How to Use a Private Key and PuTTY to Log into Your Server Securely

Improve Login Security Using Private Keys and PuTTY

With security becoming increasingly important in today’s modern world of information theft and privacy concerns, keeping your server safe and secure has almost become a necessity. While several methods exist to properly secure your server, from using a long password to two-factor authentication, they can be quite a hassle to set up and use on a day-to-day basis. However, private keys offer a good balance between convenience and security.

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How to configure remote and secure connections for MySQL on Ubuntu 16.04

In this article, we will show you how to configure remote and secure connections for MySQL on Ubuntu 16.04 VPS.  If you are using an unencrypted connection to connect to your remote MariaDB/MySQL server, then everyone with access to the network could monitor and analyze the data being sent or received between the client and the server. This guide should work on other Linux VPS systems as well but was tested and written for an Ubuntu 16.04 VPS.

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Secure SSH using two-factor authentication on Ubuntu 16.04

Secure SSH using two-factor authentication on Ubuntu 16.04

In this tutorial, we will describe the necessary steps to configure two-factor authentication (2FA) using Google authenticator on an Ubuntu 16.04 VPS. This application includes implementations of one-time passcode generators for several mobile platforms. This method adds another layer of protection to your server adding an extra step to the basic login procedure.

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How to secure LEMP stack

How to secure LEMP stack

We’ll show you, how to secure LEMP stack. LEMP, it stands for Linux, (EngineX) NGINX, MariaDB (or MySQL) and PHP. Due to its flexibility and simplicity, NGINX slowly takes over the Internet. In this tutorial, we will attempt, through examples of bad and good practices, to go through the steps of properly securing your Linux web server. So what is the term Security? Often you can hear the IT Engineers saying “Our network is secure” or “Our servers are secure” however, those sentences although widely used are technically not correct, as in many books and publications you can find that Security as a term is not a static value, but rather a degree. From Wikipedia the definition is:
“Security is the degree of resistance to, or protection from harm. It applies to any vulnerable and/or valuable asset, such as a person, dwelling, community, item, nation, or organization.”
In terms of servers or applications, one should always be aware that the more secure their server or application is, the less accessible it becomes (it is harder to be accessed).

Of course, the best example for this is the proverb:
“The most secure server is the one that is switched off.”.

As ridiculous as it may sound, this is occasionally practiced by some organizations today, where their most secure servers are kept offline and/or in totally closed networks and are powered on only when they need to be.

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How to Secure a WordPress Site

how to secure a wordpress site

We’ll show you, How to Secure a WordPress Site. WordPress is by far the most popular blogging platform today. Being as popular as it is, it comes with its own strengths and weaknesses. The very fact that almost everybody uses it, makes it more prone to vulnerabilities. WordPress developers are doing a great job of fixing and patching the framework as new flaws are discovered, but that doesn’t mean that you can simply install and forget your installation. In this post, we will provide some of the most common ways of securing and strengthening a WordPress site. Securing a WordPress site is fairly easy task, just carefully follow this tutorial bellow.

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7 basic tips to improve Apache security

ApacheApache is the most popular and most used web server in the world, and it is the first web server used to serve more than 100 million websites around the world. Apache is know to be very secure web server, but in this article we will explain few basic configuration changes to make Apache even more secure on a CentOS VPS.

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Install Nikto web scanner on an Ubuntu VPS

Nikto is a Perl based, open source vulnerability tool which performs wide range of tests against web servers for thousands of vulnerabilitiesnikto, outdated versions and other known issues. Since Nikto is Perl based, it can run on all operating systems with Perl installed. In this tutorial we will show you how to install and use Nikto on an Ubuntu VPS. Its installation is very easy and fast.

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How to install SSHGuard on an Ubuntu VPS

logoSSHGuard is very useful monitoring tool for preventing brute force attacks. SSHGuard reads log messages from standard input and determines malicious activities. If an attack is detected, the attacking IP address is immediately blocked in the firewall. In this article we will guide you through the steps of installing SSHGuard on an Ubuntu VPS and protecting your server against brute-force attacks.

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How to upgrade a WordPress website via SSH

wordpress-logo-notext-rgbKeeping your WordPress installation, plugins and themes up to date is very important. You have to continually update WordPress immediately after a new version is released. The new versions will bring you new features, bug fixes, stability improvements and the most important – security fixes. If you do not update your WordPress  website it is very likely that your website will be hacked at some point. In this case you can lose your website content, your customers, lose your Google ranking, your website can be defaced, your server can be used for spamming, and many more. So, updating WordPress should be on the top of your list when it comes to the security of your Linux virtual server.

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How to install Suhosin on a Linux VPS

suhosinSuhosin is an advanced protection system for scripts and the PHP core itself. It is an open source PHP patch used for protecting the users and servers against numerous vulnerabilities and security flaws in the PHP basaed applications including WordPress, Joomla, Drupal, etc…

In this article we will guide you through the simple and fast process of installing Suhosin from source on a Linux VPS.

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