collabora connection

ℹ️ Support
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The Basics

  • Nextcloud Server version (e.g., 29.x.x):
  • Operating system and version (e.g., Ubuntu 24.04):
    • Ubuntu 22.04.5 LTS
  • Web server and version (e.g, Apache 2.4.25):
    • N/A (docker container)
  • Reverse proxy and version _(e.g. nginx 1.27.2)
    • NPM v2.13.5
  • PHP version (e.g, 8.3):

    • $ docker exec nextcloud php --version
      PHP 8.3.30 (cli) (built: Jan 16 2026 23:26:52) (NTS)
      Copyright (c) The PHP Group
      Zend Engine v4.3.30, Copyright (c) Zend Technologies
      with Zend OPcache v8.3.30, Copyright (c), by Zend Technologies

  • Is this the first time you’ve seen this error? (Yes / No):
    • Yes
  • When did this problem seem to first start?
    • Installation
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • Docker compose
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • Yes, Cloudflare

Summary of the issue you are facing:

I would love to use the documentation effectively but I am not even sure what I am looking for :frowning:

I have been slowly attempting to resolve all of the installation issues, this is the biggest. I have collabora installed in a separate container on docker BUT using the same nextcloud_network. Collabora is returning OK in the browser when I reach it using https://collabora.sol2charon.us. When I go to the User > Administration Settings > Administration > Office I get

Your browser has been unable to connect to the Collabora server: http://collabora.sol2charon.us

This URL is determined on the Collabora server either from the configured URL or the server_name parameter in coolwsd.xml.

Note that it is complaining about http:// instead of the https:// that is clearly in the URL.

image
image1332×355 24 KB

I have updated the coolwsd.xml adding the server_name and the network 172.27.0.0 to the lok_allow and post_allow. But nothing I do seems to resolve the connectivity issue.

my setup is as below
/home/user/collabora/docker-compose.yml

services:

  collabora:

    image: collabora/code:latest

    container_name: collabora_online

    restart: always

    ports:

      - "9980:9980"

    environment:

      - aliasgroup1=https://collabora.sol2charon.us:443

      - extra_params=--o:ssl.enable=false --o:ssl.termination=true   

    tty: true

    networks:

      - nextcloud_network

    mem_limit: 4G

    volumes:

      - ./coolwsd.xml:/etc/coolwsd/coolwsd.xml

      

networks:

  nextcloud_network:

    external: true

/home/user/nextcloud/docker-compose.xml (sensitive data replaced with )

services:

  nextcloud:

    image: nextcloud:latest

    container_name: nextcloud

    restart: always

    ports:

      - "38080:80"

    volumes:

      - /mnt/docker_nfs/nextcloud:/var/www/html

    networks:

      - nextcloud_network

    # ... other config ...

    environment:

      - XDG_CACHE_HOME=/tmp/fontconfig-cache

      - NEXTCLOUD_TRUSTED_DOMAINS=nc.sol2charon.us localhost 127.0.0.1

      - OVERWRITEPROTOCOL=https

      - TRUSTED_PROXIES=10.0.0.11 172.27.0.0/16

      - maintenance_window_start=6

      - overwrite.cli.url=https://nc.sol2charon.us

      - redis.host=redis

      - redis.port=6379               

      - SMTP_HOST=smtp.mailgun.org

      - SMTP_SECURE=tls # or 'tls', or empty for none

      - SMTP_PORT=587 # or 587 for TLS

      - SMTP_AUTHTYPE=LOGIN

      - SMTP_NAME=<SECURE>

      - SMTP_PASSWORD=<SECURE>

      - MAIL_FROM_ADDRESS=nextcloud # e.g., 'nextcloud' in 'nextcloud@domain.com'

      - MAIL_DOMAIN=sol2charon.us

    healthcheck:

      test: ["CMD", "curl", "-f", "http://localhost/status.php"]

      interval: 30s

      timeout: 10s

      retries: 3

      start_period: 40s

    extra_hosts:

      - "nc.sol2charon.us:172.27.0.1"

      - "collabora.sol2charon.us:172.27.0.1"

  redis:

    image: redis:alpine

    restart: unless-stopped

    volumes:

      - ./redis_data:/data

    networks:

      - nextcloud_network

    healthcheck:

      test: ["CMD", "redis-cli", "ping"]

      interval: 10s

      timeout: 3s

      retries: 5         

  appapi-harp:

    image: ghcr.io/nextcloud/nextcloud-appapi-harp:release

    container_name: appapi-harp

    restart: unless-stopped

    environment:

