samba - Jan 2023 - [4.13.13-Debian] " reopen_one_log: Unable to open new log file '/var/log/samba/': Is a directory"?

On 11/01/2023 11:15, Rowland Penny via samba wrote:
> Fix your log file setting. Check what's the default for this.
>
> There isn't a default and '%m' is supposed to work.
>
> I think we need to see how the OP is running Samba, to do this, we 
> need the output of 'testparm -s' or 'samba-tool testparm'
if it is a
> DC (which it shouldn't be, because it looks like nmbd is running).
It's a stand-alone server.

Here's the output from testparm -s:
============Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Weak crypto is allowed
Server role: ROLE_STANDALONE

# Global parameters
[global]
 ??????? bind interfaces only = Yes
 ??????? disable netbios = Yes
 ??????? disable spoolss = Yes
 ??????? guest account = www-data
 ??????? interfaces = lo enp0s20
 ??????? load printers = No
 ??????? log file = /var/log/samba/%m
 ??????? map to guest = Bad User
 ??????? netbios name = SAMBA
 ??????? printcap name = /dev/null
 ??????? server role = standalone server
 ??????? server string = Some great server
 ??????? show add printer wizard = No
 ??????? idmap config * : backend = tdb
 ??????? hosts allow = 127.0.0.1 192.168.0.0/24
 ??????? hosts deny = 0.0.0.0/0
 ??????? printing = bsd


[guest]
 ??????? comment = Some great directory
 ??????? force create mode = 0660
 ??????? force directory mode = 0770
 ??????? guest ok = Yes
 ??????? guest only = Yes
 ??????? path = /var/www/html/
 ??????? read only = No
=============

On 11/01/2023 10:28, Gilles via samba wrote:
> On 11/01/2023 11:15, Rowland Penny via samba wrote:
>> Fix your log file setting. Check what's the default for this.
>>
>> There isn't a default and '%m' is supposed to work.
>>
>> I think we need to see how the OP is running Samba, to do this, we 
>> need the output of 'testparm -s' or 'samba-tool
testparm' if it is a
>> DC (which it shouldn't be, because it looks like nmbd is running).
> 
> It's a stand-alone server.
> 
> Here's the output from testparm -s:
> ============> Load smb config files from /etc/samba/smb.conf
> Loaded services file OK.
> Weak crypto is allowed
> Server role: ROLE_STANDALONE
> 
> # Global parameters
> [global]
>  ??????? bind interfaces only = Yes
>  ??????? disable netbios = Yes
>  ??????? disable spoolss = Yes
>  ??????? guest account = www-data
>  ??????? interfaces = lo enp0s20
>  ??????? load printers = No
>  ??????? log file = /var/log/samba/%m
>  ??????? map to guest = Bad User
>  ??????? netbios name = SAMBA
>  ??????? printcap name = /dev/null
>  ??????? server role = standalone server
>  ??????? server string = Some great server
>  ??????? show add printer wizard = No
>  ??????? idmap config * : backend = tdb
>  ??????? hosts allow = 127.0.0.1 192.168.0.0/24
>  ??????? hosts deny = 0.0.0.0/0
>  ??????? printing = bsd
> 
> 
> [guest]
>  ??????? comment = Some great directory
>  ??????? force create mode = 0660
>  ??????? force directory mode = 0770
>  ??????? guest ok = Yes
>  ??????? guest only = Yes
>  ??????? path = /var/www/html/
>  ??????? read only = No
> ============> 
> 
Having now seen the smb.conf, the fix is easy ;-)

In smb.conf there is:  disable netbios = Yes

This means that NetBIOS isn't being used, the only reason to run nmbd is 
for NetBIOS, so turn nmbd off and stop it ever running again.

Rowland