Can't connect to SAMBA server from Android
by the98 from LinuxQuestions.org on (#52SGS)
Hi everybody.
I'm having trouble with my current Debian Sid machine, and I'm pretty sure the problem comes from my installation, and it's not a bug or something.
Basically, there are some shared folders in my laptop, via SAMBA. I have no problems accessing this shares from another Debian installation (stable, in this case), but Android has issues accessing the folders. Now, bare with my, because you're going to point out that that's on Android, but wait.
I use two Android apps that let me browse my shares: VLC and Amaze File Explorer.
Amaze fails to connect to my computer every time. Actually, it does nothing. It's not even logged in SAMBA's log.
VLC is able to access the shares, but mostly the ones where guests are allowed. Those are accessible pretty easily. The ones that need authentication usually fail. But if you struggle long enough, you may get through and authenticate successfully. The log gets some input when VLC tries to authenticate (see below)
As I mentioned, I also have another Debian stable installation. I set up SAMBA in that installation, and the app that is never able to connect to my PC (Amaze), does it without any hesitation to this PC. You may think that there's a bug in Unstable's SAMBA, but I don't think that's what going on. I've been having this problem for years.
I suspect that there are some files or packages that are bothering a proper connection to the server. I've purged SAMBA and all related files, but that hasn't made any difference.
I should also mention that smbtree command shows nothing on my computer. And I can't help to think that those problems are related.
Here there are some config files and logs:
/etc/samba/smb.conf
Code:#
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
#
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
# commented-out examples in this file.
# - When such options are commented with ";", the proposed setting
# differs from the default Samba behaviour
# - When commented with "#", the proposed setting is the default
# behaviour of Samba but the option is considered important
# enough to be mentioned here
#
# NOTE: Whenever you modify this file you should run the command
# "testparm" to check that you have not made any basic syntactic
# errors.
#======================= Global Settings =======================
[global]
## Browsing/Identification ###
# Change this to the workgroup/NT-domain name your Samba server will part of
workgroup = WORKGROUP
#### Networking ####
# The specific set of interfaces / networks to bind to
# This can be either the interface name or an IP address/netmask;
# interface names are normally preferred
; interfaces = 127.0.0.0/8 eth0
# Only bind to the named interfaces and/or networks; you must use the
# 'interfaces' option above to use this.
# It is recommended that you enable this feature if your Samba machine is
# not protected by a firewall or is a firewall itself. However, this
# option cannot handle dynamic or non-broadcast interfaces correctly.
; bind interfaces only = yes
#### Debugging/Accounting ####
# This tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/log.%m
# Cap the size of the individual log files (in KiB).
max log size = 1000
# We want Samba to only log to /var/log/samba/log.{smbd,nmbd}.
# Append syslog@1 if you want important messages to be sent to syslog too.
logging = file
# Do something sensible when Samba crashes: mail the admin a backtrace
panic action = /usr/share/samba/panic-action %d
####### Authentication #######
# Server role. Defines in which mode Samba will operate. Possible
# values are "standalone server", "member server", "classic primary
# domain controller", "classic backup domain controller", "active
# directory domain controller".
#
# Most people will want "standalone server" or "member server".
# Running as "active directory domain controller" will require first
# running "samba-tool domain provision" to wipe databases and create a
# new domain.
server role = standalone server
obey pam restrictions = yes
# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
unix password sync = yes
# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
# pam password change = yes
# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
map to guest = bad user
########## Domains ###########
#
# The following settings only takes effect if 'server role = primary
# classic domain controller', 'server role = backup domain controller'
# or 'domain logons' is set
#
# It specifies the location of the user's
# profile directory from the client point of view) The following
# required a [profiles] share to be setup on the samba server (see
# below)
; logon path = \\%N\profiles\%U
# Another common choice is storing the profile in the user's home directory
# (this is Samba's default)
# logon path = \\%N\%U\profile
# The following setting only takes effect if 'domain logons' is set
# It specifies the location of a user's home directory (from the client
# point of view)
; logon drive = H:
