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Re: [Samba] Fwd: NT_STATUS_ACCESS_DENIED for guest account to public share




On Fri, 25 May 2018 12:13:44 -0400
Raymond Page via samba <samba@xxxxxxxxxxxxxxx> wrote:

> Hi list,
> 
> I'm using samba-4.7.6-r0 and attempting to establish a public samba
> share where any anonymous user can write to the share.
> 
> I have an issue where the 'guest' (uid 405) account is unable to
> write to a directory owned by that uid. If the gid or world writable
> bits are set, I can write to my share, but not as the guest uid. I
> need assistance troubleshooting why I cannot write as the guest
> account to my share.
> 
> My problem:
> # touch test.txt
> # smbclient -U% //easystore/public -c 'put test.txt test1.txt'
> NT_STATUS_ACCESS_DENIED opening remote file \test1.txt
> 
> My local filesystem:
> # ls -lad /mnt/share
> drwxr-xr-x 5 guest users 4096 May 25 15:18 /mnt/share
> 
> My user details:
> # getent passwd guest
> guest:x:405:100:guest:/dev/null:/sbin/nologin
> # pdbedit -L -v
> ^$ EOL
> 
> My smbstatus (ran windows 10 client to hold open the share path
> locks): # smbstatus
> 
> Samba version 4.7.6
> PID     Username     Group        Machine
>  Protocol Version  Encryption           Signing
> ----------------------------------------------------------------------------------------------------------------------------------------
> 24844   guest        users        192.168.50.131
> (ipv4:192.168.X.X :54932) SMB3_11           -                    -
> 24852   guest        users        192.168.50.185
> (ipv4:192.168.X.X :57840) SMB3_11           -                    -
> 24851   guest        users        192.168.50.185
> (ipv4:192.168.X.X :57839) SMB3_11           -                    -
> 
> Service      pid     Machine       Connected at
>  Encryption   Signing
> ---------------------------------------------------------------------------------------------
> public       24852   192.168.X.X Fri May 25 15:44:07 2018 UTC     -
>     -
> public       24844   192.168.X.X Fri May 25 15:43:41 2018 UTC     -
>     -
> IPC$         24852   192.168.X.X Fri May 25 15:44:07 2018 UTC     -
>     -
> IPC$         24851   192.168.X.X Fri May 25 15:44:06 2018 UTC     -
>     -
> public       24851   192.168.X.X Fri May 25 15:44:06 2018 UTC     -
>     -
> 
> Locked files:
> Pid          Uid        DenyMode   Access      R/W        Oplock
>  SharePath   Name   Time
> --------------------------------------------------------------------------------------------------
> 24851        405        DENY_NONE  0x100081    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:06 2018
> 24851        405        DENY_NONE  0x100081    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:06 2018
> 24851        405        DENY_NONE  0x100081    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:07 2018
> 24852        405        DENY_NONE  0x100080    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:07 2018
> 24851        405        DENY_NONE  0x100081    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:08 2018
> 24851        405        DENY_ALL   0x100080    RDONLY     NONE
>  /mnt/share   .   Fri May 25 15:44:12 2018
> 
> My smb.conf:
> [global]
> syslog = 7
> netbios name = SHARE
> workgroup = WORKGROUP
> security = user
> map to guest = Bad User
> guest account = guest
> #username map = /etc/samba/smbusers
> dns proxy = no
> #log level = all
> log file = /var/log/samba/%m.log
> browsable = yes
> #read only = yes
> guest ok = no
> writable = no
> printable = no
> 
> [printers]
> comment = All Printers
> path = /usr/spool/samba
> browseable = yes
> printable = yes
> 
> [homes]
> comment = User Home Directories
> browsable = yes
> writable = yes
> 
> [public]
> comment = Public Share
> path = /mnt/share
> public = yes
> guest only = yes
> read only = no
> writable = yes
> printable = no
> #force user = guest
> create mask = 0644
> directory mask = 0755
> 
> --
> Raymond Page

Three things, does 'guest' exist in /etc/passwd and Samba ?
Remove 'guest ok = no' from [global] and add 'guest ok = yes' to the
shares.
Finally, just who is it that is telling people to add 'read
only' AND 'writable = yes' ? They are the same setting (goes off
muttering to himself)

Rowland

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