[Samba] Right-way to use " bind interfaces only = Yes"?

[Gilles]

On 22/06/2025 13:57, Rowland Penny via samba wrote:
 > From what you posted in your earlier post, this appears to be Samba
 > 4.17.12, so probably Debian 12.
 >
 > In which case, there is no /etc/init directory and there isn't a
 > smbd.conf file, it will be /etc/samba/smb.conf.
 >
 > I do not think that reloading the Samba config will change the
 > interfaces for a running smbd, it binds to the interfaces at startup.
 >
 > Can I suggest you stop using the default Debian Samba and use the
 > version from bookworm-backports, this will get you 4.22.2 at the moment
 > and that is supported by Samba, 4.17.12 is only supported by Debian and
 > as such isn't likely to get fixed if you have hit a bug, which is
 > unlikely.
 >
 > '0.0.0.0' is not the loopback device.
 >
 > 'ifconfig' is deprecated, it has been replaced with 'ip a', what does
 > that show ?

Yes, it's Debian 12 and Samba 4.17.12.

I prefer installing packages through apt. Is 4.22.2 available as a package?

I know 0.0.0.0 isn't the loopback device. Here's what I wrote:
 > If I use it, Samba only listens to the loopback interface.
=============
root at debian-dell:~# netstat -tunlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address  State      
  PID/Program name
tcp        0      0 127.0.0.1:445           0.0.0.0:*  LISTEN      396/smbd

root at debian-dell:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
group default qlen 1000
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host noprefixroute
        valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel 
state UP group default qlen 1000
     link/ether 00:80:64:fd:7a:c6 brd ff:ff:ff:ff:ff:ff
     inet 192.168.0.19/24 brd 192.168.0.255 scope global dynamic enp4s0
        valid_lft 852956sec preferred_lft 852956sec
     inet6 2a01:e0a:590:fd80:280:64ff:fefd:7ac6/64 scope global dynamic 
mngtmpaddr
        valid_lft 86345sec preferred_lft 86345sec
     inet6 fe80::280:64ff:fefd:7ac6/64 scope link
        valid_lft forever preferred_lft forever

On 22/06/2025 14:12, Θεόφιλος Ιντζόγλου wrote:
 > If you are using NetworkManager and systemd you are probably getting 
samba
 > service to start before it actually configures your network card so 
it only
 > finds the loopback. Try to configure systemd to start smb services after
 > NetworkManager-wait-online.service

It's a thin client, doesn't have much RAM, so I installed Debian without X.

Should I edit /usr/lib/systemd/system/smb.service so it loads after 
Ethernet is up and running (IP assigned by DHCP)?
https://serverfault.com/questions/482730/systemd-dependencies-and-boot-order