[Samba] "smbd_open_one_socket: open_socket_in failed: Cannot assign requested address"?
Gilles
codecomplete at free.fr
Sat Jun 21 21:58:40 UTC 2025
Hello,
Google didn't help finding why Samba can't listen to the Ethernet card
on a fresh Debian 12 host: "systemctl status smbd"
says "smbd_open_one_socket: open_socket_in failed: Cannot assign
requested address".
Any idea what it could be?
Thank you.
=========== remove AppArmor
root at debian-dell:~# systemctl stop apparmor
root at debian-dell:~# systemctl disable apparmor
root at debian-dell:~# apt remove --assume-yes --purge apparmor
=========== smb.conf
root at debian-dell:~# cat /etc/samba/smb.conf
[global]
netbios name = DEBIAN-DELL
server role = standalone
security = user
disable netbios = yes
smb ports = 445
map to guest = Bad User
guest account = www-data
;interfaces = lo, enp4s0
interfaces = 192.168.0.19/24 127.0.0.1/32
bind interfaces only = Yes
log level = 2
printcap name = /dev/null
load printers = no
printing = bsd
[my_data]
path = /my_data
;comment = No need for Unix/Samba passwords
guest ok = yes
writeable=yes
browseable=yes
create mode = 0644
=========== netstat
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 0.0.0.0:80 0.0.0.0:* LISTEN
322/nginx: master p
tcp 0 0 127.0.0.1:445 0.0.0.0:* LISTEN 346/smbd
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
328/sshd: /usr/sbin
tcp 0 0 192.168.0.19:5357 0.0.0.0:* LISTEN
315/python3
tcp6 0 0 :::80 :::* LISTEN
322/nginx: master p
tcp6 0 0 :::22 :::* LISTEN 328/sshd:
/usr/sbin
tcp6 0 0 fe80::280:64ff:fef:5357 :::* LISTEN 315/python3
udp 0 0 0.0.0.0:68 0.0.0.0:*
285/dhclient
udp 0 0 192.168.0.19:123 0.0.0.0:* 318/ntpd
udp 0 0 127.0.0.1:123 0.0.0.0:* 318/ntpd
udp 0 0 0.0.0.0:123 0.0.0.0:* 318/ntpd
udp 0 0 0.0.0.0:5353 0.0.0.0:*
302/avahi-daemon: r
udp 0 0 0.0.0.0:58680 0.0.0.0:*
302/avahi-daemon: r
udp 0 0 192.168.0.19:3702 0.0.0.0:*
315/python3
udp 0 0 239.255.255.250:3702 0.0.0.0:*
315/python3
udp 0 0 0.0.0.0:33601 0.0.0.0:*
315/python3
udp6 0 0 :::37815 :::*
302/avahi-daemon: r
udp6 0 0 2a01:e0a:590:fd80:2:123 :::* 318/ntpd
udp6 0 0 fe80::280:64ff:fefd:123 :::* 318/ntpd
udp6 0 0 ::1:123 :::* 318/ntpd
udp6 0 0 :::123 :::* 318/ntpd
udp6 0 0 :::5353 :::*
302/avahi-daemon: r
udp6 0 0 :::37413 :::* 315/python3
udp6 0 0 fe80::280:64ff:fef:3702 :::* 315/python3
udp6 0 0 ff02::c:3702 :::* 315/python3
=========== IP address
root at debian-dell:~# ifconfig
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.19 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 2a01:e0a:590:fd80:280:64ff:fefd:7ac6 prefixlen 64
scopeid 0x0<global>
inet6 fe80::280:64ff:fefd:7ac6 prefixlen 64 scopeid 0x20<link>
ether 00:80:64:fd:7a:c6 txqueuelen 1000 (Ethernet)
RX packets 349 bytes 39295 (38.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 382 bytes 65214 (63.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 24 bytes 3977 (3.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 24 bytes 3977 (3.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
=========== Samba loading interfaces
root at debian-dell:/etc/samba# tail -f /var/log/samba/log.smbd
...
[2025/06/21 23:38:49.757538, 2]
../../source3/param/loadparm.c:2897(lp_do_section)
Processing section "[my_data]"
[2025/06/21 23:38:49.759065, 2]
../../source3/lib/interface.c:611(interpret_interface)
interpret_interface: Adding interface 192.168.0.19/24
added interface 192.168.0.19/24 ip=192.168.0.19 bcast=192.168.0.255
netmask=255.255.255.0
[2025/06/21 23:38:49.759228, 2]
../../source3/lib/interface.c:584(interpret_interface)
interpret_interface: using netmask value 32 from config file on
interface lo
added interface lo ip=127.0.0.1 bcast=127.255.255.255
netmask=255.255.255.255
=========== check Samba status
root at debian-dell:/etc/samba# systemctl status smbd
● smbd.service - Samba SMB Daemon
Loaded: loaded (/lib/systemd/system/smbd.service; enabled; preset:
enabled)
Active: active (running) since Sat 2025-06-21 23:32:32 CEST; 17min ago
Docs: man:smbd(8)
man:samba(7)
man:smb.conf(5)
Process: 308 ExecCondition=/usr/share/samba/is-configured smb
(code=exited, status=0/SUCCESS)
Process: 330
ExecStartPre=/usr/share/samba/update-apparmor-samba-profile
(code=exited, status=0/SUCCESS)
Process: 359 ExecReload=/bin/kill -HUP $MAINPID (code=exited,
status=0/SUCCESS)
Main PID: 346 (smbd)
Status: "smbd: ready to serve connections..."
Tasks: 3 (limit: 1829)
Memory: 29.9M
CPU: 908ms
CGroup: /system.slice/smbd.service
├─346 /usr/sbin/smbd --foreground --no-process-group
├─351 /usr/sbin/smbd --foreground --no-process-group
└─352 /usr/sbin/smbd --foreground --no-process-group
Jun 21 23:32:24 debian-dell systemd[1]: Starting smbd.service - Samba
SMB Daemon...
Jun 21 23:32:32 debian-dell smbd[346]: [2025/06/21 23:32:32.431602, 0]
../../source3/smbd/server.c:1741(main)
Jun 21 23:32:32 debian-dell smbd[346]: smbd version 4.17.12-Debian
started.
Jun 21 23:32:32 debian-dell smbd[346]: Copyright Andrew Tridgell and
the Samba Team 1992-2022
Jun 21 23:32:32 debian-dell systemd[1]: Started smbd.service - Samba SMB
Daemon.
Jun 21 23:32:32 debian-dell smbd[346]: [2025/06/21 23:32:32.493490, 0]
../../source3/smbd/server.c:1097(smbd_open_one_s>
Jun 21 23:32:32 debian-dell smbd[346]: smbd_open_one_socket:
open_socket_in failed: Cannot assign requested address
Jun 21 23:32:32 debian-dell systemd[1]: Reloading smbd.service - Samba
SMB Daemon...
Jun 21 23:32:32 debian-dell systemd[1]: Reloaded smbd.service - Samba
SMB Daemon.
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