Support intro
Sorry to hear you’re facing problems. 
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Getting help
In order to help you as efficiently (and quickly!) as possible, please fill in as much of the below requested information as you can.
Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
(Utilizing these existing resources is typically faster. It also helps reduce the load on our generous volunteers while elevating the signal to noise ratio of the forums otherwise arising from the same queries being posted repeatedly).
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- Nextcloud Hub 10 (31.0.9)
- Operating system and version (e.g., Ubuntu 24.04):
- Linux 6.12.48+deb13-amd64 x86_64
- Web server and version (e.g, Apache 2.4.25):
- Apache/2.4.65
- Reverse proxy and version _(e.g. nginx 1.27.2)
nginx
- PHP version (e.g, 8.3):
- 8.3.25
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
after installation
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
nextcloud aio via docker
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
Federation not possible
Steps to replicate it (hint: details matter!):
-
Go to settings→Share
-
add trusted server
-
error. Server not found
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":"E5wT3nJ2ia7QsF4q2eh7","level":3,"time":"2025-10-09T06:47:29+00:00","remoteAddr":"194.24.159.132","user":"jakobus.schuerz","app":"federation","method":"POST","url":"/ocs/v2.php/apps/federation/trusted-servers","message":"No Nextcloud server.","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0","version":"31.0.9.1","exception":{"Exception":"GuzzleHttp\\Exception\\ConnectException","Message":"cURL error 28: Resolving timed out after 3002 milliseconds (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://nextcloud.schuerz.at/status.php","Code":0,"Trace":[{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":205,"function":"createRejection","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":157,"function":"finishError","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::","args":[{"__class__":"GuzzleHttp\\Handler\\CurlHandler"},"*** sensitive parameters replaced ***",{"__class__":"GuzzleHttp\\Handler\\CurlFactory"}]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlHandler.php","line":47,"function":"finish","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::","args":[{"__class__":"GuzzleHttp\\Handler\\CurlHandler"},"*** sensitive parameters replaced ***",{"__class__":"GuzzleHttp\\Handler\\CurlFactory"}]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":142,"function":"__invoke","class":"GuzzleHttp\\Handler\\CurlHandler","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/Http/Client/DnsPinMiddleware.php","line":109,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php","line":35,"function":"OC\\Http\\Client\\{closure}","class":"OC\\Http\\Client\\DnsPinMiddleware","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":31,"function":"__invoke","class":"GuzzleHttp\\PrepareBodyMiddleware","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/RedirectMiddleware.php","line":71,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":66,"function":"__invoke","class":"GuzzleHttp\\RedirectMiddleware","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/HandlerStack.php","line":75,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Client.php","line":333,"function":"__invoke","class":"GuzzleHttp\\HandlerStack","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Client.php","line":169,"function":"transfer","class":"GuzzleHttp\\Client","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Client.php","line":189,"function":"requestAsync","class":"GuzzleHttp\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/Http/Client/Client.php","line":206,"function":"request","class":"GuzzleHttp\\Client","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***",{"0":"And 1 more entries, set log level to debug to see all entries","verify":true,"timeout":3,"connect_timeout":3,"nextcloud":{"allow_local_address":true},"headers":{"User-Agent":"Nextcloud Server Crawler","Accept-Encoding":"gzip"}}]},{"file":"/var/www/html/apps/federation/lib/TrustedServers.php","line":156,"function":"get","class":"OC\\Http\\Client\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/apps/federation/lib/Controller/SettingsController.php","line":121,"function":"isNextcloudServer","class":"OCA\\Federation\\TrustedServers","type":"->","args":["https://nextcloud.schuerz.at"]},{"file":"/var/www/html/apps/federation/lib/Controller/SettingsController.php","line":48,"function":"checkServer","class":"OCA\\Federation\\Controller\\SettingsController","type":"->","args":["https://nextcloud.schuerz.at"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":200,"function":"addServer","class":"OCA\\Federation\\Controller\\SettingsController","type":"->","args":["https://nextcloud.schuerz.at"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":114,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Federation\\Controller\\SettingsController"},"addServer"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":161,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Federation\\Controller\\SettingsController"},"addServer"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":315,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Federation\\Controller\\SettingsController","addServer",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"ocs.federation.settings.addserver"}]},{"file":"/var/www/html/ocs/v1.php","line":49,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/ocsapp/apps/federation/trusted-servers"]},{"file":"/var/www/html/ocs/v2.php","line":7,"args":["/var/www/html/ocs/v1.php"],"function":"require_once"}],"File":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","Line":275,"message":"No Nextcloud server.","exception":[],"CustomMessage":"No Nextcloud server."},"id":"68e75a879b9ed"}
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.
