Updated almost 9 years ago by Jessie Lee

• Table of contents
• Owncloud
• Owncloud Installation
  • Owncloud 8.1 on Debian 7 with Apache
  • Database setup (mySQL)
  • Enabling Samba external users
  • Samba External Storage
  • owncloud + nginx
  • Performance tweaks
  • Security and Hardening
  • For Office File servers
  • resource links

Owncloud¶

Owncloud has issues with .DS_Store files. At first I thought it was a Dropbox <-> Owncloud error, but then I turned off my Dropbox and was still getting the error. We need to figure out a way to have Owncloud exclude syncing .DS_Store files, or else it will generate a bunch of them. I don't know why it is doing so, but I have figured out how to delete them all:

Run this in the top of the Owncloud directory.

find ./ -type f -name ".DS_Stor*" -exec rm {} \;

Owncloud Installation¶

Owncloud 8.1 on Debian 7 with Apache¶

• Wheezy does not have Owncloud 7 or 8 in repository (Jessie has 7.0 but I highly recommend using 8 for webUI improvements and speed)
• Add the OpenSuse owncloud repository (this is maintained by owncloud devs)
• After adding sudo apt-get update && sudo apt-get install owncloud
• This should install owncloud to /var/www/owncloud, php, and mySQL
• This will also create a conf file in /etc/apache2/conf.d/owncloud.conf which adds configuration redirects domain.com/owncloud to the owncloud directory.
• contents of the conf file.

  Alias /owncloud "/var/www/owncloud/" 
  <Directory "/var/www/owncloud">
      Options +FollowSymLinks
      AllowOverride All
      Satisfy Any
      <IfModule mod_dav.c>
        Dav off
      </IfModule>
  
      SetEnv HOME /var/www/owncloud
      SetEnv HTTP_HOME /var/www/owncloud
  </Directory>
  
  <Directory "/var/www/owncloud/data/">
    # just in case if .htaccess gets disabled
    Require all denied
  </Directory>
  

• Set up Apache for owncloud access: For simple setups, edit the default-ssl config to point to ssl certs and enable with a2enmod default-ssl.
• restart apache
• go to https://domain.com/owncloud to start owncloud setup wizard.
• If changes need to be made after first time setup either run again from Apps or edit /var/www/owncloud/config/config.php by hand

Database setup (mySQL)¶

• make sure package php5-mysql is installed on system
• start mysql command line mode mysql -uroot -p

• CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
  CREATE DATABASE IF NOT EXISTS owncloud;
  GRANT ALL PRIVILEGES ON owncloud.* TO 'username'@'localhost' IDENTIFIED BY 'password';

• keep track of username and password as the owncloud setup wizard will need that.

Enabling Samba external users¶

• Enable external_user and external_storage apps (lefthand tab menu--->apps---->not enabled. enable them)
• for a local samba installation add the following to config.php

  "user_backends" => array (
      0 => array (
              "class"     => "OC_User_SMB",
              "arguments" => array (
                                0 => 'localhost'
                                ),
      ),
  ),

• users logging in with samba user and password should autocreate a user in owncloud. Permissions are not carried over!

Samba External Storage¶

• go to owncloud admin panel after enabling external_storage
• add share via interface.

owncloud + nginx¶

• Install php5-fpm and nginx with apt-get install php5-fpm nginx
• Uncomment "env[PATH] = /usr/local/bin:/usr/bin:/bin" in the file "/etc/php5/fpm/pool.d/www.conf"
• owncloud provides a fairly good base nginx site file to use for simple setups. copied below.
  

  upstream php-handler {
    #server 127.0.0.1:9000;
    server unix:/var/run/php5-fpm.sock;
    }
  
  server {
    listen 80;
    server_name cloud.example.com;
    # enforce https
    return 301 https://$server_name$request_uri;
    }
  
  server {
    listen 443 ssl;
    server_name cloud.example.com;
  
    ssl_certificate /etc/ssl/nginx/cloud.example.com.crt;
    ssl_certificate_key /etc/ssl/nginx/cloud.example.com.key;
  