      - HP_SHARED_KEY=<SECURE>

      - NC_INSTANCE_URL=https://nc.sol2charon.us

    volumes:

      - /var/run/docker.sock:/var/run/docker.sock

      - ./harp-certs:/certs

    networks:

      - nextcloud_network      

  notify-push:

    image: icewind1991/notify_push:latest

    restart: unless-stopped

    depends_on:

      redis:

        condition: service_healthy

      nextcloud:

        condition: service_healthy        

    environment:

      - PORT=7867

      - NEXTCLOUD_URL=http://nextcloud # Use the internal Docker service name

      - REDIS_URL=redis://redis:6379

      - DATABASE_URL=postgres://<SECURE>:<SECURE>@10.0.0.11:5432/nextcloud_db

    volumes:

      - /mnt/docker_nfs/nextcloud:/var/www/html # Mount the same volume as your nextcloud service

    networks:

      - nextcloud_network

      

volumes:

  nextcloud_data:




networks:

  nextcloud_network:

    external: true

I am certain this is something very simple to correct but AI has not been able to get me there. I have also noticed that for some reason discovery is attempting to use http instead of https. Obviously not being able to use the collabora server means that I cannot open any docx etc.

image
image2076×632 54 KB

There is also a problem connecting to redis even though it is running without errors in the same stack.

tail end of Redis log

1:M 04 Feb 2026 15:17:45.579 * Server initialized

1:M 04 Feb 2026 15:17:45.581 * <search> Loading event starts

1:M 04 Feb 2026 15:17:45.581 * <search> Changing workers threadpool size from 0 to 4

1:M 04 Feb 2026 15:17:45.581 * <search> Enabled workers threadpool of size 4

1:M 04 Feb 2026 15:17:45.581 * Loading RDB produced by version 8.4.0

1:M 04 Feb 2026 15:17:45.581 * RDB age 693 seconds

1:M 04 Feb 2026 15:17:45.581 * RDB memory usage when created 1.16 Mb

1:M 04 Feb 2026 15:17:45.581 * Done loading RDB, keys loaded: 0, keys expired: 0.

1:M 04 Feb 2026 15:17:45.581 * <search> Changing workers threadpool size from 4 to 0

1:M 04 Feb 2026 15:17:45.581 * <search> Disabled workers threadpool of size 4

1:M 04 Feb 2026 15:17:45.581 * <search> Loading event ends

1:M 04 Feb 2026 15:17:45.581 * DB loaded from disk: 0.003 seconds

1:M 04 Feb 2026 15:17:45.581 * Ready to accept connections tcp

Log entries

Nextcloud

Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.

