Why MD Core is Not Reachable?

Issue Summary: MetaDefender Core may become unreachable due to nginx failing to start properly after a restart or shutdown.

Error Logs: In nginx_error.log, you may see the following entry:

[error] 10904#14248: OpenEvent("Global\ngx_reopen_3536") failed (2: The system cannot find the file specified)

Root Cause: This issue occurs when nginx fails to clean up its temporary files during a shutdown or restart. On subsequent startups, these leftover files can interfere with nginx’s ability to launch, preventing MD Core from becoming reachable.

Remediation Steps:

1. Stop the Service:

• Open Services (services.msc) and stop OPSWAT MetaDefender Core.

2. Clean Up Temporary Files:

• Navigate to: C:\Windows\Temp\ometascan

• Delete all files inside this directory. Files you may find include:

• ometascan-nginx.pid

• nginx.conf

• Other temporary files

3. Restart the Service:

• Start the OPSWAT MetaDefender Core service again.

Additional Notes:

• Ensure you have administrator privileges to delete the files.