Laurenz, Dirk wrote:
Hello everybody,
i have two questions concerning samba.
1st Topic - file times
NTFS has three file times for each file,
the create time, the change time and the
access time. The create time will never be
modified, the change time will be changed
every time you save a file, the access time
will be changed every time you access (read)
a file. If i access a file on a samba share,
the access time will be modified correctly,
but if i resave a file, the create time is
also changed although i would expect that only
the change time will be modified. I found some
parameters concerning file times, but none
of them changes the behaviour. I used the following
parameters:
dos filetimes = yes
dos filetime resolution = yes
Has anyone a suggestion, which parameters must be
set, to get the NTFS behaviour? B.t.w., the underlying
filesystem is an ext3 with acl,user_xattr mount options.
It's more like an ext3 question...
NTFS has create, modify, and access timestamps whereas
ext3 has change, modify, and access ones.
According to my experiments on NTFS:
'create' really never changed.
'modify' changes whenever file is saved.
'access' changes whenever property of the file (Permissions or its name)
get changed.
reading file does not change any timestamp at least when I read a text
file with Notepad.exe.
According to my experiments on ext3:
'change' changes whenever property of the file (access mask, owner) get
changed or file is saved.
'modify' changes whenever file is saved.
'access' changes whenever content of the file accessed.
There's no timestamp keeping creation of the file.
ext3's 'access' get mapped into NTFS 'access'
ext3's 'modify' get mapped into NTFS 'modify' and 'create'.
I don't see any way for Samba to simulate NTFS timestamps unless there's
some extra attributes which can be used on ext3 for timestamps.
2nd Topic - two instances on one server
I have successfully running two instances on one server.
Both are members in an NT4 Domain and every thing works
right, but local username resolution and groupmappings.
Normal startup order is:
- Instance A
- Instance B
Setting some groupmappings works fine for Instance B.
if i restart Instance A but not B, the groupmappings/usermappings
from Instance A get effective. And thats very bad
If i restart afterwards Instance B, everything is fine.
I guess, this is a winbind issue. The problem is, I think,
the last started winbindd wins...
Unfortunately, 'idmap backend' understand only LDAP as a backend choice
and if you don't set it mapping get saved in winbindd_idmap.tdb cache
file which is common for both servers.
You can switch to 'ldap' idmap method and then specify different 'idmap
suffix' for each of your servers.
Another solution will be to patch Samba so that it accepts 'tdb' with a
file name as an argument for 'idmap backend' parameter.
Hope it helps,
Igor
Here are my conf's (INSTANCE A and B)
INSTANCE A
##
[global]
name resolve order = lmhosts, wins, bcast
private dir = /samba/ages001/conf/private/
idmap gid = 1-4
debug uid = yes
host msdfs = yes
wtmp directory = /samba/ages001/conf/wtmp
lock directory = /samba/ages001/conf/locks/
netbios name = ages001
printing = none
idmap uid = 1-4
workgroup = XX
os level = 20
socket address = 192.168.84.34
security = domain
winbind separator = +
log file = /samba/ages001/conf/log/%m.log
load printers = yes
smb passwd file = /samba/ages001/conf/private/smbpasswd
loglevel = 10
wins server = 193.29.124.81 193.29.122.75
pid directory = /samba/ages001/conf/pids/
interfaces = 192.168.84.34/24
username map = /samba/ages001/conf/private/smbusers
domain master = No
encrypt passwords = yes
template shell = /bin/bash
winbind enum users = yes
password server = SRVA SRVB SRVC
template homedir = /samba/ages001/data/winbindjail
winbind enum groups = yes
preferred master = no
unix charset = UTF-8
utmp directory = /samba/ages001/conf/utmp
winbind cache time = 300
socket options = SO_KEEPALIVE TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT
[dfsroot]
comment = XX
msdfs root = yes
path= /samba/ages001/data/dfsroot/dfsroot_a
hide files = /lost+found/
hide dot files = yes
read only = yes
###
INSTANCE B
###
[global]
private dir =
