From time now (at least 1.0.134 and up to 1.1.27), folders created with btsync does not get correct permission on Linux. All new folders get permission like this : user running btsync : rwx groups : rx can you fix this and honor the inheritance of ACL. For example, with 2 hosts ( A and B ), the created folder's on A : ACL are OK (of course) and are these : Host A : ------------------------------------- # file: btshare/test # owner: roms # group: admins # flags: -s- user::rwx group::rwx group:btsync:rwx group:admins:rwx group:g_test:rwx mask::rwx other::--- default:user::rwx default:group::rwx default:group:btsync:rwx default:group:admins:rwx default:group:g_test:rwx default:mask::rwx default:other::--- ------------------------------------- On host B the created folder's have this permission (this ACL is not correct and BtSync did not honor the inheritence) : ------------------------------------- # file: btshare/test # owner: btsync # group: admins user::rwx group::rwx #effective:r-x group:btsync:rwx #effective:r-x group:admins:rwx #effective:r-x group:g_test:rwx #effective:r-x mask::r-x other::--- default:user::rwx default:group::rwx default:group:btsync:rwx default:group:admins:rwx default:group:g_test:rwx default:mask::rwx default:other::--- ------------------------------------- Expected result : ------------------------------------- # file: btshare/test # owner: btsync # group: admins user::rwx group::rwx group:btsync:rwx group:admins:rwx group:g_test:rwx mask::rwx other::--- default:user::rwx default:group::rwx default:group:btsync:rwx default:group:admins:rwx default:group:g_test:rwx default:mask::rwx default:other::--- ------------------------------------- Like you can see, group mode of folders are not inherited. For files creation, ACL are like this : On host A : ------------------------------------- # file: btshare/test/bgrun.wsf # owner: roms # group: admins user::rwx group::rwx group:btsync:rwx group:admins:rwx group:g_test:rwx mask::rwx other::--- ------------------------------------- On host B : ------------------------------------- # file: btshare/test/bgrun.wsf # owner: btsync # group: btsync user::rwx group::rwx group:btsync:rwx group:admins:rwx group:g_test:rwx mask::rwx other::r-- ------------------------------------- Expected result on Host B : ------------------------------------- # file: btshare/test/bgrun.wsf # owner: btsync # group: btsync user::rwx group::rwx group:btsync:rwx group:admins:rwx group:g_test:rwx mask::rwx other::--- ------------------------------------- Some post said to try umask but that does not work (I have tried umask 0000 / 000 / etc ).