Prev: Cross subnet browsing + OpenVPN
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From: Daniel Müller on 6 Jul 2010 09:10
What about your openvpn config?
The tun net must have an entry in your hosts allow.
If you work with briding the remote network has to be the same subnet as the
local!?
Bridging is the best way to have a remote net integrated.
I have one logging in form Berlin on my Samba-Domain.

Daniel


-----------------------------------------------
EDV Daniel Müller

Leitung EDV
Tropenklinik Paul-Lechler-Krankenhaus
Paul-Lechler-Str. 24
72076 Tübingen

Tel.: 07071/206-463, Fax: 07071/206-499
eMail: mueller(a)tropenklinik.de
Internet: www.tropenklinik.de
-----------------------------------------------

-----Ursprüngliche Nachricht-----
Von: samba-bounces(a)lists.samba.org [mailto:samba-bounces(a)lists.samba.org] Im
Auftrag von Julian Pilfold-Bagwell
Gesendet: Dienstag, 6. Juli 2010 14:12
An: samba(a)lists.samba.org
Betreff: [Samba] Cross subnet browsing + OpenVPN

Hi All,

I'm having a problem with cross subnet browsing and name resolution across
an openvpn tunnel. i've found quite a few people who've had the same on
mail lists but none of their fixes have worked. The spec of the setups at
both ends of the tunnel are as follows:

OS - CentOS 5.5
Samba Version 3.5.4
OpenVPN Version 2.0.9-1

Each server is configured in gateway mode with two NICS, one to the lan
and the other to a modem/router. The first machine, HEADOFFICE, has an
internal IP address of
192.168.0.1 and an external of 192.168.10.4. The second machine, REMOTE1,
has an internal address of 192.168.1.254 and an external of 192.168.20.4.

On openVPN, I have configured client to client and routes and iroutes to
allow machines on each network to ping machines at the other end as well
as the server IP's.
So far so good and I can ping any machine on either subnet from anywhere
and get a reply. The servers are configured as Samba servers with the
HEADOFFICE machine working as a PDC, DMC and WINS server and the REMOTE1
machine configured as a BDC and WINS proxy. In order to maintain logon
facilities in the event of broadband failure,
I have replicated the LDAP server from HEADOFFICE to REMOTE1 and updates
and password changes propogate successfully from one site to the other.

If I try to access HEADOFFICE from REMOTE1 and REMOTE1's subnet it works
perfectly but trying to access REMOTE1 from HEADOFFICE and its subnet
fails on name resolution while
entering \\192.168.1.254\ brings up Windows Explorer and a list of shares.

I've included the remote browse entries in smb.conf on the PDC and have
WINS Proxying set up on the BDC but I can't get it to push REMOTE1's IP
back to the WINS server.
Port scanning the internal IP of each machine from the oher end of the
tunnel returns a full set of open ports for the services I'm using but no
IP.

If anyone can spot what I'm doing wrong I'd be grateful.

Thanks.

################ smb.conf - HEADOFFICE ################
### Included 2nd subnet for second remote site in browse sync

[ global]
workgroup = NEWDOM
netbios name = HEADOFFICE
security = user
enable privileges = yes
interfaces = 192.168.0.1 127.0.0.1
# hosts allow = 192.168.0.0/255.255.255.0 192.168.1.0/255.255.255.0
194.168.2.0/255.255.255.0 127.0.0.1
remote announce = 192.168.2.255/NEWDOM 192.168.1.255/NEWDOM
remote browse sync = 192.168.1.255 192.168.2.255
wins support = yes
name resolve order = wins hosts bcast
username map = /etc/samba/smbusers
server string = Samba Server %v
encrypt passwords = Yes
ldap ssl = no
unix password sync = yes
ldap passwd sync = no
passwd program = /usr/sbin/smbldap-passwd -u "%u"
passwd chat = "Changing *\nNew password*" %n\n "*Retype new
password*" %n\n"

# public = yes
# browseable = yes
# lm announce = yes
# browse list = yes
# auto services = yes

log level = 3
syslog = 0
log file = /var/log/samba/log.%U
max log size = 100000
time server = Yes
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
mangling method = hash2
Dos charset = 850
Unix charset = ISO8859-1

local master = Yes
domain logons = Yes
domain master = Yes
os level = 65
preferred master = Yes
wins support = yes

passdb backend = ldapsam:ldap://127.0.0.1
ldap admin dn = cn=Manager,dc=newdom,dc=ldm
ldap suffix = dc=newdom,dc=ldm
ldap group suffix = ou=Groups
ldap user suffix = ou=Users
ldap machine suffix = ou=Computers
ldap idmap suffix = ou=Idmap

add user script = /usr/sbin/smbldap-useradd -m "%u"
ldap delete dn = Yes
delete user script = /usr/sbin/smbldap-userdel "%u"
add machine script = /usr/sbin/smbldap-useradd -t 0 -w "%u"
add group script = /usr/sbin/smbldap-groupadd -p "%g"
#delete group script = /usr/sbin/smbldap-groupdel "%g"
add user to group script = /usr/sbin/smbldap-groupmod -m "%u" "%g"
delete user from group script = /usr/sbin/smbldap-groupmod -x "%u"
"%g"
set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'

[shared]
comment = shared directory
path = /dat
browseable = yes
read only = no
create mask = 0660
directory mask = 0770


############ smb.conf - REMOTE1 #############################

[global]
workgroup = NEWDOM
netbios name = REMOTE1
security = user
enable privileges = yes
interfaces = 192.168.1.254 127.0.0.1
# hosts allow = 192.168.0.0/24 192.168.1.0/24 192.168.2.0/24
10.8.0.0/24 127.0.0.1
wins server = 192.168.0.1
wins proxy = yes
username map = /etc/samba/smbusers
name resolve order = wins bcast hosts
server string = Samba Server %v
encrypt passwords = Yes
ldap ssl = no
unix password sync = yes
ldap passwd sync = no
passwd program = /usr/sbin/smbldap-passwd -u "%u"
passwd chat = "Changing *\nNew password*" %n\n "*Retype new
password*" %n\n"

log level = 0
syslog = 0
log file = /var/log/samba/log.%U
max log size = 100000
time server = Yes
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
mangling method = hash2
Dos charset = 850
Unix charset = ISO8859-1

local master = Yes
domain logons = Yes
domain master = no
os level = 40
preferred master = no

passdb backend = ldapsam:ldap://127.0.0.1
ldap admin dn = cn=Manager,dc=newdom,dc=ldm
ldap suffix = dc=newdom,dc=ldm
ldap group suffix = ou=Groups
ldap user suffix = ou=Users
ldap machine suffix = ou=Computers
ldap idmap suffix = ou=Idmap

add user script = /usr/sbin/smbldap-useradd -m "%u"
ldap delete dn = Yes
delete user script = /usr/sbin/smbldap-userdel "%u"
add machine script = /usr/sbin/smbldap-useradd -t 0 -w "%u"
add group script = /usr/sbin/smbldap-groupadd -p "%g"
delete group script = /usr/sbin/smbldap-groupdel "%g"
add user to group script = /usr/sbin/smbldap-groupmod -m "%u" "%g"
delete user from group script = /usr/sbin/smbldap-groupmod -x "%u"
"%g"
set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'

[test]
comment = test share
path = /test
browseable = yes


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