yum -y install centos-release-scl
wget http://download.owncloud.org/download/repositories/stable/CentOS_7/ce:stable.repo -O /etc/yum.repos.d/ce:stable.repo

yum install nfs-utils mariadb-server bzip2 policycoreutils-python
yum install httpd -t
yum install php55 php55-php-gd php55-php-mbstring php55-php-xml php55-php-mysqlnd php55-php php55-php-ldap

cp /opt/rh/httpd24/root/etc/httpd/conf.d/php55-php.conf /etc/httpd/conf.d
cp /opt/rh/httpd24/root/etc/httpd/conf.modules.d/10-php55-php.conf /etc/httpd/conf.modules.d/
cp /opt/rh/httpd24/root/etc/httpd/modules/libphp55-php5.so /etc/httpd/modules/
ln -s /opt/rh/php55/root/etc/php.ini /etc/php.ini

systemctl enable httpd.service
systemctl start httpd.service
systemctl enable mariadb.service
systemctl start mariadb.service

yum install owncloud-files

mysql_secure_installation
mysql -u root -p

Create database called clouddb

create database clouddb;

Allow clouddbuser to access the clouddb database on localhost with predefined password.

grant all on clouddb.* to 'clouddbuser'@'localhost' identified by 'password';
flush privileges;

setsebool -P httpd_unified 1
setsebool -P httpd_can_sendmail 1
setsebool -P httpd_can_connect_ldap 1
setsebool -P httpd_use_nfs 1

I am using NFS mount for data mounted on /mnt/data

/etc/fstab

.
.
[2a02:22a0:bbb7:403::3]:/mnt/hdd/owncloud /mnt/data nfs _netdev,rw,vers=3,auto 0 0

mkdir /mnt/data
mount -a
chown apache. /mnt/data

Click on lower left + (Apps) as admin user. Enable LDAP user and group backend

click on user admin (top right) and choose Admin.

On server tab:

localhost port 389
cn=Manager,dc=mail,dc=helux,dc=nl
PASSWORD
dc=mail,dc=helux,dc=nl

On User filter tab:

only those object classes: mailUser

On Login filter tab:

Other Attributes: mail

On Group filter tab:

Edit raw filter instead: (&(|(objectclass=mailDomain)(objectclass=mailUser)))

On Advanced tab:

Directory settings:
User Display Name Field: cn
Base User Tree: o=domains,dc=mail,dc=helux,dc=nl
Group Display Name Field: cn
Base Group Tree: o=domains,dc=mail,dc=helux,dc=nl
Group-Member association: uniqueMember

Special Attributes:
Quota Field:
Quota Default:
Email Field: mail

Disable TLS LDAP. Owncloud does not work with it very well.

mysql -u root -p
use clouddb;
update oc_appconfig set configvalue=0 where configkey="ldap_tls";

/var/www/html/owncloud/config/config.php

.
.
'trusted_domains' => 
array (
  0 => 'cloud.local.rtd.helux.nl',
  1 => 'cloud.helux.nl',
),
'datadirectory' => '/data/owncloud',
'overwrite.cli.url' => 'http://cloud.local.rtd.helux.nl/owncloud',
'overwritehost' => 'cloud.helux.nl',
'overwriteprotocol' => 'https',
'overwritewebroot' => '/',
.
.

sed -i '/post_max_size/c\post_max_size = 2G' /etc/php.ini
sed -i '/cgi.fix_pathinfo/c\cgi.fix_pathinfo = 0' /etc/php.ini
sed -i '/upload_max_filesize/c\upload_max_filesize = 2G' /etc/php.ini
sed -i '/date.timezone/c\date.timezone = "UTC"' /etc/php.ini

/var/www/html/owncloud/.htaccess

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.
php_value upload_max_filesize 2G
php_value post_max_size 2G
php_value memory_limit 2G
.
.