Tuesday, December 23, 2025

macos – One SMB server (Linux) does not appear in Finder unless already connected

I have a system running MacOS 26.0.1. This is my only Mac on the network. There are several servers – most of which are Ubuntu 24.04 – running SMB. I can connect to any of these servers. But only one of them (“nasrefresh”) never appears in the Network section of finder unless I am already, currently connected. Here is an image of Finder with Network selected after a reboot of the Mac system:

MacOS Finder Network after MacOS reboot

If I choose Finder “Go / Connect to Server” I find the dialog already populated from its prior use (smb://nasrefresh…), and connection is successful. After this, of course, Finder shows the server under Network (until timeout disconnects it):

MacOS Finder Network after connecting to server

(Note: All of these servers are on the local network with 192.168.1.* addresses, and all servers including MaCOS have a subnet mask of 192.168.1.0 (or /24). Also, all of these servers including MacOS have a domain name of lovelady.com, with search lovelady.com being the default)

Now if I let that connection time out due to lack of use, it again disappears from the Network tab. Why would this inconsistency appear? I use virtually the same global settings in /etc/samba/smb.conf – with only the “volume” section definitions being necessarily different…

The reason this is an issue for me is that usually when I am looking for a file on nasrefresh, it is not Finder that offers me the path, but something else (say a text editor, on File/Open, for example) and the standard File Open dialog does not offer “Go / Connect to server” when selecting a file. If the connection to nasrefresh is “active,” then no issue. But if it’s timed out or not yet connected, I have to abandon that Open, go to Finder, connect, and then re-execute the “Open” in the text editor… a bit of a mess that leads to other problems.

What might cause such a problem? And/or how can I gather other useful information to help others understand and identify it?

Here is the entire /etc/samba/smb.conf file from nasrefresh with the comments removed:

[global]
   workgroup = Pegasus Software
   server string = %h server (Samba, Ubuntu)
mangled names = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   logging = file
   panic action = /usr/share/samba/panic-action %d
   server role = standalone server
   obey pam restrictions = yes
   unix password sync = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
   pam password change = yes
   map to guest = bad user
[CDROM]
    comment = NASREFRESH CD-ROM
    read only = yes
    path = /cdrom
    guest ok = no
[SSDs]
    comment = NASREFRESH SSDs
    read only = no
    ; force grop = www
    path = /SSDs
    guest ok = no
    create mask = 0775
    directory mask = 0775
[Main-HDDs]
    comment = NASREFRESH Main
    read only = no
    path = /Main-HDDs
    guest ok = no
    create mask = 0775
    directory mask = 0775

nasrefresh runs Ubuntu 24.04.3

PRETTY_NAME="Ubuntu 24.04.3 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.3 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

nasrefresh SMB status:

> sudo smbstatus
[sudo] password for dennis:

Samba version 4.19.5-Ubuntu
PID     Username     Group        Machine                                   Protocol Version  Encryption           Signing
----------------------------------------------------------------------------------------------------------------------------------------
3500850 dennis       dennis       192.168.1.32 (ipv4:192.168.1.32:62019)    SMB3_11           -                    partial(AES-128-GMAC)
4686    dennis       dennis       192.168.1.118 (ipv4:192.168.1.118:63249)  SMB3_11           -                    partial(AES-128-CMAC)

Service      pid     Machine       Connected at                     Encryption   Signing
---------------------------------------------------------------------------------------------
Main-HDDs    3500850 192.168.1.32  Thu Oct 23 07:42:06 AM 2025 EDT  -            -
Main-HDDs    4686    192.168.1.118 Wed Oct 22 12:52:34 PM 2025 EDT  -            -


Locked files:
Pid          User(ID)   DenyMode   Access      R/W        Oplock           SharePath   Name   Time
--------------------------------------------------------------------------------------------------
3500850      1000       DENY_NONE  0x100081    RDONLY     NONE             /Main-HDDs   .   Thu Oct 23 07:48:18 2025
4686         1000       DENY_ALL   0x100080    RDONLY     NONE             /Main-HDDs   .   Wed Oct 22 12:53:09 2025

Related Articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Latest Articles