# logon home = \\%N\%U
# The following setting only takes effect if 'domain logons' is set
# It specifies the script to run during logon. The script must be stored
# in the [netlogon] share
# NOTE: Must be store in 'DOS' file format convention
; logon script = logon.cmd
# This allows Unix users to be created on the domain controller via the SAMR
# RPC pipe. The example command creates a user account with a disabled Unix
# password; please adapt to your needs
; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u
# This allows machine accounts to be created on the domain controller via the
# SAMR RPC pipe.
# The following assumes a "machines" group exists on the system
; add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u
# This allows Unix groups to be created on the domain controller via the SAMR
# RPC pipe.
; add group script = /usr/sbin/addgroup --force-badname %g
############ Misc ############
# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
; include = /home/samba/etc/smb.conf.%m
# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
; idmap config * : backend = tdb
; idmap config * : range = 3000-7999
; idmap config YOURDOMAINHERE : backend = tdb
; idmap config YOURDOMAINHERE : range = 100000-999999
; template shell = /bin/bash
# Setup usershare options to enable non-root users to share folders
# with the net usershare command.
# Maximum number of usershare. 0 means that usershare is disabled.
# usershare max shares = 100
# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
usershare allow guests = yes
#======================= Share Definitions =======================
#[homes]
# comment = Home Directories
# browseable = yes
# By default, the home directories are exported read-only. Change the
# next parameter to 'no' if you want to be able to write to them.
# read only = yes
# File creation mask is set to 0700 for security reasons. If you want to
# create files with group=rw permissions, set next parameter to 0775.
# create mask = 0755
# Directory creation mask is set to 0700 for security reasons. If you want to
# create dirs. with group=rw permissions, set next parameter to 0775.
# directory mask = 0755
# By default, \\server\username shares can be connected to by anyone
# with access to the samba server.
# The following parameter makes sure that only "username" can connect
# to \\server\username
# This might need tweaking when using external authentication schemes
; valid users = %S
# Un-comment the following and create the netlogon directory for Domain Logons
# (you need to configure Samba to act as a domain controller too.)
;[netlogon]
; comment = Network Logon Service
; path = /home/samba/netlogon
; guest ok = yes
; read only = yes
# Un-comment the following and create the profiles directory to store
# users profiles (see the "logon path" option above)
# (you need to configure Samba to act as a domain controller too.)
# The path below should be writable by all users so that their
# profile directory may be created the first time they log on
;[profiles]
; comment = Users profiles
; path = /home/samba/profiles
; guest ok = no
; browseable = no
; create mask = 0600
; directory mask = 0700
;[printers]
; comment = All Printers
; browseable = no
; path = /var/spool/samba
; printable = yes
; guest ok = no
; read only = yes
; create mask = 0700
# Windows clients look for this share name as a source of downloadable
# printer drivers
;[print$]
