Server

Create a 301 redirect for all http requests that are going to the old domain to new domain

If you are wanting to only redirect a specific subdomain, you would do something like this:

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{HTTP_HOST} ^olddomainname.com$ [OR]
  RewriteCond %{HTTP_HOST} ^www.olddomainname.com$
  RewriteRule (.*)$ http://www.newdomainname.com/$1 [R=301,L]
</IfModule>

[or]
  
Redirect  301 /olddomainname http://www.newdomainname.com

Install "php-soap":
sudo yum install php70w-soap

Terminal:
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.digistar.vn
* epel: epel.mirror.srv.co.ge
* extras: centos-hn.viettelidc.com.vn
* nux-dextop: mirror.li.nux.ro
* updates: mirror.digistar.vn
* webtatic: sp.repo.webtatic.com

sudo apt-get update
sudo apt-get upgrade (optional)

MySQL
=====
sudo apt-get install mysql-server mysql-client

Apache
=====
sudo apt-get install apache2

PHP
===
sudo apt-get install php5 libapache2-mod-php5 php5-mysql

Restart Apache
===========
/etc/init.d/apache2 restart

PHPMyAdmin
==========
sudo apt-get install phpmyadmin

I don’t like to use Apache’s default http folder /var/www so I need to update the apache2.conf file:
sudo gedit /etc/apache2/apache2.conf

Open terminal: Ctrl+Alt+T

1)  sudo a2enmod rewrite
2) sudo apache2ctl -M   (and seeing if rewrite_module is on the list.)
3) sudo gedit /etc/apache2/sites-available/default
4) change text "AllowOverride None" to "AllowOverride All"
5) sudo /etc/init.d/apache2 reload

If you are running Ubuntu 14.04+:
sudo gedit /etc/apache2/apache2.conf
Otherwise:
sudo gedit /etc/apache2/sites-available/default

Refer: https://www.drupal.org/node/134439

Open a web.config file in root folder & add this line  <httpErrors errorMode="Detailed" />

Ex:
 <system.webServer>
 ..................................... 
// comment below lines
 <!--<httpErrors>-->
      <!--<remove statusCode="404" subStatusCode="-1" />-->
      <!--<error statusCode="404" prefixLanguageFilePath="" path="/index.php" responseMode="ExecuteURL" />-->
 <!--</httpErrors>-->
........................................

 // Add this line 
 <httpErrors errorMode="Detailed" />
</system.webServer>

Cron Job Manager Command:

wget -O - -q -t 1 "http://<your-domain>.com/cron.php?cron_key=<your-key>"

Drupal 7 Run Elysia cron on every Minute using crontab

* * * * * wget -O - -q -t 1 http://your-site-name/sites/all/modules/contrib/elysia_cron/cron.php?cron_key=

[Minute] [hour] [Day_of_the_Month] [Month_of_the_Year] [Day_of_the_Week] [command]

Edit/List Jobs in Crontab
# crontab -e
# crontab -l
# crontab -u -l
# crontab -u (username) -l

Refer: How to Install Crontab in CentOS/RHEL 7/6/5
http://tecadmin.net/install-crontab-in-linux
http://tecadmin.net/crontab-in-linux-with-20-examples-of-cron-schedule/