Hi there! I’m a longtime OwnCloud user. First of all, let me take this chance to congratulate with the OwnCloud team for creating such a great software. I am managing a few installs and all of them are working flawlessly! 
This post is about my personal 10.6 community install, which is located at http://myhostname/owncloud. It’s been working like that for many years, but, after upgrading to 10.5 (10.6 now), such url does not work anymore. I can now only login by using the IP url http://192.168.1.1/owncloud.
Steps to reproduce
Not sure. Could it be related to having a “simple” hostname without any dot in it?
Expected behaviour
I would expect to login succesfully
Actual behaviour
Any login attempt receives a redirect back to the login page. In the log, two lines are written:
{"reqId":"X7229XtXww8nwU1aLSOQ","level":2,"time":"2020-12-30T00:06:29+00:00","remoteAddr":"192.168.1.2","user":"bodom","app":"core","method":"GET","url":"\/owncloud\/index.php\/settings\/admin?sectionid=general","message":"Login failed: 'admin' (Remote IP: '192.168.1.2')"} {"reqId":"X7229XtXww8nwU1aLSOQ","level":2,"time":"2020-12-30T00:06:29+00:00","remoteAddr":"192.168.1.2","user":"--","app":"core","method":"GET","url":"\/owncloud\/index.php\/settings\/admin?sectionid=general","message":"Login failed: 'admin' (Remote IP: '192.168.1.2')"}
Server configuration
Operating system: Ubuntu GNU/Linux 20.04 LTS
Web server: Apache 2.4
Database: MySQL 8.0
PHP version: 7.4
ownCloud version: 10.6
Updated from an older ownCloud or fresh install: updated many times
Where did you install ownCloud from: tarball
Signing status (ownCloud 9.0 and above): No errors have been found.
The content of config/config.php:
{
"basic": {
"license key": "***REMOVED SENSITIVE VALUE***",
"date": "Wed, 30 Dec 2020 00:12:23 +0000",
"ownCloud version": "10.6.0.5",
"ownCloud version string": "10.6.0",
"ownCloud edition": "Community",
"server OS": "Linux",
"server OS version": "Linux myhostname 5.4.0-56-generic #62-Ubuntu SMP Mon Nov 23 19:20:19 UTC 2020 x86_64",
"server SAPI": "apache2handler",
"webserver version": "Apache\/2.4.41 (Ubuntu)",
"hostname": "192.168.1.1",
"logged-in user": "bodom"
},
"stats": {
"users": {
"Database": {
"count": 1,
"seen": 1,
"logged in (30 days)": 1
}
},
"groups": {
"OC\\Group\\Database": 1
}
},
"config": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"myhostname",
"192.168.1.1"
],
"datadirectory": "\/home\/data\/OwnCloud",
"overwrite.cli.url": "http:\/\/myhostname\/owncloud",
"dbtype": "mysql",
"version": "10.6.0.5",
"dbname": "owncloud",
"dbhost": "localhost",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"logtimezone": "UTC",
"installed": true,
"maintenance": false,
"loglevel": 2,
"trashbin_retention_obligation": "7",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "php",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"updatechecker": true,
"updater.server.url": "https:\/\/updates.owncloud.com\/server\/",
"theme": "",
"updater.secret": "***REMOVED SENSITIVE VALUE***",
"has_rebuilt_cache": true
},
"integritychecker": {
"passing": true,
"enabled": true,
"result": []
},
"core": {
"backgroundjobs_mode": "cron",
"installedat": "1440805542.686",
"lastcron": "1491384604",
"lastupdateResult": "[]",
"lastupdatedat": "1609286980",
"public_caldav": "calendar\/share.php",
"public_calendar": "calendar\/share.php",
"public_files": "files_sharing\/public.php",
"public_gallery": "gallery\/public.php",
"public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
"remote_caldav": "dav\/appinfo\/v1\/caldav.php",
"remote_calendar": "dav\/appinfo\/v1\/caldav.php",
"remote_carddav": "dav\/appinfo\/v1\/carddav.php",
"remote_contacts": "dav\/appinfo\/v1\/carddav.php",
"remote_dav": "dav\/appinfo\/v2\/remote.php",
"remote_files": "dav\/appinfo\/v1\/webdav.php",
"remote_webdav": "dav\/appinfo\/v1\/webdav.php",
"repairlegacystoragesdone": "yes",
"shareapi_allow_mail_notification": "no",
"shareapi_allow_public_notification": "no",
"updater.secret.created": "1591350714",
"vendor": "owncloud"
},
List of activated apps:
- activity: 2.6.0
- calendar: 1.6.4
- comments: 0.3.0
- configreport: 0.2.0
- contacts: 1.5.5
- dav: 0.6.0
- federatedfilesharing: 0.5.0
- federation: 0.1.0
- files: 1.5.2
- files_external: 0.7.1
- files_mediaviewer: 1.0.3
- files_pdfviewer: 0.11.2
- files_sharing: 0.14.0
- files_texteditor: 2.3.0
- files_trashbin: 0.9.1
- files_versions: 1.3.0
- firstrunwizard: 1.2.0
- gallery: 16.1.1
- market: 0.6.0
- notifications: 0.5.2
- provisioning_api: 0.5.0
- systemtags: 0.3.0
- tasks: 0.9.7
- templateeditor: 0.4.0
- updatenotification: 0.2.1
Are you using external storage, if yes which one: no
Are you using encryption: no
Are you using an external user-backend, if yes which one: no
Client configuration
Browser: Firefox 84.0
Operating system: Ubuntu GNU/Linux 20.04 LTS
Logs
Web server error log
nothing relevant, almost empty, last message:
[Wed Dec 30 00:36:19.598333 2020] [mpm_prefork:notice] [pid 1516313] AH00163: Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1f configured -- resuming normal operations
ownCloud log (data/owncloud.log)
please see at the beginning of the post
Browser log
looks like nothing different than when accessing it by IP address
Thank you in advance for any help in troubleshooting and solving this issue.