.pfx -out converted.pfx

RDS- Kill Session from Command Line

  - Open powershell as administrator.

 - run qwinsta.exe

 - Run rwinstal.exe <session#>