[Samba] nmbd problems with secondary lo
Chris Smith
smb23 at realcomputerguy.com
Sun Oct 15 19:59:59 GMT 2006
When using the global options:
================================
interfaces = eth0, lo
bind interfaces only = Yes
hosts allow = 192.168.1. 127.
================================
and a secondary loopback address:
================================
~ # ip addr show dev lo
3: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
inet 127.0.0.2/8 brd 127.255.255.255 scope host secondary lo
================================
Nmbd will not announce that it is the domain master browser on the 192.168.1
subnet:
================================
Netbios nameserver version 3.0.23c started.
Copyright Andrew Tridgell and the Samba Team 1992-2006
[2006/10/15 15:08:43, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup MYDOMAIN on subnet
192.168.1.4
[2006/10/15 15:08:43, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup MYDOMAIN on subnet 127.0.0.2
[2006/10/15 15:08:43, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup MYDOMAIN on subnet
UNICAST_SUBNET
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(335)
become_domain_master_browser_wins:
Attempting to become domain master browser on workgroup MYDOMAIN, subnet
UNICAST_SUBNET.
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(349)
become_domain_master_browser_wins: querying WINS server from IP 127.0.0.2
for domain master browser name MYDOMAIN<1b> on workgroup MYDOMAIN
[2006/10/15 15:08:43, 0]
nmbd/nmbd_logonnames.c:become_logon_server_success(124)
become_logon_server_success: Samba is now a logon server for workgroup
MYDOMAIN on subnet UNICAST_SUBNET
[2006/10/15 15:08:43, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2
(113)
*****
Samba server MYSERVER is now a domain master browser for workgroup MYDOMAIN
on subnet UNICAST_SUBNET
*****
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(290)
become_domain_master_browser_bcast:
Attempting to become domain master browser on workgroup MYDOMAIN on subnet
192.168.1.4
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(303)
become_domain_master_browser_bcast: querying subnet 192.168.1.4 for domain
master browser on workgroup MYDOMAIN
[2006/10/15 15:08:43, 0] libsmb/nmblib.c:send_udp(791)
Packet send failed to 192.168.1.255(137) ERRNO=Invalid argument
[2006/10/15 15:08:43, 0] nmbd/nmbd_packets.c:send_netbios_packet(163)
send_netbios_packet: send_packet() to IP 192.168.1.255 port 137 failed
[2006/10/15 15:08:43, 0] nmbd/nmbd_namequery.c:query_name(245)
query_name: Failed to send packet trying to query name MYDOMAIN<1b>
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(290)
become_domain_master_browser_bcast:
Attempting to become domain master browser on workgroup MYDOMAIN on subnet
127.0.0.2
[2006/10/15 15:08:43, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(303)
become_domain_master_browser_bcast: querying subnet 127.0.0.2 for domain
master browser on workgroup MYDOMAIN
[2006/10/15 15:08:47, 0]
nmbd/nmbd_logonnames.c:become_logon_server_success(124)
become_logon_server_success: Samba is now a logon server for workgroup
MYDOMAIN on subnet 192.168.1.4
[2006/10/15 15:08:47, 0]
nmbd/nmbd_logonnames.c:become_logon_server_success(124)
become_logon_server_success: Samba is now a logon server for workgroup
MYDOMAIN on subnet 127.0.0.2
[2006/10/15 15:08:51, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2
(113)
*****
Samba server MYSERVER is now a domain master browser for workgroup MYDOMAIN
on subnet 127.0.0.2
*****
[2006/10/15 15:09:06, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2
(396)
*****
Samba name server MYSERVER is now a local master browser for workgroup
MYDOMAIN on subnet 192.168.1.4
*****
[2006/10/15 15:09:06, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2
(396)
*****
Samba name server MYSERVER is now a local master browser for workgroup
MYDOMAIN on subnet 127.0.0.2
*****
================================
Notice in the above section the errors:
-----------------------------------------
[2006/10/15 15:08:43, 0] libsmb/nmblib.c:send_udp(791)
Packet send failed to 192.168.1.255(137) ERRNO=Invalid argument
[2006/10/15 15:08:43, 0] nmbd/nmbd_packets.c:send_netbios_packet(163)
send_netbios_packet: send_packet() to IP 192.168.1.255 port 137 failed
[2006/10/15 15:08:43, 0] nmbd/nmbd_namequery.c:query_name(245)
query_name: Failed to send packet trying to query name MYDOMAIN<1b>
-----------------------------------------
And that:
-----------------------------------------
Samba server MYSERVER is now a domain master browser for workgroup MYDOMAIN
on subnet 192.168.1.4
-----------------------------------------
Is never logged.
================================
Without the secondary lo nmbd acts normally:
================================
Netbios nameserver version 3.0.23c started.
Copyright Andrew Tridgell and the Samba Team 1992-2006
[2006/10/15 15:09:56, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup MYDOMAIN on subnet
192.168.1.4
[2006/10/15 15:09:56, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup MYDOMAIN on subnet
UNICAST_SUBNET
[2006/10/15 15:09:56, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(335)
become_domain_master_browser_wins:
Attempting to become domain master browser on workgroup MYDOMAIN, subnet
UNICAST_SUBNET.
[2006/10/15 15:09:56, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(349)
become_domain_master_browser_wins: querying WINS server from IP 127.0.0.1
for domain master browser name MYDOMAIN<1b> on workgroup MYDOMAIN
[2006/10/15 15:09:56, 0]
nmbd/nmbd_logonnames.c:become_logon_server_success(124)
become_logon_server_success: Samba is now a logon server for workgroup
MYDOMAIN on subnet UNICAST_SUBNET
[2006/10/15 15:09:56, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2
(113)
*****
Samba server MYSERVER is now a domain master browser for workgroup MYDOMAIN
on subnet UNICAST_SUBNET
*****
[2006/10/15 15:09:56, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(290)
become_domain_master_browser_bcast:
Attempting to become domain master browser on workgroup MYDOMAIN on subnet
192.168.1.4
[2006/10/15 15:09:56, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(303)
become_domain_master_browser_bcast: querying subnet 192.168.1.4 for domain
master browser on workgroup MYDOMAIN
[2006/10/15 15:10:00, 0]
nmbd/nmbd_logonnames.c:become_logon_server_success(124)
become_logon_server_success: Samba is now a logon server for workgroup
MYDOMAIN on subnet 192.168.1.4
[2006/10/15 15:10:04, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2
(113)
*****
Samba server MYSERVER is now a domain master browser for workgroup MYDOMAIN
on subnet 192.168.1.4
*****
[2006/10/15 15:10:19, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2
(396)
*****
Samba name server MYSERVER is now a local master browser for workgroup
MYDOMAIN on subnet 192.168.1.4
*****
================================
Workarounds appear to include:
================================
1)changing "lo" to "127.0.0.1" in interfaces:
-----------------------------------------
interfaces = eth0, 127.0.0.1
bind interfaces only = Yes
hosts allow = 192.168.1. 127.
-----------------------------------------
2)disable "bind interfaces only"
-----------------------------------------
interfaces = eth0, lo
bind interfaces only = No
hosts allow = 192.168.1. 127.
-----------------------------------------
of course the above isn't very helpful if you have other interfaces you don't
want nmbd to bind to.
-----------------------------------------
3)don't use "ip" to create the secondary "lo" but instead use the older less
funtional "ifconfig" which will only define the new address by creating an
alias name such as "lo:0".
================================
On the surface this seems like improper operation and that nmbd should be able
to deal with secondary addresses.
Chris
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