[Samba] help - file permission

[yudi shiddiq]

Hey all,

I have a case that when 2 client open the same file from file server, the first client open it correctly, and the second client when open it there is not show warning that file in use.

Is there any way to set when the second client or next client open the file, the file should be "read only" so just the first client which can modify the file.

I have set like this on smb.conf 

 level2 oplocks = no
 oplocks = no

is there something miss or wrong, thx any way.