[Freedombox-discuss] ldapadd failure (was: NextCloud feedback)

Stefan Monnier monnier at iro.umontreal.ca
Tue Sep 23 06:18:48 BST 2025


> - The doc says:
>
>        All users of FreedomBox can use Nextcloud.
>        To perform administrative actions, use the "nextcloud-admin" user
>        after setting a password here.
>
>   but after installing NextCloud when my FB user tries to use NC it
>   first gets prompted for a username and password and using the FB
>   username+password fails.  Does that mean FB does not support "single
>   sign on" for NC?  Then what does "All users of FreedomBox can use
>   Nextcloud"?  Or is it supposed to work and I'm just bumping into
>   a bug/misconfiguration?

Hmm... maybe this is actually a problem in the LDAP setup.
I now notice that Plinth has been spewing a lot of errors in my logs
(and is using a lot of CPU resources)

    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: Running regular setup.
    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: Running setup for apps, essential - False, selected apps - ['users', 'cockpit', 'privacy', 'sharing', 'syncthing', 'bepasty', 'tor']
    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: Operation: users: Updating app: added
    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: Operation: users: Updating app: running
    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: Setup run: users
    Sep 23 01:14:54 FBOX /usr/bin/plinth[1378985]: # plinth..update() 
    Sep 23 01:14:54 FBOX sudo[1445407]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth update --write-fd 25
    Sep 23 01:14:54 FBOX sudo[1445407]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:00 FBOX sudo[1445407]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:00 FBOX /usr/bin/plinth[1378985]: # plinth..is_package_manager_busy() 
    Sep 23 01:15:00 FBOX sudo[1445431]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth is_package_manager_busy --write-fd 25
    Sep 23 01:15:01 FBOX sudo[1445431]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:02 FBOX sudo[1445431]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:05 FBOX /usr/bin/plinth[1378985]: App users does not need force upgrade
    Sep 23 01:15:16 FBOX /usr/bin/plinth[1378985]: # plinth..is_package_manager_busy() 
    Sep 23 01:15:16 FBOX sudo[1445453]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth is_package_manager_busy --write-fd 25
    Sep 23 01:15:16 FBOX sudo[1445453]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:17 FBOX sudo[1445453]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:17 FBOX /usr/bin/plinth[1378985]: Running install for app - users, packages - ['ldapscripts', 'ldap-utils', 'libnss-ldapd', 'libpam-ldapd', 'nslcd', 'samba-common-bin', 'slapd', 'tdb-tools']
    Sep 23 01:15:17 FBOX /usr/bin/plinth[1378985]: # plinth..update() 
    Sep 23 01:15:17 FBOX sudo[1445459]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth update --write-fd 25
    Sep 23 01:15:17 FBOX sudo[1445459]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:24 FBOX sudo[1445459]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:24 FBOX /usr/bin/plinth[1378985]: # plinth..install(app_id="users", packages=["ldapscripts", "ldap-utils", "libnss-ldapd", "libpam-ldapd", "nslcd", "samba-common-bin", "slapd", "tdb-tools"], skip_recommends=false, force_configuration=null, reinstall=false, force_missing_configuration=false) 
    Sep 23 01:15:24 FBOX sudo[1445482]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth install --write-fd 25
    Sep 23 01:15:24 FBOX sudo[1445482]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:26 FBOX /usr/share/plinth/actions/actions[1445485]: Initialized apps - names, dynamicdns, diagnostics, datetime, help, security, apache, sso, snapshot, firewall, avahi, letsencrypt, storage, power, networks, ssh, first_boot, backups, users, api, config, cockpit, upgrades, privacy, infinoted, ikiwiki, shaarli, jsxc, zoph, email, sogo, tiddlywiki, featherwiki, shadowsocksserver, coturn, ejabberd, ttrss, sharing, searx, gitweb, syncthing, wireguard, bepasty, pagekite, deluge, gnome, mumble, radicale, openvpn, kiwix, janus, bind, minetest, torproxy, tor, performance, calibre, transmission, nextcloud, rssbridge, shadowsocks, mediawiki, roundcube, matrixsynapse, privoxy, minidlna, miniflux, wordpress, quassel, samba
    Sep 23 01:15:27 FBOX runuser[1445513]: pam_unix(runuser:session): session opened for user debian-security-support(uid=122) by (uid=0)
    Sep 23 01:15:27 FBOX runuser[1445513]: pam_unix(runuser:session): session closed for user debian-security-support
    Sep 23 01:15:27 FBOX runuser[1445540]: pam_unix(runuser:session): session opened for user debian-security-support(uid=122) by (uid=0)
    Sep 23 01:15:29 FBOX runuser[1445540]: pam_unix(runuser:session): session closed for user debian-security-support
    Sep 23 01:15:29 FBOX runuser[1445993]: pam_unix(runuser:session): session opened for user debian-security-support(uid=122) by (uid=0)
    Sep 23 01:15:29 FBOX runuser[1445993]: pam_unix(runuser:session): session closed for user debian-security-support
    Sep 23 01:15:38 FBOX sudo[1445482]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:40 FBOX /usr/bin/plinth[1378985]: # plinth..dropin_is_valid("users", "/etc/apache2/includes/freedombox-auth-ldap.conf", false, unlink_invalid=true) 
    Sep 23 01:15:40 FBOX sudo[1446056]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions plinth dropin_is_valid --write-fd 25
    Sep 23 01:15:40 FBOX sudo[1446056]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:15:41 FBOX sudo[1446056]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:15:41 FBOX /usr/bin/plinth[1378985]: # users..setup() 
    Sep 23 01:15:41 FBOX sudo[1446060]:   plinth : PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/actions users setup --write-fd 25
    Sep 23 01:15:41 FBOX sudo[1446060]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=133)
