How to Install Java and Configure JAVA_HOME on RHEL 7 Java remains one of the most widely deployed application runtimes in enterprise environments, and RHEL 7 provides excellent support for running OpenJDK through its official repositories. Whether you are deploying a Spring Boot application, running Apache Tomcat, building microservices, or working with big data frameworks […]
How to Install Rust and Compile System Tools on RHEL 7 Rust is a systems programming language that offers memory safety without a garbage collector, making it an ideal choice for building high-performance command-line utilities, daemons, and system-level tools. On RHEL 7, the system compiler and C runtime are older, but Rust’s installer rustup sidesteps […]
How to Install Go and Build CLI Tools on RHEL 7 Go (also known as Golang) is a statically typed, compiled language developed by Google that has become a popular choice for building command-line tools, system utilities, microservices, and cloud-native applications. Its fast compilation times, straightforward toolchain, and ability to produce single, self-contained binaries make […]
How to Set Up a Load-Balanced PostgreSQL Cluster with Patroni on RHEL 7 Running a single PostgreSQL instance is a liability in any production environment — it is a single point of failure that, when it goes down, takes your entire application with it. Patroni is an open-source, Python-based high-availability solution for PostgreSQL that uses […]
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 […]
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, […]
How to Install and Use Podman Pods on RHEL 7 Podman is a daemonless, rootless-capable container engine that ships with modern versions of RHEL and is available via EPEL on RHEL 7. One of Podman’s most powerful features is pods — a concept borrowed directly from Kubernetes. A pod is a group of one or […]
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. […]
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), […]
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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