No space left on device in server | PHPMysql not connect session | Full Inodes 100% | Check CPU Process and MEMORY

Issues

1. open(/var/lib/php/sessions/sess_, O_RDWR) failed: No space left on device (28)
2. PHPMysql not connect
3. Database not connect

Solusions

Check CPU and MEMORY usage of server from terminal

ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%cpu | head

df -h

Check file size

find /home/ -size +100M 

 

 Check INODES in server (Inode mean total files into server)

df -i

Search INODES from system and perticular folder (Get number of file in perticular directory)

for i in /var/www/html/*; do echo $i; find $i |wc -l; done

Check INODES into specific directory

ls -l /var/lib/php/sessions | wc -l

Remove all files from specific directory

rm -r /var/lib/php/sessions/ 

If you are using PHP so you can create code in any existing file

$path = '/var/lib/php/sessions/';
$dir = opendir($path);
$i = 0;
while ($dir && ($file = readdir($dir)) !== false) {
    unlink($path.$file);
    echo $i.' - '.$path.$file.'<br>';
    if($i == 50000){
        exit;
    }
    $i++;
}

How to force redirect HTTP to HTTPS in AWS or any other server using .htaccess

1st Method

<IfModule mod_rewrite.c>
RewriteEngine On

RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteRule .* https://%{HTTP:Host}%{REQUEST_URI} [L,R=permanent]

RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

2nd Method

<IfModule mod_rewrite.c>
     RewriteEngine On
     RewriteCond %{HTTPS} !on
     RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>

Create Zip file of all php files from your server using PHP file

Create Zip file of all php files from your server using PHP file. If you have not cpanel of the server so you can use this php file and compress files as zip file.

Just you need put this file into root directory of the server (ex.public_html/createzip.php)

And run this file from browser eg. http://domain.com/createzip.php

Create one file name : createzip.php and put following code into the file. and run file from browser.

<?php
// Get real path for our folder
$realpath = getcwd();
$rootPath = realpath($realpath);
// Initialize archive object
$zip = new ZipArchive();
$filename = 'bk_'.date('YmdHis').'.zip';
$zip->open($filename, ZipArchive::CREATE | ZipArchive::OVERWRITE);
// Create recursive directory iterator
/** @var SplFileInfo[] $files */
$files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($rootPath),
    RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($files as $name => $file)
{
    // Skip directories (they would be added automatically)
    if (!$file->isDir())
    {
        // Get real and relative path for current file
        $filePath = $file->getRealPath();
        $relativePath = substr($filePath, strlen($rootPath) + 1);
        // Add current file to archive
        $zip->addFile($filePath, $relativePath);
    }
}
// Zip archive will be created only after closing object
$zip->close();

In PHP, Not send email in AWS amazon ubuntu linux server

sudo apt-get install sendmail

How to import Big SQL file usign PHP with shell command into hosting server

<?php

error_reporting(E_ALL ^ E_NOTICE);
ini_set('display_errors', 1);
ini_set('memory_limit', '512M');

$dbinfo = array(
    "host" => 'localhost',
    "user" => 'magentom_jaydip',
    "pass" => 'rmO22RQ%UbW0',
    "dbname" => 'magentom_jaydip'
);


// Database Config
$sqlhost = $dbinfo["host"];
$dbuser = $dbinfo["user"];
$dbpassword = $dbinfo["pass"];
$dbname = $dbinfo["dbname"];

// filename
$file = "mg_jaydip.sql";

shell_exec("mysql -u $dbuser --password='$dbpassword' --host='$sqlhost' $dbname < $file");

echo 'Finished!<br/>';
?>

How to Check URL is Secure or Not in amazon EC2 Server in PHP / Codeigniter SSL

You can use following code for  Check URL is Secure or Not in amazon EC2 Server

if ($_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
      $_SERVER['HTTPS'] = 'on';
} else {
      $_SERVER['HTTPS'] = 'off';
}

Enable gzip compression

What is gzip Compression?

When a user visit your website a request is made to web server to deliver the requested data. The response of the server is directly proportional to the size in mb/kb of the page as generally all pages contains video, images and textual part. so as page size bigger response time will be higher
Gzip facilitate to compress the your webpages  video, image and textual and style sheets before serving the request them over to the browser. This really reduces response time since the files are now in less size due to compression.
Gzip is the technique right now most effecting in the all speed optimization concept

How Apply Gzip to Apache Server Website

First of all you need to have a “.htaccess” file, If not create it and edit with the following code.

<IfModule mod_deflate.c>
  # Compress HTML, CSS, JavaScript, Text, XML and fonts
  AddOutputFilterByType DEFLATE application/javascript
  AddOutputFilterByType DEFLATE application/rss+xml
  AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
  AddOutputFilterByType DEFLATE application/x-font
  AddOutputFilterByType DEFLATE application/x-font-opentype
  AddOutputFilterByType DEFLATE application/x-font-otf
  AddOutputFilterByType DEFLATE application/x-font-truetype
  AddOutputFilterByType DEFLATE application/x-font-ttf
  AddOutputFilterByType DEFLATE application/x-javascript
  AddOutputFilterByType DEFLATE application/xhtml+xml
  AddOutputFilterByType DEFLATE application/xml
  AddOutputFilterByType DEFLATE font/opentype
  AddOutputFilterByType DEFLATE font/otf
  AddOutputFilterByType DEFLATE font/ttf
  AddOutputFilterByType DEFLATE image/svg+xml
  AddOutputFilterByType DEFLATE image/x-icon
  AddOutputFilterByType DEFLATE text/css
  AddOutputFilterByType DEFLATE text/html
  AddOutputFilterByType DEFLATE text/javascript
  AddOutputFilterByType DEFLATE text/plain
  AddOutputFilterByType DEFLATE text/xml

  # Remove browser bugs (only needed for really old browsers)
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4\.0[678] no-gzip
  BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
  Header append Vary User-Agent
</IfModule>


After Applying the code to the htaccess test the website url with a http://checkgzipcompression.com/.