CentOS 6

Before You Begin

Ensure that System Requirements have been met prior to proceeding with the CentOS Configuration Guide.

Install Requirements

1) Upgrade your current packages

Upgrade your current packages.

yum update

2) Install Required Packages

PHP

All installations of ProVision require at least PHP 5.5 (and related extensions). CentOS 6 comes with PHP 5.3 by default. You can either add a repository which provides PHP 5.5 or install PHP manually.

The Webtatic and Remi repos both have versions of PHP which are newer than those in the official repos. For this example, we'll be using Webtatic

Add the repository:

rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

Update:

yum update

Install:

PHP5 / Apache2 / extensions

httpd
php55w
php55w-opcache
php55w-mysqlnd
php55w-pdo
php55w-ldap
php55w-pecl-memcache
php55w-bcmath
php55w-devel
php55w-pear
php55w-cli

Development tools for pecl / additional system packages:

curl
openssl
memcached
mod_ssl

yum install httpd php55w php55w-opcache php55w-mysqlnd php55w-pdo php55w-ldap php55w-pecl-memcache php55w-bcmath php55w-devel php55w-pear php55w-cli curl openssl memcached mod_ssl

MySQL

Install MySQL to use a local database.

MySQL is included with most CentOS installs, check for it with:

yum list installed | grep mysql

The default MySqL version included with most CentOS installs will need to be upgraded to the latest version:

rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

If you have an existing installation, you can replace it with:

yum install mysql.`uname -i` yum-plugin-replace
yum replace mysql --replace-with mysql55w

For a fresh install:

   yum install mysql55w mysql55w-server

Then, re-start and configure.

   service mysqld start      chkconfig mysqld on

If a new install, set the MySQL root password:

    /usr/bin/mysqladmin -u root password 'new-password'

For an existing install / upgrade, you will need to upgrade the existing tables after the restart.

mysql_upgrade -u root -p

This will issue a password prompt for the user. If you don't have a root user password, remove the "-p".

DNS and Additional Utilities

5. Install the DNS and other remaining utilities:

curl
openssl
nmap
bind-utils
bind
expect

    yum install curl openssl nmap bind-utils bind expect

DNSSEC-Tools

Install and Compile DNSSEC-Tools

    yum groupinstall 'Development Tools'
    yum install openssl-devel perl-devel perl-CPAN
    cd /usr/src
    wget https://www.dnssec-tools.org/download/dnssec-tools-2.1.tar.gz
    tar -xzf dnssec-tools-2.1.tar.gz
    ./configure
    make
    make install

3) Configuring the requirements:

SSL

Self signed certificates in CentOS 6 by default have been already installed.

If you want to change it, follow the steps below:

Note: For production install, it is HIGHLY RECOMMENDED to use organization signed certs

Generate private key, CSR, and temporary key if one hasn't been provided.

openssl genrsa -out ca.key 1024    openssl req -new -key ca.key -out ca.csr    
openssl x509 -req -days 365 -in ca.csr -signkey ca.key -out ca.crt

Copy the files to the correct locations

   cp ca.crt /etc/pki/tls/certs    cp ca.key /etc/pki/tls/private/ca.key    cp ca.csr /etc/pki/tls/private/ca.csr

Make sure that you copy the files and do not move them if SELinux is enabled (which it is by default)

Edit the apache ssl config and put in the appropriate options:

(shown using the vi editor, though you may use the editor of your choice)

vi /etc/httpd/conf.d/ssl.conf

Find the lines that start with SSHCertificateFile and change them to be like:

SSLCertificateFile /etc/pki/tls/certs/ca.crt 
SSLCertificateKeyFile /etc/pki/tls/private/ca.key

Then restart

/etc/init.d/httpd restart

Add 443 virtual hosts as needed in httpd.conf.

Apache

Allow overwrites in the apache vhosts

sed -i 's/AllowOverride None/AllowOverride All/g' /etc/httpd/conf/httpd.conf

Start Apache and make it to start on boot

    chkconfig httpd on     service httpd start

Please note that mod_rewrite is required! If it is not enabled in Apache, key elements will not work as expected.

MySQL

Set the MySQL Configuration:

mysql -p -e "SET GLOBAL sql_mode='NO_ENGINE_SUBSTITUTION';SET SESSION sql_mode='NO_ENGINE_SUBSTITUTION';"

then enter the MySQL root password when prompted.

