[Samba] IPC$ entries not deleted from connections.tdb?

[Yannick Bergeron]

Back to this problem

Here a proof of it:


1. smbd version 3.0.11 started

yaberge2 at sda6 ==> p smbd
    root 13820 20662   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
    root 20662     1   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
yaberge2 at sda6 ==> /usr/local/samba/bin/smbstatus

Samba version 3.0.11
PID     Username      Group         Machine
-------------------------------------------------------------------

Service      pid     machine       Connected at
-------------------------------------------------------

No locked files

tdb> 1
pid    =20662   cnum   =        -1  name   =[]
pid    =20662   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =13820   cnum   =        -1  name   =[smbd lpq backend]
pid    =13820   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969

tdb> n
fetch failed


2. Map network drive from Win2k

yaberge2 at sda6 ==> p smbd
    root 13820 20662   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
    root 20662     1   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
    root 21224 20662   0 08:07:59      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
yaberge2 at sda6 ==> /usr/local/samba/bin/smbstatus

Samba version 3.0.11
PID     Username      Group         Machine
-------------------------------------------------------------------
21224   ffausse       ffausse       intelwt1     (9.54.4.28)

Service      pid     machine       Connected at
-------------------------------------------------------
IPC$         21224   intelwt1      Wed Apr 20 08:07:59 2005
dfs          21224   intelwt1      Wed Apr 20 08:07:59 2005

No locked files

tdb> 1
pid    =21222   cnum   =         1  name   =[IPC$]
pid    =21222   cnum   =         1  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21224   cnum   =         2  name   =[IPC$]
pid    =21224   cnum   =         2  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21224   cnum   =         1  name   =[dfs]
pid    =21224   cnum   =         1  name   =[dfs]
uid    = 1388   addr   =[9.54.4.28]
gid    = 1661   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21224   cnum   =        -1  name   =[]
pid    =21224   cnum   =        -1  name   =[]
uid    =    0   addr   =[9.54.4.28]
gid    =    0   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21218   cnum   =         1  name   =[IPC$]
pid    =21218   cnum   =         1  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =20662   cnum   =        -1  name   =[]
pid    =20662   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =13820   cnum   =        -1  name   =[smbd lpq backend]
pid    =13820   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969

tdb> n
fetch failed


3. Disconnecting the network drive

yaberge2 at sda6 ==> p smbd
    root 13820 20662   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
    root 20662     1   0 08:05:39      -  0:00 /usr/local/samba/sbin/smbd -D 
-s/usr/local/samba/lib/smb.conf
yaberge2 at sda6 ==> /usr/local/samba/bin/smbstatus

Samba version 3.0.11
PID     Username      Group         Machine
-------------------------------------------------------------------

Service      pid     machine       Connected at
-------------------------------------------------------

No locked files

tdb> 1
pid    =21222   cnum   =         1  name   =[IPC$]
pid    =21222   cnum   =         1  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21224   cnum   =         2  name   =[IPC$]
pid    =21224   cnum   =         2  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =21218   cnum   =         1  name   =[IPC$]
pid    =21218   cnum   =         1  name   =[IPC$]
uid    =2147483647   addr   =[9.54.4.28]
gid    =2147483647   machine=[intelwt1]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =20662   cnum   =        -1  name   =[]
pid    =20662   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969

tdb> n
pid    =13820   cnum   =        -1  name   =[smbd lpq backend]
pid    =13820   cnum   =        -1  name   =[]
uid    =    0   addr   =[0.0.0.0]
gid    =    0   machine=[smbd]
start  = Wed Dec 31 19:00:00 1969


4. Any connection remaining from my workstation?

yaberge2 at sda6 ==> netstat -an |grep "9.54.4.28"

5. Conclusion

No connection between the samba server and my workstation, but still 3 
entries in connections.tdb.
With 3000 users, the file will increase in size pretty fast and we would 
need an interruption to restart samba an reset the tdb files :/

I would like to know if anybody could reproduce this problem