[Risolto]Samba ha smesso di funzionare senza motivo apparente

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5 risposte

[Risolto]Samba ha smesso di funzionare senza motivo apparente

Come da titolo,
stavo usando Samba tranquillamente, quando ad un certo punto mi sono accorto che alcune partizioni del server non erano accessibili da computer remoti. Ho cambiato il settaggio sul file smb.conf , e dopo aver riavviato il demone è esploso.

Service --status-all mi dice che sta girando... ma non riesco più ad accedere a nessuna directory...
Ho fatto il backup del file di configurazione ed ho rimosso e reinstallato samba. Avviato il demone, ora nemmeno si vede in rete...
Che porca miseria posso fare? non so da dove iniziare, ho controllato tutto quello che conosco.

5 Risposte

  • Re: [Risolto]Samba ha smesso di funzionare senza motivo apparente

    Esploso mi sembra difficile.
    innanzitutto devi capire se hai sbagliato il file di configuraizone
    O nmbd non parte
    O semplicemente una elezione.
    O un aggiornamento samba le cui Impostazione predefinite sono cambiate e rilette al riavvio 4.2 vs 4.4+

    Quindi per ordine
    0 controlla i log di samba
    1 versione esatta samba
    2 crea smb4.conf minimale sicuramente funzionante
    3 avvia servizi smbd e nmbd
    Verifica che funzionino
    usa smbclient in locale
    Poi net view da Windows con IP e non nome netbios
    poi controlla elezione
    poi utenti smpasswd
    telnetta da Windows per vedere se firewall
    Ricontrolla i log

    Insomma c'è da fare, ma in modo logico e sistematico, più che a casaccio
  • Re: [Risolto]Samba ha smesso di funzionare senza motivo apparente

    +m2+ ha scritto:



    Insomma c'è da fare, ma in modo logico e sistematico, più che a casaccio
    A casaccio?

    ho controllato il file con testparm, non è raggiungibile da browser, l'unica impostazione cambiata erano i permessi dei profili che avevo fatto, la prima cosa che ho fatto è ripristinare il file backup che faccio sempre prima di una modifica, restarto il server ed ha smesso di funzionare. Reinstallo tutto e non funziona... non penso che il firewall si sveglia la mattina e decide di bloccare da solo le connessioni.

    Comunque:

    0.Log non presenta errori
    1. che significa? è l'ultima versione disponibile
    2. già fatto ho usato il file default
    3. fatto
    4. già detto attraverso service --status-all , verificato anche dal log che il demone gira
    5. si funziona:
    marco@redserver:~/Documenti$ sudo smbclient -L 127.0.0.1
    WARNING: The "syslog" option is deprecated
    Enter WORKGROUP\root's password: 
    
    	Sharename       Type      Comment
    	---------       ----      -------
    	print$          Disk      Printer Drivers
    	famiglia        Disk      
    	documenti       Disk      
    	dati            Disk      
    	IPC$            IPC       IPC Service (redserver server (Samba, Ubuntu))
    Reconnecting with SMB1 for workgroup listing.
    
    	Server               Comment
    	---------            -------
    
    	Workgroup            Master
    	---------            -------
    	WORKGROUP            RASPBERRYPI
    
    6.
    C:\Users\PC-Fisso>net view
    Nome server            Note
    
    -----------------------------------------------
    \\PC-FISSO-PC
    \\RASPBERRYPI          Samba 4.5.12-Debian
    Esecuzione comando riuscita.
    Non lo vede

    Se metto l'ip mi da questo risultato...
    \\PC-FISSO-PC
    \\RASPBERRYPI          Samba 4.5.12-Debian
    Esecuzione comando riuscita.
    
    
    C:\Users\PC-Fisso>net view 192.168.1.11
    Risorse condivise su 192.168.1.11
    
    redserver server (Samba, Ubuntu)
    
    Nome condivisione  Tipo   Utilizzato come  Commento
    
    --------------------------------------------------------
    dati               Disco
    documenti          Disco
    famiglia           Disco
    Esecuzione comando riuscita.
    


    La cosa è un po strana

    Come telnetto da windows il samba? ha una porta in particolare?
    Qui non la vero... humm...
    marco@redserver:~/Documenti$ sudo nmap -sT -O localhost
    
    Starting Nmap 7.60 ( https://nmap.org ) at 2019-01-08 10:30 CET
    Nmap scan report for localhost (127.0.0.1)
    Host is up (0.00068s latency).
    Not shown: 996 closed ports
    PORT    STATE SERVICE
    22/tcp  open  ssh
    139/tcp open  netbios-ssn
    445/tcp open  microsoft-ds
    631/tcp open  ipp
    Device type: general purpose
    Running: Linux 3.X|4.X
    OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
    OS details: Linux 3.8 - 4.9
    Network Distance: 0 hops
    
    OS detection performed. Please report any incorrect results at https://nmap.org/submit/ .
    Nmap done: 1 IP address (1 host up) scanned in 4.37 seconds
    
  • Re: [Risolto]Samba ha smesso di funzionare senza motivo apparente

    La porta 139 la telnetto

    ho la conferma dal log
    [2019/01/08 10:56:15.235542,  0] ../source3/smbd/process.c:340(read_packet_remainder)
      read_fd_with_timeout failed for client 192.168.1.85 read error = NT_STATUS_END_OF_FILE.
    
  • Re: [Risolto]Samba ha smesso di funzionare senza motivo apparente

    
    
    
    
    #
    # 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
    
    # 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
    
    
    
    
    
    
    #### 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 = 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 <<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
    
    
       security = 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
    
    # 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
    
    ### CUSTOM CONFIG MARCO ###
    [famiglia]
    path = /media/marco/famiglia
    valid users = marco
    read only = no
    browseable = yes
    public = yes
    writable = yes
    create mask = 0775
    directory mask = 0775
    
    [documenti]
    path = /media/marco/doc
    valid users = marco
    read only = no
    browseable = yes
    public = yes
    writable = yes
    create mask = 0775
    directory mask = 0775
    
    [dati]
    path = /media/marco/DATA
    valid users = marco
    read only = no
    browseable = yes
    public = yes
    writable = yes
    create mask = 0775
    directory mask = 0775
    
    # 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.
    # 0777 per far accedere tutti
    
    
  • Re: [Risolto]Samba ha smesso di funzionare senza motivo apparente

    Risolto, era il server nmbd.
    Grazie +M2+
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