What Is WordPress XML-RPC and How to Stop an Attack

What Is WordPress XML-RPC and How to Stop an Attack

xml-rpc server accepts post requests only

XML-RPC is a remote procedure call protocol that allows anyone to interact with your WordPress website remotely. In other words, it’s a way to manage your site without having to log in manually via the standard “wp-login.php” page. It’s widely used by plugins, most famously by Automattic’s own Jetpack plugin. These days, however, the word “XML-RPC” has gotten a bad name. In this tutorial, we will explain what is WordPress XML-RPC and how to stop an XML-RPC attack on your WordPress website. 

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How to Password Protect Directories in cPanel

How to Password Protect Directories in cPanel

Normally, if you create a folder on your site, you can access all the files inside it just by visiting the file’s URL. Sometimes however, you want to password protect directories in cPanel – either you’re testing a new design that you’re not ready to show the world, or it’s a staging area for your site. Or maybe you just want to prevent unauthorized access to sensitive parts your site. Like the “wp-admin” area of WordPress for example.

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Common Firewall Rules and Commands in iptables

Common Firewall Rules and Commands in iptables

Today we are going to show you some common firewall rules and commands in iptables. Iptables is a useful command line utility for configuring Linux kernel firewall. Iptables contains five tables: raw, filter, nat, mangle and security. Each table consist of chains. A chain is a list of firewall rules which are followed in order. Let’s get started with some common firewall rules and commands in iptables.

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How To Set Up SSH Keys on Ubuntu 16.04

How To Set Up SSH Keys on Ubuntu 16.04

We’ll show you how to set up SSH keys on Ubuntu 16.04. SSH or Secure SHELL is the most popular and trusted UNIX-based cryptographic network protocol. It can be used for a secure data communication, remote server logins, remote command execution, and many other secure network services between two networked servers. Normally, password authentication is used to connect to a remote server via SSH but in this tutorial we will show you how to login to your Ubuntu 16.04 VPS using SSH keys. We will generate a key pair (private and public key), place the private key on your server and then use your locally stored private key to gain access to your server. This method provides a more secure way of connecting to your server, instead of just using a password.

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How to Install and Configure OpenSSH on Ubuntu 16.04

How to Install and Configure OpenSSH on Ubuntu 16.04

In this tutorial we will show you how to install, configure and use OpenSSH on Ubuntu 16.04. SSH (Secure Shell) is a protocol that allows you to access a remote machine securely while OpenSSH is a set of tools based on the SSH protocol. Today we will show you how to install and configure OpenSSH on a Linux VPS using Ubuntu 16.04 as an operating system.

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How to Change the root Password in Linux

How to Change Root Password in Linux
How to Change Root Password in Linux

Change Root Password LinuxIn today’s tutorial, we will show you how to change the root password in Linux. The root account on a Linux machine is the highest authority account on the system. It has control over everything, can delete and modify anything, and has permission to run any program. Simply put, the root account can do anything that the system supports. Typically, casual users never need to use the root account, while more experienced users need the root account more often, especially if they spend a large amount of their time at a terminal. So, even if you don’t use the root account much, it helps to put a more secure password so that malicious users don’t log into the root account and wreak havoc on your system.

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