{"reqId":"XtXDFm84A4eUU2dpItLv","level":4,"time":"2026-02-04T16:16:58+00:00","remoteAddr":"172.70.55.232","user":"gjblajian","app":"no app in context","method":"GET","url":"/apps/logreader/api/log?offset=0&query=","scriptName":"/index.php","message":"Could not boot notify_push: Connection refused","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36","version":"32.0.5.0","exception":{"Exception":"RedisException","Message":"Connection refused","Code":0,"Trace":[{"file":"/var/www/html/lib/private/RedisFactory.php","line":104,"function":"pconnect","class":"Redis","type":"->","args":["127.0.0.1",6379,0,null,0,0]},{"file":"/var/www/html/lib/private/RedisFactory.php","line":148,"function":"create","class":"OC\\RedisFactory","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/custom_apps/notify_push/lib/Queue/PushRedisFactory.php","line":38,"function":"getInstance","class":"OC\\RedisFactory","type":"->","args":[]},{"file":"/var/www/html/custom_apps/notify_push/lib/AppInfo/Application.php","line":46,"function":"getRedis","class":"OCA\\NotifyPush\\Queue\\PushRedisFactory","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":169,"function":"OCA\\NotifyPush\\AppInfo\\{closure}","class":"OCA\\NotifyPush\\AppInfo\\Application","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/pimple/pimple/src/Pimple/Container.php","line":122,"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":136,"function":"offsetGet","class":"Pimple\\Container","type":"->","args":["OCA\\NotifyPush\\Queue\\IQueue"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":346,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\NotifyPush\\Queue\\IQueue"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":324,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\NotifyPush\\Queue\\IQueue"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":90,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\NotifyPush\\Queue\\IQueue",true]},{"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":77,"function":"array_map","args":[{"__class__":"Closure"},["*** sensitive parameters replaced ***"]]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":72,"function":"buildClassConstructorParameters","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":[{"__class__":"ReflectionMethod","name":"__construct","class":"OCA\\NotifyPush\\Listener"}]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":122,"function":"buildClass","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":[{"__class__":"ReflectionClass","name":"OCA\\NotifyPush\\Listener"}]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":140,"function":"resolve","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\NotifyPush\\Listener"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":352,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\NotifyPush\\Listener"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":324,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\NotifyPush\\Listener"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":45,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\NotifyPush\\Listener"]},{"file":"/var/www/html/lib/private/AppFramework/Bootstrap/FunctionInjector.php","line":32,"function":"get","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\NotifyPush\\Listener"]},{"function":"OC\\AppFramework\\Bootstrap\\{closure}","class":"OC\\AppFramework\\Bootstrap\\FunctionInjector","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Bootstrap/FunctionInjector.php","line":28,"function":"array_map","args":[{"__class__":"Closure"},[{"__class__":"ReflectionParameter","name":"eventDispatcher"},"*** sensitive parameters replaced ***",{"__class__":"ReflectionParameter","name":"activityManager"},{"__class__":"ReflectionParameter","name":"notificationManager"}]]},{"file":"/var/www/html/lib/private/AppFramework/Bootstrap/BootContext.php","line":32,"function":"injectFn","class":"OC\\AppFramework\\Bootstrap\\FunctionInjector","type":"->","args":[[{"__class__":"OCA\\NotifyPush\\AppInfo\\Application"},"attachHooks"]]},{"file":"/var/www/html/custom_apps/notify_push/lib/AppInfo/Application.php","line":56,"function":"injectFn","class":"OC\\AppFramework\\Bootstrap\\BootContext","type":"->","args":[[{"__class__":"OCA\\NotifyPush\\AppInfo\\Application"},"attachHooks"]]},{"file":"/var/www/html/lib/private/AppFramework/Bootstrap/Coordinator.php","line":170,"function":"boot","class":"OCA\\NotifyPush\\AppInfo\\Application","type":"->","args":[{"__class__":"OC\\AppFramework\\Bootstrap\\BootContext"}]},{"file":"/var/www/html/lib/private/App/AppManager.php","line":481,"function":"bootApp","class":"OC\\AppFramework\\Bootstrap\\Coordinator","type":"->","args":["notify_push"]},{"file":"/var/www/html/lib/private/App/AppManager.php","line":273,"function":"loadApp","class":"OC\\App\\AppManager","type":"->","args":["notify_push"]},{"file":"/var/www/html/lib/base.php","line":1021,"function":"loadApps","class":"OC\\App\\AppManager","type":"->","args":[]},{"file":"/var/www/html/index.php","line":25,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/RedisFactory.php","Line":104,"message":"Could not boot notify_push: Connection refused","exception":[],"CustomMessage":"Could not boot notify_push: Connection refused"},"id":"698370fa46700"}

Web Browser

If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.

PASTE

Web server / Reverse Proxy

The output of your Apache/nginx/system log in /var/log/____:

image
image808×946 37.5 KB

image
image802×681 22 KB

image
image801×539 21.7 KB

PASTE HERE

Configuration

Nextcloud

The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):

