authentication

How to Install and Configure Consul for Service Discovery on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Consul for Service Discovery on RHEL 7

How to Install and Configure Consul for Service Discovery on RHEL 7 As applications grow beyond a single server, tracking where every service is running — and whether it is healthy — becomes a significant operational challenge. Consul, developed by HashiCorp, is a distributed, highly available service mesh and service discovery tool that solves this […]

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How to Configure Network QoS with tc on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Network QoS with tc on RHEL 7

How to Configure Network QoS with tc on RHEL 7 Quality of Service (QoS) is the practice of managing network traffic to ensure that critical applications receive the bandwidth and latency guarantees they need. Linux provides a sophisticated traffic control subsystem accessible through the tc (traffic control) command, part of the iproute2 package. With tc, […]

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How to Set Up a VPN Server with StrongSwan IPsec on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a VPN Server with StrongSwan IPsec on RHEL 7

How to Set Up a VPN Server with StrongSwan IPsec on RHEL 7 A Virtual Private Network (VPN) allows remote users and branch offices to securely connect to your corporate network over the public internet. StrongSwan is a robust, open-source IPsec-based VPN solution that supports IKEv2, the modern and recommended key-exchange protocol for road-warrior configurations. […]

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How to Install and Configure FreeIPA on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure FreeIPA on RHEL 7

How to Install and Configure FreeIPA on RHEL 7 FreeIPA is an integrated identity and authentication solution that combines LDAP (via 389 Directory Server), Kerberos, DNS, a certificate authority (Dogtag PKI), and a web-based management interface into a single coherent platform. It is Red Hat’s upstream open-source project that underpins Red Hat Identity Management (IdM), […]

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How to Configure Kerberos Authentication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Kerberos Authentication on RHEL 7

How to Configure Kerberos Authentication on RHEL 7 Kerberos is a network authentication protocol that uses symmetric-key cryptography to allow clients and servers to prove their identity to each other securely without transmitting passwords over the network. It is the backbone of authentication in Active Directory environments and is natively supported across Linux through MIT […]

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How to Set Up LDAP with OpenLDAP on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up LDAP with OpenLDAP on RHEL 7

How to Set Up LDAP with OpenLDAP on RHEL 7 OpenLDAP is the most widely deployed open-source implementation of the Lightweight Directory Access Protocol and serves as the foundation for centralized authentication, authorization, and user directory services across Linux environments. On RHEL 7, OpenLDAP is available directly from the base repositories and integrates tightly with […]

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How to Install and Configure Traefik Reverse Proxy on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Traefik Reverse Proxy on RHEL 7

How to Install and Configure Traefik Reverse Proxy on RHEL 7 Traefik is a modern, cloud-native reverse proxy and load balancer that differentiates itself from Nginx and HAProxy through its dynamic configuration model — routing rules can be updated at runtime without restarting the proxy. Originally designed for microservices and Docker environments, Traefik works equally […]

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How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7

How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7 High availability eliminates single points of failure by ensuring that if one server goes down, another takes over seamlessly. For web servers, one of the most common HA patterns is a Virtual IP (VIP) address that floats between two or more […]

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How to Set Up Pacemaker and Corosync for High Availability on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Pacemaker and Corosync for High Availability on RHEL 7

How to Set Up Pacemaker and Corosync for High Availability on RHEL 7 High availability (HA) clustering prevents individual server failures from causing service outages by automatically detecting node failures and restarting workloads on surviving nodes. On RHEL 7, the standard HA stack is built from three components: Corosync, which provides reliable cluster messaging and […]

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How to Set Up SSH Key Authentication on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up SSH Key Authentication on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up ssh key authentication on freebsd 14 on FreeBSD 14 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any […]

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