to clarify - Unity does support the different file locking that are part of CIFS/SMB and NFSv3/v4 - but as designed in the protocol the client needs to request the locks - not the Unity as a server
Hello,  We're building a library of files that will be searchable and accessible through a web interface; we need to be able to lock files from being overwritten or deleted.  Is that something we can do via Unity (file system)?  The library will be built by us, we're just wondering if the file-locking is something Unity is capable of. Thanks
Unity File Locking