    # Path to the root of your installation
    root /var/www/owncloud/;
    # set max upload size
    client_max_body_size 10G;
    fastcgi_buffers 64 4K;
  
    # Disable gzip to avoid the removal of the ETag header
    gzip off;
  
    # Uncomment if your server is build with the ngx_pagespeed module
    # This module is currently not supported.
    #pagespeed off;
  
    rewrite ^/caldav(.*)$ /remote.php/caldav$1 redirect;
    rewrite ^/carddav(.*)$ /remote.php/carddav$1 redirect;
    rewrite ^/webdav(.*)$ /remote.php/webdav$1 redirect;
  
    index index.php;
    error_page 403 /core/templates/403.php;
    error_page 404 /core/templates/404.php;
  
    location = /robots.txt {
      allow all;
      log_not_found off;
      access_log off;
      }
  
    location ~ ^/(?:\.htaccess|data|config|db_structure\.xml|README){
      deny all;
      }
  
    location / {
     # The following 2 rules are only needed with webfinger
     rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
     rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json last;
  
     rewrite ^/.well-known/carddav /remote.php/carddav/ redirect;
     rewrite ^/.well-known/caldav /remote.php/caldav/ redirect;
  
     rewrite ^(/core/doc/[^\/]+/)$ $1/index.html;
  
     try_files $uri $uri/ /index.php;
     }
  
     location ~ \.php(?:$|/) {
     fastcgi_split_path_info ^(.+\.php)(/.+)$;
     include fastcgi_params;
     fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
     fastcgi_param PATH_INFO $fastcgi_path_info;
     fastcgi_param HTTPS on;
     fastcgi_pass php-handler;
     }
  
     # Optional: set long EXPIRES header on static assets
     location ~* \.(?:jpg|jpeg|gif|bmp|ico|png|css|js|swf)$ {
         expires 30d;
         # Optional: Don't log access to assets
           access_log off;
     }
  
    }

• In the main server block add add_header Strict-Transport-Security "max-age=31536000; includeSubdomains"; to enable strict transport security

Performance tweaks¶

• enable system cron: by default owncloud runs scheduled jobs via ajax every page load which isn't great for actually getting things done at regular intervals. add:

  # crontab -u www-data -e
  */15  *  *  *  * php -f /var/www/owncloud/cron.php > /dev/null 2>&1

• enable apc (or apcu for php 5.5 and above) for wheezy apt-get install php-apc and add 'memcache.local' => '\OC\Memcache\APC', to config.php
• for php 5.5 and above apt- get install php-apcu and add 'memcache.local' => '\OC\Memcache\APCu',
• you may have to add apc.enable_cli=1 to /etc/php5/cli/php.ini

Security and Hardening¶

• enable mod_headers (a2enmod headers) and add Header always add Strict-Transport-Security "max-age=15768000" to virtual host file.
• move data directory outside /var/www/owncloud folder
• turn on server side encryption of data. (Admin settings --> turn on)
• redirect all traffic to ssl:

  <VirtualHost *:80>
     ServerName cloud.owncloud.com
     Redirect permanent / https://cloud.owncloud.com/
  </VirtualHost>

• verify that strict transport security and other headers are being sent by the server using curl. curl -I https://owncloud.site/owncloud/COPYING-AGPL or calling another static resource.
  • headers should include X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block X-Robots-Tag: none X-Frame-Options: SAMEORIGIN

For Office File servers¶

Owncloud does not autoscan files that are not controlled by owncloud regularly. For office file servers this could mean files added via different methods may not show up in owncloud.

• add the following cronjob to crontab -u www-data

  30      6,15     *       *       *  php /var/www/owncloud/occ file:scan --all >/dev/null 2>&1
  

resource links¶

• owncloud config.php parameters
• owncloud nginx configuration
• owncloud database configuration
• owncloud external auth
• owncloud external storage, direct config.php editing