Linux Tutorials on the topic “security”
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Securing your ISPConfig 3 managed mailserver with a valid Let's Encrypt SSL certificate
Author: Thom Pol • Tags: ispconfig, linux, security • Comments: 0 • Published: Jun 19, 2025If you're running your own mailserver, it's best practice to connect to it securely with a SSL/TLS connection. You'll need a valid certificate for these secure connections. In this tutorial, we'll set up a Let's Encrypt certificate for our mailserver that renews automatically.
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How to Install and Use Nessus Vulnerability Scanner on Ubuntu 24.04
Author: Arvid L • Tags: linux, security, ubuntu • Comments: 0 • Published: Mar 14, 2025Nessus is a network scanning tool and vulnerability scanner developed by Tenable. It is used for vulnerability assessments, penetration testing, and ethical hacking. In this guide, you'll learn how to install Nessus on Ubuntu 24.04 server.
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How to Install and Use ClamAV Antivirus on Debian 12
Author: Arvid L • Tags: debian, linux, security • Comments: 2 • Published: Jan 14, 2025ClamAV or Clam Anti-Virus is an open-source anti-virus and anti-malware toolkit for multiple operating systems. In this tutorial, you'll learn how to install ClamAV on Debian 12 server. You'll also learn how to use 'freshclam' to update your database signatures, how to use 'clamscan' to scan files and directories on a Linux system, and also learn how to use 'clamav-daemon' for automatic scanning.
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How to Install Zeek Network Security Monitoring Tool on Ubuntu 24.04
Author: Arvid L • Tags: linux, security, ubuntu • Comments: 1 • Published: Jan 02, 2025Zeek (formerly Bro) is a free and open-source platform for network security monitoring. It is a powerful passive network traffic analyzer that investigates suspicious or malicious activity.
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Install WireGuard VPN on Debian 12
Author: Arvid L • Tags: debian, linux, security, server • Comments: 0 • Published: Nov 22, 2024Wireguard is an open-source VPN protocol alternative to IPSec, IKEv2, and OpenVPN. This guide will show you how to install Wireguard VPN on the Debian 12 server and configure the Wireguard client on a Linux machine.
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How to Install and Use Vuls Vulnerability Scanner on Debian 12
Author: Arvid L • Tags: linux, security, server • Comments: 0 • Published: Nov 11, 2024Vuls is an agentless, free, and open-source vulnerability scanner for Linux and FreeBSD. In this guide, you'll learn how to install Vuls Vulnerability Scanner on the Debian 12 server. You'll install Vuls, set up CVE databases, and then scan the local system and remote machine Vuls.
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How to Install Fail2ban on Ubuntu 24.04 Server
Author: Arvid L • Tags: linux, security, ubuntu • Comments: 0 • Published: Oct 15, 2024Fail2ban is free and open-source IPS (Intrusion Prevention Software) that helps administrators secure Linux servers against malicious login and brute-force attacks. In this guide, you'll learn how to install Fail2ba on Ubuntu 24.04 server.
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How to Install Suricata IDS on Ubuntu 24.04 Server
Author: Arvid L • Tags: linux, security, server, ubuntu • Comments: 0 • Published: Aug 30, 2024Suricata is an open-source IDS (Intrusion Detection System) and IPS (Intrusion Prevention System) developed by OSIF (open infosec foundation). It can monitor and examine network traffic and process every packet to detect malicious network activity.
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How to Install and Use SFTP on Linux Servers
Author: Arvid L • Tags: centos, debian, linux, security, server, ubuntu • Comments: 3 • Updated: Aug 29, 2024SFTP or SSH File Transfer Protocol is a method for securely transferring data between computers. In this guide, you will learn how to set up SFTP Server on a Linux system.
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How to scan for viruses with ClamAV on Ubuntu 24.04
Author: Bill Toulas • Tags: desktop, security, server, ubuntu • Comments: 22 • Updated: Jun 18, 2024There aren't many viruses made for Linux distributions and as such, most people who use such systems don't even bother using antivirus software. Those however who do want to be able to scan their system or other windows-based systems that are connected on a Linux PC through a network can use ClamAV. ClamAV is an open-source anti-virus engine that is built to detect viruses, trojans, malware, and other threats. It supports multiple file formats (documents, executables, or archives), utilizes multi-thread scanner features and receives updates for its signature database at least 3-4 times a day.
