- Plesk Obsidian for Windows
Horde webmail or Site Preview does not work for all domains in Plesk:
CONFIG_TEXT: Service Unavailable HTTP Error 503. The service is unavailable.
Below error can be found in Event Viewer > System:
CONFIG_TEXT: The identity of application pool sitepreview is invalid. The user name or password that is specified for the identity may be incorrect, or the user may not have batch logon rights. If the identity is not corrected, the application pool will be disabled when the application pool receives its first request. If batch logon rights are causing the problem, the identity in the IIS configuration store must be changed after rights have been granted before Windows Process Activation Service (WAS) can retry the logon. If the identity remains invalid after the first request for the application pool is processed, the application pool will be disabled. The data field contains the error number.
and in Event Viewer > Security:
CONFIG_TEXT: Account For Which Logon Failed:
Security ID: NULL SID
Account Name: psaadm
Account Domain: SOMEGRP
Failure Reason: The user has not been granted the requested logon type at this machine.
Missing IIS_IUSRS group in User Rights Assignment.
Login to the server via RDP
Open Local Security Policy:
Navigate to Security Settings > Local Policies > User Rights Assignment
Add IIS_IUSRS group to Log on as a batch job.
Go to IIS > Application Pools and start stopped pools