Tecadmin published a tutorial about how to set all directories to 755 and all files to 644.
How to Set all directories to 755 And all files to 644
Security always comes first. It is recommended to keep your files secure on your systems. No one liked that anyone misused their hard work due to silly mistakes. Many of fresher set file permissions to 777 on production servers to avoid any permission issue. But they are doing big mistakes by setting world writable permissions.
How to Set all directories to 755 And all files to 644 – TecAdmin
