Run the following command to delete: sudo find . -name “*.ico” -type f -delete
FTP
Proper File and Folder Permission for WordPress
Check whether your wordpress installation have correct file and folder permission for proper functioning. Improper file permission may lead to security threats also.
How to Create Multiple SFTP User in VPS
Create multiple SFTP user in a VPS for accessing respective website folders. Access is limited to the respective folders only. Use FileZilla to access remote Host.