[OpenIndiana-discuss] CIFS server on oi_148

[Martin Frost]

What about restricting who can login to a given share?  I have that
capabiity under Samba on Linux, as demonstrated below in the smb.conf
snippet.

Is anyone use CIFS/OI with an smb.conf file?

Martin

 > Date: Tue, 3 Jan 2012 23:39:05 +0100
 > From: Robin Axelsson <gu99roax at student.chalmers.se>
 > 
 > I guess you have two ways to control  user access to different shares, 
 > one is the Unix style and the other is through ACLs. From my experience 
 > the kernel-CIFS server has sometimes ignored the Unix/Posix permission 
 > bits that I set. For example even if I say "chmod 444" a file I can 
 > still delete the file over the network, I don't remember the specifics 
 > now but some things worked whereas other did not. But I think you can 
 > have different shares for different users by chowning the different file 
 > systems to different users.
 > 
 > Then I started working with the ACL based permission bits and I was more 
 > successful with that (I never did anything serious with it, I just tried 
 > it out and saw that it works). To work with ACLs you need to use the 
 > /bin/ls, /bin/chmod etc and look at the man pages specifically for 
 > '/bin/ls' for more information on ACLs. My guess is that access control 
 > using ACLs is what you are looking for and it is a bit different from 
 > the way you administrate samba configurations, at least so I heard as 
 > I've never configured a samba server for outbound file sharing.
 > 
 > Managing ACLs on Solaris/OpenSolaris have been reportedly a difficult 
 > thing to do and get around but maybe things have become easier in the 
 > development process of OpenIndiana. After all it has been quite a while 
 > since I looked into ACLs on OpenSolaris.
 > 
 > NFS is beyond my knowledge but I assume that NFS is Linux/Unix only. As 
 > far as I know there is no support for NFS sharing (or client access 
 > thereto) on Windows systems. I know that there used to be a Unix for 
 > Windows package somewhere that Microsoft published (SFU3.5) but I think 
 > it is only for old 32-bit operating systems.
 > 
 > Robin.
 > 
 > On 2011-12-27 08:20, Martin Frost wrote:
 > > We have Windows machines that need to access ZFS filesystems under
 > > oi_148 that are also exported via NFS to Linux machines.
 > >
 > > I need to be able to specify which filesystems each Windows user can
 > > see.  Below is a sample of what I do on a Linux system to restrict
 > > Samba access for a given share to certain users.  Can this be done
 > > under OI/CIFS?
 > >
 > >      [fin]
 > >         comment = Fin
 > >         path = /home/fin
 > >         valid users = fin,user1,user2,user3
 > >         create mask = 0770
 > >         directory mask = 0770
 > >         force group = fin
 > >
 > > I'm hoping to use the in-kernel CIFS server, as I assume it provides
 > > better performance, but I'm not clear about the configuration
 > > differences between the Samba server and the in-kernel CIFS server
 > > under OI.
 > >
 > > I ran:
 > >
 > >     zfs create -o casesensitivity=mixed -o nbmand=on thepool/test1
 > >     zfs set sharenfs='rw=remotehostfqdn,root=remotehostfqdn thepool/test1
 > >     zfs set sharesmb=on thepool/test1
 > >
 > > and that made the test1 filesystem mountable via 'smb:/server/thepool'
 > > from Finder on a Mac (so I assume it will work from Windows too).
 > >
 > > I noticed that the first time I set sharesmb on, /usr/lib/smbsrv/smbd
 > > got started up.  Is this the non-kernel Samba server??
 > >
 > > There is no smb.conf file.  There is a /etc/samba/smb.conf-example,
 > > but nothing like smb.conf shows up in 'strings /usr/lib/smbsrv/smbd'.
 > > And 'man smbd' doesn't mention any configuration file.  I do see a man
 > > page for smb.conf' -- can I use an smb.conf file with the in-kernel
 > > CIFS server?  If so, would it live in /etc/samba?
 > >
 > >
 > > I've added this to /etc/pam.conf so that users get Samba passwords:
 > >
 > >    other password required pam_smb_passwd.so.1 nowarn
 > >
 > > Since the OI machine is only a fileserver, I don't want the users to
 > > ssh into the machine, so unless there's a better way, I plan to lock
 > > the Samba users' passwords in /etc/shadow.
 > >
 > > Thanks for your help.
 > >
 > > Martin