How To Use SuExec in Apache to run CGI Scripts on an Ubuntu VPS
This article will teach you how to use SuExec in Apache to run CGI scripts on an Ubuntu VPS.
Understanding the SSH Encryption and Connection Process
SSH, or secure shell, is an encrypted protocol used to communicate with remote servers safely. The practical uses of SSH are widely discussed in other guides. In this article, we’ll examine the underlying encryption and connection procedures that make SSH the go-to method of administering remote systems.
Cómo endurecer OpenSSH en Ubuntu 18.04
El autor seleccionó la Electronic Frontier Foundation Inc para recibir una donación como parte del programa Write for DOnations. Los servidores Linux suelen…
How To Set Up vsftpd for a User’s Directory on Debian 9
FTP, short for File Transfer Protocol, is a network protocol that was once widely used for moving files between a client and server. It has since been replaced by faster, more secure, and more convenient ways of delivering files.
How To Protect Your Server Against the Dirty COW Linux Vulnerability
On October 21, 2016, a privilege escalation vulnerability in the Linux kernel was disclosed. The bug is nicknamed Dirty COW because the underlying issue was a race condition in the way kernel handles copy-on-write (COW). Exploiting this bug means that a regular, unprivileged user on your server can gain write access to any file they can read, and can therefore increase their privileges on the system. This tutorial explains how to protect your server from this vulnerability.
An Introduction to Basic FreeBSD Maintenance
When administering a FreeBSD server, it is important to understand the basic maintenance procedures that will help you keep your server in good shape. In this guide, we will cover the basic procedures needed to keep your server up-to-date and functioning properly. We will cover how to update the base operating system maintained by the FreeBSD team. We will also discuss how to update and maintain optional software installed through the ports or packages systems.
How To Set Up an OpenVPN Server on Debian 9
OpenVPN is a full-featured, open-source Secure Socket Layer (SSL) VPN solution that accommodates a wide range of configurations. In this tutorial, you will set up an OpenVPN server on a Debian 9 server and then configure access to it from Windows, OS X, iOS and/or Android devices. This tutorial will keep the installation and configuration steps as simple as possible for each of these setups.
How To Protect Your Linux Server Against the GHOST Vulnerability
On January 27, 2015, a GNU C Library (glibc) vulnerability, referred to as the GHOST vulnerability, was announced to the general public. In summary, the vulnerability allows remote attackers to take complete control of a system by exploiting a buffer overflow bug in glibc. It is highly recommended that you update and reboot all of your affected Linux servers. We will show you how to test if your systems are vulnerable and, if they are, how to update glibc to fix the vulnerability.
How To Set Up an OpenVPN Server on Ubuntu 18.04
OpenVPN is a full-featured, open-source Secure Socket Layer (SSL) VPN solution that accommodates a wide range of configurations. In this tutorial, you will set up an OpenVPN server on an Ubuntu 18.04 server and then configure access to it from Windows, OS X, iOS and/or Android devices. This tutorial will keep the installation and configuration steps as simple as possible for each of these setups.
How To Use GPG to Encrypt and Sign Messages
GPG, or GNU Privacy Guard, is a public key cryptography implementation. This allows for the secure transmission of information between parties and can be used to verify that the origin of a message is genuine. In this guide, we will discuss how GPG works and how to…
