Networking

How To Create a High Availability HAProxy Setup with Corosync, Pacemaker, and Reserved IPs on Ubuntu 14.04 — Linux tutorial on Progressive Robot

How To Create a High Availability HAProxy Setup with Corosync, Pacemaker, and Reserved IPs on Ubuntu 14.04

This tutorial will show you how to create a High Availability HAProxy load balancer setup on the cloud provider, with the support of a Floating IP and the Corosync/Pacemaker cluster stack. The HAProxy load balancers will each be configured to split traffic between two backend application servers. If the primary load balancer goes down, the Floating IP will be moved to the secondary load balancer automatically, allowing service to resume.

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How To Install Suricata on Rocky Linux 8 — step-by-step Linux tutorial on Progressive Robot

How To Install Suricata on Rocky Linux 8

Suricata is a Network Security Monitoring (NSM) tool that uses sets of community created and user defined signatures (also referred to as rules) to examine and process network traffic. In this tutorial you will learn how to install Suricata, and how to customize some of its default settings on Rocky Linux 8 to suit your needs.

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Перечисление и удаление правил брандмауэра Iptables — step-by-step Security tutorial on Progressive Robot

Перечисление и удаление правил брандмауэра Iptables

Iptables — это брандмауэр, который играет важную роль в обеспечении сетевой безопасности многих систем Linux. В этом руководстве мы расскажем, как выполнять следующие действия с Iptables: вывод списка правил, очистка счетчиков пакетов и байтов, удаление правил, сброс цепочек (удаление всех правил в цепочке), а также полный сброс брандмауэра Iptables.

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How To Set Up an SSL Tunnel Using Stunnel on Ubuntu — step-by-step Linux tutorial on Progressive Robot

How To Set Up an SSL Tunnel Using Stunnel on Ubuntu

The Stunnel program is designed to work as an SSL encryption wrapper between remote client and local (inetd-startable) or remote server. It can be used to add SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the program’s code. What Stunnel basically does is that it turns any insecure TCP port into a secure encrypted port using OpenSSL package for cryptography.

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