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 = 10000-40000 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 = 10000-40000 workgroup = XXXXXX 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 = XXXXXX 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 = /samba/ages002/conf/private name resolve order = lmhosts, wins, bcast idmap gid = 10000-20000 wtmp directory = /samba/ages002/conf/wtmp lock directory = /samba/ages002/conf/locks netbios name = AGES002 writeable = yes idmap uid = 10000-20000 workgroup = XXXXX os level = 20 socket address = 192.168.84.35 security = domain winbind separator = +
log level = 1 log file = /samba/ages002/conf/log/%m.log smb passwd file = /samba/ages002/conf/private/smbpasswd load printers = No map hidden = yes socket options = SO_SNDBUF=4096 SO_KEEPALIVE TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT pid directory = /samba/ages002/conf/pids wins server = 193.29.124.81, 193.29.122.75 username map = /samba/ages002/conf/private/smbusers interfaces = 192.168.84.35/255.255.255.0 domain master = No encrypt passwords = yes template shell = /bin/bash password server = SRVA SRVB SRVC winbind nested groups = Yes template homedir = /samba/ages002/data/tmp/winbindjail preferred master = no unix charset = UTF8 utmp directory = /samba/ages002/conf/utmp winbind enum users = no winbind enum groups = no
[GES_BT] browseable = yes inherit permissions = yes writable = yes admin users = XXXXXX+GESIS_ADM hide unreadable = yes path = /samba/ages002/data/GES_BT hide files = /lost+found/ hide dot files = yes hide special files = yes inherit acls = yes dos filetimes = yes dos filetime resolution = yes
[....]
###################################################################### Mit freundlichem Gruß,
Dirk Laurenz Systems Engineer
Fujitsu Siemens Computers
Sales Central Europe Deutschland Professional Service Organisation Nord / Ost
Hildesheimer Strasse 25 30880 Laatzen Germany
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Telefax: +49 (511) 84 89 - 25 18 08
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http://www.fujitsu-siemens.de/rl/servicesupport/itdienstleistungen/competencecenter.html
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