<?php
$CONFIG = array (
  'htaccess.RewriteBase' => '/',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'apps_paths' => 
  array (
    0 => 
    array (
      'path' => '/var/www/html/apps',
      'url' => '/apps',
      'writable' => false,
    ),
    1 => 
    array (
      'path' => '/var/www/html/custom_apps',
      'url' => '/custom_apps',
      'writable' => true,
    ),
  ),
  'upgrade.disable-web' => true,
  'instanceid' => 'ocyssbwjmyqv',
  'passwordsalt' => <SECURE>,
  'secret' => <SECURE>,
  'trusted_domains' => 
  array (
    0 => '10.0.0.11:38080',
    1 => 'nc.sol2charon.us',
  ),
  'datadirectory' => '/var/www/html/data',
  'dbtype' => 'pgsql',
  'version' => '32.0.5.0',
  'overwrite.cli.url' => 'https://172.27.0.1',
  'dbname' => 'nextcloud_db',
  'dbhost' => '10.0.0.11',
  'dbtableprefix' => 'oc_',
  'dbuser' => <SECURE>,
  'dbpassword' => <SECURE>,
  'installed' => true,
  'overwriteprotocol' => 'https',
  'trusted_proxies' => 
  array (
    0 => '10.0.0.11',
    1 => '172.27.0.0/16',
  ),
  'maintenance_window_start' => 6,
  'maintenance' => false,
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'default_phone_region' => 'US',
  'mail_smtpmode' => 'smtp',
  'mail_smtphost' => 'smtp.mailgun.org',
  'mail_smtpport' => '587',
  'mail_smtpsecure' => 'tls',
  'mail_smtpauth' => true,
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpname' => <SECURE>,
  'mail_from_address' => 'nextcloud',
  'mail_domain' => 'sol2charon.us',
  'mail_smtppassword' => <SECURE>,
  'mail_smtpdebug' => 'true',
  'loglevel' => '0',
  'forbidden_filename_basenames' => 
  array (
    0 => 'con',
    1 => 'prn',
    2 => 'aux',
    3 => 'nul',
    4 => 'com0',
    5 => 'com1',
    6 => 'com2',
    7 => 'com3',
    8 => 'com4',
    9 => 'com5',
    10 => 'com6',
    11 => 'com7',
    12 => 'com8',
    13 => 'com9',
    14 => 'com¹',
    15 => 'com²',
    16 => 'com³',
    17 => 'lpt0',
    18 => 'lpt1',
    19 => 'lpt2',
    20 => 'lpt3',
    21 => 'lpt4',
    22 => 'lpt5',
    23 => 'lpt6',
    24 => 'lpt7',
    25 => 'lpt8',
    26 => 'lpt9',
    27 => 'lpt¹',
    28 => 'lpt²',
    29 => 'lpt³',
  ),
  'forbidden_filename_characters' => 
  array (
    0 => '<',
    1 => '>',
    2 => ':',
    3 => '"',
    4 => '|',
    5 => '?',
    6 => '*',
    7 => '\\',
    8 => '/',
  ),
  'forbidden_filename_extensions' => 
  array (
    0 => ' ',
    1 => '.',
    2 => '.filepart',
    3 => '.part',
  ),
  'config_preset' => 2,
);

Apps

The output of occ app:list (if possible).

apps

$ docker exec nextcloud php occ app:list
Enabled:

activity: 5.0.0-dev.0

app_api: 32.0.0

bruteforcesettings: 5.0.0-dev.0

calendar: 6.1.6

circles: 32.0.0

cloud_federation_api: 1.16.0

comments: 1.22.0

contacts: 8.3.1

contactsinteraction: 1.13.1

dashboard: 7.12.0

dav: 1.34.2

federatedfilesharing: 1.22.0

federation: 1.22.0

files: 2.4.0

files_downloadlimit: 5.0.0-dev.0

files_pdfviewer: 5.0.0-dev.0

files_reminders: 1.5.0

files_sharing: 1.24.1

files_trashbin: 1.22.0

files_versions: 1.25.0

firstrunwizard: 5.0.0-dev.0

guests: 4.6.0

logreader: 5.0.0-dev.0

lookup_server_connector: 1.20.0

mail: 5.6.10

nextcloud_announcements: 4.0.0-dev.0

notes: 4.13.0

notifications: 5.0.0-dev.0

notify_push: 1.3.0

oauth2: 1.20.0

password_policy: 4.0.0-dev.0

photos: 5.0.0-dev.1

privacy: 4.0.0-dev.0

profile: 1.1.0

provisioning_api: 1.22.0

recommendations: 5.0.0-dev.0

related_resources: 3.0.0-dev.0

richdocuments: 9.0.2

serverinfo: 4.0.0-dev.0

settings: 1.15.1

sharebymail: 1.22.0

spreed: 22.0.8

support: 4.0.0-dev.0

survey_client: 4.0.0-dev.0

systemtags: 1.22.0

text: 6.0.1

theming: 2.7.0

twofactor_backupcodes: 1.21.0

updatenotification: 1.22.0

user_status: 1.12.0

viewer: 5.0.0-dev.0

weather_status: 1.12.0

webhook_listeners: 1.3.0

workflowengine: 2.14.0
Disabled:

admin_audit: 1.22.0

encryption: 2.20.0

files_external: 1.24.1

suspicious_login: 10.0.0-dev.0

twofactor_nextcloud_notification: 6.0.0-dev.0

twofactor_totp: 14.0.0

user_ldap: 1.23.0

Tips for increasing the likelihood of a response

  • Use the preformatted text formatting option in the editor for all log entries and configuration output.
  • If screenshots are useful, feel free to include them.
    • If possible, also include key error output in text form so it can be searched for.
  • Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.