; comment = Printer Drivers
; path = /var/lib/samba/printers
; browseable = yes
; read only = yes
; guest ok = no
# Uncomment to allow remote administration of Windows print drivers.
# You may need to replace 'lpadmin' with the name of the group your
# admin users are members of.
# Please note that you also need to set appropriate Unix permissions
# to the drivers directory for these users to have write rights in it
; write list = root, @lpadmin
[The98]
comment = Home
browseable = yes
path = /home/the98
guest ok = no
read only = yes
create mask = 0755
directory mask = 0755
[Musica]
comment = Musica del Home
browseable = yes
path = /home/the98/Musica
guest ok = yes
read only = yes
create mask = 0700
[Descargas]
comment = Descargas del Home
browseable = yes
path = /home/the98/Descargas
guest ok = yes
read only = yes
create mask = 0700
[TMP]
comment = TMP
browseable = yes
path = /tmp
guest ok = no
read only = no
create mask = 0755
directory mask = 0755$ smbtree -d3
Code:lp_load_ex: refreshing parameters
Initialising global parameters
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[global]"
added interface wlan0 ip=2800:810:54a:8681:ae81:12ff:fe28:5672 bcast= netmask=ffff:ffff:ffff:ffff::
added interface wlan0 ip=192.168.0.10 bcast=192.168.0.255 netmask=255.255.255.0
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
resolve_lmhosts: Attempting lmhosts lookup for name WORKGROUP<0x1d>
name_resolve_bcast: Attempting broadcast lookup for name WORKGROUP<0x1d>
Got a positive name query response from 192.168.0.2 ( 192.168.0.2 )
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
Enter WORKGROUP\the98's password:
Connecting to 192.168.0.2 at port 445
Connecting to 192.168.0.2 at port 139
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
Connecting to 192.168.0.2 at port 445
Connecting to 192.168.0.2 at port 139
When VLC tries to authenticate, I get this on:
/var/log/samba/log.
Code:[2020/04/28 12:13:51.107893, 0] ../../source3/smbd/smb2_server.c:735(smb2_validate_message_id)
smb2_validate_message_id: smb2_validate_message_id: client used more credits than granted, mid 5, charge 1, credits_granted 0, seqnum low/range: 5/0# testparm -s
Code:Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Server role: ROLE_STANDALONE
# Global parameters
[global]
log file = /var/log/samba/log.%m
logging = file
map to guest = Bad User
max log size = 1000
obey pam restrictions = Yes
panic action = /usr/share/samba/panic-action %d
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
passwd program = /usr/bin/passwd %u
server role = standalone server
unix password sync = Yes
usershare allow guests = Yes
idmap config * : backend = tdb
[The98]
comment = Home
create mask = 0755
path = /home/the98
[Musica]
comment = Musica del Home
create mask = 0700
guest ok = Yes
path = /home/the98/Musica
[Descargas]
comment = Descargas del Home
create mask = 0700
guest ok = Yes
path = /home/the98/Descargas
[TMP]
comment = TMP
create mask = 0755
path = /tmp
read only = No
Let me know if there's something else I can post to get to a solution.
Thank you very much.
Regards.
I'm having trouble with my current Debian Sid machine, and I'm pretty sure the problem comes from my installation, and it's not a bug or something.
Basically, there are some shared folders in my laptop, via SAMBA. I have no problems accessing this shares from another Debian installation (stable, in this case), but Android has issues accessing the folders. Now, bare with my, because you're going to point out that that's on Android, but wait.
I use two Android apps that let me browse my shares: VLC and Amaze File Explorer.
Amaze fails to connect to my computer every time. Actually, it does nothing. It's not even logged in SAMBA's log.
VLC is able to access the shares, but mostly the ones where guests are allowed. Those are accessible pretty easily. The ones that need authentication usually fail. But if you struggle long enough, you may get through and authenticate successfully. The log gets some input when VLC tries to authenticate (see below)
As I mentioned, I also have another Debian stable installation. I set up SAMBA in that installation, and the app that is never able to connect to my PC (Amaze), does it without any hesitation to this PC. You may think that there's a bug in Unstable's SAMBA, but I don't think that's what going on. I've been having this problem for years.
I suspect that there are some files or packages that are bothering a proper connection to the server. I've purged SAMBA and all related files, but that hasn't made any difference.
I should also mention that smbtree command shows nothing on my computer. And I can't help to think that those problems are related.
Here there are some config files and logs:
