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Steve R. 03-14-2019 10:08 AM

Samba - Can't Make "Public" Folder a Network Share
 
Recently, (to fix another issue) I upgraded to Samba Version 4.7.12. I am currently using Ubuntu 16.04. I am now unable to make the "public" folder a network share folder. When I attempt to do that, I get the following error message:

Quote:

'net usershare' returned error 255: net usershare add: cannot convert name "Everyone" to a SID. The transport-connection attempt was refused by the remote system.. Maybe smbd is not running.
When I ran:
Code:

sudo service smbd start
I got the following message:
Quote:

Failed to start smbd.service: Unit smbd.service not found.
I did find a recent post, concerning the same issue on AskUbuntu: Error while using samba for file sharing - convert name “Everyone” to a SID But no positive answer.

Prior to upgrading to Samba Version 4.7.12, I was able to make the "public" folder shareable. I obtained the Samba upgrade from: https://launchpad.net/~linux-schools...buntu/samba4.7

A copy of my smb.conf file:

Code:

# 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
    workgroup = HOUSE

# server string is the equivalent of the NT Description field
        server string = %h server (Samba, Ubuntu)

# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable its WINS Server
#  wins support = no

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
;  wins server = w.x.y.z

# This will prevent nmbd to search for NetBIOS names through DNS.
  dns proxy = no


#### 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

# Samba config: http://www.oreilly.com/openbook/samba/book/ch07_03.html
# lmhosts files: http://manpages.ubuntu.com/manpages/xenial/man5/lmhosts.5.html
# added 9/5/2017
#wins support = yes
#name resolve order = bcast hosts lmhosts


#### 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

# If you want Samba to only log through syslog then set the following
# parameter to 'yes'.
#  syslog only = no

# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.
# syslog depreciated. http://comtech247.net/2012/05/04/how-to-configure-file-sharing-on-ubuntu-12-04-lts/
#  syslog = 0

# 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 sever" 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

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using. 
  passdb backend = tdbsam

  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 <<[email protected]> 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 uid = 10000-20000
;  idmap gid = 10000-20000
;  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 (default) means that usershare is disabled.
#  usershare max shares = 100
# Added 3/13/2019
    usershare max shares = 5

# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
  usershare allow guests = yes

#======================= Share Definitions =======================

# Un-comment the following (and tweak the other settings below to suit)
# to enable the default home directory shares. This will share each
# user's home directory as \\server\username
;[homes]
;  comment = Home Directories
;  browseable = no

# 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 = 0700

# 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 = 0700

# By default, \\server\username shares can be connected to by anyone
# with access to the samba server.
# Un-comment the following parameter to make 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
#--------------------


frankbell 03-14-2019 07:46 PM

What is the output of

Code:

whereis smbd

Steve R. 03-15-2019 07:23 AM

Quote:

Originally Posted by frankbell (Post 5973990)
What is the output of

Code:

whereis smbd

Quote:

smbd: /usr/sbin/smbd /usr/share/man/man8/smbd.8.gz
Have to toss in a few words. Get the "too short message"

Steve R. 03-16-2019 12:39 PM

I ran across this: [Samba] a quick small howto to get samba 4.7.4 on ubuntu 16.04.. I'm not experimenting with it for two reasons. First, there there is no discussion concerning why this approach should even be used (i.e. it fixes some problem). Second, I have no real understanding of the proposed code would be doing.

Steve R. 03-16-2019 07:43 PM

This issue has been marked solved as I restored Samba Version 4.3.11-Ubuntu. I believe that Samba Version 4.7.12 may be incompatible with Ubuntu 16.04.

I did run across this website: How to Install and Configure Samba Server on Ubuntu 16.04 for File Sharing which notes: "The latest stable version available is 4.5.3, released on December 19, 2016.". So maybe something happened since 4.5.3. Anyway, back to Samba Version 4.3.11-Ubuntu. I also removed the PPA for upgrading Samba.


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