    Sep 23 01:16:08 FBOX sudo[1446060]: pam_unix(sudo:session): session closed for user root
    Sep 23 01:16:08 FBOX /usr/bin/plinth[1378985]: Error running action users..setup(): CalledProcessError(53, ["ldapadd", "-Q", "-Y", "EXTERNAL", "-H", "ldapi:///"])
                                                     Stderr:
                                                     ║ debconf: unable to initialize frontend: Dialog
                                                     ║ debconf: (Dialog frontend will not work on a dumb terminal, an emacs shell buffer, or without a controlling terminal.)
                                                     ║ debconf: falling back to frontend: Readline
                                                     ║ debconf: unable to initialize frontend: Readline
                                                     ║ debconf: (This frontend requires a controlling tty.)
                                                     ║ debconf: falling back to frontend: Teletype
                                                     ║ debconf: unable to initialize frontend: Teletype
                                                     ║ debconf: (This frontend requires a controlling tty.)
                                                     ║ debconf: falling back to frontend: Noninteractive
                                                     ║ Use of uninitialized value $item in hash element at /usr/share/perl5/Debconf/DbDriver/File.pm line 89, <__ANONIO__> chunk 1.
                                                     ║ Use of uninitialized value $item in hash element at /usr/share/perl5/Debconf/DbDriver/File.pm line 89, <__ANONIO__> chunk 1.
                                                     ║ Use of uninitialized value $item in hash element at /usr/share/perl5/Debconf/DbDriver/File.pm line 89, <__ANONIO__> chunk 1.
                                                     ║ Use of uninitialized value $item in hash element at /usr/share/perl5/Debconf/DbDriver/File.pm line 89, <__ANONIO__> chunk 1.
                                                     ║ debconf: DbDriver "_ENV_stack": unable to save changes to: libnss-ldapd/nsswitch
                                                     ║ Synchronizing state of slapd.service with SysV service script with /usr/lib/systemd/systemd-sysv-install.
                                                     ║ Executing: /usr/lib/systemd/systemd-sysv-install enable slapd
                                                     ║ Synchronizing state of nslcd.service with SysV service script with /usr/lib/systemd/systemd-sysv-install.
                                                     ║ Executing: /usr/lib/systemd/systemd-sysv-install enable nslcd
                                                     ║ ldap_add: Server is unwilling to perform (53)
                                                     ║         additional info: no global superior knowledge
                                                     Action traceback:
                                                     ╞   File "/usr/lib/python3/dist-packages/plinth/actions.py", line 398, in _privileged_call
                                                     ╞     return_values = func(*arguments['args'], **arguments['kwargs'])
                                                     ╞   File "/usr/lib/python3/dist-packages/plinth/modules/users/privileged.py", line 77, in setup
                                                     ╞     _configure_ldap_structure()
                                                     ╞     ~~~~~~~~~~~~~~~~~~~~~~~~~^^
                                                     ╞   File "/usr/lib/python3/dist-packages/plinth/modules/users/privileged.py", line 138, in _configure_ldap_structure
                                                     ╞     _create_organizational_unit('users')
                                                     ╞     ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
                                                     ╞   File "/usr/lib/python3/dist-packages/plinth/modules/users/privileged.py", line 159, in _create_organizational_unit
                                                     ╞     subprocess.run(['ldapadd', '-Q', '-Y', 'EXTERNAL', '-H', 'ldapi:///'],
                                                     ╞     ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                                     ╞                    input=input.encode(), stdout=subprocess.DEVNULL,
                                                     ╞                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                                     ╞                    check=True)
                                                     ╞                    ^^^^^^^^^^^
                                                     ╞   File "/usr/lib/python3.13/subprocess.py", line 577, in run
                                                     ╞     raise CalledProcessError(retcode, process.args,
                                                     ╞                              output=stdout, stderr=stderr)
    Sep 23 01:16:08 FBOX /usr/bin/plinth[1378985]: Setup completed: users: Error updating app: {exception} Command '['ldapadd', '-Q', '-Y', 'EXTERNAL', '-H', 'ldapi:///']' returned non-zero exit status 53.
    Sep 23 01:16:08 FBOX /usr/bin/plinth[1378985]: Error running setup - Command '['ldapadd', '-Q', '-Y', 'EXTERNAL', '-H', 'ldapi:///']' returned non-zero exit status 53.
    Sep 23 01:16:08 FBOX /usr/bin/plinth[1378985]: Unable to complete setup: Command '['ldapadd', '-Q', '-Y', 'EXTERNAL', '-H', 'ldapi:///']' returned non-zero exit status 53.
    Sep 23 01:16:08 FBOX /usr/bin/plinth[1378985]: Will try again in 10 seconds

Any idea what's going on and how to fix it?


        Stefan




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