Just some umask notes (may expand over time and knowledge).
For files:
umask oct oct dec oct perms 666 - 027 (23) = 640 rw-r----- 666 - 002 (2) = 664 rw-rw-r-- 666 - 111 (72) = 555 r-xr-xr-x 666 - 006 (6) = 660 rw-rw---- 666 - 022 (28) = 644 rw-r--r-- |
For directories:
umask oct oct dec oct perms 777 - 027 (23) = 750 rwxr-x--- 777 - 002 (2) = 775 rwxrwxr-x 777 - 111 (72) = 666 rw-rw-rw- 777 - 006 (6) = 771 rwxrwx--x 777 - 022 (28) = 755 rwxr-xr-x |
42u 42u 42u rwx rwx rwx |
We might use the oct umask value for a specific user, e.g.
umask 022 |
We might use the dec umask value for sshd_config, e.g.
Match User sftptest ForceCommand internal-sftp -u 28 |