/etc/samba/smb.conf
Code:#
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
#
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
# commented-out examples in this file.
# - When such options are commented with ";", the proposed setting
# differs from the default Samba behaviour
# - When commented with "#", the proposed setting is the default
# behaviour of Samba but the option is considered important
# enough to be mentioned here
#
# NOTE: Whenever you modify this file you should run the command
# "testparm" to check that you have not made any basic syntactic
# errors.
#======================= Global Settings =======================
[global]
## Browsing/Identification ###
# Change this to the workgroup/NT-domain name your Samba server will part of
workgroup = WORKGROUP
#### Networking ####
# The specific set of interfaces / networks to bind to
# This can be either the interface name or an IP address/netmask;
# interface names are normally preferred
; interfaces = 127.0.0.0/8 eth0
# Only bind to the named interfaces and/or networks; you must use the
# 'interfaces' option above to use this.
# It is recommended that you enable this feature if your Samba machine is
# not protected by a firewall or is a firewall itself. However, this
# option cannot handle dynamic or non-broadcast interfaces correctly.
; bind interfaces only = yes
#### Debugging/Accounting ####
# This tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/log.%m
# Cap the size of the individual log files (in KiB).
max log size = 1000
# We want Samba to only log to /var/log/samba/log.{smbd,nmbd}.
# Append syslog@1 if you want important messages to be sent to syslog too.
logging = file
# Do something sensible when Samba crashes: mail the admin a backtrace
panic action = /usr/share/samba/panic-action %d
####### Authentication #######
# Server role. Defines in which mode Samba will operate. Possible
# values are "standalone server", "member server", "classic primary
# domain controller", "classic backup domain controller", "active
# directory domain controller".
#
# Most people will want "standalone server" or "member server".
# Running as "active directory domain controller" will require first
# running "samba-tool domain provision" to wipe databases and create a
# new domain.
server role = standalone server
obey pam restrictions = yes
# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
unix password sync = yes
# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
# pam password change = yes
# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
map to guest = bad user
########## Domains ###########
#
# The following settings only takes effect if 'server role = primary
# classic domain controller', 'server role = backup domain controller'
# or 'domain logons' is set
#
# It specifies the location of the user's
# profile directory from the client point of view) The following
# required a [profiles] share to be setup on the samba server (see
# below)
; logon path = \\%N\profiles\%U
# Another common choice is storing the profile in the user's home directory
# (this is Samba's default)
# logon path = \\%N\%U\profile
# The following setting only takes effect if 'domain logons' is set
# It specifies the location of a user's home directory (from the client
# point of view)
; logon drive = H:
# logon home = \\%N\%U
# The following setting only takes effect if 'domain logons' is set
# It specifies the script to run during logon. The script must be stored
# in the [netlogon] share
# NOTE: Must be store in 'DOS' file format convention
; logon script = logon.cmd
# This allows Unix users to be created on the domain controller via the SAMR
# RPC pipe. The example command creates a user account with a disabled Unix
# password; please adapt to your needs
; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u
# This allows machine accounts to be created on the domain controller via the
# SAMR RPC pipe.
# The following assumes a "machines" group exists on the system
; add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u
# This allows Unix groups to be created on the domain controller via the SAMR
# RPC pipe.
; add group script = /usr/sbin/addgroup --force-badname %g
############ Misc ############
# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
; include = /home/samba/etc/smb.conf.%m
# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
; idmap config * : backend = tdb
; idmap config * : range = 3000-7999
; idmap config YOURDOMAINHERE : backend = tdb
; idmap config YOURDOMAINHERE : range = 100000-999999
; template shell = /bin/bash
# Setup usershare options to enable non-root users to share folders
# with the net usershare command.
# Maximum number of usershare. 0 means that usershare is disabled.
# usershare max shares = 100
# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
usershare allow guests = yes
#======================= Share Definitions =======================
#[homes]
