[Samba] Standalone Server with Wins -- Password Not Required onWin/XP

Greg Sims greg at headingup.net
Sun Jan 13 16:22:33 GMT 2008

I tried adding "guest ok = no" in the [homes] section below and got the same

On first access from a WinXP Client, the system requests a userid and
password.  If you provide a userid and password, the system will Not allow
you to view the shares.  The only way (that I've found) to get passed this
is to provide the userid Only -- this allows access to a window that
contains the shares. Clicking on one of the share icons provides access to
the shares without ever entering a password.  This is the security issue we
need help fixing.

I'm looking forward to some feedback on this.  Thanks!  Greg

-----Original Message-----

Hi There,

I created a standalone server on CentOS 5.1 with samba at 25b on an x86_64
system. The shares defined below are available to the windows xp clients on
the 10.43.10.x/24 subnet.  Samba also provides win server support to this

We are having problems with password protection associated with the shares.
The first access to the samba server requests a userid -- this likely allows
samba to understand which home share should be displayed.  At this point,
the client can access both the 'homes' share and the 'orr' share without
ever entering a password -- this is a security issue for us.

We need to figure out how to configure samba to enforce userid & password
protection prior to allowing access to a share. Below is a copy of the
smb.conf file that we are using for testing.

	# workgroup and server identification
	workgroup = ORRRANCH
	server string =
	netbios name = ORR00

	interfaces = lo
	bind interfaces only = yes
	hosts allow = 10.43.10. 127.0.0.

	# logs split per machine; max 50KB per log file, then rotate
	log file = /var/log/samba/%m.log
	max log size = 50

	# default user security, encrypted passwords and tdbsam
	security = user	
	encrypt passwords = yes
	passdb backend = tdbsam

	# allow samba to be the domain master browser if possible
	local master = yes
	os level = 33
	preferred master = yes
	domain master = yes

	# samba is a wins server for the system; use wins first
	wins support =yes
	name resolve order = wins hosts bcast
	comment = Home Directories
	browseable = no
	writable = yes
	valid users = %S
	path = /samba/home/%S

	comment = Orr Ranch Share
	path = /samba/orr
	valid users = greg catherine sarah brandon
	guest ok = no
	writable = yes
	printable = no
	create mask = 0765

Each of the 'valid users' have ids on the system and have used smbpasswd to
create samba passwords. Nsswitch.conf has been modified to add 'wins' to the
'hosts' line to assist with names resolution.

Any assistance would be appreciated!!  Thanks, Greg

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