Nextcloud version (eg, 20.0.5): 24.0.12
Operating system and version (eg, Ubuntu 20.04): Debian Buster
Apache or nginx version (eg, Apache 2.4.25): nginx version: nginx/1.14.2
PHP version (eg, 7.4): 8.1 fpm
I’ve upgraded PHP from version 7.4 to 8.1 in advance of the upgrade to Nextcloud 25.0.8. Nextcloud is running well, the overview says everything is running fine but curl is throwing curl error 6 when trying to access nextcloud app store and when running the upgrade;
CURLE_COULDNT_RESOLVE_HOST (6)
Could not resolve host. The given remote host was not resolved.
The server is running dnsmasq and is successfully resolving DNS requests, but not via PHP it seems. php-curl and php8.1-curl packages are both installed. Running the manual updater gives this error when downloading the update;
[✘] Downloading failed
Curl error: Could not resolve host: download.nextcloud.com
Update failed. To resume or retry just execute the updater again.
Is this the first time you’ve seen this error? (Y/N): Yes
Steps to replicate it:
- Upgrade from PHP 7.4 to 8.1
- Run the updater
The output of your Nextcloud log in Admin > Logging:
{"reqId":"XXXXXXXXXX","level":3,"time":"2023-07-02T00:08:01+01:00","remoteAddr":"XX.XX.XX.XX","user":"user","app":"internet_connection_check","method":"GET","url":"/settings/ajax/checksetup","message":"Cannot connect to: www.nextcloud.com","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0","version":"24.0.12.1","exception":{"Exception":"GuzzleHttp\\Exception\\ConnectException","Message":"cURL error 6: Could not resolve host: www.nextcloud.com (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://www.nextcloud.com/","Code":0,"Trace":[{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":158,"function":"createRejection","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":110,"function":"finishError","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlHandler.php","line":47,"function":"finish","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/Proxy.php","line":28,"function":"__invoke","class":"GuzzleHttp\\Handler\\CurlHandler","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/Proxy.php","line":48,"function":"GuzzleHttp\\Handler\\{closure}","class":"GuzzleHttp\\Handler\\Proxy","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Http/Client/DnsPinMiddleware.php","line":113,"function":"GuzzleHttp\\Handler\\{closure}","class":"GuzzleHttp\\Handler\\Proxy","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/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/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":31,"function":"__invoke","class":"GuzzleHttp\\PrepareBodyMiddleware","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/RedirectMiddleware.php","line":71,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":63,"function":"__invoke","class":"GuzzleHttp\\RedirectMiddleware","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/HandlerStack.php","line":75,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":331,"function":"__invoke","class":"GuzzleHttp\\HandlerStack","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":168,"function":"transfer","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":187,"function":"requestAsync","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/lib/private/Http/Client/Client.php","line":218,"function":"request","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/apps/settings/lib/Controller/CheckSetupController.php","line":211,"function":"get","class":"OC\\Http\\Client\\Client","type":"->"},{"file":"/var/www/nextcloud/apps/settings/lib/Controller/CheckSetupController.php","line":193,"function":"isSiteReachable","class":"OCA\\Settings\\Controller\\CheckSetupController","type":"->"},{"file":"/var/www/nextcloud/apps/settings/lib/Controller/CheckSetupController.php","line":862,"function":"hasInternetConnectivityProblems","class":"OCA\\Settings\\Controller\\CheckSetupController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":225,"function":"check","class":"OCA\\Settings\\Controller\\CheckSetupController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":133,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":172,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":298,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1030,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","Line":210,"message":"Cannot connect to: www.nextcloud.com","exception":[],"CustomMessage":"Cannot connect to: www.nextcloud.com"},"id":"64a0b3beb36a7"}
and
{"reqId":"XXXXXXXX","level":2,"time":"2023-07-02T00:08:01+01:00","remoteAddr":"XX.XX.XX.XX","user":"user","app":"appstoreFetcher","method":"GET","url":"/ocs/v2.php/apps/updatenotification/api/v1/applist/25.0.8.2","message":"Could not connect to appstore: cURL error 6: Could not resolve host: apps.nextcloud.com (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://apps.nextcloud.com/api/v1/apps.json","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0","version":"24.0.12.1","data":{"app":"appstoreFetcher"},"id":"64a0b3beb361f"}
Most of the previous reports of this error are resolved by restarting php, which doesn’t help in this case. I’ve also tried manually adding the addresses to the /etc/hosts file but PHP seems to ignore it. There are no errors appearing in the nginx error.log. Checking curl with php suggests it is enabled.
php --ri curl
curl
cURL support => enabled
cURL Information => 7.64.0
Age => 4
Features
AsynchDNS => Yes
CharConv => No
Debug => No
GSS-Negotiate => No
IDN => Yes
IPv6 => Yes
krb4 => No
Largefile => Yes
libz => Yes
NTLM => Yes
NTLMWB => Yes
SPNEGO => Yes
SSL => Yes
SSPI => No
TLS-SRP => Yes
HTTP2 => Yes
GSSAPI => Yes
KERBEROS5 => Yes
UNIX_SOCKETS => Yes
PSL => Yes
HTTPS_PROXY => Yes
MULTI_SSL => No
BROTLI => No
Protocols => dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtmp, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp
Host => x86_64-pc-linux-gnu
SSL Version => OpenSSL/1.1.1n
ZLib Version => 1.2.11
libSSH Version => libssh2/1.8.0
Directive => Local Value => Master Value
curl.cainfo => no value => no value
Does anyone have any ideas why this is happening or how to debug this further ?
Cheers!