# comment = Home Directories
# browseable = yes
# By default, the home directories are exported read-only. Change the
# next parameter to 'no' if you want to be able to write to them.
# read only = yes
# File creation mask is set to 0700 for security reasons. If you want to
# create files with group=rw permissions, set next parameter to 0775.
# create mask = 0755
# Directory creation mask is set to 0700 for security reasons. If you want to
# create dirs. with group=rw permissions, set next parameter to 0775.
# directory mask = 0755
# By default, \\server\username shares can be connected to by anyone
# with access to the samba server.
# The following parameter makes sure that only "username" can connect
# to \\server\username
# This might need tweaking when using external authentication schemes
; valid users = %S
# Un-comment the following and create the netlogon directory for Domain Logons
# (you need to configure Samba to act as a domain controller too.)
;[netlogon]
; comment = Network Logon Service
; path = /home/samba/netlogon
; guest ok = yes
; read only = yes
# Un-comment the following and create the profiles directory to store
# users profiles (see the "logon path" option above)
# (you need to configure Samba to act as a domain controller too.)
# The path below should be writable by all users so that their
# profile directory may be created the first time they log on
;[profiles]
; comment = Users profiles
; path = /home/samba/profiles
; guest ok = no
; browseable = no
; create mask = 0600
; directory mask = 0700
;[printers]
; comment = All Printers
; browseable = no
; path = /var/spool/samba
; printable = yes
; guest ok = no
; read only = yes
; create mask = 0700
# Windows clients look for this share name as a source of downloadable
# printer drivers
;[print$]
; comment = Printer Drivers
; path = /var/lib/samba/printers
; browseable = yes
; read only = yes
; guest ok = no
# Uncomment to allow remote administration of Windows print drivers.
# You may need to replace 'lpadmin' with the name of the group your
# admin users are members of.
# Please note that you also need to set appropriate Unix permissions
# to the drivers directory for these users to have write rights in it
; write list = root, @lpadmin
[The98]
comment = Home
browseable = yes
path = /home/the98
guest ok = no
read only = yes
create mask = 0755
directory mask = 0755
[Musica]
comment = Musica del Home
browseable = yes
path = /home/the98/Musica
guest ok = yes
read only = yes
create mask = 0700
[Descargas]
comment = Descargas del Home
browseable = yes
path = /home/the98/Descargas
guest ok = yes
read only = yes
create mask = 0700
[TMP]
comment = TMP
browseable = yes
path = /tmp
guest ok = no
read only = no
create mask = 0755
directory mask = 0755$ smbtree -d3
Code:lp_load_ex: refreshing parameters
Initialising global parameters
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[global]"
added interface wlan0 ip=2800:810:54a:8681:ae81:12ff:fe28:5672 bcast= netmask=ffff:ffff:ffff:ffff::
added interface wlan0 ip=192.168.0.10 bcast=192.168.0.255 netmask=255.255.255.0
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
resolve_lmhosts: Attempting lmhosts lookup for name WORKGROUP<0x1d>
name_resolve_bcast: Attempting broadcast lookup for name WORKGROUP<0x1d>
Got a positive name query response from 192.168.0.2 ( 192.168.0.2 )
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
Enter WORKGROUP\the98's password:
Connecting to 192.168.0.2 at port 445
Connecting to 192.168.0.2 at port 139
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permiso denegado
Connecting to 192.168.0.2 at port 445
Connecting to 192.168.0.2 at port 139
When VLC tries to authenticate, I get this on:
/var/log/samba/log.
Code:[2020/04/28 12:13:51.107893, 0] ../../source3/smbd/smb2_server.c:735(smb2_validate_message_id)
smb2_validate_message_id: smb2_validate_message_id: client used more credits than granted, mid 5, charge 1, credits_granted 0, seqnum low/range: 5/0# testparm -s
Code:Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Server role: ROLE_STANDALONE
# Global parameters
[global]
log file = /var/log/samba/log.%m
logging = file
map to guest = Bad User
max log size = 1000
obey pam restrictions = Yes
panic action = /usr/share/samba/panic-action %d
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
passwd program = /usr/bin/passwd %u
server role = standalone server
unix password sync = Yes
usershare allow guests = Yes
idmap config * : backend = tdb
[The98]
comment = Home
create mask = 0755
path = /home/the98
[Musica]
comment = Musica del Home
create mask = 0700
guest ok = Yes
path = /home/the98/Musica
[Descargas]
comment = Descargas del Home
create mask = 0700
guest ok = Yes
path = /home/the98/Descargas
[TMP]
comment = TMP
create mask = 0755
path = /tmp
read only = No
Let me know if there's something else I can post to get to a solution.
Thank you very much.
Regards.