An operation in Plesk fails: Unable to lookup SID for name

Vincent Lauton

Updated December 05, 2024 19:12

Plesk for Windows kb: technical

Applicable to:

Plesk for Windows

Symptoms

An operation in Plesk fails with the error message:

PLESK_ERROR: Unable to lookup SID for name IUSR_example.com: (1332) No mapping between account names and security IDs was done.(Error code 1)
A Plesk backup task fails with the error message:

PLESK_ERROR: Unable to back up files from C:\Inetpub\vhosts\example.com owned by system user. Error: Failed to create archive: Unknown error

PLESK_ERROR: Warning: Subscription "example.com"
Unable to back up files from C:\Inetpub\vhosts\example.com owned by system user. Error: Failed to create archive: Repository error: Archiver error: unable to pack C:/Inetpub/vhosts\example.com. Unable to logon system user 'jdoe' (domain: '') to impersonate. Using password: yes. Details: The user name or password is incorrect..
Migration finishes with the following warning:

PLESK_WARN: Can not deploy web-content of domain example.comWarning:ForeignMigratorCore.MigratorException: System.Exception: Get flags failed of user (IUSR_example.com): (2221) The user name could not be found.
When changing permissions in Plesk File Manager, the operation fails with the following error message:

PLESK_ERROR: PleskUtilException
filemng failed: The user name could not be found. (Error code 2221) at NetUserGetInfo((null), john) at (UserInformation::getUserInformation line 187) at getUserInformation(john)(UserInformation::getUserInformation line 193) at execute "D:\Program Files (x86)\Parallels\Plesk\admin\bin\filemng" john --permissions --list-common "--file=D:\Web\vhosts\example.com\httpdocs\wordpress\wp-content" "--accounts=fsgF93A.tmp"(RunTime::RunAsUser::run line 223) (Error code 1)

Cause

The user mentioned in the error message does not exist in the local system.

Resolution

Connect to the server via RDP
Start a command prompt as an Administrator
Apply the solution for all or several domains:

For all domains

Run the following commands to fix all domains:

C:\> "%plesk_cli%/repair" --repair-all-webspaces-system-users

C:\> "%plesk_cli%/repair" --regenerate-web-server-users-password

C:\> "%plesk_dir%\bin\repair.exe" --repair-all-webspaces-security

C:\> "%plesk_cli%/repair" --synchronize-impersonation-storage

For one or several domains

If one or several domains are affected, use the following commands:

C:\> "%plesk_cli%/repair" --repair-webspace-system-users -webspace-name example.com

C:\> "%plesk_cli%/repair" --repair-webspace-security -webspace-name example.com

C:\> "%plesk_cli%/repair" --synchronize-impersonation-storage