CIFS Server Administrator's Guide Version A.03.02.00 (5900-2578, January 2013)

• state directory (G)
This parameter specifies the directory location where the TDB files containing persistent data
is stored. The default setting for this parameter is state directory =
/var/opt/samba/locks.
• smb encrypt (S)
This parameter specifies if the remote client should use SMB encryption. Starting from Samba
3.2 version and later, SMB encryption uses the GSSAPI to encrypt and sign request and
response in a SMB protocol stream. When smb encrypt (S) is enabled, it provides a
secure method of SMB/CIFS communication, using the SMB/CIFS authentication to encrypt
and sign keys.
NOTE: The smb encrypt (S) parameter is supported only on Samba 3.2 clients. It is
not supported on Linux CIFSFS, MacOS/X, and Windows clients.
You can use the following values for the smb encrypt (S) parameter:
auto When set to auto, encryption is offered but not forced.
mandatory When set to mandatory , SMB encryption is required.
disabled When set to disabled, you cannot change the SMB encryption.
The default setting for smb encrypt (S) is smb encrypt = auto.
NOTE: The clustering (G), cluster addresses (G), ctdb timeout (G), and ctdbd
socket (G) parameters are not implemented in HP CIFS Server A.03.02.00.
The following is a list of the global parameters in smb.conf used to support the fixed size memory
map feature:
• use mmap
It is a boolean parameter that controls whether the memory map functionality is enabled or
disabled on the HP CIFS Server. The default setting for this parameter is yes.
• fixed mmap size
This integer variable specifies the fixed memory size for memory-mapped access. The default
value is 16MB. This means that a 16MB contiguous address space is reserved when the file
is first opened and no expansion is allowed. HP recommends that the value of fixed mmap
size should be set to a multiple of the TDB page size. The TDB page size is 8192 bytes.
In the most cases, you should not need to change the default values of the use mmap and fixed
mmap size parameters.
DefaultDescriptionParameter Name
NoNewasync smb echo handler
NoNewclient use spnego principal
0Newctdb locktime warn threshold
NoNewlog writeable files on exit
YesNewmulticast dns register
Newncalrpc dir
NoNewsend spnego principal
128Newsmb2 max credits
1048576Newsmb2 max read
TDB memory-mapped access for HP CIFS Server 157