Category Archives: Linux (Ubuntu)

The Perfect Server – Ubuntu 16.10 (Yakkety Yak) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.1

Zabihah Halal Vitamins
The Perfect Server – Ubuntu 16.10 (Yakkety Yak) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.1
This tutorial shows how to install an Ubuntu 16.10 (Yakkety Yak) server (with Apache2, BIND, Dovecot) for the installation of ISPConfig 3.1, and how to install ISPConfig. ISPConfig 3 is a web hosting control panel that allows you to configure the following services through a web browser: Apache or nginx web server, Postfix mail server, Courier or Dovecot IMAP/POP3 server, MySQL, BIND or MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more. This setup covers the installation of Apache (instead of nginx), BIND (instead of MyDNS), and Dovecot (instead of Courier).

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How to install WordPress with Nginx, MariaDB and HHVM on Ubuntu 16.04 LTS

Zabihah Halal Vitamins
How to install WordPress with Nginx, MariaDB and HHVM on Ubuntu 16.04 LTS
This tutorial describes the steps to install WordPress with Nginx, MariaDB and HHVM on Ubuntu 16.04 Server. HHVM (Hip Hop Virtual Machine) is a just-in-time compiler developed by Facebook to run applications that are written in PHP and Hack language. HHVM is faster than the traditional PHP engine from ZEND and is used by Facebook to serve billions of web requests per day.

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Dyn a cloud-based DNS service under DDoS attack and took down major sites such as Twitter/Reddit/Spotify/Paypal and others

Dyn a cloud-based DNS service under DDoS attack and took down major sites such as Twitter/Reddit/Spotify/Paypal and others
DDoS on Dyn.COM

A massive DDoS (distributed denial-of-service) attack against a popular cloud-based DNS provider Dyn.COM took down major websites. The DYN.COM confirmed it on twitter:

We are aware of the ongoing service interruption of our Managed DNS network. For more information visit our status page.

— Dyn (@Dyn) October 21, 2016

Following sites are having issues due to DNS problems:

  1. Twitter
  2. SoundCloud
  3. Spotify
  4. Netflix
  5. Reddit
  6. Disqus
  7. PayPal
  8. Basecamp
  9. Business Insider
  10. CNN
  11. Esty
  12. Github
  13. Guardian.co.uk
  14. Imgur
  15. HBO Now
  16. Pinterest
  17. Recode
  18. The Verge
  19. Wired and more

You can verify NS with the following standard Unix command:
$ host -t ns twitter.com

twitter.com name server ns2.p34.dynect.net.
twitter.com name server ns1.p34.dynect.net.
twitter.com name server ns4.p34.dynect.net.
twitter.com name server ns3.p34.dynect.net.

From the official announcement:

This attack is mainly impacting US East and is impacting Managed DNS customers in this region. Our Engineers are continuing to work on mitigating this issue. Services have been restored to normal as of 13:20 UTC on 21/Oct/2016. But, I’m still seeing problems.

This DDoS attack may also be impacting Dyn Managed DNS advanced services with possible delays in monitoring. Our Engineers are continuing to work on mitigating this issue. — Oct 21, 2016 – 16:48 UTC

See the “DDoS Attack Against Dyn Managed DNS” update page for up to date information.

(Image credit)

Halal Vitamins

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How To Patch and Protect Linux Kernel Zero Day Local Privilege Escalation Vulnerability CVE-2016-5195 [ 21/Oct/2016 ]

How To Patch and Protect Linux Kernel Zero Day Local Privilege Escalation Vulnerability CVE-2016-5195 [ 21/Oct/2016 ]

A very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed for nine years since 2007. This bug affects all sort of of Android or Linux kernel to escalate privileges. Any user can become root in less than 5 seconds. The bug has existed since Linux kernel version 2.6.22+. How do I fix this problem?
Halal Vitamins

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Useful Vim editor plugins for software developers – part 3: a.vim

Zabihah Halal Vitamins
Useful Vim editor plugins for software developers – part 3: a.vim
Now, in this third and the final part, we will discuss another very useful plugin dubbed a.vim. Up until now, in this series of articles covering programming-related plugins for Vim, we discussed basics of Vim plugin installation using Pathogen plugin manager, and covered a total of three plugins – namely Tagbar, delimitMate, and Syntastic. Now, in this third and the final part, we will discuss another very useful plugin dubbed a.vim.

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How to Install Ruby on Rails (RoR) with PostgreSQL on Ubuntu 16.04

Zabihah Halal Vitamins
How to Install Ruby on Rails (RoR) with PostgreSQL on Ubuntu 16.04
In this tutorial, I will show you how to install Ruby on Rails on ubuntu 16.04 LTS. I will show you how to install and configure Rails with a PostgreSQL database, and how to create a new first project with Rails. Ruby on Rails (RoR) is an open source web application framework, published under MIT License. Ruby on Rails, or rails is written in Ruby, it is a server-side web application framework that follows the MVC (Model-View-Controller) concept.

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How to install a Ubuntu 16.10 (Yakkety Yak) Minimal Server

Zabihah Halal Vitamins
How to install a Ubuntu 16.10 (Yakkety Yak) Minimal Server
This tutorial shows the installation of a Ubuntu 16.10 minimal server in detail with many screenshots. The purpose of the guide is to show the basic installation of Ubuntu 16.10 that can be used as basis for our other Ubuntu tutorials here at howtoforge like our perfect server guides.

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Useful Vim editor plugins for software developers – part 2: Syntastic

Zabihah Halal Vitamins
Useful Vim editor plugins for software developers – part 2: Syntastic
There’s no doubt that Vim is a capable programming editor out-of-the-box, but it’s the editor’s plugins that help you make the most out of it. In the first part of this article series, we discussed a couple of programing-related Vim plugins (Tagbar and delimitMate). Continuing on the same path, in this article, we will discuss another useful Vim plugin aimed at software developers – Syntastic.

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Useful Vim editor plugins for software developers – part 1

Zabihah Halal Vitamins
Useful Vim editor plugins for software developers – part 1
An improved version of Vi, Vim is unarguably one of the most popular command line-based text editors in Linux. Besides being a feature-rich text editor, Vim is also used as an IDE (Integrated Development Environment) by software developers around the world. What makes Vim really powerful is the fact that it’s functionality can be extended through plugins. And needless to say, there exist several Vim plugins that are aimed at enhancing users’ programming experience.

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