4) Optional configurations:

Configure SELinux

Please remember - if you change the IP address of the your server, then you will need to update SELinux functions accordingly

Most CentOS install have SELinux enabled by default. One of its protections is to not allow httpd daemon to make network connections, we need to disable this for license checks.

To view the SELinux configuration for http:

/usr/sbin/getsebool -a | grep httpd

To turn protection off for the httpd daemon for creating network connections:

   /usr/sbin/setsebool -P httpd_can_network_connect 1

Configure IPTables

IPTables is enabled by default on CentOS. Add a new rule to allow 443 from anywhere. Make sure that this rule is in the chain BEFORE any blanket reject rule:

To list all current IPTable rules:

/etc/rc.d/init.d/iptables status

To add a rule for 443:

/sbin/iptables  RH-Firewall-1-INPUT -I 5 -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT

The -I 5 is what adds the rule to the 5th chain position. You might need to change this depending on existing rules. Look at what rules are there before running.

To save the new config:

/etc/rc.d/init.d/iptables save

OR (some versions of centOS have different iptables names, so the above won't work)

vi /etc/sysconfig/iptables

With the file open for editing, add:

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT

Once complete - restart the iptables service:

/etc/init.d/iptables restart

Customers can alter this post install to allow only their IP space, plus the 6connect management space.

Radius (Optional)

This section only needs to be followed if the customer will be using Radius for authentication.

Install radius module:

    pecl install radius     echo extension=radius.so > /etc/php.d/radius.ini

SSH

Install ssh module:

    yum install libssh2-devel     pecl install -f ssh2     echo extension=ssh2.so > /etc/php.d/ssh2.ini

Source Guardian

Source Guardian is only required for ProVision versions 5.1.2 and earlier. If installing ProVision 5.1.3 or later, skip this step.

Install the Source Guardian php extension.

Download and find additional details from http://www.sourceguardian.com/ixeds/. Choose either Linux 32 or Linux 64 .tar.gz depending on architecture.

Download the loader and put it in the appropriate place.

Place the file in your php extension directory as specified in your php.ini

Note: The PHP cli binary path must be set in the ProVision software Admin section if is different from default. By default it is /usr/bin/php.
Add extension=ixed.x.x.y.y to your php.ini

    wget https://www.sourceguardian.com/loaders/download/loaders.linux-x86_64.tar.bz2
    tar -xjf loaders.linux-x86_64.tar.bz2
    cp -rpPf ixed.5.5.lin /usr/lib64/php/modules/
    echo extension=ixed.5.5.lin > /etc/php.d/ixed.5.5.ini

Reload the web server

service httpd reload

If you have any issues with getting Source Guardian installed, and the instructions are not working in your case, please check out http://www.sourceguardian.com/loaders/download.php - this page allows you paste in the output of your phpinfo page and then it will tell you the steps that need to be taken for your particular use case. If you are still having issues, please contact 6connect at support@6connect.com so one of our engineers can assist you.

4) Install 6connect ProVision Software:

1. Remove the current contents in the ProVision web folder (currently the www root) and after extract the archive contents:

 tar -xf productionBuild-5.1.2-php5.5.tar -C /var/www/html

2. Change the permissions to be the web user permissions

chown -R apache.apache /var/www/html

3. Go to http://﹤web root﹥/configTest.php. If there are any configuration errors listed in red, other than in the Database and Configuration Files section, they must be corrected.

4. Run configDir.sh ﹤web user﹥ from the command line as root in the web root. This will setup the directories apache user needs read/write access to.

cd /var/www/html /var/www/html/configDir.sh apache

5. Create the default database and initial user in MySQL

6. Go to http://﹤web root﹥/configBootstrap.php. Fill in the requested information, noting any login credentials.

7. Create a secure directory and run configSecureKeys.sh ﹤web user﹥ ﹤path to secure directory﹥ from the command line as root. This sets up the secure directory where your key file for password management will be stored. The secure directory should be a location outside of the web root that is only accessible by appropriate users.

mkdir /secure ./configSecureKeys.sh apache /secure

8. Log in using the credentials that were generated in Step 6 and change your password!