Linux Tutorials on the topic “security”

• How to Install Matrix Synapse Chat on Ubuntu 18.04 LTS

  Author: Muhammad Arul • Tags: linux, nginx, security, server, ubuntu • Comments: 0 • Published: Aug 10, 2018

  In this tutorial, we will show you step-by-step how to install and configure Matrix Synapse on Ubuntu 18.04 LTS. Matrix is a new ecosystem for decentralized communication in real time for open federated instant messaging and VoIP services.

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• How to Setup IKEv2 VPN Using Strongswan and Let's encrypt on CentOS 7

  Author: Muhammad Arul • Tags: centos, linux, security • Comments: 0 • Published: Aug 08, 2018

  Strongswan is an open source multiplatform IPSec implementation. It's an IPSec-based VPN solution that focuses on strong authentication mechanisms. In this tutorial, I will show you how to install an IPSec VPN server using Strongswan. We will create an IKEv2 VPN server with the 'EAP-MSCHAPv2' authentication and be using Letsencrypt certificates on CentOS 7 server.

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• Suricata IDS with ELK and Web Frontend on Ubuntu 18.04 LTS

  Author: Miguel • Tags: linux, security, server, ubuntu • Comments: 1 • Published: Aug 07, 2018

  Suricata is an IDS / IPS capable of using Emerging Threats and VRT rule sets like Snort and Sagan. This tutorial shows the installation and configuration on an Ubuntu 18.04 (Bionic Beaver) server.

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• Linux Basics: How To Create and Install SSH Keys on the Shell

  Author: howtoforge • Tags: linux, security, shell • Comments: 4 • Updated: Aug 06, 2018

  SSH keys offer a highly secure manner of logging into a server with SSH as against mere dependence on a password. This tutorial shows you how to generate an SSH key pair by using the ssh-keygen command and how to configure the SSH Daemon to only allow logins by key.

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• Full Drive Encryption with Debian 9.4 or Ubuntu 18.04 LTS

  Author: Chris Silva • Tags: debian, linux, security, ubuntu • Comments: 0 • Published: Jul 25, 2018

  This tutorial will show you step by step how to encrypt a full drive with Cryptsetup on Debian 9.4 or Ubuntu 18.04 LTS (Bionic Beaver). The drive that gets encrypted may not be part of an LVM volume.

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• Integration of CFSSL with the Lemur Certificate Manager

  Author: Ahmad • Tags: linux, security • Comments: 0 • Published: Jul 09, 2018

  This tutorial shows the integration of CFSSL with the Lemur certificate Manager. In the previous article on Lemur certificate manager, we have not used any third party root Certification Authority (CA) for the client certificates. Therefore, in this tutorial, PKI will be set up using CFSSL (Cloudflare's SSL) and integrated with the Lemur project.

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• Three Tools to Scan a Linux Server for Malware and Rootkits

  Author: Till Brehm • Tags: centos, debian, fedora, linux, other, security, ubuntu • Comments: 15 • Updated: Jun 05, 2018

  Servers connected to the internet are seeing a constant level of attacks and scans all day. While a firewall and regular system updates are a good first defense to keep the system safe, you should also check regularly that no attacker got in. The tools described in this tutorial are made for these sanity checks, they scan for malware, viruses and rootkits.

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• How to setup an SFTP server on CentOS

  Author: shahril bin kamaruzzaman • Tags: centos, linux, security, server • Comments: 12 • Updated: Mar 22, 2018

  This tutorial explains how to setup and use an SFTP server on CentOS. Before I start, let me explain what actually SFTP represents and what it is used for. SFTP stands for SSH File Transfer Protocol or Secure File Transfer Protocol. It uses a separate protocol packaged with SSH to provide a secure connection.

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• Monitoring and Detecting Modified Files using Tripwire on CentOS 7

  Author: Muhammad Arul • Tags: centos, linux, security • Comments: 0 • Published: Mar 02, 2018

  Tripwire is a powerful IDS that protects your system against unwanted changes. You can use it to monitor your system files, including website files, so when there is an unwanted file change, Tripwire will check your system and if set up correctly, can alert you on email.

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• Installation of Lemur Certificate Manager on Ubuntu

  Author: Ahmad • Tags: linux, security, ubuntu • Comments: 0 • Published: Feb 26, 2018

  This tutorial shows the installation of the Lemur certificate management software on Ubuntu 16.04 LTS. Lemur is an open source project of NetFlix and used to generate the certificates for customers/clients.

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