POST
https://nc.schuerz.at/ocs/v2.php/apps/federation/trusted-servers
STATUS 404
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
POST /ocs/v2.php/apps/federation/trusted-servers HTTP/2.0" 404
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!):
/var/www/html $ ./occ config:list system
{
"system": {
"debug": true,
"loglevel": 2,
"one-click-instance": true,
"one-click-instance.user-limit": 100,
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"check_data_directory_permissions": false,
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"password": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"overwritehost": "nc.schuerz.at",
"overwriteprotocol": "https",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"localhost",
"nc.schuerz.at"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "pgsql",
"version": "31.0.9.1",
"overwrite.cli.url": "https:\/\/nc.schuerz.at\/",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"updatechecker": false,
"log_type": "file",
"logfile": "\/var\/www\/html\/data\/nextcloud.log",
"log_rotate_size": 10485760,
"log.condition": {
"apps": [
"admin_audit"
]
},
"preview_max_x": 2048,
"preview_max_y": 2048,
"jpeg_quality": 60,
"enabledPreviewProviders": {
"1": "OC\\Preview\\Image",
"2": "OC\\Preview\\MarkDown",
"3": "OC\\Preview\\MP3",
"4": "OC\\Preview\\TXT",
"5": "OC\\Preview\\OpenDocument",
"6": "OC\\Preview\\Movie",
"7": "OC\\Preview\\Krita",
"0": "OC\\Preview\\Imaginary",
"23": "OC\\Preview\\ImaginaryPDF"
},
"enable_previews": true,
"upgrade.disable-web": true,
"mail_smtpmode": "smtp",
"trashbin_retention_obligation": "auto, 30",
"versions_retention_obligation": "auto, 30",
"activity_expire_days": 30,
"simpleSignUpLink.shown": false,
"share_folder": "\/Shared",
"one-click-instance.link": "https:\/\/nextcloud.com\/all-in-one\/",
"upgrade.cli-upgrade-link": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/2726",
"updatedirectory": "\/nc-updater",
"maintenance_window_start": 100,
"allow_local_remote_servers": true,
"davstorage.request_timeout": 3600,
"documentation_url.server_logs": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/5425",
"htaccess.RewriteBase": "\/",
"dbpersistent": false,
"auth.bruteforce.protection.enabled": true,
"ratelimit.protection.enabled": true,
"files_external_allow_create_new_local": false,
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
"preview_imaginary_key": "***REMOVED SENSITIVE VALUE***",
"facerecognition.external_model_url": "nextcloud-aio-facerecognition:5000",
"facerecognition.external_model_api_key": "910a37b3a89a7c47964eca0195ee74f17b3d7e00955e5b60",
"enabledFaceRecognitionMimetype": [
"image\/jpeg",
"image\/png",
"image\/heic",
"image\/tiff",
"image\/webp"
],
"memories.db.triggers.fcu": true,
"memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-musl",
"memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64",
"memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
"memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
"memories.vod.external": true,
"memories.vod.connect": "nextcloud-aio-memories:47788",
"allow_user_to_change_display_name": false,
"lost_password_link": "disabled",
"app_install_overwrite": [
"globalsiteselector"
],
"DOMAIN": "nc.schuerz.at"
}
}
Apps
The output of occ app:list (if possible).
/var/www/html $ ./occ app:list
Enabled:
- activity: 4.0.0
- admin_audit: 1.21.0
- assistant: 2.8.0
- bruteforcesettings: 4.0.0
- calendar: 5.5.6
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- collectives: 3.2.0
- comments: 1.21.0
- contacts: 7.3.3
- contactsinteraction: 1.12.0
- cookbook: 0.11.4
- cospend: 3.1.3
- dashboard: 7.11.0
- dav: 1.33.0
- deck: 1.15.3
- facerecognition: 0.9.70
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadactivity: 1.18.1
- files_downloadlimit: 4.0.0
- files_external: 1.23.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- forms: 5.2.1
- gpoddersync: 3.12.0
- groupfolders: 19.1.7
- impersonate: 2.0.0
- integration_oidc: 0.1.6
- integration_openai: 3.7.1
- intros: 1.1.2
- journeys: 0.7.3
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- maps: 1.6.0
- memories: 7.7.0
- music: 2.4.0
- nextcloud-aio: 0.8.0
- nextcloud_announcements: 3.0.0
- nextpod: 0.7.8
- notes: 4.12.3
- notifications: 4.0.0
- notify_push: 1.2.0
- oauth2: 1.19.1
- oidc_login: 3.2.2
- ownershiptransfer: 1.3.0
- password_policy: 3.0.0
- photos: 4.0.0
- polls: 8.5.0
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- richdocuments: 8.7.5
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- spreed: 21.1.5
- support: 3.0.0
- survey_client: 3.0.0
- systemtags: 1.21.1
- tables: 0.9.5
- tasks: 0.16.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- twofactor_totp: 13.0.0-dev.0
- updatenotification: 1.21.0
- user_oidc: 8.0.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- whiteboard: 1.2.1
- workflow_script: 2.0.0
- workflowengine: 2.13.0
Disabled:
- app_api: 5.0.2 (installed 5.0.2)
- encryption: 2.19.0
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- user_ldap: 1.22.0
Notes
I entered the nextcloud-aio-nextcloud container and run curl from shell manuall:
~: # docker exec --user=www-data -ti nextcloud-aio-nextcloud curl https://nextcloud.schuerz.at/status.php
{"installed":true,"maintenance":false,"needsDbUpgrade":false,"ve...
and got back the status-page of the nextcloud i wanted to add as trusted server. So name-resolving and networking is ok inside the container. But NOT for php/nextcloud itself.
This is a fresh installation.
Thank you for help.
Jakob