Problem with loading collabora online. cURL error 28

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1

Hi, I installed Collabora Online, but when I try to open file there is message “Failed to load Collabora Online - please try again later” and record in logs:

          [richdocuments] Error: GuzzleHttp\Exception\ConnectException: cURL error 28: Connection timed out after 5001 milliseconds (see http://curl.haxx.se/libcurl/c/libcurl-errors.html) at <<closure>>
     0. /var/www/html/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php line 149
        GuzzleHttp\Handler\CurlFactory::createRejection(GuzzleHttp\Handl ... l}, {errno: 28,error ... 0})

et cetera.

Request “https://doc.inplay.space/loleaflet/dist/loleaflet.html” is working, but give mistake: “Wrong WOPIsrc” - i think, that apache proxy work well.

OS: Ubuntu 18.04 LTS
NC: 16.0.3
Apache2

I stucked, I would appreciate for any help and ideas, thanks!

2

Hey Crocodeev,

I had the same problem. My solution was to install the newest version of Docker and to run these 2 commands from the Docker Enginge Docs. https://docs.docker.com/install/linux/docker-ce/ubuntu/

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo apt-key fingerprint 0EBFCD88

add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

sudo reboot

I hope this solve your problem :slight_smile: if not please send us here your Apache Reverse Config :smiley:

regards

matzemagdocker

3

Unfortunately, it didn’t help for me, this is my apache config

<VirtualHost *:443>
ServerName my.domain.com:443

# SSL configuration, you may want to take the easy route instead and use Lets Encrypt!
SSLEngine on
SSLCertificateFile /etc/ssl/my_domain_com/my_domain_com.crt
SSLCertificateChainFile /etc/ssl/my_domain_com/my_domain_com-bundle
SSLCertificateKeyFile /etc/ssl/my_domain_com/my_domain_com.key
SSLProtocol             all -SSLv2 -SSLv3
SSLCipherSuite ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:E$
SSLHonorCipherOrder     on

# Encoded slashes need to be allowed
AllowEncodedSlashes NoDecode

# Container uses a unique non-signed certificate
SSLProxyEngine On
SSLProxyVerify None
SSLProxyCheckPeerCN Off
SSLProxyCheckPeerName Off

# keep the host
ProxyPreserveHost On

# static html, js, images, etc. served from loolwsd
# loleaflet is the client part of LibreOffice Online
ProxyPass           /loleaflet https://127.0.0.1:9980/loleaflet retry=0
ProxyPassReverse    /loleaflet https://127.0.0.1:9980/loleaflet

# WOPI discovery URL
ProxyPass           /hosting/discovery https://127.0.0.1:9980/hosting/discovery retry=0
ProxyPassReverse    /hosting/discovery https://127.0.0.1:9980/hosting/discovery

# Main websocket
ProxyPassMatch "/lool/(.*)/ws$" wss://127.0.0.1:9980/lool/$1/ws nocanon

# Admin Console websocket
ProxyPass   /lool/adminws wss://127.0.0.1:9980/lool/adminws

# Download as, Fullscreen presentation and Image upload operations
ProxyPass           /lool https://127.0.0.1:9980/lool
ProxyPassReverse    /lool https://127.0.0.1:9980/lool

# Endpoint with information about availability of various features
ProxyPass           /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities retry=0
ProxyPassReverse    /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities
</VirtualHost>
4

IMHO main socket should be ws:/127.0.0.1 and not wss://, depends on CODE SSL settings (–o ssl-enable=false)

5

The loleaflet html is only one part of working configuration - and the same error is in my working “productive” config - you should also be able to load the /hosting/discovery site of your config.

You should set also the loglevel in /etc/lool/loolwsd.xml in your CODE container.
And please, do not post real URLs here for security reasons.

6

Thanks a lot for help, as it turned out, the cause of issue is in the NATs settings. I make some changes in the hosts files in collabora container and host machine. That’s allow communicate collabora and nextcloud in local network.

7

Can remimber what kind of things has been changed in the NATs settings (in docker hosts file) ? Private/public IP ? Nothing works here. Curl err 28. Thanks

8

Any info on what NAT setting changes you made?