Server

The apache benchmark tool is very basic, and while it will give you a solid idea of some performance.

Some parameters:

Requirements:

1. A web server (Apache or another web server)
2. Database (Mysql, MariaDB or SQLite)

Run cron by drush

drush cron

Add cron hook to a custom module.

/**
 * Implement hook_cron()
 */
function MYMODULE_cron() {
  // Your codes.
}

Memcache is caching server allow you to incrise and have great performence on your site. Drupal and memcached work very well and here the full tutorial you need to install and setup memcache server and your drupal instance.

Method 1:

Static cache Control by .htacces

If not already done, you must enable apache headers (mod_headers.c) module

Check module is enabled or not:
ls /etc/apache2/mods-enabled/

An email is classified as spam or not spam on the receiving end, not the sending end. But you can improve

Method 1. Call Url

You can use this method to call a Custom php script, Custom module, Databaselog .... for example.

1. Create a script (here, notify_login_url.sh)

Install Solr 5.4.1 on Debian Linux

Step 1. Install JAVA 7 (In not already installed)

sudo apt-get install openjdk-7-jdk

Example : on Debian / Ubuntu / Mint ...

File :  /etc/network/interfaces

Edit interface file
vim  /etc/network/interfaces

Add / Edit like this (Here FO ip address is 123.147.159.132)