How to Set Up Windows Server 2016 Software Defined Networking Controller The Network Controller is the cornerstone of the Software Defined Networking (SDN) solution in Windows Server 2016. It provides a centralised, programmable point of automation for managing, configuring, monitoring, and troubleshooting virtual and physical network infrastructure in your datacenter. Rather than configuring each network […]
How to Set a Hostname and FQDN on RHEL 7 A properly configured hostname is one of the most fundamental aspects of Linux system administration. On Red Hat Enterprise Linux 7, the hostname identifies your machine on the network and appears in log files, shell prompts, and monitoring tools. Getting it right — including the […]
How to Secure Nginx with Let’s Encrypt and Certbot on RHEL 7 Let’s Encrypt is a free, automated, and open Certificate Authority (CA) that provides SSL/TLS certificates to enable HTTPS on your web server. Certbot is the official client tool for obtaining and renewing Let’s Encrypt certificates. On RHEL 7, Certbot is available through the […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install and configure bind9 dns server on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure nginx server blocks on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]
Nginx is a high-performance web server that also excels as a reverse proxy, sitting in front of application servers and forwarding client requests to backend services running on internal ports. Using Nginx as a reverse proxy on RHEL 8 allows you to serve Node.js, Python, Java, or any HTTP-based application behind a clean public-facing endpoint […]
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up carp high availability on freebsd 12 on FreeBSD 12 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 […]
Introduction How to Install Scala and sbt on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]
Introduction How to Manage Node.js Versions with nvm on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]
🟡 Medium ⏱ 5–30 min Last verified: 14 June 2019 Affected versions: 14.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
