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

[Gilles]

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
=============