See also OwnCloud - Client

Deployment Recommendations: https://doc.owncloud.com/server/10.0/admin_manual/installation/deployment_recommendations.html

Ubuntu Server Howto: https://www.marksei.com/install-owncloud-10-server-ubuntu/

OSS: http://owncloud.org

Enterprise: http://owncloud.com

• Synchronized cloud storage on your hardware
• Virtualmin Pro has install script

We use the apt package manager to install and maintain OwnCloud.

https://doc.owncloud.org/server/9.1/admin_manual/maintenance/package_upgrade.html

https://doc.owncloud.org/server/9.0/admin_manual/maintenance/update.html

as root:

apt-get -y update && apt-get -y dist-upgrade && apt-get -y autoremove && reboot

Upgrading OwnCloud will leave the installation in Maintenance Mode.

Then, after logging back in as root:

cd /var/www/owncloud/
sudo -u www-data php occ upgrade
sudo -u www-data php occ maintenance:mode --off

Smaller installations can just use SQLite database for simplicity.

Virtualmin → <domain> → Install Scripts → Available Scripts → OwnCloud

1. Browse to the OwnCloud URL
2. When prompted to create an admin user, enter your virtual server admin username and password

https://download.owncloud.org/download/repositories/stable/owncloud/

Install updates:

apt-get -y update && apt-get -y dist-upgrade && apt-get -y autoremove && reboot

Configure the package repository:

curl https://download.owncloud.org/download/repositories/10.0/Ubuntu_16.04/Release.key | apt-key add -

Install OwnCloud:

sh -c "echo 'deb https://download.owncloud.org/download/repositories/10.0/Ubuntu_16.04/ /' > \
  /etc/apt/sources.list.d/owncloud.list"
apt-get update
apt-get install owncloud-files apache2 libapache2-mod-php7.0 php7.0-gd php7.0-json php7.0-mysql \
  php7.0-curl php7.0-mbstring php7.0-intl php7.0-mcrypt php-imagick php7.0-xml php7.0-zip mysql-server \
  php-apcu redis-server php-redis php-zip php-dompdf php-xml php-mbstring php-gd php-curl unzip

Configure the database:

mysql -u root -p

CREATE USER 'ownclouduser'@'localhost' IDENTIFIED BY 'YOURPASSWORD';
CREATE DATABASE ownclouddb;
GRANT ALL ON ownclouddb.* TO 'ownclouduser'@'localhost';
FLUSH PRIVILEGES;
exit

See also Minimal CentOS Install

yum install mod_ssl openssl php-pdo php-gd php-mysql mariadb-server mariadb php5-mcrypt

Secure the fresh MySQL (MariaDB) installation and configure for auto-start (initial MySQL password is blank):

systemctl start mariadb && systemctl enable mariadb

mysql_secure_installation

Prepare the MySQL database:

mysql -u root -p

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

http://software.opensuse.org/download/package?project=isv:ownCloud:community&package=owncloud

Enable the repository and install OwnCloud:

cd /etc/yum.repos.d/
wget http://download.opensuse.org/repositories/isv:ownCloud:community/RedHat_RHEL-7/isv:ownCloud:community.repo
yum install owncloud

Enable the web server startup and reboot:

systemctl enable httpd
reboot

Reset permissions for better security:

find /var/www/owncloud -type d -exec chmod 775 {} \;
find /var/www/owncloud -type f -exec chmod 664 {} \;
chown -R root:root /var/www/owncloud
chown -R www-data.www-data /var/www/owncloud/config
chown -R www-data.www-data /var/www/owncloud/data
chown -R www-data.www-data /var/www/owncloud/apps
chown root.root /var/www/owncloud/.htaccess
chown root.root /var/www/owncloud/config/.htaccess
chown root.root /var/www/owncloud/data/.htaccess
chcon -R -t httpd_sys_rw_content_t /var/www/owncloud/config
chcon -R -t httpd_sys_rw_content_t /var/www/owncloud/data
chcon -R -t httpd_sys_rw_content_t /var/www/owncloud/apps

See also ConfigServer Security & Firewall (CSF)

ufw allow http
ufw allow https

Open ports in the firewall:

firewall-cmd --permanent --zone=public --add-service=http --add-service=https
# Use the next line if you change SSH to the non-standard port ''2222''
firewall-cmd --permanent --zone=public --zone=internal --zone=work --zone=external --zone=dmz --add-port=2222/tcp
firewall-cmd --reload

Here we mount an NFS share as the OwnCloud data store:

mount -t nfs ip.of.nfs.svr:/path/to/owncloud /mnt/

rsync -avr /var/www/html/owncloud/data/* /mnt/

umount /mnt/

Make it survive a reboot:

vim /etc/fstab

# Mount the NFS data store
ip.of.nfs.svr:/path/to/owncloud        /var/www/html/owncloud/data/  nfs  _netdev,context="system_u:object_r:httpd_sys_rw_content_t:s0"  0 0

mount -a
mount

Verify and/or reset the permissions on the data folder as above.

1. Log into OwnCloud as the administrator using HTTPS
2. Click adminusername → Admin
3. Scroll down to Security → Enforce HTTPS