[Samba] Lingering IPC$ connections

[Alfredo Ramos]

John, are you telling me that it is normal behavior for two smbd
connections from different users to share the same process id?

Maybe I don't understand how samba manages connections, but this behavior
hardly seems normal. I mean, I've been running samba for at least four
years and this behavior just started with this release.

Please, can you elaborate a little more on why this is expected behavior?
I would assume that after a period of inactivity the samba server should
close any non-active connections. But even if it does not close the
connection, it should certainly not inherit the process id from a previous
login session.

Al.

---------------------------------------------------------------------------------
                                           | Alfredo Ramos
This space available for rent.             | Educational Technology
Get your product moving. Advertise here!   | Rice University.
                                           | Email: ralf at is.rice.edu
---------------------------------------------------------------------------------

On Wed, 9 Apr 2003, John H Terpstra wrote:

> On Wed, 9 Apr 2003, Alfredo Ramos wrote:
>
> > Yes of course, they are. One user logs off, and another one logs in. That
> > is normal. What is not normal is the mixing of loggins and pids.
>
> This is expected behaviour. It is the MS Windows client machine that does
> NOT close the connection to the IPC$ share.
>
> >
> > Very strange!
>
> Not at all. The IPC$ share can be connected to as either the current user
> or anonymously (null user). This connection is used to obtain information
> about the SMB server, like shares, access ability, etc.
>
> - John T.
>
> >
> > Thanks for the reply John.
> >
> > Al.
> >
> > ---------------------------------------------------------------------------------
> >                                            | Alfredo Ramos
> > This space available for rent.             | Educational Technology
> > Get your product moving. Advertise here!   | Rice University.
> >                                            | Email: ralf at is.rice.edu
> > ---------------------------------------------------------------------------------
> >
> > On Wed, 9 Apr 2003, John H Terpstra wrote:
> >
> > > Alfredo,
> > >
> > > The connections that appear to have the same pid - they are from multiple
> > > logons on the same machine are they not? Please confirm.
> > >
> > > - John T.
> > >
> > >
> > > On Wed, 9 Apr 2003, Alfredo Ramos wrote:
> > >
> > > > I'm running the latest samba release (2.2.8a), and everything seems to
> > > > be running fine. Except for something that does not look quite right.
> > > >
> > > > Connections to the IPC$ share are being left behind by samba once the
> > > > user has logged off. And what's even more troubling is that the pid
> > > > associated with the lingering IPC$ connection is picked up by the next
> > > > smbd process, and then you have one pid associated with more that one
> > > > smbd connection. Smbstatus as well as ps report the same weird status.
> > > >
> > > > Here's a sample output from both:
> > > >
> > > > /usr/site/samba-2.2.8a/bin/smbstatus
> > > > Samba version 2.2.8a
> > > >
> > > > Service      uid      gid      pid     machine
> > > > ----------------------------------------------
> > > >
> > > > riffraff     riffraff student  11775  mudd104 Wed Apr  9 14:04:26 2003
> > > > IPC$         leana7   student  11775  mudd104 Wed Apr  9 11:42:10 2003
> > > > IPC$         ralf     rstaff   11526  mudd110 Wed Apr  9 10:13:14 2003
> > > > IPC$         ksgarcia student  11526  mudd110 Wed Apr  9 11:09:28 2003
> > > > IPC$         rakowitz student  12026  mudd111 Wed Apr  9 13:29:10 2003
> > > >
> > > >
> > > > ps -ef | grep smbd
> > > > root 11526   170  smbd -s/usr/site/samba-2.2.8a/lib/smb.conf-NEW
> > > > root 12026   170  smbd -s/usr/site/samba-2.2.8a/lib/smb.conf-NEW
> > > > riffraff 11775   170 smbd -s/usr/site/samba-2.2.8a/lib/smb.conf-NEW
> > > >
> > > >
> > > > Please, can somebody explain this?????
> > > >
> > > > I'm running on a Solaris 8 box and the clients are all Win2K SP2.
> > > >
> > > > Thank you.
> > > >
> > > > Al
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > > --
> > > John H Terpstra
> > > Email: jht at samba.org
> > > --
> > > To unsubscribe from this list go to the following URL and read the
> > > instructions:  http://lists.samba.org/mailman/listinfo/samba
> > >
> >
>
> --
> John H Terpstra
> Email: jht at samba.org
>