Centos 7: installing deltarpm (Delta RPMs disabled)

Symptoms:

Delta RPMs disabled because /usr/bin/applydeltarpm not installed.

Centos 7 with minimal installation does not include deltarpm. To fix error message "Delta RPMs disabled because /usr/bin/applydeltarpm not installed." during yum update, install it manually.

# yum install -y deltarpm

Windows 10: repair "Failed to connect to Windows service. "

PC Base:

• OS Name Microsoft Windows 10 Pro
• Version 10.0.10586 Build 10586
• System Type x64-based PC
• Processor AMD A4-4020 APU with Radeon(tm) HD Graphics, 3200 Mhz, 1 Core(s), 2 Logical Processor(s)
• System Model A55F2-M4
• BIOS Version/Date American Megatrends Inc. 4.6.5, 2013-06-03
• Installed Physical Memory (RAM) 2.00 GB
• Total Virtual Memory 5.44 GB

This error, "Failed to connect to Windows service. ", happened frequently in my PC. These suggestions take longer time to accomplish:

1. chkdsk c: /f
2. sfc /scannow 

All you have to do is:

1. run cmd as "Run as administrator"
2. type >netsh winsock reset
3. restart/reboot your PC

This is for fast solution to fix connection to Windows service, not intended to fix real problem in your Windows. After restart/reboot your PC, you may take another action in Troubleshooting -> View all:

• Background Intelligent Transfer Service
• Windows Update

This problem may reoccurred in your PC.

How to integrated web template into codeigniter 3.0.6 (with upgrade to 3.1.2)

Prerequistes:

• download codeigniter 3.1.2 (my version 3.0.6) from https://www.codeigniter.com/download
  
• download web template for example Frequent Flyer a Travel Category Flat Bootstrap Responsive Web Template from https://w3layouts.com/frequent-flyer-travel-category-flat-bootstrap-responsive-web-template/
  

After you extract codeigniter 3.1.2 you may have these structure directory:
[root codeigniter]
application
system
userguide
To upgrade codeigniter 3.0.6 to 3.1.2, extract codeigniter 3.1.2 and copy/replace system folder into [root codeigniter] folder.
Extract your template into codeigniter folder [root codeigniter].
[root codeigniter]
application
system
userguide
fft--css
--fonts
--images
--js
--video
--index.html
--w3layouts-License.txt
Create file test.php file in folder controller.
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Test extends CI_Controller {
  public function __construct() {
    parent::__construct();
  }
  public function view($page = 'Test')
  {
    $this->load->helper('html');
    $this->load->helper('url');
    if ( ! file_exists(APPPATH.'views/fft/'.$page.'.php'))
    {
      show_404();
    }
    $data['title'] = $page; // Capitalize the first letter
    $this->load->view('fft/templates/pageheader',$data);
    $this->load->view('fft/'.$page, $data);
    $this->load->view('fft/templates/pagefooter');
  }
}
?>
At folder views, create folder fft.
application
--------bodymenu.php
--------pageheader.php
------test.php
We split file views->test.php. The other supporting files we put them into folder  [root codeigniter]->application->templates.
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
?>
<!-- banner -->
  <div data-vide-bg="<?php echo base_url(); ?>fft/video/sea">
    <div class="center-container">
      <div class="container">
        <!-- load body header -->
        <?php $this->load->view('fft/templates/bodyheader'); ?>
        <div class="logo animated wow zoomIn" data-wow-delay="900ms">
          <h1><a href="/web/joomla/index.html">Frequent <span>flyer</span><i>take me anywhere</i></a></h1>
        </div>
        <div class="start animated wow bounce" data-wow-delay="700ms">
          <a href="#about" class="hvr-bounce-to-bottom scroll">Get Started</a>
        </div>
      </div>
    </div>
  </div>
Final directory will like this:
[root codeigniter]
------views
------templates
--------bodyheader.php
--------pagefooter.php
------about.php
------test.php
--system
--userguide
--fft
----css
----fonts
----images
----js
----video
----index.html
----w3layouts-License.txt

References:

• https://www.codeigniter.com/download 
• https://w3layouts.com/frequent-flyer-travel-category-flat-bootstrap-responsive-web-template/
• http://www.codeigniter.com/user_guide/installation/upgrade_310.html

Install Composer in XAMPP 1.8.1 and Windows 10 (x64)

Prerequisites:

• Windows 10 
• XAMPP work

Make sure openssl extension is enable in php.ini:
extension=php_openssl.dll

Follow this step to install composer

1. Open cmd Windows
2. Donwload installer by running this command

   php -r "readfile('https://getcomposer.org/installer');" > composer-setup.php

   for example*

   D:\xampp\php>php -r "readfile('https://getcomposer.org/installer');" > composer-setup.php

3. Validate your composer-setup.php by running 

   php -r "if (hash_file('SHA384', 'composer-setup.php') === 'a52be7b8724e47499b039d53415953cc3d5b459b9d9c0308301f867921c19efc623b81dfef8fc2be194a5cf56945d223') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"

   for example*:

   D:\xampp\php>php -r "if (hash_file('SHA384', 'composer-setup.php') === 'a52be7b8724e47499b039d53415953cc3d5b459b9d9c0308301f867921c19efc623b81dfef8fc2be194a5cf56945d223') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
   Installer verified

4. Install your composer by running

   php composer-setup.php

   for example*:

   D:\xampp\php>php composer-setup.php
   Some settings on your machine may cause stability issues with Composer.
   If you encounter issues, try to change the following:
   The OpenSSL library (0.9.8x) used by PHP does not support TLSv1.2 or TLSv1.1.
   If possible you should upgrade OpenSSL to version 1.0.1 or above.
   Downloading 1.0.3...
   Composer successfully installed to: D:\xampp\php\composer.phar
   Use it: php composer.phar

5. Remove composer-setup.php** by running:

   php -r "unlink('composer-setup.php');"

   for example*:

   D:\xampp\php>php -r "unlink('composer-setup.php');"

Note:
* in my case I use stand alone xampp in directory d:
** you do not have to save any composer-setup.php, it may change for a new version

 

References:

• http://i.justrealized.com/2013/install-composer-windows/
• https://getcomposer.org/download/

WHM/CPanel Centos 7: enabling ipset in csf

Prerequisite:

• Iptables & Ipset
• Serverconfig v7.54 or later

Follow WHM/CPanel centos 7: blocking brute force attack to replace firewalld with iptables and ipset.

Download and Install serverconfig:

# wget http://configserver.com/free/csf.tgz# tar -xzf csf.tgz# cd csf & ./install.cpanel.sh

To enable ipset in csf, edit file /etc/csf/csf.conf or edit it via WHM/CPanel:

TESTING = “0”
LF_IPSET = 1
TCP_IN= “22,80,53,443” 
TCP_OUT=”22,80,53,443″
UDP_IN=”53″
UDP_OUT=”53″

NOTE: don't forget to add your port services

Restart your csf

# service csf restart

Or via WHM/CPanel click Restart CSF+LFD

References:

• https://documentation.cpanel.net/plugins/servlet/mobile#content/view/7536715 
• http://blog.configserver.com/?p=2329 
• http://codeisgreen.net/blog/2015/09/21/ipset-for-cpanelwhm-and-csf/?id=8&title=ipset-for-cpanel-whm-and-csf